Multifunctional safety engineering ladder

Abstract

The utility model discloses a multifunctional safety engineering ladder, and relates to the technical field of engineering ladders. The herringbone ladder comprises a herringbone ladder body, two shaft rods are rotationally arranged on the herringbone ladder body, two fixing rods are arranged on the shaft rods, a storage box is hinged to one fixing rod, a protruding rod is arranged on the storage box, a groove and a locking piece are arranged on the other fixing rod, and the protruding rod is matched with the groove in an inserted mode. The convex rod is locked or unlocked through the locking piece, and a driving piece for driving the two shaft rods to synchronously and reversely rotate is arranged on the herringbone ladder. When the herringbone ladder is used, a worker climbs up the herringbone ladder body to work, a fence protection structure is formed through the fixing rods and the storage box, so that the worker is prevented from falling off due to unstable gravity center, tools and parts can be placed in the storage box, and the tools and the parts are prevented from being damaged due to direct loss on the ground; and meanwhile, nearby personnel can be prevented from being injured, so that the practicability is higher.

Description

Technical Field

[0001] The present application relates to the technical field of engineering ladders, and in particular to a multifunctional safety engineering ladder. Background Art

[0002] As the name suggests, an engineering ladder is a ladder used for engineering. It has a variety of types, multiple features and uses. Modern industrial engineering ladders are no longer limited to a single form. Common ones include herringbone ladders, telescopic ladders, folding ladders, etc. In the existing technology, workers usually carry tools and parts to climb up the engineering ladder to work. The existing herringbone ladders usually do not have protective structures and storage structures. When workers climb up the herringbone ladder to work, they may fall due to unstable center of gravity. At the same time, there is nowhere to put tools and parts. If they are thrown directly on the ground, it is not only easy to cause damage to tools and parts, but also may cause injuries to nearby people. Therefore, a multifunctional safety engineering ladder is proposed. Utility Model Content

[0003] The purpose of this application is to solve the technical problem that existing stepladders usually do not have protective structures and storage structures. When workers climb up stepladders to work, they may fall due to unstable center of gravity. At the same time, there is nowhere to put tools and parts. If they are thrown directly on the ground, it is not only easy to cause damage to tools and parts, but also may cause injuries to nearby people. This application provides a multifunctional safety engineering ladder.

[0004] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0005] A multifunctional safety engineering ladder comprises a stepladder body, two shafts being rotatably provided on the stepladder body, two fixing rods being provided on the shafts, one of the fixing rods being hingedly connected to a storage box, the storage box being provided with a protruding rod, and the other fixing rod being provided with a groove and a locking piece, the protruding rod being plugged into and matched with the groove, the protruding rod being locked or unlocked by the locking piece, and a driving piece being provided on the stepladder for driving the two shafts to rotate synchronously in opposite directions.

[0006] Furthermore, the locking member includes a locking rod slidably arranged on the fixed rod, a return spring is arranged between the locking rod and the fixed rod, and a wedge block is provided at the free end of the locking rod for contact and overlap with the protruding rod.

[0007] Furthermore, the driving member includes a driving block slidingly arranged on the stepladder body, a screw with a thread passing through the driving block is rotatably arranged on the stepladder body, two driving racks are symmetrically arranged on the driving block, and a driving gear meshing with the driving rack is arranged on the shaft.

[0008] Furthermore, a limiting rod is hinged on the fixing rod, and a connecting rod is hinged between two adjacent limiting rods.

[0009] Furthermore, a guide rod and a lifting member are provided on the main body of the stepladder, a storage box is slidably provided on the guide rod, and the storage box is driven to slide by the lifting member.

[0010] Furthermore, the lifting member includes a rotating rod and a worm both rotatably arranged on the stepladder body, a worm wheel and a rope winding wheel are arranged on the rotating rod, the worm wheel is engaged with the worm, a pull rope is wound around the rope winding wheel, and the free end of the pull rope is connected to the storage box.

[0011] Furthermore, the storage box is detachably arranged on the guide rod, and the free end of the pull rope is detachably connected to the storage box.

