Adjustable scaffold

Abstract

The utility model discloses an adjustable scaffold which comprises a platform used for a welder to finish the welding process of steel bars erected on the platform; the vertical rod is connected with a transverse rod, and the vertical rod is used for supporting the platform; the adjusting mechanism is connected between the platform and the vertical rod and is used for adjusting the height of the platform; wherein the adjusting mechanism comprises a lead screw, a rotating nut, a driving synchronous wheel, a driven synchronous wheel, a synchronous belt and a driving motor, the two ends of the lead screw are connected to the platform and the vertical rod respectively, the rotating nut is connected to the lead screw in a sleeving mode, the driven synchronous wheel is connected with the rotating nut, and the synchronous belt is connected with the driving synchronous wheel. The synchronous belt is connected to the driving synchronous wheel and the driven synchronous wheel in a sleeving mode, and the driving synchronous wheel is connected to the driving motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of scaffolding, and particularly relates to an adjustable scaffolding. Background Technique

[0002] A scaffolding is a device widely used in construction projects such as building construction, equipment installation, and decoration. It provides a safe and convenient working platform for construction workers, enabling high-altitude operations to proceed smoothly. A scaffolding usually consists of vertical poles and horizontal bars, etc., and is made of various materials, including steel pipes, aluminum alloys, etc. Its erection needs to strictly follow relevant safety codes and standards to ensure its stability and load-bearing capacity.

[0003] The steel bar welding technology is one of the commonly used steel bar connection methods in construction engineering, and it plays a key role in enhancing the integrity and stability of the structure. It can provide a stronger connection strength than the binding connection, ensuring that there is no relative slip between steel bars when the structure is stressed. Secondly, welding can save steel bar materials, reduce the number of joints, and improve construction efficiency.

[0004] When welding steel bars, due to structural design requirements, construction sequence and process arrangements, and space limitations, etc., the steel bars need to be erected for welding. For example, in the design of some building structures, the steel bars at specific positions need to be welded in an upright manner to meet the stress requirements of the structure. For instance, the longitudinal steel bars in some columns need to be erected for welding according to the design to provide vertical load-bearing capacity.

[0005] The erected steel bars make the welding position at a high place or in a vertical state, which puts higher requirements on the welding operator's posture and stability. Therefore, the welder needs to use a scaffolding for welding operations. Currently, when welding erected steel bars, the welder stands on the platform of the scaffolding to weld the erected steel structure. However, the platform of the existing scaffolding is fixed and cannot flexibly meet the on-site welding requirements. Therefore, a scaffolding that can adjust the height of the platform is needed to flexibly meet the welding requirements. Content of the Utility Model

[0006] In view of the deficiencies of the prior art, the purpose of the present utility model is to provide an adjustable scaffolding to solve the problem of how to adjust the platform of the scaffolding in the prior art, so that the scaffolding can flexibly meet the on-site welding requirements. The specific technical solutions are as follows:

[0007] An adjustable scaffolding, comprising:

[0008] A platform, which is used for a welder to stand on the platform to complete the welding process of the erected steel bars;

[0009] Vertical poles, on which horizontal bars are connected, and the vertical poles are used to support the platform;

[0010] An adjusting mechanism, which is connected between the platform and the vertical rod and is used to adjust the height of the platform;

[0011] Wherein, the adjusting mechanism includes a lead screw, a rotating nut, a driving synchronous pulley, a driven synchronous pulley, a synchronous belt and a driving motor. The two ends of the lead screw are respectively connected to the platform and the vertical rod. The rotating nut is sleeved on the lead screw. The driven synchronous pulley is connected to the rotating nut. The synchronous belt is sleeved on the driving synchronous pulley and the driven synchronous pulley. The driving synchronous pulley is connected to the driving motor.

[0012] Preferably, a thread matching the lead screw is formed on the inner ring of the rotating nut, and ratchet teeth are formed on the outer ring of the rotating nut.

[0013] Preferably, a stop mechanism is connected to the vertical rod. The stop mechanism includes a check ratchet, a rotating member, a connecting rod and a connecting ring. The check ratchet is rotatably connected to the rotating member. The rotating member is connected to the connecting rod. The connecting rod is connected to the connecting ring. The connecting ring is sleeved on the vertical rod.

[0014] Preferably, an L-shaped support plate is connected to the cross bar. A fixing plate is connected to the L-shaped support plate. The driving motor is connected to the fixing plate.

