CN220667430U - Ladder of marking time - Google Patents

Abstract

The application provides a ladder of marking time, this ladder of marking time includes support body, connecting piece and gyro wheel. The frame body is provided with a first side and a second side which are opposite, an installation space is further arranged in the frame body, and a communication port is formed in the second side of the installation space; the connecting piece is connected with the frame body and is positioned in the installation space; the roller is arranged on the connecting piece, and in the height direction of the frame body, the lowest point of the roller is not lower than the lowest point of the frame body; the roller also partially extends out of the installation space through the communication port. The utility model provides a step ladder can solve the truckle on the current step ladder and is kicked by the staff easily and cause the technical problem of industrial accident.

Description

Ladder of marking time

Technical Field

The application relates to the technical field of cat ladder devices, in particular to a step ladder.

Background

In the loading and unloading link of the express delivery transfer center, in order to facilitate the stacking of the express items at high positions, a step ladder (or a stacking goods ladder or a climbing ladder) is generally needed, and workers can better stack the express items at high positions by climbing different heights through the step ladder.

Some of the existing step ladders can be designed with casters which assist in moving, the casters are mounted on the side faces of the step ladder, and then the step ladder can be stably placed when being used, and the step ladder can move quickly by means of the casters when moving. However, the structure can also cause work injury accidents caused by the fact that the casters are easy to kick by workers, or the casters are easy to collide and damage.

Disclosure of Invention

The embodiment of the application provides a ladder of marking time to solve the truckle on the current ladder of marking time and kick by the staff easily and cause the technical problem of industrial accident.

For realizing above-mentioned purpose, the ladder of marking time that this application provided includes support body, connecting piece and gyro wheel. The frame body is provided with a first side and a second side which are opposite, an installation space is further arranged in the frame body, and a communication port is formed in the second side of the installation space; the connecting piece is connected with the frame body and is positioned in the installation space; the roller is arranged on the connecting piece, and in the height direction of the frame body, the lowest point of the roller is not lower than the lowest point of the frame body; the roller also partially extends out of the installation space through the communication port.

Optionally, in an embodiment, the frame body includes a first frame and a second frame that are disposed at intervals, the first frame and the second frame form the installation space therebetween, and two ends of the connecting piece are respectively connected with the first frame and the second frame.

Optionally, in an embodiment, the first frame and the second frame each include a connecting upright and a connecting cross bar, the connecting upright is located on the second side, one end of the connecting cross bar is connected to the connecting upright, and the other end extends towards the first side; the connecting piece comprises a first hack lever, two ends of the first hack lever are respectively connected with the first hack lever, the idler wheels are installed on the first hack lever, and two ends of the second hack lever are respectively connected with the connecting vertical rod and the connecting cross rod.

Optionally, in an embodiment, the connecting uprights and the connecting crossbars are perpendicular to each other, and the second rack bar extends at an angle of 45 ° with respect to the connecting uprights and the connecting crossbars.

Optionally, in an embodiment, the first and/or second frame bar is a hollow tubular structure.

Optionally, in an embodiment, the connecting member is welded or integrally formed with the frame body.

Optionally, in an embodiment, the roller includes a wheel body and a wheel frame, where the wheel body is rotatably mounted on the wheel frame, and the wheel frame is connected to the connecting piece; the wheel frame is gradually inclined toward the lower end of the frame body in a direction in which the first side is directed toward the second side.

Optionally, in an embodiment, the wheel carrier extends perpendicular to the direction of extension of the connection.

Optionally, in an embodiment, the rotating shaft of the wheel body is disposed corresponding to an outer edge of the frame body at the second side.

Optionally, in an embodiment, the step ladder further includes a connection plate, the connection plate is fixedly connected with the connection piece, and the wheel frame is detachably connected with the connection plate.

