Portable safety engineering ladder

Abstract

The utility model discloses a portable safety engineering ladder, which relates to the technical field of engineering ladders, and comprises a pair of door-shaped frames, a plurality of pairs of first foot rest levers are fixedly arranged in the pair of door-shaped frames, chutes are formed in the tops of the door-shaped frames, U-shaped rods are arranged in the chutes in a sliding manner, and a plurality of second foot rest levers are fixedly arranged in the middles of the U-shaped rods; and connecting plates are fixedly arranged at the tops of the U-shaped rods. Through cooperative use of the U-shaped rod, the second foot rest lever, the limiting groove, the limiting block, the round rod, the spring and the pull ring, the U-shaped rod can be lifted during use to reach a proper use height, the U-shaped rod can be retracted during transportation, and through cooperative use of the handle, the hook and the hanging ring, the door-shaped frame is connected into a whole through the hook during carrying and carrying, so that the use is convenient. And therefore, carrying is more convenient, and the situation of rotation is avoided.

Description

Technical Field

[0001] The utility model relates to the field of engineering ladders, in particular to a portable safety engineering ladder. Background Art

[0002] As the name suggests, an engineering ladder is a ladder used for engineering purposes. Nowadays, ladders are a widely used tool in engineering and daily life. When performing high-altitude operations, various types of ladders are often used for auxiliary operations. When frequent high-altitude operations are required in different spaces, it is particularly convenient to use ladders for high-altitude operations.

[0003] When in use, traditional safety engineering ladders are usually folded to adjust the height, which results in a large storage space being required during transportation. In addition, the ladders are not very convenient to carry and are prone to rotation, making it difficult to meet people's usage needs. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a portable safety engineering ladder.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] The ladder system of claim 1, wherein the first and second legs are connected to the ladder by a threaded mount and a second lever is provided on the ladder by a user pushing the ladder handle down the ladder into the ladder.

[0007] Preferably, a handle is fixedly provided on one side of the door-shaped frame, a hook is rotatably provided on the other side of one of the door-shaped frames, and a hanging ring is fixedly provided on the other side of the other door-shaped frame.

[0008] Preferably, the limiting holes are distributed in a linear array, and the U-shaped rods are all in contact with the inner wall of the slide groove.

[0009] Preferably, the limiting holes are all coaxial with the second pedal rod, and the door-shaped frame is normally open at the bottom in the long direction.

[0010] Preferably, a direction block is provided on the top of the side surface of the door-shaped frame, and the limiting groove is located in the direction block on the door-shaped frame.

[0011] Preferably, the round rods all pass through the limiting grooves, and the round rods are respectively located at the center of the springs.

[0012] Preferably, the limiting blocks all pass through the limiting slots, and the sliding slots are located between a pair of first pedal rods.

[0013] Preferably, the handles are located at the center of one side of the door-shaped frame, and the hooks and the hanging rings are located on the same horizontal line.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the present invention, by using the U-shaped rod, the second pedal rod, the limit groove, the limit block, the round rod, the spring and the pull ring in coordination, the U-shaped rod can be raised when in use to reach a suitable height for use, and the U-shaped rod can be retracted during transportation, thereby reducing the storage space occupied during transportation;

[0016] 2. In the utility model, by using the handle, the hook and the hanging ring in coordination, when carrying, the hook connects the door-shaped frame into a whole, so that it is more convenient to carry, and there will be no rotation, thus meeting people's use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the position relationship between the slide slot and the door frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the door-shaped frame of the utility model;

[0021] Figure 4 For the utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0022] Serial numbers in the figure: 1, door frame; 11, first pedal rod; 12, slide groove; 13, U-shaped rod; 14, second pedal rod; 15, connecting plate; 16, rotating shaft; 17, supporting plate; 18, limiting groove; 19, limiting block; 111, round rod; 112, spring; 113, pull ring; 114, first connecting rod; 115, second connecting rod; 116, limiting hole; 2, handle; 21, hook; 22, hanging ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1: This embodiment provides a portable safety engineering ladder, see Figure 1-4 Specifically, it includes a pair of door-shaped frames 1, a plurality of pairs of first pedal rods 11 are fixedly arranged in the pair of door-shaped frames 1, a slide groove 12 is opened at the top of the door-shaped frames 1, a U-shaped rod 13 is slidably arranged in the slide groove 12, a plurality of second pedal rods 14 are fixedly arranged in the middle of the U-shaped rod 13, a connecting plate 15 is fixedly arranged at the top of the U-shaped rod 13, a rotating shaft 16 is rotatably arranged between the pair of connecting plates 15, a pair of support plates 17 are hingedly arranged at the bottom ends of the pair of door-shaped frames 1, a pair of limiting grooves 18 are opened in the door-shaped frames 1, and a sliding groove 18 is provided in the limiting groove 18. A limit block 19 is provided, a round rod 111 is fixedly provided on one side of the limit block 19, a spring 112 is fixedly provided in the limit groove 18, the other end of the spring 112 is fixedly connected to one side of the limit block 19, a pull ring 113 is fixedly provided on the other end of the round rod 111, a pair of first connecting rods 114 are rotatably provided on one door-shaped frame 1, a pair of second connecting rods 115 are rotatably provided on the other end of the door-shaped frame 1, the first connecting rods 114 are hinged to the second connecting rods 115, and a plurality of limit holes 116 are provided on both sides of the pair of U-shaped rods 13;

