A ladder assembly with a freestanding kick stop

Abstract

The utility model relates to a kind of ladder assembly structure with independent anti-jumping hook.The existing rear foot iron is with anti-jumping hook, and it affects assembly convenience.The utility model includes body, the body includes two pairs of triangular frame and the lower base across in the bottom between the front edge of triangular frame, the triangular frame bottom is equipped with auxiliary wheel seat, the corresponding end portion between the triangular frame and lower base is equipped with angle iron piece and anti-jumping hook independently, so as to angle iron piece and anti-jumping hook independent disassembly.Set angle iron piece and anti-jumping hook independently, it is through independent assembly anti-jumping hook to improve installation accuracy, it is also through independent assembly angle iron piece to reduce installation accuracy, again can effectively improve raw material utilization efficiency, reduce cost, improve use experience.

Description

Technical Field

[0001] This utility model relates to the field of escalators, specifically to an escalator step assembly structure with an independent anti-jump hook. Background Technology

[0002] The existing ladder includes a body, a footboard, and a kick plate. The footboard is mounted on the top surface of the body, and the kick plate is mounted on the front wall of the body. The body includes two opposing tripods, a lower base spanning between the tripods, auxiliary wheel seats with rollers located at the bottom of the tripods, and a rear angle iron for connecting the tripods and the lower base. The rear angle iron includes a connecting part for securing the tripods and the lower base, and an anti-jump part for preventing the ladder from deviating from a preset position. During installation, the connecting part is both fixed to the lower base by an anti-floating stop pin and fixed to the tripods by fasteners, ensuring that the anti-jump part is accurately positioned and restricting the ladder from deviating from the preset movement path, thus ensuring the safe operation of the ladder. This assembly structure has the following defects:

[0003] 1. The steps need to move along the preset path and also be limited by the anti-jump part when they deviate from the preset path. This puts high precision requirements on the assembly position of the anti-jump part. The existing rear angle iron requires adjusting the relative position between the connecting part and the lower base to adjust the position of the anti-jump part, which is troublesome to adjust.

[0004] 2. The connecting part is fixed to the lower base by anti-floating stop pin. Due to the long length of the anti-floating stop pin, the end of the anti-floating stop pin is prone to displacement due to axis deflection, which can easily interfere with adjacent parts and affect the safety of the ladder operation. Manual calibration is required, which increases the assembly workload and affects the assembly efficiency.

[0005] 3. Since the rear angle iron includes the connecting part and the anti-jump part, and is machined as a whole, the required raw material plate size is large, which can easily increase costs due to a lot of leftover material after cutting, and affect the user experience. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a ladder assembly structure with independent anti-jump hooks. It features independent angle iron parts and anti-jump hooks, which improves installation accuracy by independently assembling the anti-jump hooks and reduces installation accuracy by independently assembling the angle iron parts. This also effectively improves the utilization efficiency of raw materials, reduces costs, and enhances the user experience.

[0007] This utility model is achieved through the following method: a ladder assembly structure with independent anti-jump hooks, comprising a main body, the main body including two opposing triangular frames and a lower base spanning the bottom of the front edge of the triangular frames, the bottom of the triangular frames being provided with auxiliary wheel seats, and independently arranged angle iron parts and anti-jump hooks between the corresponding ends of the triangular frames and the lower base, so that the angle iron parts and anti-jump hooks can be independently assembled and disassembled. The original integrated rear angle iron in the assembly structure is improved to have separate angle iron parts and anti-jump hooks. The angle iron parts are used to fix the triangular frames and the lower base, and the anti-jump hooks are used to limit the jumping of the ladder steps during operation, preventing the ladder steps from deviating from the preset path. This effectively simplifies the assembly difficulty of the anti-jump hooks, improves assembly accuracy by independently assembling the anti-jump hooks, and eliminates the need to adjust the installation accuracy of the anti-jump hooks using angle iron parts. Ordinary fasteners replace the anti-floating stop pins in the original assembly structure, thus eliminating the need for calibration operations, simplifying the assembly steps, and improving the utilization efficiency of raw materials by independently processing the smaller angle iron parts and anti-jump hooks, thereby reducing material waste, lowering costs, and improving the user experience.