[0015] Preferably, a cavity is formed inside the vertical rod. An opening is formed at the upper end of the vertical rod. The inner diameter of the cavity is larger than the inner diameter of the opening. The lead screw is arranged in the cavity. A limiting portion is formed on the lead screw. The outer diameter of the limiting portion is larger than the inner diameter of the opening.

[0016] Preferably, a connecting rod is connected to the platform. A threaded hole is formed in the connecting rod. The lead screw is connected in the threaded hole.

[0017] Preferably, the adjustable scaffold includes four vertical rods, four cross bars and four adjusting mechanisms. The four vertical rods are arranged in a square shape. One cross bar is connected between two adjacent vertical rods. Each vertical rod is provided with one adjusting mechanism.

[0018] Preferably, the driving motors in the four adjusting mechanisms are uniformly connected to a control unit, and the control unit controls the four driving motors to drive simultaneously.

[0019] Preferably, a fixing rod is connected between the vertical rod and the cross bar. The vertical rod, the cross bar and the fixing rod are arranged in a triangular state.

[0020] Preferably, a storage table is connected to the cross bar.

[0021] An adjustable scaffolding provided by the present utility model drives the active synchronous pulley to rotate through a driving motor, thereby driving the passive synchronous pulley to rotate through a synchronous belt, and then driving the rotating nut connected to the passive synchronous pulley to rotate. Under the rotation of the rotating nut, the movement of the lead screw is realized, so as to realize the adjustment of the height of the platform and make the scaffolding flexibly meet the on-site welding requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0023] Figure 1 is the front view of the scaffolding provided by the present utility model;

[0024] Figure 2 is the top view of the scaffolding provided by the present utility model;

[0025] Figure 3 is the connection schematic diagram of the vertical rod and the lead screw provided by the present utility model;

[0026] Figure 4 is the connection schematic diagram of the vertical rod and the connecting rod provided by the present utility model;

[0027] Figure 5 is the structural schematic diagram of the stopping mechanism provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top part", "bottom part", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0030] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more, understandings such as "greater than", "less than", "exceeding", etc. do not include the base number, and understandings such as "above", "below", "within", etc. include the base number. If there is a description of the terms "first", "second", "third", etc., they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. The embodiments of the present utility model will be described below according to its overall structure.

[0032] Refer to Figure 1 and Figure 2 , wherein, the Figure 2 is a top view of the adjustable scaffolding after removing the top platform 1. The adjustable scaffolding includes: a platform 1, vertical poles 2, cross bars 5, and an adjusting mechanism 3.

[0033] Specifically, there are four of the vertical poles 2, four of the cross bars 5, and four of the adjusting mechanisms 3. The four vertical poles 2 are arranged in a square shape, and one of the cross bars 5 is connected between two adjacent vertical poles 2, and each vertical pole 2 is provided with one of the adjusting mechanisms 3.

[0034] The platform 1 is used for a welder to stand on the platform 1 to complete the welding process of the erected steel bars, and the vertical poles 2 are used to support the platform 1.

[0035] The adjusting mechanism 3, the adjusting mechanism 3 is connected between the platform 1 and the vertical pole 2 and is used to adjust the height of the platform 1.

[0036] Wherein, the adjusting mechanism 3 includes a lead screw 31, a rotating nut 32, a driving synchronous pulley 33, a driven synchronous pulley 34, a synchronous belt 35, and a driving motor 36. The two ends of the lead screw 31 are respectively connected to the platform 1 and the vertical pole 2. The rotating nut 32 is sleeved on the lead screw 31. The driven synchronous pulley 34 is connected to the rotating nut 32. The synchronous belt 35 is sleeved on the driving synchronous pulley 33 and the driven synchronous pulley 34, and the driving synchronous pulley 33 is connected to the driving motor 36.

[0037] The adjustment mechanism of the adjustable scaffold provided in the above embodiment utilizes the cooperation of the screw and the nut to realize the lifting and lowering of the platform, thereby realizing the adjustable function. The cooperation of the screw and the nut is a mechanical transmission that realizes linear motion through spiral motion. The screw usually has a spiral external thread, and the nut has an internal thread that matches it. When the screw rotates, due to the interaction of the threads, the nut will produce linear movement along the axis direction of the screw. When the screw is fixed and cannot rotate, the nut can rotate freely, so when the nut rotates, due to the interaction of the threads, the screw will move along the axial direction. Therefore, the adjustable scaffold drives the active synchronous wheel 33 to rotate through the driving motor 36, thereby driving the passive synchronous wheel 34 to rotate through the synchronous belt 35, thereby driving the rotating nut 32 connected to the passive synchronous wheel 34 to rotate, and the movement of the wire 31 rod is realized under the rotation of the rotating nut 32, thereby realizing the adjustment of the height of the platform, so that the scaffold is flexibly applicable to the welding needs on site.