The utility model provides a ladder of marking time sets up a connecting piece through in the installation space of support body, and the gyro wheel is installed again on the connecting piece to in the direction of height of support body, make the minimum of gyro wheel be not less than the minimum of support body, and then make the ladder of marking time when using, the bottom of support body is direct with ground contact and can stand subaerial steadily, avoid the gyro wheel to land and drive the condition that the support body removed easily. Simultaneously, the ladder of marking time that this application provided still makes the gyro wheel part stretch out installation space through the intercommunication mouth, and then makes the ladder of marking time when needs remove, only needs the support body to the slope of second side and makes gyro wheel and ground contact, can be with the help of the ladder of marking time of gyro wheel fast movement, very convenient and fast.

In addition, compare the structural scheme of current gyro wheel direct mount in the side of support body, the gyro wheel in this application ladder of marking time only part stretches out installation space, and the gyro wheel is less in the degree of support body side promptly, and then has reduced the gyro wheel and is kicked by the staff and cause the industrial accident, and is bumped by other foreign matter and cause the probability of damage, has solved the truckle on the current ladder of marking time easily by the staff kicked and cause the technical problem of industrial accident.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from the structures shown in these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic view of an embodiment of a step ladder of the present application;

FIG. 2 is a schematic view of a portion of an embodiment of a frame of the step ladder of the present application;

FIG. 3 is a schematic view of an embodiment of the stair step of the present application in use;

FIG. 4 is a schematic view of an embodiment of the stair step of the present application during movement;

FIG. 5 is a schematic view of an embodiment of a connector in a step ladder of the present application;

FIG. 6 is a schematic view of an embodiment of a roller in a step ladder of the present application.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						10	Ladder of marking time	25	Upright post	30	Connecting piece
20	Frame body	251	Connecting upright rod	31	First hack lever
						21	First side	26	Cross bar	32	Second hack lever
22	Second side	261	Connecting cross bar	40	Roller wheel
						23	Step	27	Reinforcing rod	41	Wheel body
231	Pedal plate	28	First frame	42	Wheel carrier
						24	Installation space	29	Second frame	50	Connecting plate
241	Communication port	210	Connecting rod

The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides a ladder of marking time to solve the truckle on the current ladder of marking time and kick by the staff easily and cause the problem of industrial accident. The following description will be given with reference to the accompanying drawings.

In the embodiment of the present application, as shown in fig. 1, the stepladder 10 includes a frame body 20, a connecting member 30, and rollers 40. Wherein the frame 20 has a multi-step 23 and opposite first and second sides 21 and 22, and the heights of the multi-step 23 sequentially increase in a direction in which the first side 21 points to the second side 22; the frame 20 is further provided with an installation space 24, and the installation space 24 is located below the step 23 and is provided with a communication port 241 at the second side 22. Specifically, in this embodiment, referring to fig. 1 and 2, the frame body 20 includes a first frame 28 and a second frame 29 that are disposed at intervals, each of the first frame 28 and the second frame 29 includes a plurality of vertical rods 25, the plurality of vertical rods 25 are disposed in a row and are spaced apart from each other, and the upper ends of two adjacent vertical rods 25 are connected with a cross bar 26, so that the plurality of vertical rods 25 are relatively fixed. Of course, in other embodiments, a reinforcing rod 27 is further provided at a middle position of two adjacent uprights 25 to enhance the structural strength of the frame 20.

The first frame 28 and the second frame 29 are also connected by a plurality of connecting rods 210, in particular, in each row of uprights 25, the uprights 25 closer to the second side 22 are longer, and the two uprights 25 of the same length in the first frame 28 and the second frame 29 are connected by one connecting rod 210. The frame 20 further includes a plurality of pedals 231, and two upright rods 25 with the same length in the two rows of upright rods 25 and corresponding connecting rods support one pedal 231 together, so as to form a multi-step 23. Since the length of the upright 25 is longer closer to the second side 22, the height of the multi-step steps 23 is sequentially increased in the direction in which the first side 21 is directed to the second side 22, and thus the worker can step on different steps 23 to stand on different heights while using the stair 10.

