Stably-supported crawling ladder
By introducing a support frame and multiple sets of support spikes into the ladder, the problem of slippage at the bottom of the herringbone folding ladder is solved, which improves safety and provides suspension and adjustment functions to achieve a more stable user experience.
Patent Information
- Application Number
- CN202420382615.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing herringbone folding ladders tend to slip at the bottom when used, resulting in less safety.
A ladder structure including the main ladder bracket, the support frame rotating shaft, the rotating support rod, the main support sleeve, the secondary support sleeve and multiple sets of support spikes is designed. Through the fixing and adjustment of these components, the ladder is not easy to slide during use. It also provides adjustment function of the suspension board.
It effectively prevents slipping at the bottom of the ladder, improves the safety of use, and allows easy replacement of broken support spikes when needed, enhancing the reliability of the equipment.
Smart Images
Figure CN222296117U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ladder equipment, in particular to a ladder with stable support. Background Art
[0002] Ladders can be used to climb and are divided into different types according to different structures, such as extension ladders, folding ladders and herringbone ladders, etc. Among them, the folding ladder is also called a herringbone ladder or an A-type ladder. It is a common ladder that is widely used in our daily life and can be easily carried and used;
[0003] However, the existing herringbone folding ladder cannot be stably supported during use, and the bottom may slip during use, which may cause safety problems for operators, and the safety during use is low. Utility Model Content
[0004] The purpose of the utility model is to provide a ladder with stable support in order to solve the problem that the existing herringbone folding ladder cannot be stably supported during use and the bottom may slip during use, which may cause safety problems for operators and low safety during use.
[0005] The yoke is provided with a plurality of support rods, each of which is provided with a plurality of support rods, and the support rods are provided with a plurality of support rods, each of which is provided with a plurality of support rods, and the support rods are provided with a plurality of support rods.
[0006] As a further solution of the utility model: a ladder pedal is rotatably connected to the inner side below the ladder main bracket, one end of the ladder pedal is fixedly connected to a pedal shaft, one end of the pedal shaft is fixedly connected to a shaft connecting arm, an outer end of the shaft connecting arm is rotatably connected to an outer rotating connecting strip, an outer end of the outer rotating connecting strip is rotatably connected to an adjusting handle rod, and an inner end of the shaft connecting arm is rotatably connected to an inner rotating connecting strip.
[0007] As a further solution of the utility model: the number of the ladder main bracket, support frame rotating shaft, rotating support rod, main support sleeve, auxiliary support sleeve, main bracket slot, auxiliary bracket slot, adjustment rod slide groove, main bracket through hole and support rod through hole are each arranged in two groups, the number of the main sleeve fixed through holes and auxiliary sleeve fixed through holes are each arranged in four groups, every two groups of main sleeve fixed through holes are adapted to one group of main bracket through holes, and every two groups of auxiliary sleeve fixed through holes are adapted to one group of support rod through holes.
[0008] As a further solution of the utility model: the ladder pedals, pedal shafts and shaft connecting arms are provided in multiple groups and every two groups of pedal shafts and shaft connecting arms are adapted to one group of ladder pedals, the outer rotating connecting strips, adjusting handle rods and inner rotating connecting strips are provided in two groups, the outer rotating connecting strips and the inner rotating connecting strips of the shaft connecting arms are movably arranged inside the ladder main bracket, and the pedal shaft rotates and passes through the ladder main bracket.