[0008] Preferably, the angle iron is equipped with a positioning buckle, and the lower base has a positioning hole. The angle iron is vertically positioned by the positioning buckle, which is horizontally inserted into the positioning hole, to limit the angle iron from vertically shifting towards the auxiliary wheel seat. The positioning buckle is horizontally inserted into the positioning hole and limits the vertical shift of the angle iron, ensuring that the tripod and the lower base are accurately fixed together by the angle iron. Since the angle iron and the anti-jump hook are set independently, the installation accuracy of the anti-jump hook and the installation accuracy of the angle iron do not affect each other, thereby improving assembly efficiency by reducing the installation accuracy requirements of the angle iron.

[0009] Preferably, the angle iron is L-shaped, including a transverse part that is fixed to the rear wall of the lower base and a longitudinal part that is fixed to the inner wall of the tripod. The positioning buckle is formed by bending the bottom edge of the transverse part forward. The L-shaped angle iron is used to ensure that the tripod and the lower base are perpendicularly fixed to each other. The connection reliability is improved by increasing the contact area, preventing relative offset and deflection between the tripod and the lower base, and ensuring that the body has good structural strength.

[0010] Preferably, the transverse portion has at least two main threaded holes, and the lower base has a main through hole corresponding to the main threaded holes. The transverse portion and the lower base are fitted together and locked together by fasteners passing through the main through holes and screwed into the main threaded holes. The main threaded holes are distributed on the transverse portion, which not only improves the connection reliability between the transverse portion and the lower base, but also prevents offset and deflection.

[0011] Preferably, the main screw hole is located on the side of the transverse portion close to the longitudinal portion, and the positioning buckle is located on the side of the transverse portion away from the longitudinal portion. By increasing the distance between the positioning buckle and the longitudinal portion, the lever arm is increased, thereby improving the anti-deflection effect of the diagonal iron piece.

[0012] Preferably, the longitudinal section has at least one secondary screw hole, and the tripod has a secondary through hole corresponding to the secondary screw hole. The longitudinal section is attached to the tripod and locked to the secondary screw hole by fasteners passing through the secondary through hole. The longitudinal section is fixed to the tripod by fasteners, ensuring a firm connection between the two, and thus ensuring a firm connection between the tripod and the lower base.

[0013] Preferably, the angle iron and the anti-jump hook are both formed by integral bending of plate-shaped raw materials, which is convenient for independent processing, reduces the processing difficulty by reducing the structural features on each component, and improves the utilization efficiency of raw materials by reducing the size of the raw materials required for each component, thereby reducing waste and lowering production costs.

[0014] Preferably, the anti-jump hook is located below the angle iron component. The anti-jump hook includes a connecting part and a hook body. The connecting part is attached to and welded to the bottom of the inner wall of the tripod. Positioning the anti-jump hook below the angle iron component ensures that the hook body is exposed below the bottom edge of the tripod, facilitating its engagement with the limiting component and effectively preventing the steps from deviating from the preset path. It also ensures that both the anti-jump hook and the angle iron component have independent installation space, ensuring that their assembly and disassembly do not interfere with each other.

[0015] Preferably, auxiliary wheel seats are installed on both sides of the bottom of the tripod. Mounting holes with connecting bolts are provided at the bottom of the tripod. The connecting bolts pass through the anti-jump hook and the mounting holes in sequence before connecting to the auxiliary wheel seats, so that both the auxiliary wheel axle and the anti-jump hook are fixed to the bottom of the tripod. The auxiliary wheel seats are used to install rollers. Both the auxiliary wheel seats and the anti-jump hook are located at the bottom end of the tripod, and they are fixed together by a shared connecting bolt. This simplifies the structure, effectively reduces the number of mounting holes, and thus improves the structural strength of the bottom end of the tripod.

[0016] Preferably, the auxiliary wheel seat includes a connecting plate and a reducing column. A threaded hole matching the connecting bolt is formed in the center of the end face of the reducing column. The connecting plate is attached to the tripod and the lower base and connected by fasteners. The connecting plate is L-shaped, serving both to position the reducing column by fitting snugly against the main body, ensuring the reducing column axis is always perpendicular to the tripod, and to secure the tripod and lower base. The connecting bolt passes through the anti-jump hook, the mounting hole, and is threaded into the threaded hole for locking, ensuring that both the anti-jump hook and the auxiliary wheel seat are securely mounted on the tripod.

