Safety lifting device for building construction

Abstract

The utility model discloses a safety lifting device for building construction. The safety lifting device comprises a base, a stabilizing mechanism and a lifting mechanism. Avoiding openings are formed in the four corners of the upper surface of the base, and wheels are fixedly connected to the four corners of the lower surface of the base; the stabilizing mechanism comprises a top cover, a rack plate, a gear, shells and sliding columns, the shells are connected to the four corners of the upper surface of the base through bolts, the top cover is connected to the upper ends of the shells through bolts, and the sliding columns which are evenly distributed are fixedly connected between the top cover and the interior of the adjacent shell; fixing seats are slidably connected between the exteriors of the sliding columns in the same shell, rack plates are fixedly connected to the sides, away from the sliding columns, of the fixing seats, and the lower ends of the rack plates penetrate through the adjacent receding openings. Accidents caused by rotation of the wheels during construction are avoided, meanwhile, the base is kept horizontal, and the stability of the lifting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety lifting devices for construction, in particular to a safety lifting device for building construction. Background Art

[0002] Construction refers to the production activities in the implementation stage of engineering construction, which is the construction process of various buildings. It can also be said that it is the process of turning various lines on the design drawings into physical objects at designated locations. This construction process is carried out by workers of various trades in a limited time and a certain space. Hundreds of materials are supplied and various mechanical equipment are operated.

[0003] When carrying out construction at low heights, workers need to use lifting devices or escalators to assist in the work. However, since the construction ground has not been subsequently repaired and the ground is uneven, the wheels of the lifting device may rotate during construction, causing injuries to personnel. In addition, due to the uneven ground, both the lifting device and the escalator have the risk of tipping over. For this reason, we propose a safe lifting device for construction. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a safe lifting device for construction. The base is lifted up by a stabilizing mechanism to make the wheels leave the ground, thereby preventing the wheels from rotating during construction and causing accidents. At the same time, the base is kept level, thereby improving the stability of the lifting device, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe lifting device for construction, comprising a base, a stabilizing mechanism and a lifting mechanism;

[0006] Base: The four corners of the upper surface are provided with avoidance openings, and the four corners of the lower surface of the base are fixedly connected with wheels;

[0007] Stabilizing mechanism: It includes a top cover, a rack plate, a gear, a housing and a sliding column. The housing is connected to the four corners of the upper surface of the base by bolts respectively. The upper end of the housing is connected to the top cover by bolts. The top cover and the interior of the adjacent housing are fixedly connected with uniformly distributed sliding columns. The exteriors of the sliding columns inside the same housing are slidably connected with a fixed seat. The side of the fixed seat away from the sliding column is fixedly connected with a rack plate. The lower end of the rack plate passes through the adjacent avoidance opening. The interior of the housing is rotatably connected with a gear through a rotating shaft. The gear is meshed with the adjacent rack plate.

[0008] Lifting mechanism: It is arranged on the upper surface of the base. The base is lifted up by the stabilizing mechanism to make the wheels leave the ground, avoiding accidents caused by the rotation of the wheels during construction. At the same time, the base is kept level to improve the stability of the lifting device.

[0009] Furthermore, the stabilizing mechanism also includes a worm gear seat, a worm, a worm wheel and an adjusting cylinder. The relative inner side surfaces of the front and rear sides of the outer shell are provided with worm gear seats, and the outer side of the rotating shaft at one end close to the adjacent worm gear seat is fixedly sleeved with a worm wheel. The worm wheels are respectively located inside adjacent worm gear seats, and the ends of the worm gear seats away from the adjacent outer shells are connected to protective covers by bolts. Worms are rotatably connected between the front and rear inner walls of the worm gear seat, and the worms are respectively meshed with adjacent worm wheels. The outer sides of the worms on the left and right sides that are away from the outer ends are fixedly connected with adjusting cylinders, and the adjusting cylinders are respectively located on the outer sides of adjacent worm gear seats to realize the lifting and lowering of the rack plate.

[0010] Furthermore, the upper surface of the base is connected to a mounting seat by bolts, and a battery is placed inside the mounting seat to provide electricity.

[0011] Furthermore, the lifting mechanism includes a support plate, a slide rail, an electric push cylinder and a connecting rod. The front and rear sides of the upper surface of the base are rotatably connected to the connecting rods that are symmetrically distributed on the left and right through a rotating seat. The middle part of the upper surface of the base is fixedly connected to the electric push cylinder, and the upper end of the telescopic end of the electric push cylinder is fixedly connected to the support plate. The left and right sides of the lower surface of the support plate are fixedly connected to the evenly distributed slide rails, and the upper ends of the connecting rods are respectively slidably connected to the inside of adjacent slide rails to achieve lifting.

