A movable door type lifting device

Abstract

The utility model belongs to the technical field of hoisting devices, specifically a movable door-type hoisting device, including a bottom plate, a plurality of universal wheels are arranged below the bottom plate, a handle bracket for pushing the bottom plate is arranged on the bottom plate, a supporting column is also arranged vertically on the bottom plate, a crossbeam is arranged horizontally on the top of the supporting column, the crossbeam includes a fixed beam and a telescopic beam, the fixed beam is arranged on the top of the supporting column, the telescopic beam is slidably inserted into the fixed beam, a driving component for driving the telescopic beam to move is arranged on the fixed beam, a first hydraulic telescopic rod is arranged vertically on one end of the telescopic beam passing through the fixed beam, a support plate is arranged at the bottom end of the first hydraulic telescopic rod, the support plate is supported on the ground during hoisting, and the support plate is supported on the bottom plate during storage, and a hoisting component for hoisting equipment is arranged on the fixed beam. The crossbeam of the utility model can be telescopic, thereby reducing the overall volume of the hoisting device, thereby reducing the occupied storage space, and facilitating storage.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting devices, in particular to a movable door type hoisting device. Background Art

[0002] Gantry hangers are relatively common lifting devices, usually used for equipment replacement, overhaul, maintenance and lifting work. However, gantry hangers are generally fixedly installed in specific locations, so the lifting work is relatively limited. Therefore, people have designed movable gantry hangers, which greatly improve the flexibility. However, existing movable gantry hangers are large in size and require a relatively large storage space, which is extremely inconvenient to store. Utility Model Content

[0003] In order to solve the problems in the above-mentioned background technology, the utility model provides a movable door-type lifting device, which reduces the overall volume of the lifting device by providing a telescopic crossbeam, thereby reducing the occupied storage space and facilitating storage.

[0004] The utility model provides a movable door-type lifting device, comprising a base plate, a plurality of universal wheels are arranged below the base plate, a handle bracket for pushing the base plate is arranged on the base plate, a supporting column is also vertically arranged on the base plate, a cross beam is horizontally arranged on the top of the supporting column, the cross beam comprises a fixed beam and a telescopic beam, the fixed beam is arranged on the top of the supporting column, the telescopic beam is slidably inserted into the fixed beam, a driving component for driving the telescopic beam to move is arranged on the fixed beam, a first hydraulic telescopic rod is vertically arranged on one end of the telescopic beam passing through the fixed beam, a supporting plate is arranged at the bottom end of the first hydraulic telescopic rod, the supporting plate is supported on the ground during lifting, and is supported on the base plate during storage, and a lifting component for lifting equipment is arranged on the fixed beam.

[0005] Furthermore, the driving assembly includes a driving motor arranged on the fixed beam, a gear is arranged on the output shaft of the driving motor, a rack is arranged on the telescopic beam along its length direction, and the gear is meshed with the rack.

[0006] Furthermore, the hoisting assembly includes a winch arranged on the base plate, two fixed pulleys are arranged below the fixed beam, the rope of the winch passes around the two fixed pulleys in sequence, and a hook for hoisting is arranged at the end of the rope of the winch.

[0007] Furthermore, the base plate includes a bearing plate and a telescopic plate, the handle bracket and the support column are arranged on the bearing plate, the universal wheel is arranged below the bearing plate and the telescopic plate, the telescopic plate is slidably inserted into the bearing plate, and a locking assembly for locking the telescopic plate is arranged on the bearing plate.

[0008] Furthermore, the locking assembly includes a locking rod, which is vertically slidable and penetrates into the bearing plate. A fixed plate is arranged on the top of the locking rod. A tension spring is arranged between the fixed plate and the bearing plate. The tension spring pulls the fixed plate to move toward the bearing plate. A pull ring is arranged on the fixed plate. A locking hole is opened in the telescopic plate. When the telescopic plate is extended, the locking rod is inserted into the locking hole.

[0009] Furthermore, the universal wheels are all equipped with brakes, and a plurality of electric push rods are arranged below the load-bearing plate, and the electric push rods are in contact with the ground.

[0010] Furthermore, the supporting column is a second hydraulic telescopic rod.

[0011] Furthermore, the support plate is rotatably connected to the bottom end of the first hydraulic telescopic rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) After the lifting is completed, the first hydraulic telescopic rod contracts and drives the support plate to move upward, and then the driving motor drives the telescopic beam to move toward the inside of the fixed beam through the gear and rack, so that the first hydraulic telescopic rod is supported on the telescopic plate, thereby reducing the overall volume of the lifting device and further reducing the occupied storage space, making it easier to store.