[0017] The beneficial effects of this utility model are as follows: The original integrated rear angle iron in the assembly structure is improved into an angle iron part and an anti-jump hook with a split structure. The angle iron part is used to fix the tripod and the lower base, and the anti-jump hook is used to prevent the steps from deviating from the preset path. This not only effectively simplifies the assembly difficulty of the anti-jump hook, but also improves the assembly accuracy by assembling the anti-jump hook independently. It also eliminates the need to adjust the installation accuracy of the anti-jump hook by using the angle iron part. The anti-floating stop pin in the original assembly structure is replaced by ordinary fasteners, thus eliminating the need for calibration operations and simplifying the assembly steps. Furthermore, the use of independently processed angle iron parts and anti-jump hooks with smaller dimensions improves the utilization efficiency of raw materials, thereby reducing material waste, lowering costs, and improving the user experience. Attached Figure Description

[0018] Figure 1 This is a partial structural diagram of the ladder.

[0019] Figure 2 This is a partial structural diagram of the body.

[0020] Figure 3 This is a schematic diagram of the anti-jump hook structure;

[0021] Figure 4 This is a structural schematic diagram of the angle iron component;

[0022] Figure 5 This is a schematic diagram of the auxiliary wheel seat;

[0023] In the diagram: 1. Tripod, 2. Lower base, 3. Auxiliary wheel seat, 4. Angle iron piece, 5. Anti-jump hook, 6. Positioning buckle, 7. Positioning hole, 8. Horizontal part, 9. Longitudinal part, 10. Main screw hole, 11. Main through hole, 12. Secondary screw hole, 13. Secondary through hole, 14. Hook body, 15. Mounting hole, 16. Connecting plate, 17. Variable diameter column, 18. Connecting part, 19. Screw hole. Detailed Implementation

[0024] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 and 2The ladder assembly structure shown consists of a main body, which includes two opposing tripods 1 and a lower base 2 spanning the bottom of the front edge of the tripods 1. The bottom of the tripods 1 is provided with an auxiliary wheel seat 3. An angle iron piece 4 and an anti-jump hook 5 are provided between the corresponding ends of the tripods 1 and the lower base 2, so that the angle iron piece 4 and the anti-jump hook 5 can be disassembled and assembled independently. The original integrated rear angle iron in the assembly structure has been improved to have a split structure angle iron 4 and anti-jump hook 5. Angle iron 4 is used to fix the tripod 1 and the lower base 2, and anti-jump hook 5 is used to prevent the steps from deviating from the preset path. This not only simplifies the assembly difficulty of anti-jump hook 5, but also improves the assembly accuracy by assembling anti-jump hook 5 independently. It also eliminates the need to adjust the installation accuracy of anti-jump hook 5 with angle iron 4. The anti-floating stop pin in the original assembly structure is replaced with ordinary fasteners, thus eliminating the need for calibration operations and simplifying the assembly steps. Furthermore, the independent processing of smaller angle iron 4 and anti-jump hook 5 improves the utilization efficiency of raw materials, thereby reducing material waste, lowering costs, and improving the user experience.

[0026] In practice, both the angle iron 4 and the anti-jump hook 5 are formed integrally from sheet material through bending. The angle iron 4 and the anti-jump hook 5 are manufactured independently and assembled onto the tripod 1. Compared to the integral structure in the original assembly structure, setting the rear angle iron as an independent angle iron 4 and anti-jump hook 5 (e.g.) Figure 3 and 4 As shown, this design effectively reduces the size of raw materials required for processing each component, thereby improving the utilization efficiency of plate-shaped raw materials, effectively reducing waste materials, and lowering processing costs. It also allows for independent assembly of angle iron 4 and anti-jump hook 5, ensuring that the installation accuracy does not affect each other, improving assembly efficiency, and enhancing product quality.