In this embodiment, the space between the first frame 28 and the second frame 29 is the installation space 24, and the communication port 241 is formed between the two uprights 25 closest to the second side 22.

Of course, other configurations of the frame 20 may be selected in addition to the above-described "comprising the first frame 28 and the second frame 29". For example, in other embodiments, the frame 20 has a block structure, and is directly machined with a step surface to form a multi-step 23, and further, a groove is formed on the second side 22 to form an installation space 24. For another example, the frame 20 is mainly configured by a plurality of support plates which are arranged side by side and are connected with each other, a plurality of pedals 231 are supported on the support plates, a multi-step 23 is further formed, and a plurality of support plates are provided with notches at the second side 22 to form the installation space 24.

When the technical scheme is applied, the specific structural form of the frame body 20 can be flexibly set in practical situations, and only the multi-step 23 and the installation space 24 are formed. In addition, the size, the forming material, the number of steps 23, etc. of the frame body 20 are not particularly limited, and may be selected according to actual needs.

The installation space 24 is mainly used for accommodating the connecting member 30 and the roller 40 mounted on the connecting member 30, specifically, in this embodiment, as shown in fig. 1, the connecting member 30 is connected with the frame body 20 and is located in the installation space 24, the connecting member 30 may be in a rod-shaped, plate-shaped, block-shaped structure, etc., the connection manner between the connecting member 30 and the frame body 20 is not limited, and may be welding, bonding, clamping, screw connection, etc., and only the connecting member 30 needs to be stably fixed on the frame body 20. For the size of the connecting member 30, taking the structural scheme that the installation space 24 is formed by spacing two rows of upright posts 25 as an example, the connecting member 30 has a substantially rod-shaped structure and is adapted in length to the spacing between the two rows of upright posts 25, and then both ends of the connecting member 30 are respectively fixed to the two rows of upright posts 25.

The roller 40 is mounted on the connecting member 30, specifically, referring to fig. 6, the roller 40 in this embodiment includes a wheel body 41 and a wheel frame 42, the wheel body 41 is rotatably mounted on the wheel frame 42 through a rotation shaft, and the wheel frame 42 is mounted on the connecting member 30 with the wheel body 41. Likewise, the connection between the wheel frame 42 and the connection member 30 is not limited, and may be by welding, bonding, clamping, screw connection, or by a third party connection structure, etc. In addition, in the present embodiment, two rollers 40 are provided, and the two rollers 40 are disposed at intervals along the extending direction of the connecting member 30; of course, three, four, six, etc. of the rollers 40 may be designed as needed, and the plurality of rollers 40 may be arranged side by side along the connecting member 30.

When the roller 40 is mounted on the connection member 30, the lowest point of the roller 40 is not lower than the lowest point of the frame 20 in the height direction of the frame 20, that is, the lower end of the frame 20 is grounded to be stably stood on the ground when the stair 10 is in the use state or the idle state, and at this time, the roller 40 is separated from the ground or is not in pressure contact with the ground. For example, still taking a structure including two rows of upright posts 25 in the frame 20 and an installation space 24 formed between the two rows of upright posts 25 as an example, among the plurality of upright posts 25, at least the upright posts 25 at the first side 21 and the second side 22 are in contact with the ground, and the lower end of the upright post 25 in contact with the ground is the lowest point of the frame 20. Thus, when the roller 40 is installed, the portion of the roller 40 closest to the ground needs to be higher than the lower end of the upright 25 contacting the ground.

It can be appreciated that the design can ensure that the stepping ladder 10 can stably stand on the ground by the friction force between the bottom end of the frame body 20 and the ground in the use process, so that the situation that the roller 40 is grounded to easily drive the frame body 20 to move is avoided, and the safety of staff is ensured.