[0009] As a further solution of the utility model: the main support spikes and the auxiliary support spikes are arranged in multiple groups and are evenly fixed below the main support sleeve and the auxiliary support sleeve, and the main support sleeve, the auxiliary support sleeve, the main support spikes and the auxiliary support spikes are all made of alloy steel, and the ladder suspension plate is an L-shaped structure.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. In the utility model, two sets of main support sleeves and auxiliary support sleeves are respectively inserted on the outer sides below the two sets of main ladder brackets and the rotating support rods, and fixing bolts are respectively inserted through the main sleeve fixing through holes and the inside of the main bracket through holes and the auxiliary sleeve fixing through holes and the inside of the support rod through holes to conveniently fix them. When the main ladder bracket and the rotating support rod are deployed for support and use, multiple sets of main support spikes and auxiliary support spikes can play a good supporting and anti-slip effect, preventing the problem of the bottom slipping and unstable support when the ladder is in use, which is safer, and the main support spikes and auxiliary support spikes can be conveniently disassembled and replaced when they are broken in the later stage;
[0012] 2. In the utility model, the main ladder bracket and the rotating support rod can be unfolded for use through the adjusting mechanism of the intermediate rotating connection, and the main ladder bracket and the rotating support rod can be tightened, and the ladder hanging plate can be inserted into the upper position with hanging conditions for hanging use. When hanging, the two sets of adjustment handle rods are pushed and pulled to simultaneously drive the multiple sets of ladder pedals to rotate around the pedal rotating shaft through the multiple sets of outer rotating connecting strips and the inner rotating connecting strips, so that the angles between the multiple sets of ladder pedals and the main ladder bracket can be conveniently adjusted for convenient use. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of a stable supporting ladder described in the utility model;
[0014] Figure 2 It is a structural schematic diagram of a main support sleeve in a stable supporting ladder described in the utility model;
[0015] Figure 3 It is a structural schematic diagram of a secondary support sleeve in a stable supporting ladder described in the utility model;
[0016] Figure 4 It is a structural schematic diagram of a main ladder support in a stable ladder described in the utility model;
[0017] Figure 5 It is a structural schematic diagram of a rotating support rod in a stable supporting ladder described in the utility model;
[0018] Figure 6 It is a schematic diagram of the back structure of a stable supporting ladder described in the utility model;
[0019] Figure 7 It is a structural schematic diagram of a ladder step in a ladder with a stable support described in the utility model;
[0020] Figure 8 It is an enlarged structural schematic diagram of point A in a stably supported ladder described in the utility model.
[0021] In the figure: 1. main support of ladder; 2. support frame shaft; 3. rotating support rod; 4. main support sleeve; 5. auxiliary support sleeve; 6. main support spike; 7. main support slot; 8. main sleeve fixing hole; 9. auxiliary support spike; 10. auxiliary support slot; 11. auxiliary sleeve fixing hole; 12. adjustment rod slide; 13. main support hole; 14. support rod hole; 15. upper fixing frame; 16. ladder hanging plate; 17. ladder pedal; 18. pedal shaft; 19. shaft connecting arm; 20. outer rotating connecting strip; 21. adjustment handle rod; 22. inner rotating connecting strip. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.
[0024] Reference Figures 1 to 6 In the embodiment of the utility model, a stable supporting ladder comprises: a main ladder support 1, a support frame rotating shaft 2 is rotatably connected to the upper side of the main ladder support 1, a rotating support rod 3 is fixedly connected to one end of the supporting frame rotating shaft 2, a main support sleeve 4 is sleeved on the outer side of the lower side of the main ladder support 1, a secondary support sleeve 5 is sleeved on the outer side of the lower side of the rotating support rod 3, a main support spike 6 is fixedly connected to the lower side of the main support sleeve 4, a main support slot 7 is opened inside the upper part of the main support sleeve 4, and a main sleeve fixing through hole 8 is opened on the side of the main support sleeve 4 A secondary support spike 9 is fixedly connected to the bottom of the secondary support sleeve 5, a secondary support slot 10 is opened inside the top of the secondary support sleeve 5, a secondary sleeve fixing through hole 11 is opened on the side of the secondary support sleeve 5, an adjusting rod slide groove 12 is opened above one end of the side of the ladder main bracket 1, a main bracket through hole 13 is opened below one end of the side of the ladder main bracket 1, a support rod through hole 14 is opened at one end below the rotating support rod 3, an upper fixing frame 15 is fixedly connected to one end of the top of the ladder main bracket 1, and a ladder hanging plate 16 is fixedly connected to one end of the upper fixing frame 15.