[0027] In actual operation, the angle iron 4 is L-shaped, including a horizontal part 8 that is fixed to the rear wall of the lower base 2 and a vertical part 9 that is fixed to the inner wall of the tripod 1. The positioning buckle 6 is formed by bending the bottom edge of the horizontal part 8 forward. The angle iron 4 is provided with the positioning buckle 6, and the lower base 2 has a positioning hole 7. The angle iron 4 is vertically positioned by the positioning buckle 6 inserted horizontally into the positioning hole 7, so as to limit the angle iron 4 from vertically shifting towards the auxiliary wheel seat 3. During installation, the horizontal part 8 is attached to the side wall of the lower base 2, and the positioning buckle 6 is horizontally inserted into the positioning hole 7, so that the post screw hole is aligned with the main through hole 11. The fastener passes through the main through hole 11 and is screwed and locked with the main screw hole 10, which not only ensures that the positioning buckle 6 is reliably locked in the positioning hole 7, but also uses the contact between the positioning buckle 6 and the periphery of the positioning hole 7 to limit the vertical shift of the angle iron 4. The longitudinal portion 9 fits against the inner wall of the tripod 1, aligning the secondary screw hole 12 and the secondary through hole 13. Fasteners pass through the secondary through hole 13 and lock into the secondary screw hole 12, ensuring a secure connection between the angle iron 4 and the tripod 1. Since the angle iron 4 is fixed to the lower base 2 and the tripod 1 respectively via the transverse portion 8 and the longitudinal portion 9, the relative positions of the lower base 2 and the tripod 1 are fixed, effectively improving the structural strength of the main body.

[0028] In actual operation, the transverse portion 8 is provided with at least two main threaded holes 10, and the lower base 2 is provided with main through holes 11 corresponding to the main threaded holes 10. The transverse portion 8 and the lower base 2 are attached together and locked to the main threaded holes 10 by fasteners passing through the main through holes 11. The two main threaded holes 10 are distributed to effectively improve the connection strength, improve the anti-offset performance, and also improve the anti-deflection performance. The main threaded holes 10 are located on the side of the transverse portion 8 near the longitudinal portion 9, and the positioning buckle 6 is located on the side of the transverse portion 8 away from the longitudinal portion 9. The periphery of the main threaded hole 10 extends in the direction away from the main through hole 11 to increase the axial depth of the main threaded hole 10, which facilitates the opening of threads on the inner wall of the main threaded hole 10, and also improves the reliability of the threaded connection by increasing the area of ​​the threaded connection. The number of main threaded holes 10 can also be three, four, etc., all of which should be considered as specific embodiments of this utility model.

[0029] In actual operation, the longitudinal part 9 is provided with at least one secondary screw hole 12, and the tripod 1 is provided with a secondary through hole 13 corresponding to the secondary screw hole 19. The longitudinal part 9 and the tripod 1 are attached to each other and locked to the secondary screw hole 12 by fasteners passing through the secondary through hole 13. The number of secondary screw holes 12 can also be two, three, etc., all of which should be considered as specific embodiments of this utility model. The periphery of the secondary screw hole 12 extends in the direction away from the secondary through hole 13 to increase the axial depth of the secondary screw hole 12, which facilitates the opening of threads on the inner wall of the secondary screw hole 12, and also improves the screw connection reliability by increasing the area of ​​the screw connection region.

[0030] In actual operation, the anti-jump hook 5 is located below the angle iron 4. The anti-jump hook 5 includes a connecting part 18 and a hook body 14. The connecting part 18 is attached to the bottom of the inner wall of the tripod 1 and welded for fixation. A through hole is provided on the connecting part 18 of the anti-jump hook 5. During installation, firstly, the anti-jump hook 5 is placed on the preset position on the tripod 1. At this time, the hook body 14 of the anti-jump hook 5 is accurately positioned, and the through hole is aligned with the mounting hole 15. Then, welding is performed along the periphery of the connecting part 18 to fix the periphery of the connecting part 18 to the tripod 1, preventing the hook body 14 from shifting. Finally, the connecting bolt passes through the through hole and the mounting hole 15 and is screwed into the screw hole 19 provided on the auxiliary wheel seat 3 for locking, which plays a double fixing role for the anti-jump hook 5 and effectively improves the reliability of the fixation.

[0031] In actual operation, auxiliary wheel seats 3 are respectively installed on both sides of the bottom of the tripod 1. The bottom of the tripod 1 has mounting holes 15 with connecting bolts. The connecting bolts pass through the anti-jump hooks 5 and the mounting holes 15 in sequence and are connected to the auxiliary wheel seats 3, so that the auxiliary wheel shaft and the anti-jump hooks 5 are both fixed to the bottom of the tripod 1. The auxiliary wheel seats 3 and the anti-jump hooks 5 are respectively set on both sides of the bottom end of the tripod 1 to ensure that they do not interfere with each other, and the assembly structure can be simplified by sharing the connecting bolts.

