Auxiliary device for moving, lifting and mounting heavy door

Abstract

The utility model relates to an auxiliary device for moving, lifting and installing a heavy door, which comprises a U-shaped supporting groove plate, connecting plates and a lifting component, the U-shaped supporting groove plate comprises a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are respectively arranged on two sides of the bottom plate, the connecting plates are respectively arranged on the outer wall of the first side plate and the outer wall of the second side plate, and the connecting plates are perpendicular to the side plates. Lifting assemblies are arranged on the outer side of the first side plate and the outer side of the second side plate correspondingly, universal wheel assemblies are arranged at the bottoms of the lifting assemblies, the lifting assemblies are installed on the connecting plate, and the lifting assemblies are adjusted to be used for driving the U-shaped supporting groove plate to ascend and descend. The auxiliary device designed by the utility model is simple in structure, convenient to disassemble and assemble and low in cost, can realize moving, carrying and lifting of the heavy door, and can effectively reduce the investment of labor force and improve the mounting efficiency of the door.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy-duty door installation equipment, in particular to an auxiliary device for moving, lifting and installing a heavy-duty door. Background Art

[0002] Steel fire doors and tempered glass doors in large public buildings are usually large in size and heavy in weight. When installing, transporting or replacing old doors, these heavy doors need to be installed on the door frame. At present, multiple people usually lift the door to the installation height or use a crowbar to lift it after placing a support at the bottom of the door. Then one person straightens the door, and another person installs the door on the door frame through the hinge. In actual installation, due to multiple people operating, coordination is inconvenient, and it is a waste of manpower and time. It is laborious to lift or adjust the height of the door, and the support or crowbar is easy to damage the door leaf. In addition, when transporting doors, they are all carried by hand or using tools such as trolleys. Manual transportation is strenuous and hands can easily get injured if they slip. If there is a threshold or obstacle that cannot be crossed during transportation, the trolley is easy to overturn; secondly, when the space is limited, it cannot accommodate multiple people for transportation.

[0003] In the existing public documents, there are various auxiliary tools for door installation or movement, some of which can only assist the movement and transportation of the door, but cannot lift the door to a certain height; some can realize the movement and transportation of the door and can lift the door to a certain height for easy installation. For the auxiliary tools that can be used for the movement, lifting and installation of the door in the prior art, the structural design is often complicated, and the disassembly and assembly steps are relatively complicated, so that the manufacturing cost is usually high. Utility Model Content

[0004] The utility model discloses an auxiliary device for moving, lifting and installing heavy doors, which has a simple structure, is easy to disassemble and assemble, and has low cost. The auxiliary device can realize the moving, handling and lifting of heavy doors, can effectively reduce the labor input, and improve the installation efficiency of the door.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An auxiliary device for moving, lifting and installing heavy doors, including a U-shaped support groove plate, a connecting plate and a lifting assembly. The U-shaped support groove plate includes a bottom plate and a first side plate and a second side plate arranged on both sides of the bottom plate. Connecting plates are respectively provided on the outer walls of the first side plate and the second side plate. The connecting plates are perpendicular to the side plates. Lifting assemblies are respectively provided on the outer sides of the first side plate and the second side plate. A universal wheel assembly is provided at the bottom of the lifting assembly. The lifting assembly is installed on the connecting plate. The lifting assembly is adjusted to drive the lifting and lowering of the U-shaped support groove plate.

[0007] Furthermore, a stiffening plate is provided at the bottom of the connecting plate, the top of the stiffening plate is fixedly connected to the bottom of the connecting plate, and the side of the stiffening plate is fixedly connected to the outer wall of the side plate of the U-shaped supporting groove plate.

[0008] Furthermore, the lifting assembly includes an adjusting nut and a limiting screw, the adjusting nut is fixedly installed on the top of the limiting screw, the bottom of the limiting screw is fixedly connected to the top of the universal wheel assembly, a through threaded hole is opened on the connecting plate, and the limiting screw is embedded in the threaded hole.

[0009] Furthermore, the universal wheel assembly includes a roller arranged at the bottom and a universal bearing arranged at the top of the roller.

[0010] Furthermore, the universal wheel assembly also includes a brake pedal for locking the roller.

[0011] Furthermore, a rubber lining is provided on the inner wall of the U-shaped supporting groove plate.