[0012] Furthermore, a protective frame is provided on the edge of the upper surface of the support plate, a side door is provided on the right side of the protective frame, and a control switch is fixedly connected to the upper end of the protective frame. The input end of the control switch is electrically connected to the output end of the battery, and the input end of the electric push cylinder is electrically connected to the output end of the control switch. This provides protection during construction and facilitates the control of the lifting and lowering of the support plate.

[0013] Furthermore, a side ladder is fixedly connected to the right side of the upper surface of the support plate, and the side ladder is located at the lower end of the side door to facilitate personnel to climb up to the upper surface of the support plate.

[0014] Furthermore, it also includes a counterweight seat, which is connected to the left and right sides of the upper surface of the base by bolts respectively, and counterweight blocks are placed inside the counterweight seat to lower the center of gravity of the device.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the safety lifting device for building construction has the following advantages:

[0016] Insert a cylinder or a steel pipe into the interior of the adjusting cylinder and rotate the adjusting cylinder. The worm rotates, driving the meshing worm wheel and the adjacent rotating shaft to rotate. The rotating shaft drives the adjacent gear to rotate. The gear drives the meshing rack plate and the fixed seat to slide downward on the adjacent sliding column surface. The lower end of the rack plate passes through the adjacent avoidance opening. The lower end of the rack plate contacts the ground until the wheel leaves the ground. The worm and the worm wheel drive the self-locking property, and there is no need to add additional self-locking components, which saves costs. The other three stabilizing mechanisms are adjusted in the same way. Then the spirit level is placed on the upper surface of the base, and the lower end of the rack plate is adjusted again from the lower surface of the base to keep the base level. During the construction process, the base is lifted up to make the wheel leave the ground to avoid accidents caused by the rotation of the wheel during construction. At the same time, the base is kept level to improve the stability of the lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 It is a cross-sectional structural schematic diagram of the stabilizing mechanism of the utility model.

[0020] In the figure: 1 base, 2 stabilizing mechanism, 21 top cover, 22 rack plate, 23 gear, 24 worm gear seat, 25 worm, 26 worm wheel, 27 adjusting cylinder, 28 housing, 29 slide column, 3 mounting seat, 4 protection frame, 5 side ladder, 6 battery, 7 counterweight seat, 8 counterweight block, 9 lifting mechanism, 91 support plate, 92 slide rail, 93 electric push cylinder, 94 connecting rod, 10 wheel, 11 control switch. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 , this embodiment provides a technical solution: a construction safety lifting device, including a base 1, a stabilizing mechanism 2 and a lifting mechanism 9;

[0023] Base 1: The four corners of the upper surface are provided with avoidance openings, the four corners of the lower surface of the base 1 are fixedly connected with wheels 10, the upper surface of the base 1 is connected with a mounting seat 3 by bolts, and a battery 6 is placed inside the mounting seat 3;

[0024] Stabilizing mechanism 2: It includes a top cover 21, a rack plate 22, a gear 23, a housing 28 and a slide column 29. The housing 28 is connected to the four corners of the upper surface of the base 1 by bolts. The upper end of the housing 28 is connected to the top cover 21 by bolts. The top cover 21 and the inner part of the adjacent housing 28 are fixedly connected with uniformly distributed slide columns 29. The outer parts of the slide columns 29 in the same housing 28 are slidably connected with a fixed seat. The side of the fixed seat away from the slide column 29 is fixedly connected with the rack plate 22. The lower end of the rack plate 22 is fixedly connected to the rack plate 22. Through the adjacent avoidance openings, the interior of the housing 28 is rotatably connected to a gear 23 through a rotating shaft, and the gear 23 is meshed with the adjacent rack plate 22. The stabilizing mechanism 2 also includes a worm gear seat 24, a worm 25, a worm wheel 26 and an adjusting cylinder 27. The opposite inner side surfaces of the housing 28 on the same side of the front and rear are provided with a worm gear seat 24, and the outer side of the rotating shaft close to the adjacent worm gear seat 24 is fixedly sleeved with a worm wheel 26. The worm wheel 26 is respectively located in the interior of the adjacent worm gear seat 24, and the end of the worm gear seat 24 away from the adjacent housing 28 is connected to the worm gear seat 24. A protective cover is connected by bolts. A worm 25 is rotatably connected between the inner walls of the front and rear sides of the worm gear seat 24. The worm 25 is respectively meshed with the adjacent worm gear 26. The outer sides of the worm 25 on the left and right sides that are away from the outer ends are fixedly connected with an adjustment cylinder 27. The adjustment cylinder 27 is respectively located on the outer sides of the adjacent worm gear seats 24. The cylinder or steel pipe is inserted into the inside of the adjustment cylinder 27 and the adjustment cylinder 27 is rotated. The worm 25 rotates, driving the meshed worm gear 26 and the adjacent shaft to rotate. The shaft drives the adjacent gear 23 to rotate, and the gear 2 3 drives the meshing rack plate 22 and the fixing seat to slide downward on the surface of the adjacent sliding column 29, and the lower end of the rack plate 22 passes through the adjacent avoidance opening. The lower end of the rack plate 22 contacts the ground until the wheel 10 leaves the ground, and the worm 25 and the worm wheel 26 drive the self-locking property, and no additional self-locking components are required, which saves costs. The other three stabilizing mechanisms 2 are adjusted in the same way, and then the level is placed on the upper surface of the base 1, and the lower end of the rack plate 22 is adjusted again from the lower surface of the base 1 to keep the base 1 level;