[0025] Reference Figure 7 and Figure 8A ladder pedal 17 is rotatably connected to the inner side of the lower part of the ladder main bracket 1, and one end of the ladder pedal 17 is fixedly connected to a pedal shaft 18, and one end of the pedal shaft 18 is fixedly connected to a shaft connecting arm 19, and one end of the outer side of the shaft connecting arm 19 is rotatably connected to an outer rotating connecting strip 20, and one end of the outer rotating connecting strip 20 is rotatably connected to an adjusting handle rod 21, and one end of the inner side of the shaft connecting arm 19 is rotatably connected to an inner rotating connecting strip 22. The ladder pedals 17, the pedal shaft 18 and the shaft connecting arm 19 are all provided in multiple groups, and every two groups of pedal shafts 18 and shaft connecting arms 19 are adapted to one group of ladder pedals 17, and the outer rotating connecting strip 20, the adjusting handle rod 21 and the inner rotating connecting strip 22 are all provided in two groups. The outer rotating connecting strip 20 and the inner rotating connecting strip 22 of the shaft connecting arm 19 are movably arranged inside the ladder main bracket 1, and the pedal shaft 18 rotates through the ladder main bracket 1.
[0026] Reference Figures 1 to 6 , the main ladder bracket 1, the support frame shaft 2, the rotating support rod 3, the main support sleeve 4, the auxiliary support sleeve 5, the main bracket slot 7, the auxiliary bracket slot 10, the adjusting rod slide groove 12, the main bracket through hole 13 and the support rod through hole 14 are each provided with two groups, the main sleeve fixed through holes 8 and the auxiliary sleeve fixed through holes 11 are each provided with four groups, every two groups of main sleeve fixed through holes 8 are adapted to one group of main bracket through holes 13, every two groups of auxiliary sleeve fixed through holes 11 are adapted to one group of support rod through holes 14, the main support spikes 6 and the auxiliary support spikes 9 are each provided with multiple groups and are evenly fixed under the main support sleeve 4 and the auxiliary support sleeve 5, and the main support sleeve 4, the auxiliary support sleeve 5, the main support spikes 6 and the auxiliary support spikes 9 are all made of alloy steel, and the ladder hanging plate 16 is an L-shaped structure.
[0027] The working principle of the utility model is that when in use, the main ladder support 1 and the rotating support rod 3 can be unfolded and used through the adjustment mechanism connected by the intermediate rotation connection, and the main ladder support 1 and the rotating support rod 3 can also be tightened, and the ladder hanging plate 16 is inserted into the position with hanging conditions above for hanging use, and when hanging, the two sets of adjustment handle bars 21 are pushed and pulled through the multiple sets of outer rotating connecting strips 20 and the inner rotating connecting strips 22 to simultaneously drive the multiple sets of ladder pedals 17 to rotate around the pedal rotating shaft 18, so that the angles between the multiple sets of ladder pedals 17 and the main ladder support 1 can be conveniently adjusted for convenient use, and the two sets of adjustment handle bars 21 are respectively Two groups of main support sleeves 4 and auxiliary support sleeves 5 are inserted on the outer side below the main ladder bracket 1 and the rotating support rod 3, and fixing bolts are respectively inserted into the main sleeve fixing through holes 8 and the main bracket through holes 13 and the auxiliary sleeve fixing through holes 11 and the support rod through holes 14 to conveniently fix them. When the main ladder bracket 1 and the rotating support rod 3 are unfolded for support use, the multiple groups of main support spikes 6 and auxiliary support spikes 9 can play a good supporting and anti-slip effect, preventing the bottom of the ladder from slipping and unstable support when in use, and the main support spikes 6 and the auxiliary support spikes 9 can be conveniently disassembled and replaced when they are broken in the later stage.
