Adjustable scaffold based on constructional engineering safety protection

Abstract

The invention relates to the field of constructional engineering, in particular to an adjustable scaffold based on constructional engineering safety protection. The adjustable scaffold based on constructional engineering safety protection comprises a bottom plate and hydraulic cylinders, and the two hydraulic cylinders are symmetrically installed on the two sides of the upper portion of the bottom plate. Through cooperation of the lifting mechanism and the reinforcing mechanism, a constructor pulls a wedge-shaped block, an elastic piece I is compressed, then a supporting plate is pulled to drive a clamping rod to rotate till a connecting rod makes contact with the clamping block and is inserted into the clamping block, the supporting plate is fixed, the wedge-shaped block is loosened, the wedge-shaped block is reset under the action of the elastic piece I, and the supporting frame is reinforced; a constructor climbs to the pedal frame through the crawling ladder and starts the first double-shaft motor and the second double-shaft motor, the first double-shaft motor drives the first winding drum to rotate and pulls the first steel wire rope to be wound so as to drive the pedal frame to ascend, and meanwhile the second double-shaft motor drives the second winding drum to reversely rotate and releases the second steel wire rope so as to ascend along with the movable frame. And high-altitude operation of constructors is facilitated.

Description

Technical Field

[0001] The invention relates to the field of construction engineering, and in particular to an adjustable scaffold based on safety protection of construction engineering. Background Art

[0002] Scaffolding refers to a temporary platform frame used in construction, maintenance or other aerial operations. It provides workers with a safe working surface, supports the stacking of materials, and facilitates various construction operations such as wall building, painting, and pipeline installation.

[0003] During the construction process, if high-altitude work is required, the construction workers will move the scaffolding to the site where the high-altitude work is required, and then unfold the left and right sides of the bracket in turn, and fix the scissor-shaped fixing rod with bolts. The support plates for standing people are embedded in the grooves on the brackets on both sides to ensure a stable connection between the support plates and the brackets. However, in the process of installing the fixing rods, multiple bolts need to be tightened manually, and this process takes a lot of time. In addition, if the bolts are not tightened well, the fixing rods may become loose during the use of the scaffolding, which will affect the stability of the scaffolding and pose a safety hazard.

[0004] In view of the above problems, it is necessary to design an adjustable scaffold based on construction engineering safety protection. Summary of the invention

[0005] In order to overcome the disadvantage that if the bolts are not tightened properly, the fixing rods may become loose, the present invention provides an adjustable scaffold based on construction engineering safety protection.

[0006] The technical solution of the present invention is: an adjustable scaffolding based on safety protection of construction projects, including a base plate, a hydraulic cylinder, a bearing seat, a support frame, a ladder, a step frame, a lifting mechanism and a reinforcement mechanism. Two groups of hydraulic cylinders are symmetrically installed on both sides of the upper part of the base plate, and two groups of bearing seats are symmetrically installed on both sides of the upper part of the base plate. Vertical slide grooves are symmetrically opened on the inner side of the support frame. The lifting and retracting rods of the two hydraulic cylinders in the same group slide in cooperation with the vertical slide grooves of the support frame through slide rods. A ladder is installed on the right part of the support frame on the right side, and a step frame is provided between the two support frames. A lifting mechanism for lifting and lowering a mobile frame is provided on the upper part of the base plate, and a reinforcement mechanism for reinforcing the support frames is provided on the outer sides of the two support frames.

[0007] Optionally, the lifting mechanism includes a support seat, a first double-axis motor, a first drum, a rope guide I, a rope guide II, a moving frame, a first steel wire rope, a rope guide III, a pulley guide, a second double-axis motor, a second drum and a second steel wire rope, a support seat is symmetrically installed on the upper part of the bottom plate, a first double-axis motor is installed on the upper part of the support seat, both sides of the output shaft of the first double-axis motor are connected to the first drum, a first steel wire rope is wound around the first drum, a rope guide I is symmetrically installed on the lower part of the support frame, and a Rope guide II, rope guide II is located outside rope guide I, and mobile frames are slidably connected inside the two support frames. Rope guide III is symmetrically installed on the upper side of the support frame, and a pulley guide is installed on the lower side of the mobile frame. The first steel wire rope passes around rope guide I, rope guide III and pulley guide in sequence, and second dual-axis motors are symmetrically installed on both sides of the upper part of the bottom plate. Second drums are connected to the output shafts on both sides of the second dual-axis motor, and the second steel wire rope is wound around the second drum. The second steel wire rope passes around rope guide II and passes through the support frame and is connected to the mobile frame.