[0025] Lifting mechanism 9: It is arranged on the upper surface of the base 1. The lifting mechanism 9 includes a support plate 91, a slide rail 92, an electric push cylinder 93 and a connecting rod 94. The front and rear sides of the upper surface of the base 1 are rotatably connected to the connecting rods 94 symmetrically distributed on the left and right through a rotating seat. The middle part of the upper surface of the base 1 is fixedly connected to the electric push cylinder 93. The upper end of the telescopic end of the electric push cylinder 93 is fixedly connected to the support plate 91. The left and right sides of the lower surface of the support plate 91 are fixedly connected to the evenly distributed slide rails 92. The upper ends of the connecting rods 94 are respectively slidably connected to the inside of the adjacent slide rails 92. A protective frame 4 is arranged on the edge of the upper surface of the support plate 91. A side door is arranged on the right side of the protective frame 4. The upper end of the protective frame 4 is fixedly connected to a control switch. Turn on switch 11, the input end of the control switch 11 is electrically connected to the output end of the battery 6, the input end of the electric push cylinder 93 is electrically connected to the output end of the control switch 11, and a side ladder 5 is fixedly connected to the right side of the upper surface of the support plate 91, and the side ladder 5 is located at the lower end of the side door. After the adjustment is completed, the construction personnel open the side door, enter the upper surface of the support plate 91 through the side ladder 5, and then close the side door, and turn on the electric push cylinder 93 through the control switch 11. The telescopic end of the electric push cylinder 93 pushes the support plate 91 to move upward, and the upper ends of the connecting rods 94 slide toward the other ends of the slide rails 92 respectively inside the adjacent slide rails 92 while moving upward, and the lower ends of the connecting rods 94 rotate at the same time, so that the rising process of the support plate 91 is more stable.

[0026] Among them: it also includes a counterweight seat 7, which is connected to the left and right sides of the upper surface of the base 1 by bolts respectively, and a counterweight block 8 is placed inside the counterweight seat 7 to reduce the risk of rollover.

[0027] The working principle of a construction safety lifting device provided by the utility model is as follows: when construction needs to be carried out at a high position during construction, the construction safety lifting device is pushed to the lower end of the construction position, and the cylinder or steel pipe is inserted into the inside of the adjusting cylinder 27 to rotate the adjusting cylinder 27, and the worm 25 rotates, driving the meshing worm wheel 26 and the adjacent rotating shaft to rotate, and the rotating shaft drives the adjacent gear 23 to rotate, and the gear 23 drives the meshing rack plate 22 and the fixed seat to slide downward on the surface of the adjacent sliding column 29, and the lower end of the rack plate 22 passes through the adjacent avoidance opening, and the lower end of the rack plate 22 contacts the ground until the wheel 10 leaves the ground, and the worm 25 and the worm wheel 26 drive the self-locking property, and there is no need to add an additional self-locking component, which saves cost, and the other three stabilizing mechanisms 2 are the same The construction personnel then adjust the level and then place the level on the upper surface of the base 1, and adjust the lower end of the rack plate 22 from the lower surface of the base 1 again to keep the base 1 level. After the adjustment is completed, the construction personnel open the side door, enter the upper surface of the support plate 91 through the side ladder 5, and then close the side door. The electric push cylinder 93 is turned on by the control switch 11. The telescopic end of the electric push cylinder 93 pushes the support plate 91 to move upward, and the upper ends of the connecting rods 94 slide toward the other ends of the slide rails 92 respectively inside the adjacent slide rails 92 while moving upward, and the lower ends of the connecting rods 94 rotate at the same time, so that the rising process of the support plate 91 is more stable. After the support plate 91 is stable, the construction personnel carry out construction, and the counterweight block 8 inside the counterweight seat 7 makes the center of the device lower to reduce the risk of rollover.