[0014] (2) Before lifting, pull the pull ring upwards. The pull ring drives the locking rod upwards through the fixed plate, so that the locking rod is disengaged from the locking hole, and then the telescopic plate is pushed into the load-bearing plate, thereby providing a larger working space for lifting.

[0015] (3) All universal wheels are equipped with brakes. After the lifting device moves to the working area, first step on the brake of the universal wheel to lock the universal wheel, and then push the electric push rod out and press it against the ground, thereby increasing friction and improving the stability of the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a movable door type lifting device;

[0018] Figure 2 is a cross-sectional view of the locking assembly;

[0019] Explanation of the reference numerals in the accompanying drawings: 1. Base plate; 10. Load-bearing plate; 11. Telescopic plate; 12. Locking assembly; 120. Locking rod; 121. Fixed plate; 122. Tension spring; 123. Pull ring; 124. Locking hole; 2. Universal wheel; 3. Electric push rod; 4. Handle bracket; 5. Support column; 50. Second hydraulic telescopic rod; 6. Crossbeam; 60. Fixed beam; 61. Telescopic beam; 62. Drive assembly; 620. Mounting frame; 621. Drive motor; 622. Gear; 623. Rack; 7. First hydraulic telescopic rod; 70. Support plate; 8. Lifting assembly; 80. Winch; 81. Fixed pulley; 82. Hook. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in 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 belong to the protection scope of the utility model.

[0021] The following is combined with Figure 1 To Attachment Figure 2 And specific embodiments describe the present invention in detail.

[0022] Reference Figure 1-2 The utility model provides a movable door type lifting device, including a bottom plate 1, the bottom plate 1 includes a bearing plate 10 and a telescopic plate 11, the telescopic plate 11 is slidably arranged in the bearing plate 10, and a locking assembly 12 for locking the telescopic plate 11 is arranged on the bearing plate 10. In this embodiment, two groups of locking assemblies 12 are provided, and the locking assembly 12 includes a locking rod 120, which is vertically slidably arranged in the bearing plate 10 and fixed at the top of the locking rod 120. A fixing plate 121 is connected, a tension spring 122 is fixedly connected between the fixing plate 121 and the supporting plate 10, a locking rod 120 is inserted in the tension spring 122, the tension spring 122 can pull the fixing plate 121 to move toward the supporting plate 10, a pull ring 123 is fixedly connected to the fixing plate 121, a locking hole 124 is opened in the telescopic plate 11, when the telescopic plate 11 is extended, the locking rod 120 is inserted in the locking hole 124, thereby locking the telescopic plate 11.

[0023] A plurality of universal wheels 2 are installed below the base plate 1. Specifically, universal wheels 2 are installed at the four corners of the carrying plate 10. Two universal wheels 2 are installed below one end of the telescopic plate 11 away from the carrying plate 10. All the universal wheels 2 are equipped with brakes to lock the universal wheels 2. A plurality of electric push rods 3 are also installed on the bottom surface of the carrying plate 10. When the electric push rods 3 are pushed out, they rest against the ground, thereby increasing friction and improving the stability of the carrying plate 10.

[0024] A handle bracket 4 is fixedly connected to the load-bearing plate 10, and the handle bracket 4 is convenient for personnel to push the bottom plate 1, thereby facilitating the transfer of the lifting device; a support column 5 is vertically fixedly connected to the load-bearing plate 10, and a crossbeam 6 is horizontally fixedly connected to the top of the support column 5. In this embodiment, the support column 5 is a second hydraulic telescopic rod 50, so that the height of the crossbeam 6 can be adjusted according to the size of the lifting equipment; the crossbeam 6 includes a fixed beam 60 and a telescopic beam 61, and the fixed beam 60 is fixedly connected to the second hydraulic telescopic rod 50 At the top, the telescopic beam 61 is slidably arranged in the fixed beam 60, and a driving component 62 for driving the telescopic beam 61 to move is arranged on the fixed beam 60. The driving component 62 includes a mounting frame 620, and the mounting frame 620 is fixedly connected to the side wall of the fixed beam 60. A driving motor 621 is installed on the mounting frame 620, and a gear 622 is fixedly connected to the output shaft of the driving motor 621. A rack 623 is fixedly connected to the telescopic beam 61 along its own length direction, and the gear 622 is meshed with the rack 623.

[0025] A first hydraulic telescopic rod 7 is vertically fixedly connected below one end of the telescopic beam 61 away from the fixed beam 60, and a support plate 70 is rotatably connected to the bottom end of the first hydraulic telescopic rod 7. When hoisting, the support plate 70 abuts against the ground. When folding, the support plate 70 abuts against the telescopic plate 11. Since the support plate 70 is rotatably connected, when the supporting ground has a certain slope, the support plate 70 can also rotate at a certain angle and be stably supported on the ground.