[0008] Optionally, the reinforcement mechanism includes a support plate, a fixed block, a clamping rod, a clamping block and a limit assembly. Two groups of support plates are symmetrically placed on both sides of the two support frames, each group includes two support plates, and the two groups of support plates are placed on both sides of the support frames in a cross-symmetrical manner. A through hole matching the fixed block is opened on the support plate, and the fixed block is inserted into the through hole. A clamping rod is inserted inside the fixed block, and a sliding groove is opened on the fixed block. The clamping rod is clamped and matched with the support plate. The clamping blocks are symmetrically connected on both sides of the two support frames, a groove is provided on one side of the support plate close to the clamping block, a connecting rod is provided inside the groove, and the connecting rod is plug-in-matched with the clamping block. Limiting assemblies are symmetrically arranged on both sides of the outside of the two support frames.

[0009] Optionally, the limiting assembly includes a connecting frame, a wedge block and an elastic member I. The connecting frames are symmetrically connected to both sides of the support frame, the wedge block is slidably connected to the connecting frame, and the elastic member I is arranged between the wedge block and the connecting frame.

[0010] Optionally, a recovery mechanism is also included. The recovery mechanism is arranged on the outer sides of the two mobile frames. The recovery mechanism includes a rack, a one-way gear, a special-shaped rod and a torsion spring. A longitudinal slot is opened on the side of the support frame. The rack is installed on the mobile frame, and the rack is slidably matched with the longitudinal slot on the side of the support frame. A one-way gear is arranged on the end of the clamping rod away from the fixed block. The one-way gear is meshed with the rack. The two racks are connected to each other on one side with a special-shaped rod, and a torsion spring is arranged between the inner side of the one-way gear and the fixed block.

[0011] Optionally, a self-locking mechanism is also included. The self-locking mechanism is arranged on the upper part of the pedal frame, and the self-locking mechanism includes a lock box, a knob, a screw, a slider, a guide rod I, a guide rod II, an extrusion block and an elastic member II. Lock boxes are symmetrically arranged on both sides of the upper part of the pedal frame, and a screw is rotatably connected inside the lock box. A knob that cooperates with the screw is installed in the middle of the screw. The lock box is connected to a guide rod I, which is located on the upper side of the screw. A slider is arranged on the screw through a thread, and the slider is slidably matched with the guide rod I. The lock box is symmetrically connected to a guide rod II from top to bottom, and two guide rods II are located on the lower side of the screw. An extrusion block is slidably connected between the two guide rods II, and the slider is in contact and cooperate with the extrusion block, and an elastic member II is connected between the two extrusion blocks.

[0012] Optionally, a protective net is also included, and the periphery of the step frame is provided with a protective net.

[0013] Optionally, a support platform is further included, and the upper part of the bottom plate is provided with the support platform, and the surface of the support platform has an uneven structure.

[0014] The present invention has the following advantages: 1. Through the cooperation of the lifting mechanism and the reinforcement mechanism, the construction personnel pull the wedge block, the elastic member I is compressed, and then the support plate is pulled to drive the clamping rod to rotate until the connecting rod contacts the clamping block and is inserted into it to fix the support plate, loosen the wedge block, and the wedge block is reset under the action of the elastic member I to reinforce the support frame. The construction personnel climb up to the step frame through the ladder and start the first double-axis motor and the second double-axis motor. The first double-axis motor drives the first drum to rotate, pulls the first steel wire rope to reel, and then drives the step frame to rise. At the same time, the second double-axis motor drives the second drum to rotate in the opposite direction, releases the second steel wire rope, and rises with the mobile frame, which is convenient for construction personnel to perform high-altitude operations.

