A lifting device

Abstract

The utility model relates to the field of material transportation, specifically to a lifting device. In the utility model, during the operation of the lifting device, a base is considered to be fixed, a slide rail comprises a fixed end and a movable end, the fixed end is called a track, and the movable end in the slide rail can slide relatively up and down along the track. During the sliding process, the motion trajectory is stable and the running friction is small. A positioning block can be installed on the plane of the platform, the positioning block is used to clamp the material placed on the platform, so that the material moves with the platform and the lifting device, and there is an oblique angle above the positioning block, so that when the material is placed on the plane of the platform from top to bottom, even if there is an offset during placement, it can slide into the specified material placement area surrounded by the positioning block; an elastic ejector can be installed on the positioning block, when the material is placed on the platform, the elastic ejector is compressed, and the elastic force presses the ejector toward the material, so that the material is fixed on the platform and moves with the lifting device more stably.

Description

Technical Field

[0001] The utility model relates to the field of material transportation, in particular to a lifting device. Background Art

[0002] There are many types of lifting devices, including traditional mechanical lifts as well as electric and hydraulic high-efficiency equipment. Common electric lifting devices are mostly composed of a platform, a base, a slide rail, a screw, a nut, and a motor. The platform and the base move up and down along the slide rail, the motor drives the screw to rotate around the axis, and the nut converts the screw's rotational motion into linear motion, driving the platform to rise and fall.

[0003] In the existing electric lifting device, the lead screw will produce obvious vibration during the long-term rotation process, which makes the lifting device not only unstable during the lifting process, but also accompanied by large noise interference. In addition, the lead screw and the motor adopt a split design, and the connecting parts between them occupy the precious slide rail space, wasting the slide rail stroke, making the effective lifting stroke of the lifting device short. The platform and the base can move relatively, and the tiny gap between the parts causes the lifting device to vibrate slightly during transportation, which may also cause collisions between parts, thereby damaging key parts. In order to solve the above problems, we proposed a lifting device. Utility Model Content

[0004] The purpose of the utility model is to provide a lifting device to solve the problems raised in the above background technology.

[0005] To achieve the above object, a lifting device includes a base, a positioning block and a fixing nail;

[0006] A base, wherein the upper side of the base is vertically movably connected with a platform, a screw machine is fixedly installed at the bottom of the inner wall of the base, a bearing seat is fixedly installed at the upper end of the outer wall of the base, one end of the screw of the screw machine is rotatably connected to the inner wall of the bearing seat, and the outer wall of the base is fixedly installed with slide rails on both sides of the screw, and the outer side of the screw of the screw machine is threadedly connected with a nut, and the lower end of the platform is respectively mounted on the movable end of the slide rail and the outer wall of the nut by bolts;

[0007] Positioning blocks, a plurality of said positioning blocks are fixedly mounted on the upper surface of the platform near the edge, and the outer wall of said positioning block facing the inner side of the platform is provided with an elastic ejector pin;

[0008] A fixing nail is rotatably connected to the upper surface of the platform, and the lower end of the fixing nail passes through the platform thread and is connected to the fixed end of the slide rail.

[0009] Further: the screw machine also includes a motor, which is fixedly mounted on the bottom of the inner wall of the base, and the output end of the motor is engaged with the bottom of the screw.

[0010] Furthermore: the direction of the screw rod is consistent with the moving direction of the platform.

[0011] Furthermore: the top of the fixed end of the slide rail is provided with a screw hole, and the upper surface of the platform is provided with a through hole matched with the position of the screw hole of the slide rail.

[0012] Furthermore: the fixing nail includes a turntable and a nail body from top to bottom, the outer wall of the nail body is provided with a thread, and the diameter of the turntable is not less than the diameter of the through hole on the upper surface of the platform.