[0038] Figure 5 This is a schematic diagram of the structure of the stop mechanism provided by the utility model. Figure 1 and Figure 5 In a preferred embodiment, the vertical rod 2 is connected with a stop mechanism 4, which includes a non-return pawl 41, a rotating member 42, a connecting rod 43 and a connecting ring 44. The non-return pawl 41 is rotatably connected to the rotating member 42, the rotating member 42 is connected to the connecting rod 43, the connecting rod 43 is connected to the connecting ring 44, and the connecting ring 44 is sleeved on the vertical rod 2. The inner ring of the rotating nut 32 is formed with a thread 321 that matches the screw rod 31, and the outer ring of the rotating nut 32 is formed with a ratchet 322.

[0039] As a preferred embodiment, the stop mechanism 4 is used to stop the rotating nut 32. Figure 5 Under normal circumstances, when the rotating nut 32 does not rotate, that is, when the screw rod 31 does not move up and down, the non-return pawl 41 is clamped on the ratchet spacing formed by the adjacent ratchet teeth 322 of the rotating nut 32, and supports the rotating nut 32, thereby stopping the rotating nut 32. When the rotating nut 32 is subjected to force and rotates under the drive of the driving motor 36, the non-return pawl 41 rotates with the rotation of the rotating nut 32, disengages from the ratchet spacing, and then enters the next ratchet spacing. In this way, when the rotating nut 32 drives the screw rod 31 to move, the non-return pawl 41 does not hinder the movement of the screw rod 31. When the screw rod 31 moves to the desired position of the platform 1, the non-return pawl 41 is clamped between the ratchet teeth 322, stops the rotating nut 32, and keeps the screw rod 31 in a fixed position.

[0040] like Figure 5As shown, when the rotating nut 32 rotates clockwise, the lead screw 31 moves upward, realizing the rising of the platform 1. Under the push of the ratchet teeth, the check ratchet 41 first gradually moves upward. When the ratchet teeth rotate to a certain position, the check ratchet 41 disengages from the ratchet tooth spacing and simultaneously moves downward to the next ratchet tooth spacing. Similarly, when the rotating nut 32 rotates counterclockwise, the lead screw 31 moves downward, realizing the lowering of the platform 1.

[0041] Refer to Figure 1 , in a preferred embodiment, an L-shaped support plate 6 is connected to the cross bar 5, a fixing plate 7 is connected to the L-shaped support plate 6, and the drive motor 36 is connected to the fixing plate 7.

[0042] Specifically, the short end of the L-shaped support plate 6 is connected to the cross bar 5, the fixing plate 7 is connected to the long end of the L-shaped support plate 6, and the L-shaped support plate 6 can connect the output end of the drive motor 36 to the driving synchronous pulley 33.

[0043] Refer to Figure 3 , in a preferred embodiment, a cavity 21 is formed inside the vertical rod 2, an opening 22 is formed at the upper end of the vertical rod 2, and the inner diameter of the cavity 21 is larger than the inner diameter of the opening 22; the lead screw 31 is arranged inside the cavity 21, and a limiting portion 310 is formed on the lead screw 31, and the outer diameter of the limiting portion 310 is larger than the inner diameter of the opening 22.

[0044] Specifically, the cavity 21 can realize the up and down movement of the lead screw 31 inside the vertical rod 2, and the setting of the limiting portion 310 can prevent the lead screw 31 from moving out of the cavity 21, playing a limiting role for the lead screw 31.

[0045] Refer to Figure 4 , in a preferred embodiment, a connecting rod 8 is connected to the platform 1, a threaded hole 81 is formed in the connecting rod 8, and the lead screw 31 is connected in the threaded hole 81.

[0046] Specifically, the lead screw 31 is fixedly connected to the threaded hole 81 on the connecting rod 8, so that the lead screw 31 cannot rotate, realizing that when the rotating nut 32 rotates, it drives the lead screw 31 to move up and down.

[0047] In a preferred embodiment, the drive motors 36 in the four adjusting mechanisms 3 are uniformly connected to the control unit, and the control unit controls the four drive motors 36 to drive simultaneously.

[0048] Specifically, the four drive motors 36 are connected to the same control switch through wires, and the four drive motors 36 are driven simultaneously through the control switch.