[0015] 2. The present invention arranges a recovery mechanism. During the movement of the mobile frame, the mobile frame drives the rack and the special-shaped rod to move. When the special-shaped rod moves to a suitable position and contacts the wedge block, the wedge block moves under the action of an external force, the elastic member I is compressed, the rack contacts the one-way gear and drives it to rotate in the opposite direction, thereby causing the clamping rod to rotate in the opposite direction, driving the support plate to rotate in the opposite direction along the slide groove of the fixed block, until the support plate rotates to a vertical state and disengages from the clamping block. At this time, the special-shaped rod is no longer in contact with the wedge block, and the wedge block moves inward to the initial position under the resetting action of the elastic member I, thereby retracting and fixing the support plate.

[0016] 3. The present invention provides a self-locking mechanism. When the construction personnel place the step frame between the two movable frames for stable placement, they turn the knob to drive the screw to rotate. The screw drives the slider to move along the guide rod I. The slider moves and contacts the extrusion block, prompting the slider to push the extrusion block to move along the guide rod II until the protruding part of the extrusion block enters the slot of the lock box, thereby fixing the lock box on the step frame to prevent the lock box from moving or shaking on the step frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of components such as the bearing seat, support frame and ladder of the present invention.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the hydraulic cylinder and the bearing seat of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the lifting mechanism of the present invention.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the first dual-axis motor, the first drum, the rope guide I and other components of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of components such as the movable frame, the first steel wire rope and the rope guide III of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the reinforcement mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of part A of the present invention.

[0025] Fig. 9 It is a schematic diagram of the enlarged three-dimensional structure of part A of the present invention.

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of part B of the present invention.

[0027] Fig.11 It is a schematic diagram of the enlarged three-dimensional structure of part B of the present invention.

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the reinforcement mechanism and the recovery mechanism of the present invention.

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the pedal frame, lock box and other parts of the present invention.

[0030] Fig.14 It is a three-dimensional structural schematic diagram of the self-locking mechanism of the present invention.

[0031] The markings of the components in the accompanying drawings are as follows: 1, base plate, 101, support platform, 2, hydraulic cylinder, 3, bearing seat, 4, support frame, 5, ladder, 6, step frame, 7, lifting mechanism, 71, support seat, 72, first double-axis motor, 73, first drum, 74, rope guide I, 741, rope guide II, 75, mobile frame, 751, first wire rope, 76, rope guide III, 761, pulley guide, 77, second double-axis motor, 771, second drum, 772, second wire rope, 8. Reinforcement mechanism, 81. Support plate, 82. Fixed block, 83. Clamp rod, 84. Clamp block, 85. Connecting frame, 86. Wedge block, 87. Elastic member I, 9. Recovery mechanism, 91. Rack, 92. One-way gear, 93. Special-shaped rod, 94. Torsion spring, 11. Self-locking mechanism, 111. Lock box, 112. Knob, 113. Screw rod, 1131. Slider, 1132. Guide rod I, 114. Guide rod II, 115. Extrusion block, 116. Elastic member II, 12. Protective net. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment: An adjustable scaffolding based on construction engineering safety protection, such as Figure 1-Figure 13 As shown, it includes a base plate 1, a hydraulic cylinder 2, a bearing seat 3, a support frame 4, a ladder 5, a pedal frame 6, a lifting mechanism 7 and a reinforcement mechanism 8. Two groups of hydraulic cylinders 2 are symmetrically installed on both sides of the upper part of the base plate 1. When the support frame 4 is folding, the hydraulic cylinder 2 can assist the support frame 4 to fold. Two groups of bearing seats 3 are symmetrically installed on both sides of the upper part of the base plate 1. Vertical slide grooves are symmetrically opened on the inner side of the support frame 4. The lifting and retracting rods of the two hydraulic cylinders 2 in the same group slide in cooperation with the vertical slide grooves of the support frame 4 through slide rods. The bearing seat 3 provides a stable support point for the support frame 4 to ensure that the support frame 4 can rotate smoothly during the rotation process. A ladder 5 is installed on the right part of the right support frame 4, which is convenient for construction personnel to climb into the pedal frame 6 through the ladder 5. A pedal frame 6 is arranged between the two support frames 4. A lifting mechanism 7 for lifting and lowering the mobile frame 75 is arranged on the upper part of the base plate 1, and a reinforcement mechanism 8 for reinforcing the support frame 4 is arranged on the outer sides of the two support frames 4.

