Industrial step ladder convenient to move

Abstract

The utility model relates to the technical field of step ladders, and discloses an industrial step ladder convenient to move, which solves the problems that the existing step ladder is supported by rollers, the standing stability of the existing step ladder is not strong, the step ladder can be displaced and even overturned when being collided, and the existing step ladder has a very large potential safety hazard, and comprises a step ladder body, a mounting plate is fixedly mounted on the upper portion of one side of the step ladder body, a handrail is fixedly mounted between the step ladder body and the upper side of the mounting plate, a supporting column is fixedly mounted at the bottom of the mounting plate, an equipment box is fixedly mounted at the bottom of the supporting column, and one side of the equipment box is fixedly connected with the lower portion of one side of the step ladder body. A mounting box is fixedly mounted on one side of the top of the equipment box, a vertical moving assembly is arranged in the mounting box and the equipment box, and four universal wheels are mounted at the bottom of the vertical moving assembly; the step ladder has very good standing stability, does not displace and overturn when being collided, and has very good safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of step ladders, in particular to an industrial step ladder which is easy to move. Background Art

[0002] A step ladder is a staircase structure with an inclined angle, and the step plates are arranged in a stepped shape. The step ladder can be set with different inclined angles as needed to adapt to different places of use. The step ladder is characterized by a simple structure, easy to manufacture and install, and is commonly used in outdoor places and steeper terrains. An existing patent (Announcement No.: CN215671990U) discloses a movable climbing step ladder that can climb over obstacles. The bottom of the step ladder is equipped with climbing rollers that can climb over obstacles. When the ladder is moved, the climbing rollers will climb over the obstacles, allowing the ladder to continue moving. No multiple people are required to assist, and horizontal movement on uneven roads can be achieved without the use of lifting equipment such as a crane. However, the step ladder is supported by rollers, and its standing stability is not strong. When it is hit, the step ladder will be displaced or even overturned, posing a very large safety hazard. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an industrial step ladder that is easy to move, which effectively solves the problem that the existing step ladder is supported by rollers, has poor standing stability, and when hit, it will cause the step ladder to move or even overturn, posing a very serious safety hazard.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an industrial step ladder that is easy to move, comprising a step ladder body, a mounting plate fixedly installed on the upper part of one side of the step ladder body, a handrail fixedly installed between the step ladder body and the upper side of the mounting plate, a support column fixedly installed on the bottom of the mounting plate, an equipment box fixedly installed on the bottom of the support column, one side of the equipment box is fixedly connected to the lower part of one side of the step ladder body, an installation box fixedly installed on one side of the top of the equipment box, a vertical moving component is provided inside the installation box and the equipment box, and four universal wheels are installed on the bottom of the vertical moving component.

[0005] Preferably, the vertical movement assembly includes a driving motor and a support plate, the driving motor is fixedly installed inside the installation box, the output end of the driving motor is fixedly installed with a first rotating rod, the bottom of the first rotating rod extends to the inside of the equipment box and is fixedly installed with a first bevel gear, the bottom of the first bevel gear is rotatably installed with a mounting rod, one end of the mounting rod is fixedly connected to the inner wall of the equipment box, one side of the first bevel gear is meshingly connected with the second bevel gear, one side of the second bevel gear is fixedly installed with a second rotating rod, a sleeve is rotatably installed on the surface of the second rotating rod, a first connecting block is fixedly installed on the upper side of the sleeve, the top of the first connecting block is fixedly connected to the top of the inside of the equipment box, and the support plate is installed on the lower side of the inside of the equipment box.

[0006] Preferably, a bidirectional threaded rod is fixedly installed at one end of the second rotating rod away from the second bevel gear, and a threaded sleeve is threadedly connected to two opposite threaded sections on the surface of the bidirectional threaded rod, a second connecting block is fixedly installed on the top of the threaded sleeve, a first sliding block is fixedly installed on the top of the second connecting block, a first sliding groove is opened on the top of the interior of the equipment box, and the first sliding block is installed inside the first sliding groove.

[0007] Preferably, a second slide groove is provided on the top of the support plate, a cross movable frame is rotatably installed between the lower sides of the two threaded sleeves, second sliders are rotatably installed at both ends of the lower side of the cross movable frame, the second sliders are installed inside the second slide groove, third connecting blocks are fixedly installed on both sides of the support plate, sliding sleeves are fixedly installed at the ends of the two third connecting blocks away from each other, sliding rods are inserted inside the sliding sleeves, the tops of the sliding rods are fixedly connected to the inner walls of the equipment box, and the bottom four corners of the support plate are connected to four universal wheels.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] When moving, the operator pushes the step ladder body to make the universal wheel roll, and the device can be driven to move to the work site conveniently. After arriving at the work site, the operator starts the driving motor to drive the first rotating rod to rotate. When the first rotating rod rotates, it drives the first bevel gear to rotate along the mounting rod. When the first bevel gear rotates, it drives the second rotating rod to rotate inside the shaft sleeve through the second bevel gear. When the second rotating rod rotates, it drives the two threaded sleeves to move back and forth through the bidirectional threaded rod. When the threaded sleeve moves back and forth, it drives the first slider to slide inside the first slide groove through the second connecting block, thereby increasing the stability of the threaded sleeve when moving.