[0012] Furthermore, the guide rods are provided with sliding grooves on opposite sides, and two sliders are slidingly provided on the storage box, which are plugged into and slided with the sliding grooves. The storage box is rotatably provided with forward and reverse screw rods, and the two sliders are respectively threadedly engaged with the forward and reverse threaded sections of the forward and reverse screw rods.

[0013] Furthermore, a fixing ring is provided on the storage box, and a hook is provided at the free end of the pull rope to be hooked with the fixing ring.

[0014] The beneficial effects of this application are as follows:

[0015] When the present application is in use, workers climb up the stepladder body to perform work, and a fence protection structure is formed by the fixed rods and the storage box to prevent workers from falling due to unstable center of gravity. Tools and parts can be placed in the storage box to prevent tools and parts from being damaged by being dropped directly on the ground, and at the same time, injuries to nearby personnel can be avoided, making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the structure of this application;

[0017] Figure 2 It is a three-dimensional diagram of the structure of part of this application;

[0018] Figure 3 This application Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This application Figure 2 Enlarged view of point B in the middle;

[0020] Figure 5 This is a three-dimensional diagram of the guide rod structure of the present application;

[0021] Figure 6 It is a three-dimensional diagram of another part of the structure of this application;

[0022] Figure 7 This application Figure 6 Enlarged view of point C in the middle;

[0023] Figure 8 This application Figure 6 Enlarged view of point D in the middle;

[0024] Figure 9 This application Figure 6 Enlarged view of point E in the middle.

[0025] Figure numerals: 1. stepladder body; 2. shaft; 3. fixing rod; 4. storage box; 5. protruding rod; 6. groove; 7. locking rod; 8. return spring; 9. wedge block; 10. driving block; 11. screw; 12. driving rack; 13. driving gear; 14. limiting rod; 15. connecting rod; 16. guide rod; 17. storage box; 18. rotating rod; 19. worm; 20. worm wheel; 21. rope pulley; 22. pull rope; 23. slide groove; 24. slider; 25. forward and reverse screw rods; 26. fixing ring; 27. hook. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0027] like Figure 1-Figure 4 As shown, a multifunctional safety engineering ladder proposed in one embodiment of the present application includes a herringbone ladder body 1, two shafts 2 are rotatably provided on the herringbone ladder body 1, the shafts 2 are in a horizontal direction, the two shafts 2 are spaced apart, two fixing rods 3 are provided on the shaft 2, the fixing rods 3 are fixed on the shaft 2 and the two are vertically distributed, the two fixing rods 3 are spaced apart, one of the fixing rods 3 is hingedly connected to a storage box 4, the storage box 4 is provided with a convex rod 5, the convex rod 5 is fixed on the storage box 4, the other fixing rod 3 is provided with a groove 6 and a locking piece, the convex rod 5 is plugged into the groove 6, and the convex rod 5 is locked or unlocked by the locking piece, and the herringbone ladder is provided with a driving piece for driving the two shafts 2 to rotate synchronously in opposite directions;

[0028] When the staff member climbs up the ladder body 1, during this process, the protruding rod 5 is first unlocked by the locking piece, the storage box 4 is driven to rotate and drive the protruding rod 5 to exit the groove 6, and then the storage box 4 is driven to rotate and drive the protruding rod 5 to enter the groove 6, and the protruding rod 5 is locked by the locking piece. When the staff member is working, the protruding rod 5 is unlocked by the locking piece, the storage box 4 is driven to rotate and drive the protruding rod 5 to exit the groove 6, and then the storage box 4 is driven to rotate and drive the protruding rod 5 to enter the groove 6, and the protruding rod 5 is locked by the locking piece. The fixing rod 3 and the storage box 4 form a fence protection structure, thereby preventing the staff from falling due to unstable center of gravity. Tools and parts can be placed in the storage box 4, thereby preventing the tools and parts from being damaged by being dropped directly on the ground, and at the same time preventing nearby people from being injured. On the contrary, after use, the protruding rod 5 is unlocked by the locking member, driving the storage box 4 to rotate and drive the protruding rod 5 to exit the groove 6, and then drive the storage box 4 to rotate and drive the protruding rod 5 to enter the groove 6, and lock the protruding rod 5 by the locking member. The staff gets off the stepladder body 1, and then drives the two shaft rods 2 to rotate synchronously in the opposite direction by the driving member, driving the fixing rod 3 to rotate to the vertical direction. The two adjacent fixing rods 3 are arranged in parallel, and the two storage boxes 4 are in contact with each other.

