Lifting tool

Abstract

The utility model provides a lifting tool which comprises a lifting column, a lifting rod and a lifting rod, the plurality of clamps are arranged at intervals and define a clamping space for clamping a workpiece to be hoisted; the plurality of connecting pieces are arranged in one-to-one correspondence with the plurality of clamps; the connecting piece is connected with the davit and the clamp; each clamp is provided with a containing groove with an opening facing the clamping space, the containing grooves are used for containing workpieces to be hung, and the multiple clamps are matched to clamp one workpiece to be hung. Through the cooperation of the davit, the clamp and the connecting piece, the to-be-hoisted workpiece is hoisted, and the traditional mode that a ship steel plate is locked through a rope and then hoisted is replaced. The hoisting tool is convenient to use and high in stability.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding design technology, and in particular to a lifting fixture. Background Technology

[0002] Existing lifting equipment requires tying the steel plates to ropes before lifting them from a ship. This is not only cumbersome, but also results in poor stability of the steel plates after tying. Utility Model Content

[0003] The purpose of this utility model is to provide a lifting fixture to solve the problems of the prior art.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a lifting fixture, comprising:

[0005] A hanging column with a hanging hole at the top;

[0006] Multiple clamps are spaced apart and enclosed to form a clamping space to clamp the workpiece to be lifted;

[0007] Multiple connectors are provided, each corresponding to one of the multiple clamps; the connectors connect the lifting column and the clamps.

[0008] The clamp has a receiving groove with an opening facing the clamping space. The receiving groove is used to receive the workpiece to be lifted. Multiple clamps cooperate to clamp a workpiece to be lifted.

[0009] In one embodiment, the clamp includes a fixed block, a base plate and a movable clamping plate vertically disposed inside the fixed block, the base plate being disposed at the bottom of the fixed block, and the movable clamping plate being located above the base plate and capable of approaching or moving away from the base plate to clamp or release the workpiece to be lifted.

[0010] In one embodiment, the fixed block is hollow and has an accommodating space, and the movable clamping plate is raised and lowered by a lifting mechanism, the lifting mechanism comprising:

[0011] A lead screw extends vertically and is disposed within the accommodating space; the lead screw is rotatably connected to the fixed block;

[0012] A nut is sleeved on the outer circumference of the lead screw and screwed to the lead screw; the nut is fixedly connected to the movable clamping plate and drives the movable clamping plate to rise and fall.

[0013] A drive unit, which is connected to the lead screw and drives the lead screw to rotate, thereby causing the nut to move up and down along the lead screw.

[0014] In one embodiment, the drive includes:

[0015] A drive gear, which is fixed to the bottom of the lead screw;

[0016] A drive gear that meshes with the driving gear;

[0017] A drive shaft is fixedly connected to the drive gear and drives the drive gear to rotate; the drive shaft extends outward from the outside of the fixed block.

[0018] In one embodiment, the drive gear is conical, with its diameter gradually decreasing from top to bottom; the driving gear is conical, with its diameter gradually decreasing from the outside to the inside.

[0019] The driving component also includes an adjustment knob disposed at the outer end of the driving shaft. The diameter of the adjustment knob is larger than the diameter of the driving shaft, and the adjustment knob is located outside the fixing block.

[0020] In one embodiment, a guide hole extending vertically is provided on the inner sidewall of the fixing block;

[0021] A guide slider is provided between the nut and the movable clamping plate. The guide slider is located in the guide hole and can move up and down along the guide hole.

[0022] In one embodiment, the top of the base plate is provided with a top anti-slip pad; the bottom of the movable clamping plate is provided with a bottom anti-slip pad; and the inner side of the fixing block is provided with a side anti-slip pad.

[0023] The top of the anti-slip pad has multiple anti-slip particles, the bottom of the anti-slip pad has multiple anti-slip particles, and the inner side of the side anti-slip pad has multiple anti-slip particles.

[0024] In one embodiment, the column includes a column body and a lifting ring fixed to the top of the column body, the lifting ring having the lifting hole;

[0025] The clamp is provided with a lifting lug at the top, and the lifting lug is provided with a through hole. The connector passes through the through hole and is connected to the column.

[0026] In one embodiment, the number of clamps is even and they are arranged in pairs, with the openings of the receiving slots of the two clamps arranged in pairs facing each other.

[0027] In one embodiment, the connector is a steel wire rope;

[0028] The connector is fixedly connected to the hanging column. The end of the connector away from the hanging column is provided with multiple hooks. The multiple hooks are spaced apart along the length of the connector and are used to connect with the clamp.