[0010] When the two threaded sleeves move back and forth, the cross movable frame will be driven to contract. When the cross movable frame contracts, it will drive the second sliding block to slide inside the second sliding groove, thereby driving the supporting plate to move up. When the supporting plate moves up, the sliding sleeve is driven to slide on the surface of the sliding rod through the third connecting block, thereby increasing the stability of the supporting plate when it moves. When the support plate moves up, it drives the universal wheel to move up to the inside of the equipment box, so that the bottom of the equipment box contacts the ground, supporting the device as a whole, thereby improving the stability of the device when standing; this makes the step ladder have very good standing stability, will not cause it to be displaced and overturned when it is hit, and has very good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached picture:

[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of the step ladder of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the step ladder of the utility model;

[0015] Figure 3 For this utility model Figure 1 A schematic diagram of a local enlarged structure;

[0016] In the figure: 1. step ladder body; 2. mounting plate; 3. handrail; 4. support column; 5. equipment box; 6. mounting box; 7. drive motor; 8. first rotating rod; 9. first bevel gear; 10. mounting rod; 11. second bevel gear; 12. second rotating rod; 13. bushing; 14. first connecting block; 15. bidirectional threaded rod; 16. threaded sleeve; 17. second connecting block; 18. first slider; 19. cross movable frame; 20. second slider; 21. support plate; 22. second slide groove; 23. third connecting block; 24. sleeve; 25. slide rod; 26. universal wheel. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] Depend on Figures 1 to 3 The utility model includes a step ladder body 1, a mounting plate 2 is fixedly installed on the upper part of one side of the step ladder body 1, a handrail 3 is fixedly installed between the step ladder body 1 and the upper side of the mounting plate 2, a support column 4 is fixedly installed on the bottom of the mounting plate 2, an equipment box 5 is fixedly installed on the bottom of the support column 4, one side of the equipment box 5 is fixedly connected to the lower part of one side of the step ladder body 1, a mounting box 6 is fixedly installed on one side of the top of the equipment box 5, a vertical moving assembly is provided inside the mounting box 6 and the equipment box 5, and four universal wheels 26 are installed on the bottom of the vertical moving assembly.

[0019] When moving, the operator pushes the step ladder body 1 to make the universal wheel 26 roll, and the device can be easily moved to the work site. After arriving at the work site, the operator starts the vertical moving component to drive the universal wheel 26 to move up to the inside of the equipment box 5, so that the bottom of the equipment box 5 contacts the ground, supporting the device as a whole, thereby improving the stability of the device when standing; this makes the step ladder have very good standing stability, will not cause it to be displaced and overturned when it is hit, and has good safety.

[0020] The vertical movement component includes a driving motor 7 and a support plate 21. The driving motor 7 is fixedly installed inside the installation box 6. The output end of the driving motor 7 is fixedly installed with a first rotating rod 8. The bottom of the first rotating rod 8 extends to the inside of the equipment box 5 and is fixedly installed with a first bevel gear 9. The bottom of the first bevel gear 9 is rotatably installed with a mounting rod 10. One end of the mounting rod 10 is fixedly connected to the inner wall of the equipment box 5. One side of the first bevel gear 9 is meshed and connected with a second bevel gear 11. One side of the second bevel gear 11 is fixedly installed with a second rotating rod 12. The surface of the second rotating rod 12 is rotatably installed with a shaft sleeve 13. The upper side of the shaft sleeve 13 is fixedly installed with a first connecting block 14. The top of the first connecting block 14 is fixedly connected to the top of the inside of the equipment box 5. The support plate 21 is installed on the lower side of the inside of the equipment box 5; the end of the second rotating rod 12 away from the second bevel gear 11 is fixedly installed with a bidirectional threaded rod 15. The surface of the bidirectional threaded rod 15 A threaded sleeve 16 is threadedly connected to the two opposite threaded sections of the surface, a second connecting block 17 is fixedly installed on the top of the threaded sleeve 16, a first sliding block 18 is fixedly installed on the top of the second connecting block 17, a first sliding groove is opened at the top of the inside of the equipment box 5, and the first sliding block 18 is installed inside the first sliding groove; a second sliding groove 22 is opened at the top of the support plate 21, a cross movable frame 19 is rotatably installed between the lower sides of the two threaded sleeves 16, and second sliding blocks 20 are rotatably installed at both ends of the lower side of the cross movable frame 19, and the second sliding blocks 20 are installed inside the second sliding groove 22, and third connecting blocks 23 are fixedly installed on both sides of the support plate 21, and a sliding sleeve 24 is fixedly installed at one end of the two third connecting blocks 23 away from each other, and a sliding rod 25 is inserted inside the sliding sleeve 24, and the top of the sliding rod 25 is fixedly connected to the inner wall of the equipment box 5, and the bottom four corners of the support plate 21 are connected to four universal wheels 26.