[0029] In summary, when the present application is in use, the worker climbs up the stepladder body 1 to perform work, and a fence protection structure is formed by the fixed rod 3 and the storage box 4, thereby preventing the worker from falling due to unstable center of gravity. Tools and parts can be placed in the storage box 4, thereby preventing the tools and parts from being damaged by being dropped directly on the ground, and at the same time preventing injuries to nearby personnel, so it is more practical.

[0030] like Figure 4 As shown, in some embodiments, the locking member includes a locking rod 7 slidably disposed on the fixed rod 3, a return spring 8 is disposed between the locking rod 7 and the fixed rod 3, the two ends of the return spring 8 are respectively fixedly connected to the locking rod 7 and the fixed rod 3, and a wedge block 9 is disposed at the free end of the locking rod 7 for contact with and overlap with the protruding rod 5, and the wedge block 9 is fixed to the free end of the locking rod 7;

[0031] With reference to the above, in the initial state, the locking rod 7 and the wedge block 9 are both in the initial position, the return spring 8 is in the natural state, and the protruding rod 5 is in conflict with and overlaps with the plane of the wedge block 9 to lock the protruding rod 5. When in use, the locking rod 7 is slid to the limit position, driving the wedge block 9 to move away from the protruding rod 5, the return spring 8 is stretched, thereby unlocking the protruding rod 5, and then releasing the locking rod 7, the return spring 8 is reset to the natural state, and the locking rod 7 and the wedge block 9 are both moved to the initial position. Conversely, when the protruding rod 5 enters the groove 6, it first conflicts with and overlaps with the inclined surface of the wedge block 9. Through the transition effect of the inclined surface, the wedge block 9 and the locking rod 7 are forced to move to the limit position together, the return spring 8 is stretched, and then the return spring 8 is reset to the natural state, the locking rod 7 and the wedge block 9 are both moved to the initial position, and the protruding rod 5 is in conflict with and overlaps with the plane of the wedge block 9, thereby locking the protruding rod 5.

[0032] like Figure 3 As shown, in some embodiments, the driving member includes a driving block 10 slidably provided on the stepladder body 1, the driving block 10 slides in the vertical direction, a screw 11 with a thread passing through the driving block 10 is rotatably provided on the stepladder body 1, the screw 11 is in a vertical direction, two driving racks 12 are symmetrically provided on the driving block 10, the driving racks 12 are in a vertical direction and fixed on the driving block 10, and a driving gear 13 meshing with the driving rack 12 is provided on the shaft 2, the driving gear 13 is in a vertical direction and fixed on the shaft 2;

[0033] Referring to the above, in the initial state, the driving block 10 is in the initial position, the fixed rod 3 is in a vertical direction, and the two adjacent fixed rods 3 are distributed in parallel. When in use, the screw 11 is driven to rotate forward, and the driving block 10 will slide upward to the extreme position due to the action of the thread and drive the two driving racks 12 to move together. The two driving gears 13 rotate synchronously in opposite directions due to the meshing action, thereby driving the two shafts 2 to rotate synchronously in opposite directions, and the fixed rod 3 rotates to an inclined direction, forming an angle between the two adjacent fixed rods 3. Conversely, the screw 11 is driven to reverse, and the driving block 10 will slide downward to the initial position due to the action of the thread and drive the two driving racks 12 to move together. The two driving gears 13 rotate synchronously in opposite directions due to the meshing action, thereby driving the two shafts 2 to rotate synchronously in opposite directions, and the fixed rod 3 rotates to a vertical direction.