[0034] like Figure 4-Figure 6As shown, the lifting mechanism 7 includes a support seat 71, a first double-axis motor 72, a first drum 73, a rope guide I 74, a rope guide II 741, a moving frame 75, a first steel wire rope 751, a rope guide III 76, a pulley guide 761, a second double-axis motor 77, a second drum 771 and a second steel wire rope 772. The support seat 71 is symmetrically installed on the upper part of the bottom plate 1 for placing the first double-axis motor 72. The first double-axis motor 72 is installed on the upper part of the support seat 71. The output shafts on both sides of the first dual-axis motor 72 are connected to the first drum 73 for winding and releasing the first steel wire rope 751, and the first steel wire rope 751 is wound on the first drum 73. A rope guide I 74 is symmetrically arranged at the lower part of the support frame 4, and a rope guide II 741 is symmetrically arranged at the lower part of the support frame 4. The rope guide II 741 is located on the outside of the rope guide I 74. The rope guide I 74 is used to guide the first steel wire rope 751 to move along a predetermined path, and the rope guide II 741 is used to guide the second steel wire rope 772 to move along a predetermined path. The rope guide I 74 and the rope guide II 741 can ensure that the first steel wire rope 751 and the second steel wire rope 772 can move smoothly according to the designed route to avoid the first steel wire rope 751 and the second steel wire rope 772 from deflecting or twisting during the movement. The two support frames 4 are slidably connected to the moving frame 75, and the rope guide III 76 is symmetrically installed on the upper side of the support frame 4, and a pulley guide is installed on the lower side of the moving frame 75. Device 761, the first steel wire rope 751 passes around the rope guide device I 74, the rope guide device III 76 and the pulley guide 761 in sequence, and the second double-axis motor 77 is symmetrically installed on both sides of the upper part of the base plate 1, and the output shafts on both sides of the second double-axis motor 77 are connected to the second drum 771 for winding and releasing the second steel wire rope 772. The second steel wire rope 772 is wound around the second drum 771, and the second steel wire rope 772 passes around the rope guide device II 741 and passes through the support frame 4 and is connected to the movable frame 75.

[0035] like Figure 7-Figure 11 As shown, the reinforcement mechanism 8 includes a support plate 81, a fixing block 82, a clamping rod 83, a clamping block 84 and a limit assembly. Two groups of support plates 81 are symmetrically placed on both sides of the two support frames 4, each group includes two support plates 81, and the two groups of support plates 81 are placed on both sides of the support frame 4 in a cross-symmetrical manner to fix the two support frames 4 to prevent construction personnel from falling due to the shaking of the support frame 4 during high-altitude operations. A through hole compatible with the fixing block 82 is opened on the support plate 81, and the fixing block 82 is inserted into the through hole. A clamping rod 83 is inserted inside the fixing block 82, and a slide groove is opened on the fixing block 82. The clamping rod 83 passes through the slide groove and contacts and cooperates with the support plate 81. The two sides of the two support frames 4 are symmetrically connected with the clamping block 84, and a groove is provided on the side of the support plate 81 close to the clamping block 84. A connecting rod is provided inside the groove. The connecting rod and the clamping block 84 are plug-in matched, and the connecting rod is used to fix the cross-placed support plates 81. Limiting assemblies are symmetrically arranged on both sides of the outside of the two support frames 4.

[0036] like Figure 7 , Fig.10 , Fig.11 and Fig.12 As shown, the limiting assembly includes a connecting frame 85, a wedge block 86 and an elastic member Ⅰ87. The connecting frames 85 are symmetrically connected to both sides of the support frame 4. The connecting frames 85 are slidably connected to the wedge blocks 86. The wedge blocks 86 are used to fix and release the support plate 81. An elastic member Ⅰ87 is connected between the wedge block 86 and the connecting frame 85. The elastic member Ⅰ87 is a compression spring.

