Lifting device for building

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a lifting device for construction, which is characterized in that brackets are mounted on two sides of a base, a toothed plate is mounted on one side of each bracket, a motor is mounted at the bottom of each bracket, a screw rod is arranged in each bracket, a threaded sleeve is sleeved on each screw rod, and a conveying table is arranged above the base. A toothed plate is installed on one side of the support, teeth of the toothed plate are located on the upper portion of the support, and when the motor drives the screw to rotate to convey the conveying table to the high position, the side, attached to the toothed plate, of the special-shaped gear is a vertical face before the special-shaped gear makes contact with the teeth of the toothed plate, and therefore the conveying table can move upwards in a parallel state. When the special-shaped gear meets the portion, with teeth, of the toothed plate, the special-shaped gear makes contact with the teeth, under driving of the toothed plate and the special-shaped gear, the conveying table dumps materials on the conveying table towards a platform at the high position, the device does not need to be carried and unloaded by workers, potential safety hazards are reduced, and the practicability of the device is improved.

Description

Technical Field

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

[0002] Construction lifting devices generally include construction elevators and construction hoists, which generally refer to transportation tools for vertically transporting pedestrians or building materials and goods on construction sites.

[0003] When transporting bagged materials such as bagged cement and sand, the existing construction engineering lifting device needs to be transported to a high place and then unloaded by workers waiting above. This has certain limitations and potential safety hazards, which may cause many inconveniences in actual construction and make it less practical. Therefore, those skilled in the art provide a construction lifting device to solve the problems raised in the above background technology. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a lifting device for construction to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting device for construction, comprising a base, brackets are installed on both sides of the base, a toothed plate is installed on one side of the bracket, a motor is installed at the bottom of the bracket, a screw is arranged in the bracket, a threaded sleeve is sleeved on the screw, a conveying platform is arranged above the base, special-shaped gears are installed on both sides of the conveying platform, a positioning shaft is installed on the other side of the special-shaped gear, a limiting slide groove is provided in one end of the conveying platform, and an extension plate is arranged in the limiting slide groove.

[0006] Preferably, a positioning hole is provided on one side of the threaded sleeve, and the conveying platform is rotatably engaged with the positioning hole via a positioning shaft.

[0007] Preferably, the teeth of the toothed plate are located at a high place, and the contact portion between the special-shaped gear and the toothed plate without teeth is a vertical plane. Before the teeth of the special-shaped gear contact the toothed plate, the side where the special-shaped gear and the toothed plate are in contact is a vertical plane. Therefore, the conveying platform can maintain a parallel state and move upward. When the special-shaped gear encounters the portion of the toothed plate with teeth, the special-shaped gear contacts the teeth. Driven by the toothed plate and the special-shaped gear, the conveying platform dumps the material on the conveying platform toward the high platform.

[0008] Preferably, the threaded sleeve is slidably engaged with the bracket, the threaded sleeve is threadedly engaged with the screw rod, the screw rod passes through the bottom of the bracket and is connected to the motor drive, when the motor drives the screw rod to rotate, the conveying platform can be transported to a high place.

[0009] Preferably, the extension plate is slidably engaged with the conveying platform via a limiting sliding groove.

[0010] Compared with the prior art, the utility model provides a lifting device for construction, which has the following beneficial effects:

[0011] Through design, a tooth plate is installed on one side of the bracket, and the teeth of the tooth plate are located on the upper part of the bracket. When the motor drives the screw to rotate and transports the conveyor platform to a high place, before the teeth of the special-shaped gear contact with the teeth of the tooth plate, the side where the special-shaped gear and the tooth plate are in contact is a vertical surface. Therefore, the conveyor platform can maintain a parallel state and move upward. When the special-shaped gear encounters the part with teeth of the tooth plate, the special-shaped gear contacts the teeth. Driven by the tooth plate and the special-shaped gear, the conveyor platform dumps the materials on the conveyor platform to the high platform. The device does not require staff to load and unload, which reduces safety hazards and improves the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of a building lifting device provided in an embodiment of the present application.

[0013] Figure 2 It is a schematic diagram of the working structure of a building lifting device provided in an embodiment of the present application.

[0014] Figure 3 It is a structural schematic diagram of a special-shaped gear in a building lifting device provided in an embodiment of the present application.

[0015] Figure 4 It is a structural cross-sectional view of a conveying platform in a building lifting device provided in an embodiment of the present application.

[0016] Figure 5 It is a schematic diagram of the structure of a screw in a building lifting device provided in an embodiment of the present application.

[0017] In the figure: 1. base; 2. bracket; 3. motor; 4. screw; 5. tooth plate; 6. threaded sleeve; 7. positioning hole; 8. conveyor platform; 9. special-shaped gear; 10. positioning shaft; 11. limiting slide groove; 12. extension plate. DETAILED DESCRIPTION

[0018] 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.