[0049] Refer to Figure 1, in a preferred embodiment, a fixing rod 9 is connected between the vertical rod 2 and the horizontal rod 5, and the vertical rod 2, the horizontal rod 5 and the fixing rod 9 are arranged in a triangular state. The fixing rod 9 can make the whole scaffold more stable.

[0050] Refer to Figure 2 , in a preferred embodiment, a storage table 10 is connected to the horizontal rod 5, and the storage table 10 can be used to place some welding tools and the like.

[0051] In summary, the present invention provides an adjustable scaffold, which can solve the problem of how to adjust the height of the scaffold platform in the prior art, and makes the scaffold flexibly applicable to the on-site welding requirements.

[0052] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made in light of the above teachings. Although the embodiments of the present invention have been shown and described, the specific embodiments are merely interpretations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can, after reading this specification, make modifications, substitutions, variations and various different selections and changes that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An adjustable scaffold, characterized in that: include: A platform (1), wherein the platform (1) is used for a welder to stand on the platform (1) to complete the welding process of the opposing steel bars; A vertical pole (2), the vertical pole (2) being connected to a horizontal pole (5), and the vertical pole (2) being used to support the platform (1); An adjusting mechanism (3), the adjusting mechanism (3) being connected between the platform (1) and the upright pole (2) and being used for adjusting the height of the platform (1); The adjusting mechanism (3) comprises a screw rod (31), a rotating nut (32), an active synchronous wheel (33), a passive synchronous wheel (34), a synchronous belt (35) and a driving motor (36); the two ends of the screw rod (31) are respectively connected to the platform (1) and the vertical rod (2); the rotating nut (32) is sleeved on the screw rod (31); the passive synchronous wheel (34) is connected to the rotating nut (32); the synchronous belt (35) is sleeved on the active synchronous wheel (33) and the passive synchronous wheel (34); and the active synchronous wheel (33) is connected to the driving motor (36).

2. The adjustable scaffold according to claim 1, characterized in that: A thread (321) matching the screw rod (31) is formed on the inner ring of the rotating nut (32), and a ratchet (322) is formed on the outer ring of the rotating nut (32).

3. The adjustable scaffold according to claim 1, characterized in that: The vertical pole (2) is connected to a stop mechanism (4), the stop mechanism (4) comprising a non-return pawl (41), a rotating member (42), a connecting rod (43) and a connecting ring (44), the non-return pawl (41) is rotatably connected to the rotating member (42), the rotating member (42) is connected to the connecting rod (43), the connecting rod (43) is connected to the connecting ring (44), and the connecting ring (44) is sleeved on the vertical pole (2).

4. The adjustable scaffold according to claim 1, characterized in that: The cross bar (5) is connected to an L-shaped support plate (6), the L-shaped support plate (6) is connected to a fixing plate (7), and the drive motor (36) is connected to the fixing plate (7).

5. The adjustable scaffold according to claim 1, characterized in that: A cavity (21) is formed inside the vertical rod (2), an opening (22) is formed at the upper end of the vertical rod (2), and the inner diameter of the cavity (21) is greater than the inner diameter of the opening (22); the screw rod (31) is arranged in the cavity (21), a limiting portion (310) is formed on the screw rod (31), and the outer diameter of the limiting portion (310) is greater than the inner diameter of the opening (22).

6. The adjustable scaffold according to claim 1, characterized in that: The platform (1) is connected to a connecting rod (8), the connecting rod (8) is provided with a threaded hole (81), and the screw rod (31) is connected in the threaded hole (81).

7. The adjustable scaffold according to claim 1, characterized in that: The adjustable scaffold comprises four vertical poles (2), four horizontal poles (5) and four adjustment mechanisms (3); the four vertical poles (2) are arranged in a square shape, one horizontal pole (5) is connected between two adjacent vertical poles (2), and each vertical pole (2) is equipped with one adjustment mechanism (3).

8. The adjustable scaffold according to claim 7, characterized in that: The drive motors (36) in the four adjustment mechanisms (3) are uniformly connected to a control unit, and the control unit controls the four drive motors (36) to drive simultaneously.

9. The adjustable scaffold according to claim 1, characterized in that: A fixing rod (9) is connected between the vertical rod (2) and the horizontal rod (5); the vertical rod (2), the horizontal rod (5) and the fixing rod (9) are arranged in a triangular shape.

10. The adjustable scaffold according to claim 1, characterized in that: The crossbar (5) is connected to a storage platform (10).

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