[0037] like Figure 8-Figure 12 As shown, a recovery mechanism 9 is also included. A recovery mechanism 9 is arranged on the outer side of the two mobile frames 75. The recovery mechanism 9 includes a rack 91, a one-way gear 92, a special-shaped rod 93 and a torsion spring 94. Longitudinal slots are opened on the sides of the two support frames 4. The rack 91 is installed on the mobile frame 75, and the rack 91 slides with the longitudinal slot on the side of the support frame 4. A one-way gear 92 is arranged at one end of the clamping rod 83 away from the fixed block 82. The one-way gear 92 is meshed with the rack 91. The one-way gear 92 can only rotate in one direction. Special-shaped rods 93 are arranged on the opposite sides of the two racks 91, so that the movement of the special-shaped rod 93 will indirectly control the rotation of the support plate through the movement of the wedge block 86. A torsion spring 94 is arranged between the inner side of the one-way gear 92 and the fixed block 82.

[0038] like Fig.13 and Fig.14 As shown, a self-locking mechanism 11 is also included. The self-locking mechanism 11 is arranged on the upper part of the step frame 6. The self-locking mechanism 11 includes a lock box 111, a knob 112, a screw 113, a slider 1131, a guide rod I 1132, a guide rod II 114, an extrusion block 115 and an elastic member II 116. The lock box 111 is symmetrically arranged on the upper part of the step frame 6. The screw 113 is rotatably connected inside the lock box 111. A knob 112 matched with the screw 113 is installed in the middle of the screw 113. By rotating the knob 112, the slider is separated from the extrusion block, so that the extrusion block moves outward under the action of the elastic member, thereby unlocking the lock box. The guide rod I 1 is connected inside the lock box 111. 132, guide rod I 1132 is located on the upper side of the screw rod 113, and a slider 1131 is provided on the screw rod 113 through a thread, and the slider 1131 slides with the guide rod I 1132, and the lock box 111 is symmetrically connected with guide rods II 114 in the upper and lower parts, and the two guide rods II 114 are located on the lower side of the screw rod 113, and an extrusion block 115 is slidably connected between the two guide rods II 114, and the slider 1131 contacts and cooperates with the extrusion block 115, and the extrusion block 115 cooperates with the card slot of the lock box to ensure the safety of the lock box during high-altitude operation and prevent the lock box from accidentally falling off or moving, and an elastic member II 116 is connected between the two extrusion blocks 115, and the elastic member II 116 is a tension spring.

[0039] like Figure 1 and Fig.12 As shown, a protective net 12 is also included. The protective net 12 is arranged on the periphery of the step frame 6. When the construction workers perform high-altitude operations, the protective net 12 can protect the construction workers and prevent them from falling.

[0040] like Figure 2 As shown, a support platform 101 is also included. The support platform 101 is arranged on the upper part of the base plate 1. The surface of the support platform 101 has an uneven structure. The uneven surface of the support platform 101 can increase the friction of the contact surface and prevent the support frame 4 placed on the support platform 101 from sliding or shifting.