[0013] Furthermore: the top of the positioning block is provided with a downward bevel at one end close to the inner side of the platform.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the present utility model, during the operation of the lifting device, the base is considered to be fixed, and the slide rail includes a fixed end and a movable end. The fixed end is called a track, and the movable end of the slide rail can slide up and down along the track relatively. During the sliding process, the motion trajectory is stable and the running friction is small;

[0016] 2. The upper surface of the platform can be equipped with a positioning block, which is used to clamp the material placed on the platform so that the material moves with the platform and the lifting device. There is an oblique angle on the top of the positioning block, so that when the material is placed on the upper surface of the platform from top to bottom, even if there is an offset during placement, it can slide into the specified material placement area surrounded by the positioning block; the positioning block can be equipped with an elastic ejector pin. When placing the material on the platform, the elastic ejector pin is compressed, and the elastic force presses the ejector pin toward the material, so that the material is fixed on the platform and moves with the lifting device more stably;

[0017] 3. The lifting device can be equipped with fixing nails, which can fix the platform and the base relatively to reduce the vibration of the lifting device during transportation and cause damage to its structural components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a disassembly schematic diagram of a lifting device of the utility model;

[0019] Figure 2 This is a schematic diagram of a lifting device of the utility model being fixed by fixing nails;

[0020] Figure 3 This is a schematic diagram of a lifting device of the utility model after the fixing nails are removed and the device is moved;

[0021] Figure 4 This is a side schematic diagram of a lifting device of the utility model;

[0022] Figure 5 This is another side view of a lifting device of the utility model;

[0023] Figure 6 It is a top view of the lifting device of the utility model and a schematic diagram of the elastic ejector pin inside the positioning block.

[0024] In the figure: 1. base; 2. platform; 3. positioning block; 4. fixing nail; 5. slide rail; 6. bearing seat; 7. nut; 8. screw machine; 9. material; 10. elastic ejector pin. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-6 , the figure shows a preferred embodiment of the utility model, a lifting device, including a base 1, a positioning block 3 and a fixing nail 4;

[0027] Base 1, the upper side of the base 1 is vertically movably connected with a platform 2, a screw machine 8 is fixedly installed at the bottom of the inner wall of the base 1, a bearing seat 6 is fixedly installed at the upper end of the outer wall of the base 1, one end of the screw of the screw machine 8 is rotatably connected to the inner wall of the bearing seat 6, the outer wall of the base 1 is fixedly installed with slide rails 5 on both sides of the screw, the outer side of the screw of the screw machine 8 is threadedly connected with a nut 7, and the lower end of the platform 2 is respectively installed on the movable end of the slide rail 5 and the outer wall of the nut 7 by bolts;

[0028] Positioning blocks 3, a plurality of positioning blocks 3 are fixedly mounted on the upper surface of the platform 2 near the edge, and the outer wall of the positioning blocks 3 facing the inner side of the platform 2 is provided with elastic ejectors;

[0029] The fixing nail 4 is rotatably connected to the upper surface of the platform 2 , and the lower end of the fixing nail 4 passes through the platform 2 and is threadedly connected to the fixed end of the slide rail 5 .

[0030] Specifically, the screw machine 8 also includes a motor, which is fixedly mounted on the bottom of the inner wall of the base 1. The output end of the motor meshes with the bottom of the screw. After the motor is started, the output end of the motor meshes with the bottom of the screw in a bevel gear manner to control the rotation of the screw.

[0031] The direction of the screw rod is consistent with the moving direction of the platform 2, so that the nut 7 can drive the platform 2 to move up and down.

[0032] It can be understood that screw holes are provided at the tops of the fixed ends of the slide rails 5 , and through holes matching the positions of the screw holes of the slide rails 5 are provided on the upper surface of the platform 2 for the fixing nails 4 to pass through and fix.

[0033] Among them, the fixing nail 4 includes a turntable and a nail body from top to bottom. The outer wall of the nail body is provided with threads to fix the nail body in the screw hole of the slide rail 5. The diameter of the turntable is not lower than the diameter of the through hole on the upper surface of the platform 2 to fix the platform 2 on the top of the base 1.

[0034] Specifically, the top end of the positioning block 3 close to the inner side of the platform 2 is provided with a downward bevel, so that when the material is placed from top to bottom on the upper plane of the platform 2, even if there is an offset during placement, it can slide into the specified material placement area surrounded by the positioning block 3.