It should be noted that, the "use state or the idle state" mentioned above refers to a state in which the step ladder 10 naturally stands on the ground in normal use or idle, and does not include a state of being tilted or lying down. Therefore, the "height direction of the frame 20" is also referred to as the height direction of the frame 20 in the use state or the idle state of the stair 10, and is specifically the up-down direction in fig. 1.

In this embodiment, referring to fig. 1 to 4, the roller 40 also partially extends out of the installation space 24 through the communication opening 241, for example, half of the roller 40 extends out of the installation space 24 and protrudes out of the second side 22 of the frame 20, so that when the step ladder 10 needs to be moved, the step ladder 10 can be moved quickly by means of the roller 40 only by tilting the frame 20 toward the second side 22 until the roller 40 contacts the ground, which is very convenient and fast.

It can be appreciated that compared with the existing structural scheme that the roller 40 is directly installed on the side surface of the frame body 20, the roller 40 in the stepping ladder 10 of the application only partially extends out of the installation space 24, namely, the extent that the roller 40 protrudes out of the side surface of the frame body 20 is smaller, so that the probability that the roller 40 is kicked by a worker to cause a work injury accident and is bumped by other foreign objects to cause damage is reduced, and the technical problem that casters on the existing stepping ladder 10 are easy to be kicked by the worker to cause the work injury accident is effectively solved.

Alternatively, in an embodiment, as shown in fig. 1, the frame 20 includes a first frame 28 and a second frame 29 disposed at intervals, the first frame 28 and the second frame 29 form the installation space 24 therebetween, and two ends of the connecting member 30 are respectively connected to the first frame 28 and the second frame 29. The specific structure of the first frame 28 and the second frame 29 may be described above, and will not be described herein. It will be appreciated that the frame 20 formed by the first frame 28 and the second frame 29 is relatively simple and lightweight, and also facilitates the mounting of the connector 30 on the frame 20.

Specifically, the connecting member 30 may be connected to two upright posts 25 closest to the second side 22, where, in order to ensure that the roller 40 can be partially located in the installation space 24 after being mounted on the connecting member 30, the connecting member 30 may be in a semi-enclosed structure and partially recessed into the installation space 24, and the roller 40 may be mounted on the recessed portion of the connecting member 30.

Alternatively, in order to make the structure of the connecting element 30 as simple as possible, the connecting element 30 may be connected to the uprights 25 of each row 25 at a central position but relatively close to the second side 22, for example to the second upright 25 of the second side 22 directed towards the first side 21.

Still alternatively, in an embodiment, referring to fig. 1 and 5, the first frame 28 and the second frame 29 each include a connecting upright 251 and a connecting cross bar 261, respectively, and the connecting upright 251 is located on the second side 22, that is, one upright 25 closest to the second side 22 in each row of uprights 25 is the connecting upright 251. One end of the connecting rail 261 is connected with the connecting upright 251 and the other end extends toward the first side 21, in particular, the connecting rail 261 is connected with all the uprights 25 in each row of uprights, so that the structure of the first frame 28 or the second frame 29 is more stable. As shown in fig. 5, the connecting member 30 has a substantially h-shaped structure and includes a first frame bar 31 and two second frame bars 32, the first frame bar 31 is connected between the two second frame bars 32, and the roller 40 is mounted on the first frame bar 31; each of the second rack bars 32 is connected between the connecting uprights 251 and the connecting cross bars 261 of the same row, specifically, each of the second rack bars 32 is inclined, and both ends of each of the second rack bars 32 are fixedly connected with the corresponding connecting uprights 251 and connecting cross bars 261, respectively. It can be appreciated that the structure of the connecting piece 30 is simple and easy to obtain, the connecting piece 30 is convenient to be connected with the frame body 20, the second frame rod 32 can serve as a reinforcing rib to strengthen the connecting vertical rod 251 and the connecting cross rod 261, and the structural strength of the whole frame body 20 can be improved.

