Assembled climbing ladder

Abstract

The utility model discloses an assembly type climbing ladder, which relates to the technical field of climbing ladders, and comprises a bottom frame, a side frame, a ladder frame and a handrail frame, the lower end of the bottom frame is fixedly provided with a roller through a screw, and the lower end of the side frame is respectively welded with a first corner joint block and a second corner joint block; the lower ends of the side frames penetrate through the first corner connecting blocks and the second corner connecting blocks through screws to be fixedly installed on the bottom frame, connecting pipes are fixedly installed on the opposite sides of the side frames through screws, and pedals are fixedly installed on the opposite sides of the side frames through screws. By the adoption of the structure, the bottom frame and the side frames are combined and installed through the screws, then the two ends of the ladder frame are combined and installed with the bottom frame and the side frames through the screws respectively, then the handrail frame is combined and installed with the side frames and the bottom frame through the screws respectively, and finally the pedals are installed between the side frames. Therefore, the climbing ladder can be conveniently and quickly assembled and used, and meanwhile, the climbing ladder is also convenient to transport and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of climbing ladders, in particular to an assembled climbing ladder. Background Art

[0002] A climbing ladder is a special equipment used for climbing operations, mainly used in construction operations, warehousing and logistics and other fields. A climbing ladder is a device that helps users climb to a specific height to obtain goods or climb to a certain height. Common climbing ladders include scaffolding, step ladders, climbing vehicles, etc.

[0003] A Chinese patent with announcement number CN220151250U discloses a climbing ladder, which includes: a main frame, which includes a bottom frame and a first locking member; a carrier frame connected to the bottom frame, which includes a polygonal connecting rod bearing frame and a second locking member, wherein the second locking member is arranged on a movable connecting rod of the polygonal connecting rod bearing frame, or the second locking member is connected to a movable connecting rod of the polygonal connecting rod bearing frame.

[0004] The above-mentioned climbing ladders in the prior art still have some shortcomings in actual use and operation. For example, the overall structure of the traditional climbing ladder is generally in the form of overall welding. Although this assembly form has good firmness, it is difficult to construct and inconvenient to transport. Secondly, the traditional climbing ladder sometimes needs to carry tools when performing some operations, and the tools are placed on the pedals of the climbing ladder. During implementation, the staff needs to bend down to get the tools, which is very inconvenient. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide an assembled climbing ladder to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] The assembled climbing ladder comprises a bottom frame, a side frame, a ladder frame and a handrail frame, the lower end of the bottom frame is fixedly installed with a roller by screws, the lower end of the side frame is respectively welded with a first angle block and a second angle block, the lower end of the side frame is screwed through the first angle block and is fixedly installed with the second angle block and the bottom frame, the opposite side of the side frame is fixedly installed with a connecting pipe by screws, and the opposite side of the side frame is fixedly installed with a pedal by screws, the lower end of the ladder frame and the left end of the ladder frame are both welded with a first connecting plate, the first connecting plate at the lower end of the ladder frame is fixedly installed with the bottom frame by screws, the first connecting plate at the left end of the ladder frame is fixedly installed with the side frame by screws, the lower end of the handrail frame and the left end of the handrail frame are both welded with a second connecting plate, the second connecting plate at the lower end of the handrail frame is fixedly installed with the ladder frame by screws, the second connecting plate at the left end of the handrail frame is fixedly installed with the side frame by screws, and a placing mechanism is provided on the outer side of the connecting pipe on the opposite side of the upper end of the side frame;

[0008] The cam is connected with the second stud at one end and the second stud is connected with the second stud at the other end.

[0009] As an optimal technical solution, a rectangular plate is symmetrically welded at the lower end of the bottom frame, and the rectangular plate is fixed with a wheel frame by screws. The wheel axle of the roller is rotatably connected to the inner side of the wheel frame, and the rectangular plate can be conveniently installed with the wheel frame of the roller.

[0010] As an optimal technical solution, the outer side of the box rack is symmetrically fixedly connected with a connecting shaft, and the box rack is rotatably connected to the inner side of the mounting shaft seat through the connecting shaft. The connecting shaft can facilitate the rotation of the box rack on the mounting shaft seat.

[0011] As an optimal technical solution, the outer side of the hand-screw sleeve is rotatably connected with a limiting ring, and the limiting ring and the connecting chain are fixedly installed at one end away from the mounting shaft seat. Through the limiting ring, one end of the connecting chain can be conveniently connected to the hand-screw sleeve for rotation.