[0041] When it is necessary to use the device for aerial work, the construction personnel place the device on the construction site. After the device is placed, because the initial state of the device is a folded state, the construction personnel then pull the support frame 4 to rotate along the bearing seat 3, and the support frame 4 drives all the components thereon to rotate. At the same time, the hydraulic cylinder 2 is started, and the telescopic rod of the hydraulic cylinder 2 gradually extends with the rotation of the support frame 4 until the support frame 4 rotates to a vertical state. Then, the hydraulic cylinder 2 is closed and the support frame 4 is released to assist the support frame 4 to stand firmly. The above operation is repeated so that the other support frame 4 is also propped up. Then, the wedge block 86 is pulled outward, the elastic member I 87 is compressed, and the construction personnel pull the support plate 81 to drive the clamping rod 83 to rotate along the slide groove of the fixed block 82 until the support When the connecting rod in the groove on the other side of the plate 81 contacts the block 84 and is inserted into the block 84 to fix the support plate 81, after loosening the wedge block 86, under the resetting action of the elastic member I87, the wedge block 86 moves to the initial position, and the above operation is repeated so that the remaining support plates 81 are also fixed, thereby reinforcing the two support frames 4. Subsequently, the construction personnel place the step frame 6 between the two movable frames 75, and then place the lock box 111 in the placement groove on the step frame 6. The construction personnel turn the knob 112, thereby driving the screw 113 to rotate, and the screw 113 drives the slider 1131 to move inward along the guide rod I1132. The slider 1131 moves to contact the extrusion block 115 and pushes the extrusion block 115 to move inward along the guide rod II114 , the elastic member II 116 is compressed until the protruding part of the extrusion block 115 enters the slot of the lock box 111, and the knob 112 is no longer rotated, thereby fixing the lock box 111 on the step frame 6, effectively preventing the lock box 111 from moving or shaking on the step frame 6. The construction personnel then climb up the step frame 6 along the ladder 5, and start the first double-axis motor 72 and the second double-axis motor 77 at the same time. The output shafts on both sides of the first double-axis motor 72 drive the two first drums 73 to rotate, and the two first drums 73 rotate to pull the first steel wire rope 751 for winding operation. During the winding process of the first steel wire rope 751, the first steel wire rope 751 moves and retracts along the two rope guides I 74 and the two rope guides III 76 in turn, ensuring that the first steel wire rope 751 correctly moves along the predetermined path The first steel wire rope 751 moves in the radial direction. During the process of retracting the first steel wire rope 751, the first steel wire rope 751 pulls the pulley guide 761 to move upward. The pulley guide 761 drives the moving frame 75 to move upward along the supporting frame 4. The moving frame 75 drives the stepping frame 6 to move upward. At the same time, the output shafts on both sides of the second dual-axis motor 77 drive the two second drums 771 to rotate in the opposite direction, so that the two second steel wire ropes 772 are respectively released from the corresponding second drums 771. During the release of the two second steel wire ropes 772, the two second steel wire ropes 772 move along the two rope guides II 741 and move upward with the moving frame 75. During the movement of the moving frame 75, the moving frame 75 drives the rack 91 and the special-shaped rod 93 to move upward. During the movement of the rack 91,The rack 91 is in contact with the one-way gear 92. Since the one-way gear 92 is only allowed to rotate in one direction, the one-way gear 92 will not rotate at this time. Until the moving frame 75 moves to a suitable height, the first double-axis motor 72 and the second double-axis motor 77 are turned off to facilitate the construction personnel to perform high-altitude operations. When it is necessary to lower the step frame 6, the construction personnel start the first double-axis motor 72 and the second double-axis motor 77 again. The output shaft of the first double-axis motor 72 drives the two first drums 73 to rotate in the opposite direction, so that the first wire rope 751 is released, so that the first wire rope 751 moves and is released along the two rope guides I 74 and the two rope guides III 76 in turn. During the release of the first wire rope 751, the pulley guide 761 is no longer driven by the first wire rope 751 is pulled up, so that under the action of gravity, the pulley guide 761 drives the movable frame 75 and the pedal frame 6 to move downward along the support frame 4, and the second steel wire rope 772 also moves downward accordingly. At the same time, the output shaft of the second double-axis motor 77 drives the two second drums 771 to rotate. During the rotation of the second drum 771, the corresponding second steel wire rope 772 thereon moves and tightens along the rope guide II 741 until the movable frame 75 is lowered to a suitable position, and then the first double-axis motor 72 and the second double-axis motor 77 are turned off. Subsequently, the construction personnel safely descend from the ladder 5 to the ground. During the downward movement of the movable frame 75, the movable frame 75 drives the rack 91 and the special-shaped rod 93 to move downward. When the special-shaped rod 93 moves to a suitable position, the special-shaped rod 93 The shaped rod 93 contacts the wedge block 86 and applies pressure to the wedge block 86, causing the wedge block 86 to move outward, and the elastic member I 87 is compressed again. At the same time, the rack 91 moves to contact the one-way gear 92 and drives the one-way gear 92 to rotate in the opposite direction. The one-way gear 92 drives the clamping rod 83 to rotate in the opposite direction. The clamping rod 83 drives the support plate 81 to rotate in the opposite direction along the slide groove of the fixed block 82, and the torsion spring 94 is deformed. At the same time, the connecting rod in the groove on the other side of the support plate 81 rotates in the opposite direction until it is out of contact with the clamping block 84, until the support plate 81 rotates in the opposite direction to a vertical state. At this time, the shaped rod 93 no longer contacts the wedge block 86, so that the wedge block 86 is no longer compressed. Under the resetting action of the elastic member I 87, the wedge block 86 moves inward to the initial position, and then The wedge block 86 contacts the support plate 81 and fixes the support plate 81. When the device needs to be folded up, the construction personnel rotate the knob 112 in the opposite direction to make the screw rod 113 rotate in the opposite direction. The screw rod 113 drives the slider 1131 to move outward along the guide rod Ⅰ1132 until the slider 1131 moves to the preset position. The knob 112 is stopped. During the movement of the slider 1131, the slider 1131 is separated from the extrusion block 115. Under the reset action of the elastic member Ⅱ116, the extrusion block 115 moves outward along the guide rod Ⅱ114 until the protruding part of the extrusion block 115 moves to the outside of the lock box 111. Then, the lock box 111 can be removed from the step frame 6. Repeat the above operation so that the other lock box 111 can also be removed. Then,Then remove the step frame 6 from between the two moving frames 75, and then pull the support frame 4 to rotate in the opposite direction along the bearing seat 3, and the support frame 4 drives all the components on it to rotate in the opposite direction. At the same time, start the hydraulic cylinder 2 again, and the telescopic rod of the hydraulic cylinder 2 gradually retracts with the rotation of the support frame 4, until the support frame 4 rotates in the opposite direction to the support platform 101, to prevent the support frame 4 placed on the support platform 101 from sliding or shifting, and then close the hydraulic cylinder 2, and then release the support frame 4, and then assist the support frame 4 to fold up, repeat the above operation, so that the other support frame 4 is also folded, which is convenient for placing the device and prevents it from occupying a large space.