[0034] like Figure 2 As shown, in some embodiments, a limit rod 14 is hinged on the fixed rod 3, and a connecting rod 15 is hinged between two adjacent limit rods 14;

[0035] Referring to the above, in the initial state, the fixed rod 3 is in a vertical direction, the limiting rod 14 is in a vertical direction, and the connecting rod 15 is in a horizontal direction. When the fixed rod 3 is rotated to an inclined direction, the limiting rod 14 is rotated to a horizontal direction. Through the cooperation of the limiting rod 14 and the connecting rod 15, the two adjacent fixed rods 3 are pulled against each other, thereby improving the structural strength and stability of use, and at the same time making the fence protection structure more complete.

[0036] like Figure 5-Figure 6 As shown, in some embodiments, a guide rod 16 and a lifting member are provided on the ladder body 1. The guide rod 16 is vertical and fixed on the ladder body 1. A storage box 17 is slidably provided on the guide rod 16. The storage box 17 slides in the vertical direction and is driven to slide by the lifting member.

[0037] Referring to the above, in the initial state, the storage box 17 is in the initial position. When in use, the staff can place tools and parts in the storage box 17. When the staff climbs onto the stepladder body 1 to work, the storage box 17 is driven by the lifting member to slide upward to the extreme position, and then the tools and parts are taken out of the storage box 17 for use, so there is no need to carry tools and parts to climb up the stepladder body 1, which is more convenient to use. Conversely, after use, the tools and parts can be placed in the storage box 17, and the storage box 17 is driven by the lifting member to slide downward to the initial position.

[0038] like Figure 7-Figure 8 As shown, in some embodiments, the lifting member includes a rotating rod 18 and a worm 19 both rotatably arranged on the stepladder body 1, the rotating rod 18 is horizontal, the worm 19 is vertical, and a worm wheel 20 and a rope winding wheel 21 are provided on the rotating rod 18, the worm wheel 20 and the rope winding wheel 21 are both vertically oriented and fixed on the rotating rod 18, the worm wheel 20 is engaged with the worm 19, and a pull rope 22 is wound around the rope winding wheel 21, and the free end of the pull rope 22 is connected to the storage box 17;

[0039] Referring to the above, when in use, the worm 19 is driven to rotate forward, the worm wheel 20 will rotate due to the meshing action and drive the rotating rod 18 and the rope pulley 21 to rotate together, and the pull rope 22 is tightened through the rope pulley 21, thereby driving the storage box 17 to slide upward to the extreme position. Conversely, the worm 19 is driven to rotate reversely, the worm wheel 20 will rotate due to the meshing action and drive the rotating rod 18 and the rope pulley 21 to rotate together, and the pull rope 22 is loosened through the rope pulley 21, and the storage box 17 slides downward to the initial position.

[0040] like Figure 5-Figure 9 As shown, in some embodiments, the storage box 17 is detachably disposed on the guide rod 16 , and the free end of the pull rope 22 is detachably connected to the storage box 17 ;

[0041] Referring to the above, when in use, the storage box 17 is installed on the guide rod 16, and the free end of the pull rope 22 is connected to the storage box 17. After use, the free end of the pull rope 22 is removed from the storage box 17, and the storage box 17 is removed from the guide rod 16, which helps to reduce the occupied space and facilitates transportation and transfer.

[0042] like Figure 5-Figure 9 As shown, in some embodiments, the guide rod 16 is provided with a slide groove 23 on the opposite sides thereof, and the slide groove 23 is provided in the vertical direction. Two sliders 24 are slidably provided on the storage box 17, and the sliders 24 slide in the horizontal direction. The sliders 24 are plugged into and slidably matched with the slide groove 23. A forward and reverse screw rod 25 is rotatably provided on the storage box 17, and the forward and reverse screw rod 25 is in the horizontal direction. The two sliders 24 are respectively threadedly matched with the forward and reverse thread segments of the forward and reverse screw rod 25.

[0043] Referring to the above, in the initial state, the two sliders 24 are away from each other. When in use, the storage box 17 is made to contact and overlap with the guide rod 16, driving the forward and reverse screw rods 25 to rotate forward, and the two sliders 24 are synchronously slid in reverse due to the action of the forward and reverse threads until the two sliders 24 are respectively inserted into the two slide grooves 23 to achieve the installation of the storage box 17. When the storage box 17 slides, the two sliders 24 slide in the two slide grooves 23 respectively. Conversely, after use, the forward and reverse screw rods 25 are driven to reverse, and the two sliders 24 are synchronously slid in reverse due to the action of the forward and reverse threads to move away from each other until the two sliders 24 exit the two slide grooves 23 respectively to achieve the disassembly of the storage box 17.