[0012] As a preferred technical solution, a first through hole is provided on the inner side of the connecting rod on the opposite side of the upper end of the side frame, and a second through hole is provided on the inner side of the fixing plate. The end of the second stud away from the mounting shaft seat can move through the first through hole and the second through hole. Through the first through hole and the second through hole, the second stud and the locking nut can be conveniently installed at the connecting pipe.

[0013] As a preferred technical solution, a washer is provided between the locking nut and the fixing plate, and one end of the second stud movably passes through the washer. The stability of the connection between the second stud and the locking nut can be improved through the washer.

[0014] As a preferred technical solution, a mounting shell is fixedly connected to one side of the fixing plate close to the locking nut, and a limiting groove is provided on the side of the fixing shell away from the fixing plate. A protrusion is slidably connected to the inner side of the limiting groove, and the convex part of the protrusion and the upper end of the hook are fixedly installed. The protrusion is slidably installed in the limiting groove on the mounting shell and the position of the hook can be conveniently adjusted by connecting the protrusion and the hook.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] First, the bottom frame and the side frame are assembled and installed by screws, and then the two ends of the ladder frame are assembled and installed with the bottom frame and the side frame respectively by screws, and then the handrail frame is assembled and installed with the side frame and the bottom frame respectively by screws, and finally the pedals are installed between the side frames, so that the climbing ladder can be quickly assembled and used, and it is also convenient for transportation and use;

[0017] Secondly, after the placement box frame on the mounting shaft seat is rotated horizontally, the placement box frame is fixed by the hand-screwed sleeve on the connecting chain and the first stud thread, so that the placement box frame can be limited and fixed, which is convenient for users to place tools when using the ladder, and the hook on the fixing plate can be used to hang some tools, so that users do not need to bend over repeatedly to pick up and put tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the roller installation of the utility model;

[0020] Figure 3 It is a schematic diagram of the placement mechanism structure of the utility model;

[0021] Figure 4 The utility model Figure 3 Enlarged view of point A in the middle.

[0022] 1. bottom frame; 2. first corner joint; 3. second corner joint; 4. side frame; 5. roller; 501. wheel frame; 502. rectangular plate; 6. ladder frame; 7. first connecting plate; 8. handrail frame; 9. second connecting plate; 10. pedal; 11. placement mechanism; 111. mounting shaft seat; 112. placement box frame; 113. first stud; 114. hand-screw sleeve; 115. connecting chain; 116. second stud; 117. fixing plate; 118. locking nut; 119. hook; 12. connecting pipe; 13. connecting shaft; 14. first through hole; 15. second through hole; 16. washer; 17. limiting ring; 18. bump; 19. mounting shell; 20. limiting groove. DETAILED DESCRIPTION

[0023] refer to Figures 1 to 4 The assembled climbing ladder described in this embodiment includes a bottom frame 1, a side frame 4, a ladder frame 6 and a handrail frame 8. The lower end of the bottom frame 1 is fixedly installed with a roller 5 by screws, the lower end of the side frame 4 is respectively welded with a first corner block 2 and a second corner block 3, the lower end of the side frame 4 is fixedly installed with the first corner block 2 and the second corner block 3 and the bottom frame 1 by screws, the opposite side of the side frame 4 is fixedly installed with a connecting pipe 12 by screws, the opposite side of the side frame 4 is fixedly installed with a pedal 10 by screws, the lower end of the ladder frame 6 and the ladder frame 6 The left end is welded with a first connecting plate 7, the first connecting plate 7 at the lower end of the ladder frame 6 is fixedly installed with the bottom frame 1 by screws, the first connecting plate 7 at the left end of the ladder frame 6 is fixedly installed with the side frame 4 by screws, the lower end of the handrail frame 8 and the left end of the handrail frame 8 are welded with a second connecting plate 9, the second connecting plate 9 at the lower end of the handrail frame 8 is fixedly installed with the ladder frame 6 by screws, the second connecting plate 9 at the left end of the handrail frame 8 is fixedly installed with the side frame 4 by screws, and a placing mechanism 11 is provided on the outer side of the connecting pipe 12 on the opposite side of the upper end of the side frame 4;