[0035] In this embodiment, during the operation of the lifting device, the base 1 is considered to be fixed, and the slide rail 5 includes a fixed end and a movable end. The fixed end is called a track. The movable end of the slide rail 5 can slide up and down relatively along the track. During the sliding process, the motion trajectory is stable and the running friction is small. The track in the slide rail is fixed on the base 1, and the other movable end is fixed on the platform 2. The slide rail can be one set or multiple sets.

[0036] There is also a screw machine 8 fixed on the base 1. The main part of the screw machine 8 is a cylindrical object with threads, namely a screw. One end of the screw has a power source, namely a motor, which makes it rotate around the cylindrical axis. The other end of the screw is connected to the bearing seat 6, and the bearing seat 6 is also fixed on the base 1. The constraint of the bearing seat 6 at the end of the screw makes the screw machine 8 more stable when the cylinder rotates. There is a matching nut 7 on the screw of the screw machine 8. When the screw of the screw machine 8 rotates, the nut 7 will move up and down along the axis, and the nut 7 is fixed on the platform 2. In this way, when the screw of the screw machine 8 rotates clockwise or counterclockwise around the axis, the nut 7 will drive the platform 2 to move up and down. Controlling the rotation angle of the screw machine 8 can control the lifting distance of the platform 2 moving up and down;

[0037] The upper plane of the platform 2 may be equipped with a positioning block 3, which is used to clamp the material placed on the platform 2 so that the material moves with the platform 2 and the lifting device. The positioning block 3 has an oblique angle on top, so that when the material is placed on the upper plane of the platform 2 from top to bottom, even if there is an offset during placement, it can slide into the specified material placement area surrounded by the positioning block 3; the positioning block 3 may be equipped with an elastic ejector pin, and when the material is placed on the platform 2, the elastic ejector pin is compressed, and the elastic force presses the ejector pin toward the material, so that the material is fixed on the platform 2 and moves with the lifting device more stably;

[0038] In addition, the lifting device may be equipped with fixing nails 4, which can fix the platform 2 and the base 1 relatively to each other, so as to reduce the damage of the structural components of the lifting device caused by the vibration during transportation.

[0039] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "install", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A lifting device, characterized in that: include: A base (1), the upper side of the base (1) is vertically movably connected to a platform (2), a screw machine (8) is fixedly installed at the bottom of the inner wall of the base (1), a bearing seat (6) is fixedly installed at the upper end of the outer wall of the base (1), one end of the screw of the screw machine (8) is rotatably connected to the inner wall of the bearing seat (6), the outer wall of the base (1) is fixedly installed with slide rails (5) on both sides of the screw, the outer side of the screw of the screw machine (8) is threadedly connected to a nut (7), and the lower end of the platform (2) is respectively mounted on the movable end of the slide rail (5) and the outer wall of the nut (7) by bolts; Positioning blocks (3), a plurality of the positioning blocks (3) are fixedly mounted on the upper surface of the platform (2) near the edge, and the outer wall of the positioning block (3) facing the inner side of the platform (2) is provided with an elastic ejector pin; A fixing nail (4), wherein the fixing nail (4) is rotatably connected to the upper surface of the platform (2), and the lower end of the fixing nail (4) passes through the platform (2) and is threadedly connected to the fixed end of the slide rail (5).

2. A lifting device according to claim 1, characterized in that: The screw machine (8) also includes a motor, which is fixedly mounted on the bottom of the inner wall of the base (1), and the output end of the motor is meshed with the bottom of the screw.

3. A lifting device according to claim 1, characterized in that: The direction of the screw rod is consistent with the moving direction of the platform (2).

4. A lifting device according to claim 1, characterized in that: The top of the fixed end of the slide rail (5) is provided with a screw hole, and the upper surface of the platform (2) is provided with a through hole matched with the position of the screw hole of the slide rail (5).

5. A lifting device according to claim 4, characterized in that: The fixing nail (4) comprises a turntable and a nail body from top to bottom, the outer wall of the nail body is provided with a thread, and the diameter of the turntable is not less than the diameter of the through hole on the upper surface of the platform (2).

6. A lifting device according to claim 1, characterized in that: The top of the positioning block (3) and one end close to the inner side of the platform (2) are all provided with a downward bevel.

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