[0025] The limiting holes 116 are distributed in a linear row, the U-shaped rods 13 are all in contact with the inner wall of the slide groove 12, the limiting holes 116 are all coaxial with the second pedal rod 14, the door-shaped frame 1 is open at the bottom in the long direction, and direction blocks are provided on the top of the side of the door-shaped frame 1. The limiting grooves 18 are located in the direction blocks on the door-shaped frame 1, the round rods 111 all penetrate the limiting grooves 18, the round rods 111 are respectively located at the center of the springs 112, the limiting blocks 19 all penetrate the limiting grooves 18, and the slide groove 12 is located between a pair of first pedal rods 11.

[0026] In the specific implementation process, Figure 1 and Figure 3As shown, pull the pull ring 113, the pull ring 113 drives the limit block 19 to move into the limit groove 18 through the round rod 111, and the compression spring 112 is pulled to pull the U-shaped rod 13, so that the U-shaped rod 13 is elongated from the slide groove 12, so that the engineering ladder can be raised according to needs. When it is pulled to the required length, release the pull ring 113, the spring 112 pushes the limit block 19 to move out of the limit groove 18, and inserts it into the limit hole 116 on the U-shaped rod 13, so that the U-shaped rod 13 is limited so that it cannot slide in the slide groove 12, and the door frame 1 is erected, and the support plate 17 is rotated so that the bottom of the support plate 17 contacts the ground, and the door frame 1 is supported, and the door frame 1 is separated to both sides, and the door frame 1 drives the U-shaped rod 13 to separate to both sides, and the U-shaped rod 13 drives the rotating shaft 16 through the connecting plate 15. Rotate to make the door frame 1 tilt and separate around the rotating shaft 16, and the door frame 1 drives the first connecting rod 114 and the second connecting rod 115 to rotate, and the first connecting rod 114 and the second connecting rod 115 are horizontal, so that the U-shaped rod 13, the door frame 1, the first connecting rod 114 and the second connecting rod 115 form a triangle, making it more stable. During transportation, pull the pull ring 113 to retract the U-shaped rod 13 into the door frame 1, and merge the door frame 1 together in parallel to reduce the volume it occupies. Through the coordinated use of the U-shaped rod 13, the second foot pedal 14, the limit groove 18, the limit block 19, the round rod 111, the spring 112 and the pull ring 113, the U-shaped rod 13 can be raised during use to reach a suitable use height, and the U-shaped rod 13 can be retracted during transportation.

[0027] Embodiment 2: In embodiment 1, there is still a problem that it is not very convenient to carry. Therefore, based on embodiment 1, this embodiment further includes:

[0028] A handle 2 is fixedly provided on one side of the door-shaped frame 1, a hook 21 is rotatably provided on the other side of one door-shaped frame 1, and a hanging ring 22 is fixedly provided on the other side of the other door-shaped frame 1. The handle 2 is located at the center of one side of the door-shaped frame 1, and the hook 21 and the hanging ring 22 are located on the same horizontal line.

[0029] In the specific implementation process, Figure 1 and Figure 2 As shown, when transporting, it can be lifted by the handle 2, and the hook 21 on the combined door-shaped frame 1 can be hung on the hanging ring 22, so that the door-shaped frame 1 cannot rotate around the rotating shaft 16, which is more convenient for transportation. Through the coordinated use of the handle 2, the hook 21 and the hanging ring 22, when carrying, the hook 21 connects the door-shaped frame 1 into a whole, so that it is more convenient to carry and will not rotate.