[0024] The placement mechanism 11 includes an installation shaft seat 111 and a fixing plate 117, one side of the installation shaft seat 111 is symmetrically fixedly connected with a second stud 116, one end of the second stud 116 away from the installation shaft seat 111 is movably penetrated through the connecting pipe 12 at the upper end of the side frame 4 and the fixing plate 117, and is threadedly connected with a locking nut 118, and a hook 119 is slidably connected to the side of the fixing plate 117 close to the locking nut 118, and the side of the installation shaft seat 111 away from the second stud 116 is rotatably connected to the placement box frame 112, the outer side of the upper end of the installation shaft seat 111 is fixedly connected with a connecting chain 115, and the other end of the connecting chain 115 is rotatably connected with a hand-screwed sleeve 114, and the end of the placement box frame 112 away from the installation shaft seat 111 A first stud 113 is symmetrically fixedly connected to the outside, and a hand-screwed sleeve 114 and an end of the first stud 113 away from the placement box frame 112 are threadedly installed. After the second stud 116 on the mounting shaft seat 111 passes through the connecting pipe 12 and the fixing plate 117 and is installed with the locking nut 118, the placement box frame 112 on the mounting shaft seat 111 is rotated horizontally, and then the hand-screwed sleeve 114 on the connecting chain 115 and the first stud 113 are threadedly fixed, so that the placement box frame 112 can be limited and fixed, which is convenient for the user to place tools when using the ladder, and the hook 119 on the fixing plate 117 can be used to hang some tools, so that the user does not need to repeatedly bend over to pick up and put tools.

[0025] refer to Figure 2 A rectangular plate 502 is symmetrically welded at the lower end of the bottom frame 1, and a wheel frame 501 is fixedly installed on the rectangular plate 502 by screws. The axle of the roller 5 is rotatably connected to the inner side of the wheel frame 501, and the rectangular plate 502 on the bottom frame 1 is installed with screws and the wheel frame 501 of the roller 5.

[0026] refer to Figure 3 The outer side of the box frame 112 is symmetrically fixedly connected with a connecting shaft 13, and the box frame 112 is rotatably connected to the inner side of the mounting shaft seat 111 through the connecting shaft 13. The box frame 112 can be easily rotated on the mounting shaft seat 111 by using the connecting shaft 13 on the box frame 112.

[0027] refer to Figure 3 The outer side of the hand-screw sleeve 114 is rotatably connected to the limiting ring 17, and the limiting ring 17 and the connecting chain 115 are fixedly installed at one end away from the mounting shaft seat 111. The limiting ring 17 on the hand-screw sleeve 114 can facilitate the rotation of the connecting chain 115 and the connection with the hand-screw sleeve 114.

[0028] refer to Figure 3A first through hole 14 is formed on the inner side of the connecting rod on the opposite side of the upper end of the side frame 4, a second through hole 15 is formed on the inner side of the fixing plate 117, and the end of the second stud 116 away from the mounting shaft seat 111 is movable through the first through hole 14 and the second through hole 15. By using the second stud 116 to penetrate the first through hole 14 and the second through hole 15, the second stud 116 can be conveniently used to cooperate with the locking nut 118 to install the fixing plate 117, the mounting shaft seat 111 and the connecting pipe 12.

[0029] refer to Figure 3 A washer 16 is provided between the locking nut 118 and the fixing plate 117, and one end of the second stud 116 movably penetrates the washer 16. By using one end of the second stud 116 to penetrate the washer 16, the stability of the connection between the second stud 116 and the locking nut 118 can be easily improved.

[0030] refer to Figure 4 A mounting shell 19 is fixedly connected to one side of the fixing plate 117 close to the locking nut 118, and a limiting groove 20 is provided on the side of the mounting shell 19 away from the fixing plate 117. A protrusion 18 is slidably connected to the inner side of the limiting groove 20. The convex part of the protrusion 18 and the upper end of the hook 119 are fixedly installed. The limiting groove 20 on the mounting shell 19 can facilitate the limited sliding of the protrusion 18 at the mounting shell 19, thereby facilitating the sliding adjustment of the hook 119 on the convex part of the protrusion 18.

[0031] Principle and advantages of use: First, the bottom frame 1 and the side frame 4 are assembled and installed by screws, and then the two ends of the ladder frame 6 are assembled and installed with the bottom frame 1 and the side frame 4 respectively by screws, and then the handrail frame 8 is assembled and installed with the side frame 4 and the bottom frame 1 respectively by screws, and finally the pedal 10 and the roller 5 at the lower end of the bottom frame 1 are installed between the side frames 4;

[0032] During use, by passing the second stud 116 on the mounting shaft seat 111 through the connecting pipe 12 and the fixing plate 117 and installing the locking nut 118, the placement box frame 112 on the mounting shaft seat 111 is rotated horizontally, and then the hand-screwed sleeve 114 on the connecting chain 115 and the first stud 113 are threadedly fixed, so that the placement box frame 112 can be fixed in a limited position, which makes it convenient for the user to place tools when using the ladder, and the hook 119 on the fixing plate 117 can be used to hang some tools.

