High-low plate flat type crawling ladder structure
By designing an inverted L-shaped connecting plate, an inclined plate and a rotation adjustment mechanism, the stability problem of the ladder when loading and unloading goods on a high-low platform vehicle is solved, and effective support and stability adjustment of the ladder under different height conditions are achieved.
Patent Information
- Application Number
- CN202422634872.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing ladders have poor stability and are easy to move when loading and unloading goods on high-low-bed vehicles, and lack effective positioning devices.
A high-low flat ladder structure is designed, which includes an inverted L-shaped connecting plate, an inclined plate, a connecting sleeve, a rotating shaft and a fastening bolt. By adjusting the angle and length of the connecting rod, the support and height adjustment of the ladder are achieved to enhance stability.
The stability and adaptability of the ladder when loading and unloading goods on high- and low-bed vehicles are improved, ensuring effective support of the ladder under different height conditions.
Smart Images
Figure CN223410769U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ladder structures, in particular to a high and low plate flat type ladder structure. Background Art
[0002] Tractor-type semi-trailers are very convenient for transporting goods and are widely used today. When loading and unloading goods, operators need to use ladders to go up and down the high plate.
[0003] When in use, one end of the existing ladder is placed on the high board and the other end is placed on the low board. Due to the lack of an auxiliary support structure, the stability during loading and unloading is poor. Moreover, when climbing, the ladder is easy to move because there is no positioning device at the end of the ladder, making it unsuitable for loading and unloading.
[0004] Therefore, a high-low plate flat ladder structure is proposed to address the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a high-low flat ladder structure, including a ladder body, an inverted L-shaped connecting plate is provided on the top of the ladder body, an inclined plate is provided under the ladder body, grooves are respectively provided on both sides of the upper side of the ladder body, connecting sleeves are respectively provided inside the two grooves, the interior of the connecting sleeves is connected to the connecting rod by an adjusting bolt, the tops of the two connecting rods are connected by a rotating shaft, one side of the rotating shaft passes through the side wall of the ladder body, and extends to the outside of the ladder body to be connected to the rotating disk, and the rotating disk is fixed to the ladder body by a fastening bolt.
[0006] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0007] The utility model is provided with a rotating disk, a fastening bolt, a bolt hole, and a bolt groove. The rotating disk drives the rotating shaft to rotate, and the rotating shaft drives the connecting rod to rotate, thereby rotating the connecting rod out of the groove, adjusting the angle of the connecting rod, and inserting the fastening bolt into the bolt groove through the bolt hole to position the angle of the connecting rod, so as to facilitate the support of the ladder body.
[0008] The utility model provides a connecting rod, an adjusting bolt and a connecting sleeve, and the adjusting bolt is loosened to adjust the length of the connecting rod in the connecting sleeve, so that the height of the ladder body can be adjusted according to the height of the step board.
[0009] The utility model provides a ladder body, an inverted L-shaped connecting plate and an inclined plate. The inverted L-shaped connecting plate can be hung in the groove of the high plate. The inclined plate can be easily contacted with the surface of the low plate, thereby improving the stability of the ladder when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural diagram of the utility model;
[0011] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0012] Figure 3 It is a side view of the utility model;
[0013] The reference numerals and names in the figures are as follows:
[0014] 1. Ladder body; 101. Groove; 102. Bolt slot; 2. Connecting sleeve; 3. Support foot; 4. Connecting rod; 5. Adjusting bolt; 6. Rotating shaft; 7. Inverted L-shaped connecting plate; 8. Rotating plate; 801. Bolt hole; 9. Fastening bolt; 10. Tilt plate. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0016] As attached Figure 1-3 As shown, the high and low flat ladder structure provided by the utility model includes a ladder body 1, an inverted L-shaped connecting plate 7 is provided on the top of the ladder body 1, an inclined plate 10 is provided under the ladder body 1, grooves 101 are respectively provided on both sides of the upper side of the ladder body 1, and connecting sleeves 2 are respectively provided inside the two grooves 101. The interior of the connecting sleeve 2 is connected to the connecting rod 4 through an adjusting bolt 5, and the tops of the two connecting rods 4 are connected by a rotating shaft 6. One side of the rotating shaft 6 passes through the side wall of the ladder body 1 and extends to the outside of the ladder body 1 to be connected to the rotating disk 8, and the rotating disk 8 is fixed to the ladder body 1 by a fastening bolt 9.
[0017] Specifically, a supporting foot 3 is provided below the connecting sleeve 2 .
[0018] Specifically, a plurality of bolt holes 801 are opened circumferentially on the rotating disk 8, and a plurality of bolt grooves 102 are opened circumferentially on the ladder body 1 at positions corresponding to the bolt holes 801. There are two fastening bolts 9, and the two fastening bolts 9 respectively pass through the bolt holes 801 on both sides of the rotating disk 8 and are inserted into the bolt grooves 102 opened on the ladder body 1.
[0019] Working principle: When in use, insert the inverted L-shaped connecting plate 7 above the ladder body 1 into the groove provided on the high plate, and the inclined plate 10 below the ladder body 1 contacts the surface of the low plate, rotate the rotating disk 8, and the rotating disk 8 drives the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives the connecting rod 4 to rotate, and then the connecting rod 4 is rotated out of the groove 101, and the angle of the connecting rod 4 is adjusted. After adjustment, the fastening bolt 9 is inserted into the bolt groove 102 through the bolt hole 801 to position the angle of the connecting rod 4, and then the adjusting bolt 5 is loosened to adjust the length of the connecting rod 4 in the connecting sleeve 2, so as to facilitate the adjustment of the height of the ladder body 1 according to the height of the high and low plates, and thus facilitate the support of the ladder body 1.
[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
Claims
1. A high-low flat ladder structure, comprising a ladder body (1), characterized in that: An inverted L-shaped connecting plate (7) is provided on the top of the ladder body (1), and an inclined plate (10) is provided below the ladder body (1). Grooves (101) are respectively provided on both sides of the upper side of the ladder body (1), and connecting sleeves (2) are respectively provided inside the two grooves (101). The interior of the connecting sleeves (2) is connected to the connecting rod (4) through an adjusting bolt (5). The upper sides of the two connecting rods (4) are connected through a rotating shaft (6). One side of the rotating shaft (6) passes through the side wall of the ladder body (1) and extends to the outside of the ladder body (1) to be connected to the rotating disk (8). The rotating disk (8) is fixed to the ladder body (1) through a fastening bolt (9).
2. The high-low flat ladder structure according to claim 1, characterized in that: A supporting foot (3) is provided below the connecting sleeve (2).
3. The high-low flat ladder structure according to claim 1, characterized in that: The rotating disk (8) is provided with a plurality of bolt holes (801) along the circumferential direction, and the ladder body (1) at positions corresponding to the bolt holes (801) is provided with a plurality of bolt slots (102) along the circumferential direction.
4. The high-low flat ladder structure according to claim 3, characterized in that: There are two fastening bolts (9), which respectively pass through the bolt holes (801) on both sides of the rotating disk (8) and are inserted into the bolt slots (102) provided on the ladder body (1).