[0029] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0030] The lifting fixture of this utility model uses multiple clamps to form a clamping space for holding the workpiece to be lifted. By clamping the workpiece with the clamps, the workpiece can be lifted.

[0031] Furthermore, by moving the movable clamping plate closer to or away from the base plate, the workpiece to be lifted is clamped or released, thereby achieving hoisting.

[0032] The connecting parts use steel wire ropes, which makes the positional relationship between the lifting column and the clamp more flexible and can accommodate more workpieces to be lifted. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the lifting fixture used in this utility model to lift a workpiece to be lifted.

[0034] Figure 2 This is a schematic diagram of the clamp in this utility model.

[0035] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0036] Figure 4 This is a schematic diagram of the top anti-slip pad and anti-slip particles.

[0037] The annotations in the attached figures are explained as follows:

[0038] 11. Hanging column; 111. Column body; 112. Lifting ring; 12. Clamp; 121. Fixing block; 122. Base plate; 123. Movable clamping plate; 124. Lifting lug; 1251. Lead screw; 1252. Nut; 1253. Drive gear; 1254. Drive gear; 1255. Drive shaft; 1256. Adjusting knob; 126. Guide slider; 13. Connecting parts; 141. Top anti-slip pad; 142. Bottom anti-slip pad; 143. Side anti-slip pad; 144. Anti-slip particles;

[0039] 2. Workpiece to be hoisted. Detailed Implementation

[0040] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0041] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0042] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0043] This application provides a lifting fixture for lifting workpieces to be lifted.

[0044] The workpiece to be hoisted can be a steel plate. The steel plate can be square in shape.

[0045] See Figure 1 The lifting fixture includes a lifting column 11, multiple clamps 12, and multiple connectors 13. The lifting column 11 has a lifting hole at its top. The multiple clamps 12 are spaced apart and enclose a clamping space to hold the workpiece 2 to be lifted. The multiple connectors 13 are arranged one-to-one with the multiple clamps 12; the connectors 13 connect the lifting column 11 and the clamps 12. Each clamp 12 has a receiving groove with an opening facing the clamping space, used to receive the workpiece 2 to be lifted. The multiple clamps 12 cooperate to clamp a workpiece 2 to be lifted.

[0046] Specifically, the lifting column 11 includes a column body 111 and a lifting ring 112 fixed to the top of the column body 111, with a lifting hole on the lifting ring 112. The lifting column 11 is connected to the lifting device through the lifting hole.

[0047] Multiple clamps 12 are spaced apart and enclosed to form a clamping space to clamp the workpiece 2 to be lifted. Specifically, each clamp 12 has a receiving groove with an opening facing the clamping space. The receiving groove is used to receive the workpiece 2 to be lifted. The multiple clamps 12 cooperate to clamp the workpiece 2 to be lifted.

[0048] The number of clamps 12 is even and they are arranged in pairs, with the openings of the receiving slots of the two clamps 12 in a pair facing each other. For example, four or six clamps 12 are used to clamp a workpiece 2, such as a steel plate, with a square cross-section. In this embodiment, the number of clamps 12 is four.

[0049] In other embodiments, the number of clamps 12 can also be odd. For example, when the outer periphery of the workpiece 2 to be lifted is circular, an odd number of clamps 12 can be evenly spaced along the circumference.

[0050] The clamp 12 has a lifting lug 124 at its top, and the lifting lug 124 has a through hole. The connector 13 passes through the through hole and is connected to the column 111. This allows the clamp 12 to be lifted along with the column 11.

[0051] See Figure 2 The clamp 12 includes a fixed block 121, a base plate 122 and a movable clamping plate 123 vertically disposed inside the fixed block 121. The base plate 122 is disposed at the bottom of the fixed block 121, and the movable clamping plate 123 is located above the base plate 122 and can approach or move away from the base plate 122 to clamp or release the workpiece 2 to be lifted.

[0052] The fixed block 121, the base plate 122, and the movable clamping plate 123 together form a receiving groove. The workpiece 2 to be lifted is partially located in the receiving groove and is clamped by the movable clamping plate 123 and the base plate 122. Multiple clamps 12 work together to hold multiple parts of the workpiece 2 to be lifted, thereby enabling lifting.

[0053] The lifting lug 124 is fixed to the top of the fixing block 121. The base plate 122 is integrally formed with the fixing block 121, and the bottom of the base plate 122 is flush with the bottom of the fixing block 121. In this embodiment, the base plate 122 and the fixing block 121 are L-shaped.

[0054] A top anti-slip pad 141 is provided on the top of the base plate 122. A bottom anti-slip pad 142 is provided on the bottom of the movable clamping plate 123. A side anti-slip pad 143 is provided on the inner side of the fixing block 121. Therefore, the clamp 12 and the workpiece 2 to be lifted are in contact through the anti-slip pads, which fully protects the workpiece 2 to be lifted.