The second rack bar 32 is connected between the connecting upright 251 and the connecting cross bar 261 in an inclined manner, and the inclination angle thereof can be selected according to the needs, for example, the included angle between the second rack bar 32 and the connecting upright 251 is 30 °, 45 °, 60 ° or the like. For example, in an alternative embodiment, as shown in fig. 3 or 4, the connecting uprights 251 and the connecting cross bar 261 of the same row are perpendicular to each other, and the second frame bar 32 extends at an angle of 45 ° with respect to the connecting uprights 251 and the connecting cross bar 261. That is, the included angle between the second rack bar 32 and the connection or between the two lateral directions is 45 °, it can be understood that when the included angle between the second rack bar 32 and the connection vertical bar 251 is smaller than 45 °, the portion of the roller 40 extending out of the installation space 24 is more, which is not beneficial to reducing the probability of the roller 40 being kicked by a worker to cause a work injury accident; when the included angle between the second frame bar 32 and the connecting upright bar 251 is greater than 45 °, the portion of the roller 40 extending out of the installation space 24 is less, the frame 20 needs to be inclined to the second side 22 by a larger angle to make the roller 40 contact the ground, and at this time, the worker may need to bend down, thereby making it inconvenient to move the step ladder 10. Therefore, when the second frame bar 32 extends at an angle of 45 ° with respect to the connecting upright 251 and the connecting cross bar 261, it is possible to reduce the possibility that the roller 40 is kicked by the worker, and it is convenient for the worker to move the step ladder 10.

Optionally, in an embodiment, the first frame rod 31 and/or the second frame rod 32 are hollow tubular structures, and it is understood that when the first frame rod 31 and the second frame rod 32 are hollow tubular structures, the weight of the connecting piece 30 may be lighter, so as to avoid the situation that the weight of the step ladder 10 increases more after the connecting piece 30 is disposed on the frame body 20. In other embodiments, the connecting members 30, the uprights 25, the cross bars 26, the connecting rods, and the reinforcing rods are hollow square tube structures and are of the same material, so that all raw materials for making the step ladder 10 are more conveniently obtained, and the whole step ladder 10 is lighter and convenient to move.

Optionally, in an embodiment, the connecting piece 30 is welded to the frame 20 or integrally formed, so that the connection strength between the connecting piece 30 and the frame 20 can be improved, and the reliability of the stair 10 can be further improved.

Optionally, in an embodiment, referring to fig. 1, 3 and 6, the roller 40 includes a wheel body 41 and a wheel frame 42, where the wheel body 41 is rotatably mounted on the wheel frame 42 through a rotation shaft, and the wheel frame 42 is connected to the connecting piece 30; and the wheel frame 42 is gradually inclined toward the lower end of the frame body 20 in a direction in which the first side 21 is directed toward the second side 22. It will be appreciated that when the wheel frame 42 is gradually inclined toward the lower end of the frame 20, the wheel body 41 can be relatively close to the ground, and when the frame 20 is inclined toward the second side 22, the wheel body 41 can be more quickly contacted with the ground, and the worker can also more quickly move the step ladder 10 to the next working position, which is beneficial to improving the working efficiency.

Alternatively, in one embodiment, as shown in fig. 3 or 4, the wheel frame 42 extends perpendicular to the extending direction of the connection member 30. Specifically, the wheel frame 42 is connected to the first frame bar 31 and is perpendicular to the first frame bar 31, i.e. the wheel frame 42 also extends at an angle of 45 ° with respect to the connecting uprights 251 and the connecting cross bar 261, in a direction opposite to the second frame bar 32. It will be appreciated that such a design not only facilitates the installation of the wheel frame 42 on the link 30, but also better supports the weight of the entire frame body 20 through the first and second frame bars 31 and 32 when the stepladder 10 is moved.