[0019] The utility model provides a technical solution, a lifting device for construction, see Figure 1 , Figure 2 , Figure 3 , Figure 5 , including a base 1, brackets 2 are installed on both sides of the base 1, a toothed plate 5 is installed on one side of the bracket 2, a motor 3 is installed at the bottom of the bracket 2, a screw 4 is arranged in the bracket 2, a threaded sleeve 6 is sleeved on the screw 4, the threaded sleeve 6 is slidably engaged with the bracket 2, the threaded sleeve 6 is threadedly sleeved with the screw 4, the screw 4 passes through the bottom of the bracket 2 and is driven and connected with the motor 3, when the motor 3 drives the screw 4 to rotate, the conveying platform 8 can be conveyed to a high place, a positioning hole 7 is opened on one side of the threaded sleeve 6, the conveying platform 8 is rotatably engaged with the positioning hole 7 through the positioning shaft 10, and a The conveying platform 8 has special-shaped gears 9 installed on both sides of the conveying platform 8, and a positioning shaft 10 is installed on the other side of the special-shaped gear 9. The teeth of the toothed plate 5 are located at a high place, and the contact part between the special-shaped gear 9 and the toothed plate 5 without teeth is a vertical plane. Before the teeth of the special-shaped gear 9 contact the toothed plate 5, the side where the special-shaped gear 9 and the toothed plate 5 are in contact is a vertical plane. Therefore, the conveying platform 8 can maintain a parallel state and rise upward. When the special-shaped gear 9 encounters the part of the toothed plate 5 with teeth, the special-shaped gear 9 contacts the teeth. Driven by the toothed plate 5 and the special-shaped gear 9, the conveying platform 8 dumps the materials on the conveying platform 8 toward the high platform.

[0020] See also Figure 3 , Figure 4 A limiting slide groove 11 is provided in one end of the conveying platform 8, and an extension plate 12 is arranged in the limiting slide groove 11. The extension plate 12 is slidably engaged with the conveying platform 8 through the limiting slide groove 11. In order to avoid a gap between the conveying platform 8 and the high platform after the conveying platform 8 is tilted, a limiting slide groove 11 with an extension plate 12 is provided in the downwardly tilted side of the conveying platform 8. The extension plate 12 protrudes from the conveying platform 8 under its own weight to compensate for the gap caused by the tilt.

[0021] The lifting device in the utility model comprises a base 1 and a conveying platform 8, and brackets 2 are installed on both sides of the base 1, a motor 3 is installed at the bottom of the bracket 2, and the output end of the upper part of the motor 3 drives the connecting screw 4, the screw 4 passes through the bottom side of the bracket 2 and is arranged inside the bracket 2, a threaded sleeve 6 is arranged inside the bracket 2, the threaded sleeve 6 is slidably engaged with the bracket 2 and is threadedly engaged with the screw 4, a positioning hole 7 is opened on one side of the threaded sleeve 6, and a positioning shaft 10 is installed on the outer side of the special-shaped gears 9 on both sides of the conveying platform 8, so that the conveying platform 8 can be rotatably engaged with the positioning hole 7 on the threaded sleeve 6 through the positioning shaft 10;

[0022] A toothed plate 5 is installed on one side of the bracket 2, and the teeth of the toothed plate 5 are located on the upper part of the bracket 2. When the motor 3 drives the screw 4 to rotate and transport the conveying platform 8 to a high place, before the teeth of the special-shaped gear 9 contact with the teeth of the toothed plate 5, the side where the special-shaped gear 9 and the toothed plate 5 are in contact is a vertical surface. Therefore, the conveying platform 8 can maintain a parallel state and move upward. When the special-shaped gear 9 encounters the part with teeth of the toothed plate 5, the special-shaped gear 9 contacts with the teeth. Driven by the toothed plate 5 and the special-shaped gear 9, the conveying platform 8 dumps the materials on the conveying platform 8 toward the high platform. In order to avoid a gap between the conveying platform 8 and the high platform after it is tilted, a limiting slide groove 11 with an extension plate 12 is provided on the side of the conveying platform 8 that is tilted downward. The extension plate 12 protrudes from the conveying platform 8 under its own weight to compensate for the gap caused by the tilt.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] In this document, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to the specific circumstances.

[0025] 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. A lifting device for construction, comprising a base (1), characterized in that: Brackets (2) are installed on both sides of the base (1), a toothed plate (5) is installed on one side of the bracket (2), a motor (3) is installed at the bottom of the bracket (2), a screw rod (4) is arranged in the bracket (2), a threaded sleeve (6) is sleeved on the screw rod (4), a conveying platform (8) is arranged above the base (1), special-shaped gears (9) are installed on both sides of the conveying platform (8), a positioning shaft (10) is installed on the other side of the special-shaped gear (9), a limiting slide groove (11) is provided in one end of the conveying platform (8), and an extension plate (12) is arranged in the limiting slide groove (11).

2. A lifting device for construction according to claim 1, characterized in that: A positioning hole (7) is provided on one side of the threaded sleeve (6), and the conveying platform (8) is rotatably engaged with the positioning hole (7) via a positioning shaft (10).

3. A lifting device for construction according to claim 1, characterized in that: The teeth of the toothed plate (5) are located at a high position, and the contact portion between the special-shaped gear (9) and the toothed plate (5) without teeth is a vertical surface.

4. A lifting device for construction according to claim 1, characterized in that: The threaded sleeve (6) is slidably engaged with the bracket (2), and the threaded sleeve (6) is threadably engaged with the screw rod (4).

5. A lifting device for construction according to claim 1, characterized in that: The screw rod (4) passes through the bottom of the bracket (2) and is drivingly connected to the motor (3).

6. A lifting device for construction according to claim 1, characterized in that: The extension plate (12) is slidably engaged with the conveying platform (8) via the limiting sliding groove (11).

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