[0042] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. An adjustable scaffold based on construction engineering safety protection, characterized in that: The utility model comprises a base plate (1), a hydraulic cylinder (2), a bearing seat (3), a support frame (4), a ladder (5), a step frame (6), a lifting mechanism (7) and a reinforcement mechanism (8). Two groups of hydraulic cylinders (2) are symmetrically installed on both sides of the upper part of the base plate (1). Two groups of bearing seats (3) are symmetrically installed on both sides of the upper part of the base plate (1). A support frame (4) is rotatably connected between the two bearing seats (3) in the same group. Vertical slide grooves are symmetrically opened on the inner side of the support frame (4). The lifting and retracting rods of the two hydraulic cylinders (2) in the same group are slidably matched with the vertical slide grooves of the support frame (4) through slide rods. A ladder (5) is installed on the right part of the right support frame (4). A step frame (6) is arranged between the two support frames (4). A lifting mechanism (7) for lifting and lowering a movable frame (75) is arranged on the upper part of the base plate (1). A reinforcement mechanism (8) for reinforcing the support frame (4) is arranged on the outer sides of the two support frames (4).

2. The adjustable scaffolding based on construction engineering safety protection according to claim 1 is characterized in that: The lifting mechanism (7) comprises a support seat (71), a first double-axis motor (72), a first drum (73), a rope guide I (74), a rope guide II (741), a moving frame (75), a first steel wire rope (751), a rope guide III (76), a pulley guide (761), a second double-axis motor (77), a second drum (771) and a second steel wire rope (772). The support seat (71) is symmetrically installed on the upper part of the bottom plate (1), the first double-axis motor (72) is installed on the upper part of the support seat (71), the output shafts on both sides of the first double-axis motor (72) are connected to the first drum (73), the first steel wire rope (751) is wound around the first drum (73), the rope guide I (74) is symmetrically arranged on the lower part of the support frame (4), and the rope guide is symmetrically arranged on the lower part of the support frame (4). The invention relates to a device II (741), wherein the rope guide II (741) is located outside the rope guide I (74), and the two support frames (4) are both slidably connected with a moving frame (75), and a rope guide III (76) is symmetrically installed on the upper side of the support frame (4) in a front-to-back manner, and a pulley guide (761) is installed on the lower side of the moving frame (75), and the first steel wire rope (751) is passed through the rope guide I (74), the rope guide III (76) and the pulley guide (761) in sequence, and a second double-axis motor (77) is symmetrically installed on both sides of the upper part of the bottom plate (1), and the output shafts on both sides of the second double-axis motor (77) are both connected to the second drum (771), and the second steel wire rope (772) is wound around the second drum (771), and the second steel wire rope (772) is passed through the rope guide II (741) and penetrates the support frame (4) and is connected to the moving frame (75).