Claims

1. An assembled climbing ladder, comprising a bottom frame (1), a side frame (4), a ladder frame (6) and a handrail frame (8), characterized in that: The lower end of the bottom frame (1) is fixedly mounted with a roller (5) by means of screws, the lower end of the side frame (4) is respectively welded with a first corner block (2) and a second corner block (3), the lower end of the side frame (4) is fixedly mounted with the second corner block (3) and the bottom frame (1) by means of screws penetrating the first corner block (2), the opposite side of the side frame (4) is fixedly mounted with a connecting pipe (12) by means of screws, the opposite side of the side frame (4) is fixedly mounted with a pedal (10) by means of screws, the lower end of the ladder frame (6) and the left end of the ladder frame (6) are both welded with a first connecting plate (7), the ladder frame (6) ) is fixedly mounted on the bottom frame (1) by screws, the first connecting plate (7) on the left end of the ladder frame (6) is fixedly mounted on the side frame (4) by screws, the lower end of the handrail frame (8) and the left end of the handrail frame (8) are both welded with a second connecting plate (9), the second connecting plate (9) on the lower end of the handrail frame (8) is fixedly mounted on the ladder frame (6) by screws, the second connecting plate (9) on the left end of the handrail frame (8) is fixedly mounted on the side frame (4) by screws, and a placing mechanism (11) is provided on the outer side of the connecting pipe (12) on the opposite side of the upper end of the side frame (4); The placement mechanism (11) comprises an installation shaft seat (111) and a fixing plate (117), one side of the installation shaft seat (111) is symmetrically fixedly connected with a second stud (116), one end of the second stud (116) away from the installation shaft seat (111) is movably penetrated through the connecting pipe (12) at the upper end of the side frame (4) and the fixing plate (117) and is threadedly connected with a locking nut (118), and a hook (119) is slidably connected to the side of the fixing plate (117) close to the locking nut (118), and the installation shaft seat (111) is fixedly connected with a second stud (116) symmetrically fixedly connected with a second stud (116), one end of the second stud (116) away from the installation shaft seat (111) is movably penetrated through the connecting pipe (12) at the upper end of the side frame (4) and the fixing plate (117) and is threadedly connected with a locking nut (118), and the fixing plate (117) is slidably connected with a hook (119), and the installation shaft seat (111) is fixedly connected with a second stud (116) and a second stud (116 ... 11) is rotatably connected to a box frame (112) at a side away from the second stud (116); a connecting chain (115) is fixedly connected to the outer side of the upper end of the mounting shaft seat (111); the other end of the connecting chain (115) is rotatably connected to a hand-screw sleeve (114); the outer side of one end of the box frame (112) away from the mounting shaft seat (111) is symmetrically fixedly connected to a first stud (113); the hand-screw sleeve (114) and the first stud (113) are threadedly installed at one end away from the box frame (112).

2. The assembled climbing ladder according to claim 1, characterized in that: A rectangular plate (502) is symmetrically welded to the lower end of the bottom frame (1), a wheel frame (501) is fixedly mounted on the rectangular plate (502) by screws, and the axle of the roller (5) is rotatably connected to the inner side of the wheel frame (501).

3. The assembled climbing ladder according to claim 1, characterized in that: The outer side of the box placement frame (112) is symmetrically fixedly connected with a connecting shaft (13), and the box placement frame (112) is rotatably connected to the inner side of the mounting shaft seat (111) via the connecting shaft (13).

4. The assembled climbing ladder according to claim 1, characterized in that: The outer side of the hand-screwed sleeve (114) is rotatably connected to a limit ring (17), and the limit ring (17) and the connecting chain (115) are fixedly installed at one end away from the mounting shaft seat (111).

5. The assembled climbing ladder according to claim 1, characterized in that: A first through hole (14) is provided on the inner side of the connecting rod on the opposite side of the upper end of the side frame (4), a second through hole (15) is provided on the inner side of the fixing plate (117), and the end of the second stud (116) away from the mounting shaft seat (111) is movable through the first through hole (14) and the second through hole (15).

6. The assembled climbing ladder according to claim 1, characterized in that: A washer (16) is provided between the locking nut (118) and the fixing plate (117), and one end of the second stud (116) movably passes through the washer (16).

7. The assembled climbing ladder according to claim 1, characterized in that: A mounting shell (19) is fixedly connected to one side of the fixing plate (117) close to the locking nut (118), and a limiting groove (20) is provided on one side of the fixing plate (117) away from the fixing plate (117). A protrusion (18) is slidably connected to the inner side of the limiting groove (20), and the convex portion of the protrusion (18) is fixedly mounted to the upper end of the hook (119).

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