Alternatively, in an embodiment, as shown in fig. 3, the rotation axis of the wheel 41 is disposed corresponding to the outer edge 221 of the frame 20 at the second side 22, so that half of the wheel 41 just protrudes out of the installation space and half is located in the installation space. It will be appreciated that if the portion of the wheel body 41 extending out of the installation space 24 is large, the probability of the roller 40 being kicked by a worker cannot be reduced well, and if the portion of the wheel body 41 extending out of the installation space 24 is small, the frame 20 needs to be inclined to the second side 22 by a large angle when the step ladder 10 needs to be moved, which is inconvenient for the worker to move the step ladder 10. Therefore, when the wheel body 41 is half extended out of the installation space 24 and half is located in the installation space 24, the purpose of reducing the probability of the roller 40 being kicked by a worker is achieved, and the worker does not move the step ladder 10 inconveniently.

Optionally, in an embodiment, as shown in fig. 1, the step ladder 10 further includes a connection plate 50, the connection plate 50 is fixedly connected to the connection member 30, and the wheel frame 42 is detachably connected to the connection plate 50. Specifically, the connecting plate 50 may be fixedly connected with the connecting member 30 by welding, bonding, or the like, the connecting plate 50 may be provided with a threaded hole, the wheel frame 42 may be fixed on the connecting plate 50 by a bolt, and then the roller 40 may be conveniently detached when the roller 40 needs to be detached for maintenance or replacement. On this basis, a plurality of threaded holes may be formed in the connection plate 50, and when the wheel frame 42 is mounted in different threaded holes, the distance between the wheel body 41 and the ground is different, so that the mounting height of the roller 40 can be adjusted according to the actual ground condition.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments. In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.

The foregoing has outlined the steps of the embodiments of the present application in detail, and the specific examples are presented herein to illustrate the principles and embodiments of the present application and to assist in understanding the methods and concepts of the present application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.

Claims (10)

1. A step ladder, comprising:

the rack body is provided with a first side and a second side which are opposite, an installation space is further arranged in the rack body, and a communication port is formed in the second side of the installation space;

the connecting piece is connected with the frame body and is positioned in the installation space; the method comprises the steps of,

the roller is arranged on the connecting piece, and in the height direction of the frame body, the lowest point of the roller is not lower than the lowest point of the frame body; the roller also partially extends out of the installation space through the communication port.

2. A stepping ladder according to claim 1, wherein said frame comprises a first frame and a second frame disposed at intervals, said first frame and said second frame defining said installation space therebetween, and said connecting members are connected at both ends thereof to said first frame and said second frame, respectively.

3. A step ladder as set forth in claim 2 wherein each of said first and second frames includes a connecting pole and a connecting rail, respectively, said connecting pole being located on said second side, one end of said connecting rail being connected to said connecting pole and the other end extending toward said first side;

the connecting piece includes first hack lever, the both ends of first hack lever are connected with the second hack lever respectively, the gyro wheel is installed on the first hack lever, the both ends of second hack lever respectively with connect the pole setting with connect the horizontal pole and be connected.

4. A step ladder as claimed in claim 3, wherein said connecting uprights and said connecting crossbars are mutually perpendicular, and said second frame bars extend at an angle of 45 ° with respect to said connecting uprights and said connecting crossbars.

5. A step ladder as claimed in claim 3, characterised in that the first and/or second frame bars are hollow tubular structures.

6. A step ladder as claimed in claim 1, wherein the connector is welded or integrally formed with the frame.

7. A step ladder as claimed in any one of claims 1 to 6, wherein the roller comprises a wheel body and a wheel frame, the wheel body being rotatably mounted on the wheel frame, the wheel frame being connected to the connecting member;

the wheel frame is gradually inclined toward the lower end of the frame body in a direction in which the first side is directed toward the second side.

8. A stepladder according to claim 7, characterized in that the wheel frame extends perpendicularly to the extension direction of the connection piece.

9. A step ladder as set forth in claim 7 wherein the rotational axis of the wheel body is disposed corresponding to the outer edge of the frame at the second side.

10. The step ladder of claim 7, further comprising a web fixedly connected to the connector, the wheel frame being removably connected to the web.