[0028] It is worth noting that the electric push cylinder 93 disclosed in the above embodiment can be a TJED120 multi-stage electric cylinder, and the control switch 11 is provided with a switch button corresponding to the electric push cylinder 93 for controlling its switch operation.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A safety lifting device for construction, characterized in that: It comprises a base (1), a stabilizing mechanism (2) and a lifting mechanism (9); The base (1) has escape openings at four corners of its upper surface, and wheels (10) are fixedly connected to four corners of the lower surface of the base (1); The stabilizing mechanism (2) comprises a top cover (21), a rack plate (22), a gear (23), a housing (28) and a sliding column (29), wherein the housing (28) is respectively connected to the four corners of the upper surface of the base (1) by bolts, the upper end of the housing (28) is connected to the top cover (21) by bolts, the top cover (21) and the interior of the adjacent housing (28) are fixedly connected with uniformly distributed sliding columns (29), the interior of the sliding columns (29) of the same housing (28) are slidably connected with a fixed seat, the side of the fixed seat away from the sliding column (29) is fixedly connected with a rack plate (22), the lower end of the rack plate (22) passes through the adjacent avoidance opening, the interior of the housing (28) is rotatably connected with a gear (23) by a rotating shaft, and the gear (23) is meshed with the adjacent rack plate (22); Lifting mechanism (9): It is arranged on the upper surface of the base (1).

2. A construction safety lifting device according to claim 1, characterized in that: The stabilizing mechanism (2) further comprises a worm gear seat (24), a worm (25), a worm wheel (26) and an adjusting cylinder (27); the opposite inner side surfaces of the front and rear same side housings (28) are each provided with a worm gear seat (24); the outer side of one end of the rotating shaft close to the adjacent worm gear seat (24) is each fixedly sleeved with a worm wheel (26); the worm wheel (26) is respectively located inside the adjacent worm gear seat (24); the end of the worm gear seat (24) away from the adjacent housing (28) is each connected to a protective cover by bolts; the front and rear inner walls of the worm gear seat (24) are both rotatably connected with a worm gear (25); the worm gear (25) is respectively meshed with the adjacent worm wheel (26); the outer sides of the opposite outer ends of the worm gears (25) on the left and right same sides are each fixedly connected with an adjusting cylinder (27); the adjusting cylinder (27) is respectively located outside the adjacent worm gear seats (24).

3. A construction safety lifting device according to claim 1, characterized in that: The upper surface of the base (1) is connected to a mounting seat (3) via bolts, and a storage battery (6) is placed inside the mounting seat (3).

4. A construction safety lifting device according to claim 3, characterized in that: The lifting mechanism (9) comprises a support plate (91), a slide rail (92), an electric push cylinder (93) and a connecting rod (94); the front and rear sides of the upper surface of the base (1) are rotatably connected to the connecting rods (94) symmetrically distributed on the left and right through a rotating seat; the middle part of the upper surface of the base (1) is fixedly connected to the electric push cylinder (93); the upper end of the telescopic end of the electric push cylinder (93) is fixedly connected to the support plate (91); the left and right sides of the lower surface of the support plate (91) are fixedly connected to the slide rails (92) evenly distributed; the upper ends of the connecting rods (94) are respectively slidably connected to the inside of adjacent slide rails (92).

5. A construction safety lifting device according to claim 4, characterized in that: A protective frame (4) is provided on the edge of the upper surface of the support plate (91), a side door is provided on the right side of the protective frame (4), a control switch (11) is fixedly connected to the upper end of the protective frame (4), an input end of the control switch (11) is electrically connected to an output end of a storage battery (6), and an input end of the electric push cylinder (93) is electrically connected to an output end of the control switch (11).

6. A construction safety lifting device according to claim 5, characterized in that: A side ladder (5) is fixedly connected to the right side of the upper surface of the support plate (91), and the side ladder (5) is located at the lower end of the side door.

7. A construction safety lifting device according to claim 1, characterized in that: It also includes a counterweight seat (7), which is connected to the left and right sides of the upper surface of the base (1) by bolts, and a counterweight block (8) is placed inside the counterweight seat (7).

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