[0012] Furthermore, a lifting assembly on the outer side of the first side panel and a lifting assembly on the outer side of the second side panel are each provided, and the two lifting assemblies are not provided on the same opposite ends.

[0013] Furthermore, two lifting assemblies are respectively provided on the outer side of the first side panel and the outer side of the second side panel, and the two lifting assemblies located on the outer side of the same side panel are arranged at two ends of the corresponding side panel.

[0014] The auxiliary device designed by the utility model has a simple structure, is easy to disassemble and assemble, and has low cost. The auxiliary device can realize the movement, transportation and lifting of heavy doors, which can effectively reduce the input of labor and improve the installation efficiency of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the auxiliary device in the embodiment.

[0016] Description of Figure Numbers:

[0017] 1. U-shaped support groove plate; 11. first side plate; 12. second side plate; 13. bottom plate;

[0018] 2. Lifting assembly; 21. Adjusting nut; 22. Limiting screw;

[0019] 3. Universal wheel assembly; 31. Universal bearing; 32. Roller; 33. Brake pedal;

[0020] 4. Connecting plate;

[0021] 5. Stiffening plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] This embodiment discloses an auxiliary device for moving, lifting and installing a heavy door, the structure of which is as follows: Figure 1 As shown, it mainly includes a U-shaped support groove plate 1, a lifting assembly 2, a universal wheel assembly 3, a connecting plate 4 and a stiffening plate 5. Among them, the cross-section of the U-shaped support groove plate 1 presents a U-shaped groove structure, and the U-shaped support groove plate 1 is composed of a horizontally arranged bottom plate 13 and a first side plate 11 and a second side plate 12 arranged on both sides of the bottom plate 13. The U-shaped groove of the U-shaped support groove plate 1 is used to embed the door therein to support the door. When making it, the width of the U-shaped groove should be determined in combination with the thickness of the door leaf. In order to avoid damage to the door leaf caused by contact and friction between the door leaf and the inner wall of the U-shaped groove, a layer of rubber lining is also adhered to the inner wall of the U-shaped groove in this embodiment. The rubber lining can also play a shock-absorbing role, thereby increasing the protection effect on the heavy door during movement.

[0024] As mentioned above, both sides of the U-shaped support trough plate 1 are provided with movable lifting components. Under the joint action of the movable lifting components on both sides, the U-shaped support trough plate 1 can be moved horizontally and lifted up and down. The movable lifting component is composed of a lifting component 2, a universal wheel component 3, a connecting plate 4 and a stiffening plate 5. Taking a single set of movable lifting components arranged on the outside of the first side plate 11 as an example, the connecting plate 4 is perpendicular to the first side plate 11, one end of the connecting plate 4 is welded to the outer wall of the first side plate 11, and a through threaded hole is provided in the middle of the connecting plate 4. The lifting component 2 is installed on the connecting plate 4. In order to increase the supporting strength of the connecting plate 4, triangular stiffening plates 5 are also arranged at both ends of the bottom of the connecting plate 4, the top of the stiffening plate 5 is welded to the bottom surface of the connecting plate 4, and the side of the stiffening plate 5 is welded to the outer wall of the first side plate 11.

[0025] In order to simplify the structure and reduce the cost in this embodiment, the lifting assembly 2 is composed of an adjusting nut 21 and a limiting screw 22. The adjusting nut 21 is fixedly installed on the top of the limiting screw 22, and the two form an integral part. The external thread on the limiting screw 22 matches the internal thread of the threaded hole on the connecting plate 4, and the limiting screw 22 passes through the threaded hole. A universal wheel assembly 3 is arranged at the bottom of the limiting screw 22, and the universal wheel assembly 3 includes a roller 32, a universal bearing 31, and a brake pedal 33 for locking the roller 32. The roller 32 is connected to the bottom of the universal bearing 31, and the top of the universal bearing 31 is fixedly connected to the limiting screw 22. Due to the existence of the universal bearing 31, when the limiting screw 22 is rotated, the roller 32 will not rotate accordingly. Only when an external force pushes the U-shaped support groove plate 1, the roller 32 will be horizontally displaced in all directions.

[0026] There are two schemes for the movable lifting components arranged on both sides of the U-shaped support groove plate 1:

[0027] The first solution: only one set of movable lifting components is set on each side. In this case, the movable lifting components on both sides of the U-shaped support groove plate 1 cannot be set at the same opposite end, but should be as follows: Figure 1 As shown, one set of movable lifting components is installed at the front end of the first side plate 11, and the other set of movable lifting components is installed at the rear end of the second side plate 12, so that balance can be achieved.