[0026] A hoisting assembly 8 for hoisting is also provided on the load-bearing plate 10. The hoisting assembly 8 includes a winch 80, which is installed on the load-bearing plate 10. Two fixed pulleys 81 are fixedly installed on the bottom surface of the fixed beam 60. The rope of the winch 80 passes around the two fixed pulleys 81 in sequence, and a hook 82 is fixedly connected to the end of the rope of the winch 80.

[0027] The implementation principle of a movable gantry lifting device provided by the utility model is as follows: before lifting, the lifting device is first moved to the working area, the brake of the universal wheel 2 is stepped on, the electric push rod 3 is pushed out and pressed against the ground, and then the second hydraulic telescopic rod 50 is extended, and the height of the cross beam 6 is adjusted according to the size of the lifting equipment, and then the driving motor 621 drives the telescopic beam 61 to move away from the fixed beam 60 through the gear 622 and the rack 623, and then the first hydraulic telescopic rod 7 is extended to make the support plate 70 stably abut against the ground, and finally the personnel pulls the pull ring 123, and the pull ring 123 drives the locking rod 120 to move upward through the fixed plate 121. After the locking rod 120 disengages from the locking hole 124, the telescopic plate 11 is pushed toward the inside of the load-bearing plate 10 to provide a working space for the lifting work.

[0028] After the hoisting work is completed, the telescopic plate 11 is pulled out, and the locking rod 120 is inserted into the locking hole 124 under the action of the tension spring 122, thereby locking the telescopic plate 11, and then the first hydraulic telescopic rod 7 is contracted and drives the support plate 70 to move upward, and the driving motor 621 drives the telescopic beam 61 to be retracted into the fixed beam 60, and the support plate 70 is supported on the telescopic plate 11, and then the brake of the universal wheel 2 is released and the electric push rod 3 is retracted, and the hoisting device is pushed away. The hoisting device of this embodiment has a small overall volume, which can reduce the storage space occupied and is more convenient for storage.

[0029] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A movable door type lifting device, characterized in that: The invention comprises a base plate, a plurality of universal wheels are arranged below the base plate, a handle bracket for pushing the base plate is arranged on the base plate, a support column is also arranged vertically on the base plate, a cross beam is arranged horizontally on the top of the support column, the cross beam comprises a fixed beam and a telescopic beam, the fixed beam is arranged on the top of the support column, the telescopic beam is slidably passed through the fixed beam, a driving component for driving the telescopic beam to move is arranged on the fixed beam, a first hydraulic telescopic rod is vertically arranged on one end of the telescopic beam passing through the fixed beam, a support plate is arranged at the bottom end of the first hydraulic telescopic rod, the support plate is supported on the ground during hoisting, and is supported on the base plate during storage, and a hoisting component for hoisting equipment is arranged on the fixed beam.

2. The movable door type lifting device according to claim 1, characterized in that: The driving assembly comprises a driving motor arranged on the fixed beam, a gear is arranged on the output shaft of the driving motor, a rack is arranged on the telescopic beam along its length direction, and the gear is meshed with the rack.

3. The movable door type lifting device according to claim 1, characterized in that: The hoisting assembly includes a winch arranged on the bottom plate, two fixed pulleys are arranged below the fixed beam, the rope of the winch passes around the two fixed pulleys in sequence, and a hook for hoisting is arranged at the end of the rope of the winch.

4. The movable door type lifting device according to claim 1, characterized in that: The base plate includes a bearing plate and a telescopic plate, the handle bracket and the supporting column are arranged on the bearing plate, the universal wheel is arranged below the bearing plate and the telescopic plate, the telescopic plate is slidably inserted into the bearing plate, and a locking assembly for locking the telescopic plate is arranged on the bearing plate.

5. The movable door type lifting device according to claim 4, characterized in that: The locking assembly includes a locking rod, which is vertically slidably inserted into the bearing plate. A fixing plate is provided on the top of the locking rod. A tension spring is provided between the fixing plate and the bearing plate. The tension spring pulls the fixing plate to move toward the bearing plate. A pull ring is provided on the fixing plate. A locking hole is provided in the telescopic plate. When the telescopic plate is extended, the locking rod is inserted into the locking hole.

6. The movable door type lifting device according to claim 4, characterized in that: The universal wheels are all provided with brakes, and a plurality of electric push rods are arranged below the bearing plate, and the electric push rods are in contact with the ground.

7. The movable door type lifting device according to claim 1, characterized in that: The supporting column is a second hydraulic telescopic rod.

8. The movable door type lifting device according to claim 1, characterized in that: The support plate is rotatably connected to the bottom end of the first hydraulic telescopic rod.

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