[0028] What is described above 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 ladder with stable support, characterized in that: include: A main ladder support (1), the upper side of the main ladder support (1) is rotatably connected to a support frame rotating shaft (2), one end of the support frame rotating shaft (2) is fixedly connected to a rotating support rod (3), a main support sleeve (4) is sleeved on the outer side of the lower side of the main ladder support (1), a secondary support sleeve (5) is sleeved on the outer side of the lower side of the rotating support rod (3), a main support spike (6) is fixedly connected to the lower side of the main support sleeve (4), a main support slot (7) is opened inside the upper side of the main support sleeve (4), a main sleeve fixing through hole (8) is opened on the side of the main support sleeve (4), and a main sleeve fixing through hole (8) is fixedly connected to the lower side of the secondary support sleeve (5). A secondary support spike (9) is provided, a secondary support slot (10) is provided inside the upper part of the secondary support sleeve (5), a secondary sleeve fixing through hole (11) is provided on the side of the secondary support sleeve (5), an adjustment rod slide groove (12) is provided on the upper part of one end of the side of the ladder main support (1), a main support through hole (13) is provided on the lower part of one end of the side of the ladder main support (1), a support rod through hole (14) is provided on the lower end of the rotating support rod (3), an upper fixing frame (15) is fixedly connected to one end of the upper fixing frame (15), and a ladder hanging plate (16) is fixedly connected to one end of the upper fixing frame (15).
2. A ladder with stable support according to claim 1, characterized in that: A ladder pedal (17) is rotatably connected to the inner side of the lower side of the ladder main bracket (1); one end of the ladder pedal (17) is fixedly connected to a pedal rotating shaft (18); one end of the pedal rotating shaft (18) is fixedly connected to a rotating shaft connecting arm (19); an outer end of the rotating shaft connecting arm (19) is rotatably connected to an outer rotating connecting strip (20); an outer end of the outer rotating connecting strip (20) is rotatably connected to an adjusting handle bar (21); and an inner end of the rotating shaft connecting arm (19) is rotatably connected to an inner rotating connecting strip (22).
3. A stable supporting ladder according to claim 1, characterized in that: The number of the main ladder support (1), the support frame rotating shaft (2), the rotating support rod (3), the main support sleeve (4), the auxiliary support sleeve (5), the main support slot (7), the auxiliary support slot (10), the adjustment rod slide groove (12), the main support through hole (13) and the support rod through hole (14) are all arranged in two groups, and the number of the main sleeve fixing through holes (8) and the auxiliary sleeve fixing through holes (11) are all arranged in four groups, and every two groups of the main sleeve fixing through holes (8) are matched with one group of the main bracket through holes (13), and every two groups of the auxiliary sleeve fixing through holes (11) are matched with one group of the support rod through holes (14).
4. A stably supported ladder according to claim 2, characterized in that: The number of the ladder pedals (17), the pedal shafts (18) and the shaft connecting arms (19) are all arranged in multiple groups, and every two groups of the pedal shafts (18) and the shaft connecting arms (19) are adapted to one group of ladder pedals (17). The number of the outer rotating connecting strips (20), the adjusting handle rods (21) and the inner rotating connecting strips (22) are all arranged in two groups. The outer rotating connecting strips (20) and the inner rotating connecting strips (22) of the shaft connecting arms (19) are movably arranged inside the ladder main bracket (1), and the pedal shaft (18) rotates and passes through the ladder main bracket (1).
5. A ladder with stable support according to claim 1, characterized in that: The main support spikes (6) and the auxiliary support spikes (9) are arranged in multiple groups and are evenly fixed below the main support sleeve (4) and the auxiliary support sleeve (5), and the main support sleeve (4), the auxiliary support sleeve (5), the main support spikes (6) and the auxiliary support spikes (9) are all made of alloy steel, and the ladder hanging plate (16) is an L-shaped structure.