[0044] like Figure 8 As shown, in some embodiments, a fixing ring 26 is provided on the storage box 17, the fixing ring 26 is fixed on the storage box 17, and the free end of the pull rope 22 is provided with a hook 27 that is hooked with the fixing ring 26, and the hook 27 is fixed to the free end of the pull rope 22;

[0045] Referring to the above, when in use, the hook 27 is hooked and matched with the fixing ring 26 to connect the pull rope 22 to the storage box 17. Conversely, after use, the hook 27 is removed from the fixing ring 26 to disassemble the pull rope 22 from the storage box 17.

[0046] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional safety engineering ladder, comprising a herringbone ladder body (1), characterized in that: Two shafts (2) are rotatably provided on the ladder body (1), and two fixing rods (3) are provided on the shafts (2). One of the fixing rods (3) is hingedly connected to a storage box (4), and a protruding rod (5) is provided on the storage box (4). The other fixing rod (3) is provided with a groove (6) and a locking piece. The protruding rod (5) and the groove (6) are plugged into each other, and the protruding rod (5) is locked or unlocked by the locking piece. The ladder is provided with a driving piece for driving the two shafts (2) to rotate synchronously in opposite directions.

2. The multifunctional safety engineering ladder according to claim 1, characterized in that: The locking member comprises a locking rod (7) slidably arranged on the fixing rod (3), a return spring (8) is arranged between the locking rod (7) and the fixing rod (3), and a wedge block (9) is arranged at the free end of the locking rod (7) for contacting and overlapping with the protruding rod (5).

3. The multifunctional safety engineering ladder according to claim 1, characterized in that: The driving member comprises a driving block (10) slidably arranged on a stepladder body (1); a screw (11) is rotatably arranged on the stepladder body (1) and is threadedly passed through the driving block (10); two driving racks (12) are symmetrically arranged on the driving block (10); and a driving gear (13) meshing with the driving racks (12) is arranged on the shaft (2).

4. The multifunctional safety engineering ladder according to claim 1, characterized in that: A limiting rod (14) is hingedly connected to the fixing rod (3), and a connecting rod (15) is hingedly connected between two adjacent limiting rods (14).

5. The multifunctional safety engineering ladder according to claim 1, characterized in that: The herringbone ladder body (1) is provided with a guide rod (16) and a lifting member, a storage box (17) is slidably provided on the guide rod (16), and the storage box (17) is driven to slide by the lifting member.

6. The multifunctional safety engineering ladder according to claim 5, characterized in that: The lifting member comprises a rotating rod (18) and a worm (19) both rotatably arranged on the ladder body (1); a worm wheel (20) and a rope reel (21) are arranged on the rotating rod (18); the worm wheel (20) is meshed with the worm (19); a pull rope (22) is wound around the rope reel (21); and the free end of the pull rope (22) is connected to the storage box (17).

7. The multifunctional safety engineering ladder according to claim 6, characterized in that: The storage box (17) is detachably arranged on the guide rod (16), and the free end of the pull rope (22) is detachably connected to the storage box (17).

8. The multifunctional safety engineering ladder according to claim 7, characterized in that: The guide rod (16) is provided with a sliding groove (23) on the opposite sides thereof. Two sliders (24) are slidably provided on the storage box (17). The sliders (24) are plugged into and slidably matched with the sliding groove (23). The storage box (17) is rotatably provided with a forward and reverse screw rod (25). The two sliders (24) are respectively threadedly matched with the forward and reverse thread sections of the forward and reverse screw rod (25).

9. The multifunctional safety engineering ladder according to claim 7, characterized in that: The storage box (17) is provided with a fixing ring (26), and the free end of the pull rope (22) is provided with a hook (27) that is hooked and matched with the fixing ring (26).

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