[0032] In actual operation, the auxiliary wheel seat 3 includes a connecting plate 16 and a variable diameter column 17 (e.g., Figure 5 As shown, a threaded hole 19 matching the connecting bolt is opened in the middle of the end face of the variable diameter column 17. The connecting plate 16 is attached to the tripod 1 and the lower base 2 and connected by fasteners. The connecting plate 16 is L-shaped and is used to span between the rear wall of the lower base 2 and the outer wall of the tripod 1. Since the rear wall of the lower base 2 and the outer wall of the tripod 1 have different orientations, it not only fixes the tripod and the lower base 2, but also positions and maintains the posture of the variable diameter column 17, ensuring that the axial direction of the variable diameter column 17 is always perpendicular to the outer wall of the tripod.

Claims

1. A ladder assembly structure with independent anti-jump hooks, comprising a body, the body including two opposing tripods (1) and a lower base (2) spanning the bottom of the front edge of the tripods (1), characterized in that, Angle iron pieces (4) and anti-jump hooks (5) are provided at the corresponding ends of the tripod (1) and the lower base (2) so that the angle iron pieces (4) and anti-jump hooks (5) can be disassembled and assembled independently. The angle iron pieces (4) are provided with positioning buckles (6). The angle iron pieces (4) are L-shaped and include a transverse part (8) that is fitted and fixed to the rear wall of the lower base (2) and a longitudinal part (9) that is fitted and fixed to the inner wall of the tripod (1). The positioning buckles (6) are formed by bending the bottom edge of the transverse part (8) forward.

2. The ladder assembly structure with independent anti-jump hook according to claim 1, characterized in that, The lower base (2) has a positioning hole (7), and the angle iron (4) is vertically positioned by the positioning buckle (6) inserted horizontally into the positioning hole (7) to limit the angle iron (4) from vertically shifting and approaching the auxiliary wheel seat (3).

3. The ladder assembly structure with independent anti-jump hook according to claim 2, characterized in that, The transverse part (8) is provided with at least two main screw holes (10), and the lower base (2) is provided with a main through hole (11) corresponding to the main screw hole (10). The transverse part (8) and the lower base (2) are attached to each other and locked together by fasteners passing through the main through hole (11) and screwed into the main screw hole (10).

4. The ladder assembly structure with independent anti-jump hook according to claim 3, characterized in that, The main screw hole (10) is located on the side of the transverse part (8) near the longitudinal part (9), and the positioning buckle (6) is located on the side of the transverse part (8) away from the longitudinal part (9).

5. A ladder assembly structure with an independent anti-jump hook according to claim 2, characterized in that, The longitudinal part (9) is provided with at least one secondary screw hole (12), and the tripod (1) is provided with a secondary through hole (13) corresponding to the secondary screw hole. The longitudinal part (9) and the tripod (1) are attached to each other and locked together by fasteners passing through the secondary through hole (13) and the secondary screw hole (12).

6. The ladder assembly structure with independent anti-jump hook according to claim 1, characterized in that, Both the angle iron (4) and the anti-jump hook (5) are formed by integral bending of plate-shaped raw materials.

7. A ladder assembly structure with an independent anti-jump hook according to any one of claims 1-6, characterized in that, The anti-jump hook (5) is located below the angle iron piece (4). The anti-jump hook (5) includes a connecting part (18) and a hook body (14). The connecting part (18) is attached to the bottom of the inner wall of the tripod (1) and welded and fixed.

8. A ladder assembly structure with an independent anti-jump hook according to claim 7, characterized in that, The tripod (1) has auxiliary wheel seats (3) installed on both sides of its bottom. The tripod (1) has mounting holes (15) with connecting bolts at its bottom. The connecting bolts pass through the anti-jump hook (5) and the mounting holes (15) in sequence and are connected to the auxiliary wheel seats (3) so that the auxiliary wheel shaft and the anti-jump hook (5) are both fixed to the bottom of the tripod (1).

9. A ladder assembly structure with an independent anti-jump hook according to claim 8, characterized in that, The auxiliary wheel seat (3) includes a connecting plate (16) and a variable diameter column (17). A threaded hole (19) matching the connecting bolt is opened in the middle of the end face of the variable diameter column (17). The connecting plate (16) is attached to the tripod (1) and the lower base (2) and connected by fasteners.

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