[0028] The second solution (without drawings): two sets of movable lifting components are provided on each side, and the two sets of movable lifting components on the same side are installed at the front end of the side panel and the other set is installed at the rear end of the side panel.

[0029] The first solution mentioned above is low-cost, but the second solution is more suitable for door leaves with heavier weight.

[0030] When the auxiliary device designed by the utility model is used to move and transport the heavy door on a flat road, only two sets of auxiliary devices are needed, and the two sets of auxiliary devices are arranged at both ends of the heavy door, that is, one end of the heavy door is embedded in the U-shaped groove of the U-shaped support groove plate 1 of one set of auxiliary devices, and the other end of the heavy door is embedded in the U-shaped groove of the U-shaped support groove plate 1 of another set of auxiliary devices. When it is necessary to move the heavy door horizontally, it is only necessary to push the heavy door, and the universal wheel assembly 3 in the auxiliary device can move along the ground. If it is moved on a road with many obstacles, or if it is necessary to cross a threshold, etc., more auxiliary devices are needed to jointly support the heavy door. After the heavy-duty door is moved to the installation position, the adjusting nut 21 can be manually rotated to make the limiting screw 22 rotate coaxially, so that the U-shaped support groove plate 1 can be lifted or lowered to a certain height, and the heavy-duty door can be sent to the installation height by using the lifting component 2, and the heavy-duty door can be installed; after the installation of the heavy-duty door is completed, the lifting component 2 is used again to lower the U-shaped support groove plate 1, and the heavy-duty door is disengaged from the U-shaped groove of the U-shaped support groove plate 1, and the U-shaped support groove plate 1 is pushed away from the heavy-duty door to complete the entire heavy-duty door movement, lifting and installation operations.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for moving, lifting and installing heavy doors, characterized in that: It includes a U-shaped support groove plate, a connecting plate and a lifting assembly. The U-shaped support groove plate includes a bottom plate and a first side plate and a second side plate arranged on both sides of the bottom plate. Connecting plates are respectively provided on the outer walls of the first side plate and the second side plate. The connecting plates are perpendicular to the side plates. Lifting assemblies are respectively provided on the outer sides of the first side plate and the second side plate. A universal wheel assembly is provided at the bottom of the lifting assembly. The lifting assembly is installed on the connecting plate. The lifting assembly is adjusted to drive the lifting of the U-shaped support groove plate.

2. The auxiliary device for moving, lifting and installing a heavy door according to claim 1, characterized in that: A stiffening plate is provided at the bottom of the connecting plate, the top of the stiffening plate is fixedly connected to the bottom of the connecting plate, and the side of the stiffening plate is fixedly connected to the outer wall of the side plate of the U-shaped supporting groove plate.

3. The auxiliary device for moving, lifting and installing a heavy door according to claim 1, characterized in that: The lifting assembly includes an adjusting nut and a limiting screw. The adjusting nut is fixedly installed on the top of the limiting screw. The bottom of the limiting screw is fixedly connected to the top of the universal wheel assembly. A through threaded hole is opened on the connecting plate, and the limiting screw is embedded in the threaded hole.

4. The auxiliary device for moving, lifting and installing a heavy door according to claim 1, characterized in that: The universal wheel assembly comprises a roller arranged at the bottom and a universal bearing arranged at the top of the roller.

5. The auxiliary device for moving, lifting and installing a heavy door according to claim 4, characterized in that: The universal wheel assembly also includes a brake pedal for locking the roller.

6. The auxiliary device for moving, lifting and installing a heavy door according to claim 1, characterized in that: The inner wall of the U-shaped supporting groove plate is provided with a rubber lining.

7. The auxiliary device for moving, lifting and installing a heavy door according to claim 1, characterized in that: The lifting assembly on the outer side of the first side plate and the lifting assembly on the outer side of the second side plate are each provided with one, and the two lifting assemblies are not provided on the same opposite end.

8. The auxiliary device for moving, lifting and installing a heavy door according to claim 1, characterized in that: Two lifting assemblies are respectively provided on the outer side of the first side panel and the outer side of the second side panel, and the two lifting assemblies located on the outer side of the same side panel are arranged at two ends of the corresponding side panel.

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