[0021] The operator starts the driving motor 7 to drive the first rotating rod 8 to rotate. When the first rotating rod 8 rotates, it drives the first bevel gear 9 to rotate along the mounting rod 10. When the first bevel gear 9 rotates, it drives the second rotating rod 12 to rotate inside the shaft sleeve 13 through the second bevel gear 11. When the second rotating rod 12 rotates, it drives the two threaded sleeves 16 to move backward through the bidirectional threaded rod 15. When the threaded sleeve 16 moves backward, it drives the first slider 18 to slide inside the first slide groove through the second connecting block 17, which increases the stability of the threaded sleeve 16 when it moves.

[0022] When the two threaded sleeves 16 move back and forth, they will drive the cross movable frame 19 to contract. When the cross movable frame 19 contracts, it will drive the second sliding block 20 to slide inside the second sliding groove 22, thereby driving the support plate 21 to move upward. When the support plate 21 moves upward, the sliding sleeve 24 is driven to slide on the surface of the sliding rod 25 through the third connecting block 23, thereby increasing the stability of the support plate 21 when it moves. When the support plate 21 moves upward, it drives the universal wheel 26 to move upward to the inside of the equipment box 5, so that the bottom of the equipment box 5 contacts the ground, and the device is supported as a whole.

Claims

1. An industrial step ladder that is easy to move, comprising a step ladder body (1), characterized in that: A mounting plate (2) is fixedly mounted on the upper part of one side of the step ladder body (1); a handrail (3) is fixedly mounted between the step ladder body (1) and the upper side of the mounting plate (2); a support column (4) is fixedly mounted on the bottom of the mounting plate (2); an equipment box (5) is fixedly mounted on the bottom of the support column (4); one side of the equipment box (5) is fixedly connected to the lower part of one side of the step ladder body (1); a mounting box (6) is fixedly mounted on one side of the top of the equipment box (5); a vertical moving assembly is provided inside the mounting box (6) and the equipment box (5); four universal wheels (26) are mounted on the bottom of the vertical moving assembly.

2. The portable industrial step ladder according to claim 1, characterized in that: The vertical moving assembly comprises a driving motor (7) and a supporting plate (21); the driving motor (7) is fixedly mounted inside the mounting box (6); a first rotating rod (8) is fixedly mounted on the output end of the driving motor (7); the bottom of the first rotating rod (8) extends to the inside of the equipment box (5) and is fixedly mounted with a first bevel gear (9); a mounting rod (10) is rotatably mounted on the bottom of the first bevel gear (9); one end of the mounting rod (10) is fixedly connected to the inner wall of the equipment box (5); a second bevel gear (11) is meshedly connected to one side of the first bevel gear (9); a second rotating rod (12) is fixedly mounted on one side of the second bevel gear (11); a shaft sleeve (13) is rotatably mounted on the surface of the second rotating rod (12); a first connecting block (14) is fixedly mounted on the upper side of the shaft sleeve (13); a top of the first connecting block (14) is fixedly connected to the top of the inside of the equipment box (5); and the supporting plate (21) is mounted on the lower side of the inside of the equipment box (5).

3. The portable industrial step ladder according to claim 2, characterized in that: A bidirectional threaded rod (15) is fixedly mounted on one end of the second rotating rod (12) away from the second bevel gear (11); threaded sleeves (16) are threadedly connected to two opposite threaded sections on the surface of the bidirectional threaded rod (15); a second connecting block (17) is fixedly mounted on the top of the threaded sleeve (16); a first sliding block (18) is fixedly mounted on the top of the second connecting block (17); a first sliding groove is opened on the top of the interior of the equipment box (5); and the first sliding block (18) is mounted inside the first sliding groove.

4. The portable industrial step ladder according to claim 3, characterized in that: A second slide groove (22) is provided on the top of the support plate (21), a cross movable frame (19) is rotatably installed between the lower sides of the two threaded sleeves (16), second sliders (20) are rotatably installed at both ends of the lower side of the cross movable frame (19), and the second sliders (20) are installed inside the second slide groove (22), third connecting blocks (23) are fixedly installed on both sides of the support plate (21), and sliding sleeves (24) are fixedly installed at the ends of the two third connecting blocks (23) away from each other, and sliding rods (25) are inserted inside the sliding sleeves (24), and the tops of the sliding rods (25) are fixedly connected to the inner wall of the equipment box (5), and the four corners of the bottom of the support plate (21) are connected to four universal wheels (26).

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