3. The adjustable scaffolding based on construction engineering safety protection according to claim 2 is characterized in that: The reinforcement mechanism (8) comprises a support plate (81), a fixing block (82), a clamping rod (83), a clamping block (84) and a limiting assembly. Two groups of support plates (81) are symmetrically arranged on both sides of the two support frames (4), each group comprising two support plates (81). The two groups of support plates (81) are arranged on both sides of the support frame (4) in a cross-symmetrical manner. A through hole matching the fixing block (82) is provided on the support plate (81), the fixing block (82) is inserted into the through hole, a clamping rod (83) is inserted inside the fixing block (82), a sliding groove is provided on the fixing block (82), the clamping rod (83) is clamped and matched with the support plate (81), the clamping blocks (84) are symmetrically connected on both sides of the two support frames (4), a groove is provided on one side of the support plate (81) close to the clamping block (84), a connecting rod is provided inside the groove, the connecting rod is plug-in-matched with the clamping block (84), and the limiting assemblies are symmetrically arranged on both sides of the outside of the two support frames (4).

4. The adjustable scaffolding based on construction engineering safety protection according to claim 3 is characterized in that: The limiting assembly comprises a connecting frame (85), a wedge block (86) and an elastic member I (87). The connecting frames (85) are symmetrically connected to both sides of the support frame (4). The connecting frame (85) is slidably connected to the wedge block (86). The elastic member I (87) is connected between the wedge block (86) and the connecting frame (85).

5. The adjustable scaffolding based on construction engineering safety protection according to claim 4 is characterized in that: The invention also comprises a recovery mechanism (9), the recovery mechanism (9) is arranged outside the two moving frames (75), and the recovery mechanism (9) comprises a rack (91), a one-way gear (92), a special-shaped rod (93) and a torsion spring (94). A longitudinal notch is provided on the side of the support frame (4), a rack (91) is mounted on the movable frame (75), and the rack (91) is slidably matched with the longitudinal notch on the side of the support frame (4), a one-way gear (92) is provided at one end of the clamping rod (83) away from the fixed block (82), the one-way gear (92) is meshed with the rack (91), and the two racks (91) are connected to each other on one side thereof, and a torsion spring (94) is provided between the inner side of the one-way gear (92) and the fixed block (82).

6. The adjustable scaffolding based on construction engineering safety protection according to claim 5 is characterized in that: The invention also comprises a self-locking mechanism (11), wherein the self-locking mechanism (11) is arranged on the upper part of the step frame (6), and the self-locking mechanism (11) comprises a lock box (111), a knob (112), a screw rod (113), a slider (1131), a guide rod I (1132), a guide rod II (114), an extrusion block (115) and an elastic member II (116). The lock boxes (111) are symmetrically arranged on both sides of the upper part of the step frame (6), and the screw rod (113) is rotatably connected inside the lock box (111), and a knob (112) matched with the screw rod (113) is installed in the middle of the screw rod (113), and the lock box (111) is connected inside. A guide rod I (1132) is connected, the guide rod I (1132) is located on the upper side of the screw rod (113), a slider (1131) is arranged on the screw rod (113) through a thread, the slider (1131) and the guide rod I (1132) are slidably matched, a guide rod II (114) is symmetrically connected to the inside of the lock box (111) up and down, the two guide rods II (114) are located on the lower side of the screw rod (113), an extrusion block (115) is slidably connected between the two guide rods II (114), the slider (1131) and the extrusion block (115) are in contact and match, and an elastic member II (116) is connected between the two extrusion blocks (115).

7. The adjustable scaffolding based on construction engineering safety protection according to claim 6 is characterized in that: It also includes a protection net (12), and the periphery of the step frame (6) is provided with the protection net (12).

8. The adjustable scaffolding based on construction engineering safety protection according to claim 7 is characterized in that: It also comprises a support platform (101), the support platform (101) is arranged on the upper part of the bottom plate (1), and the surface of the support platform (101) is in an uneven structure.

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