[0030] Specifically, the working principle and operation method of the utility model are as follows:

[0031] Step 1: When in use, pull the pull ring 113, and the pull ring 113 drives the limit block 19 to move into the limit groove 18 through the round rod 111 to compress the spring 112, pull the U-shaped rod 13, and make the U-shaped rod 13 elongate from the slide groove 12, so that the engineering ladder can be raised as needed. When it is pulled to the required length, release the pull ring 113, and the spring 112 pushes the limit block 19 to move out of the limit groove 18 and insert it into the limit hole 116 on the U-shaped rod 13, so as to limit the U-shaped rod 13 so that it cannot slide in the slide groove 12, stand up the door frame 1, rotate the support plate 17, make the bottom of the support plate 17 contact with the ground, and support the door frame 1. The door-shaped frame 1 is separated to both sides, and the door-shaped frame 1 drives the U-shaped rod 13 to separate to both sides. The U-shaped rod 13 drives the rotating shaft 16 to rotate through the connecting plate 15, so that the door-shaped frame 1 is tilted and separated around the rotating shaft 16. The door-shaped frame 1 drives the first connecting rod 114 and the second connecting rod 115 to rotate. The first connecting rod 114 and the second connecting rod 115 are horizontal, so that the U-shaped rod 13, the door-shaped frame 1, the first connecting rod 114 and the second connecting rod 115 form a triangle, making it more stable. When transporting, pull the pull ring 113 to retract the U-shaped rod 13 into the door-shaped frame 1, and merge the door-shaped frames 1 together to be parallel, thereby reducing the volume occupied by them;

[0032] Step 2: When transporting, the door-shaped frame 1 can be lifted up by the handle 2, and the hook 21 on the combined door-shaped frame 1 is hung on the hanging ring 22, so that the door-shaped frame 1 cannot rotate around the rotating shaft 16, which is more convenient for transportation;

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable safety engineering ladder, comprising a pair of door-shaped frames (1), characterized in that: A plurality of pairs of first pedal rods (11) are fixedly arranged in a pair of the door-shaped frames (1), a slide groove (12) is provided at the top of the door-shaped frames (1), a U-shaped rod (13) is slidably arranged in the slide groove (12), a plurality of second pedal rods (14) are fixedly arranged in the middle of the U-shaped rod (13), a connecting plate (15) is fixedly arranged at the top of the U-shaped rod (13), a rotating shaft (16) is rotatably arranged between the pair of connecting plates (15), a pair of support plates (17) are hingedly arranged at the bottom ends of the pair of the door-shaped frames (1), a pair of limiting grooves (18) are provided in the door-shaped frames (1), and limiting blocks (14) are slidably arranged in the limiting grooves (18) 19), a round rod (111) is fixedly provided on one side of the limit block (19), a spring (112) is fixedly provided in the limit groove (18), the other end of the spring (112) is fixedly connected to one side of the limit block (19), a pull ring (113) is fixedly provided on the other end of the round rod (111), a pair of first connecting rods (114) is rotatably provided on one end of the door-shaped frame (1), and a pair of second connecting rods (115) is rotatably provided on the other end of the door-shaped frame (1), the first connecting rods (114) are hinged to the second connecting rods (115), and a plurality of limiting holes (116) are provided on both sides of the pair of U-shaped rods (13).

2. A portable safety engineering ladder according to claim 1, characterized in that: A handle (2) is fixedly provided on one side of the door-shaped frame (1), a hook (21) is rotatably provided on the other side of one of the door-shaped frames (1), and a hanging ring (22) is fixedly provided on the other side of the other end of the door-shaped frame (1).

3. A portable safety engineering ladder according to claim 1, characterized in that: The limiting holes (116) are distributed in a linear array, and the U-shaped rods (13) are all in contact with the inner wall of the slide groove (12).

4. A portable safety engineering ladder according to claim 1, characterized in that: The limiting holes (116) are all located on the same axis as the second pedal rod (14), and the door-shaped frame (1) is always open at the bottom in the long direction.

5. The portable safety engineering ladder according to claim 1, characterized in that: The top of the side of the door-shaped frame (1) is provided with a direction block, and the limiting groove (18) is located in the direction block on the door-shaped frame (1).

6. A portable safety engineering ladder according to claim 1, characterized in that: The round rods (111) all pass through the limiting grooves (18), and the round rods (111) are respectively located at the center of the springs (112).

7. A portable safety engineering ladder according to claim 1, characterized in that: The limiting blocks (19) all penetrate the limiting grooves (18), and the sliding grooves (12) are located between a pair of first pedal rods (11).

8. The portable safety engineering ladder according to claim 2, characterized in that: The handles (2) are located at the center of one side of the door-shaped frame (1), and the hooks (21) and the hanging rings (22) are located on the same horizontal line.

Images