[0055] The terms "inside" and "outside" are used with reference to the usage state of the lifting equipment. The direction facing the clamping space is considered "inside," and the direction away from the clamping space is considered "outside."

[0056] See Figure 4 The top anti-slip pad 141 has multiple anti-slip particles 144 on its top. The bottom anti-slip pad 142 has multiple anti-slip particles 144 on its bottom. The inner side of the side anti-slip pad 143 has multiple anti-slip particles 144. The anti-slip particles 144 are used to prevent slippage after the clamp 12 holds the workpiece 2 to be lifted.

[0057] In this embodiment, the anti-slip particles 144 are elongated strips. The anti-slip particles 144 are arranged in pairs, and the pairs are inclined so that the distance between them gradually increases from one end to the other. That is, the pairs of anti-slip particles 144 are arranged in a figure-eight shape. Multiple rows of anti-slip particle groups 144 are provided on the top anti-slip pad 141, the bottom anti-slip pad 142, and the side anti-slip pad 143. Each group of anti-slip particles 144 includes multiple pairs of anti-slip particles 144 arranged at intervals. Each pair includes a pair of anti-slip particles 144.

[0058] Specifically, the movable clamp 123 is raised and lowered via a lifting mechanism.

[0059] The lifting mechanism includes a lead screw 1251, a nut 1252, and a drive component. The fixed block 121 is hollow and has an accommodating space. The lead screw 1251 extends vertically and is disposed within the accommodating space. The lead screw 1251 is rotatably connected to the fixed block 121.

[0060] Nut 1252 is sleeved on the outer circumference of lead screw 1251 and screwed to lead screw 1251. Nut 1252 is fixedly connected to movable clamp 123 and drives movable clamp 123 to rise and fall.

[0061] The drive unit is connected to the lead screw 1251 and drives the lead screw 1251 to rotate, thereby causing the nut 1252 to rise and fall along the lead screw 1251.

[0062] See Figure 3 The driving components include a drive gear 1253, a drive gear 1254, and a drive shaft 1255. The drive gear 1254 is fixed to the bottom of the lead screw 1251. The drive gear 1254 meshes with the drive gear 1253. The drive shaft 1255 is fixedly connected to the drive gear 1254 and drives the drive gear 1254 to rotate. The drive shaft 1255 extends outward from the outside of the fixed block 121.

[0063] The drive unit also includes an adjustment knob 1256 disposed at the outer end of the drive shaft 1255. The diameter of the adjustment knob 1256 is larger than the diameter of the drive shaft 1255. The adjustment knob 1256 is located outside the fixing block 121.

[0064] That is, rotating the adjustment knob 1256 causes the drive shaft 1255 to rotate, which in turn drives the drive gear 1254 to rotate. The driving gear 1253, which meshes with the drive gear 1254, also rotates, thereby driving the lead screw 1251 to rotate. The adjustment knob 1256 can be rotated using a tool.

[0065] The surface of the adjustment knob has anti-slip texture, which makes it easy to turn the adjustment knob 1256 with less effort.

[0066] The drive gear 1253 is conical, with its diameter gradually decreasing from top to bottom. The driving gear 1254 is also conical, with its diameter gradually decreasing from the outside to the inside. The meshing of these two conical gears changes the direction of rotation, adjusting the horizontal rotation axis to the vertical direction of the lead screw 1251. The two conical gears improve transmission efficiency and occupy less space.

[0067] Furthermore, a guide hole extending vertically is formed on the inner side wall of the fixing block 121. A guide slider 126 is provided between the nut 1252 and the sliding plate. The guide slider 126 is located in the guide hole and can move up and down along the guide hole. Specifically, the width of the guide hole is adapted to the width of the guide slider 126.

[0068] The connector 13 connects the lifting column 11 and the clamp 12. Specifically, the connector 13 is a steel wire rope.

[0069] Furthermore, the connector 13 is fixedly connected to the lifting column 11. The end of the connector 13 away from the lifting column 11 is provided with multiple hooks, which are spaced apart along the length of the connector 13. The hooks are used to connect with the clamp 12. Specifically, the hooks hook onto the lifting lug 124 of the clamp 12.

[0070] The connector 13 uses a steel wire rope, and the inclination angle between the two ends of the steel wire rope is adjustable, that is, the horizontal or vertical distance is adjustable. This allows multiple clamps 12 to form clamping spaces of different sizes and shapes, thus enabling the clamping of workpieces 2 of different sizes and shapes to be lifted. Furthermore, the hooks of the connector 13 can adjust the distance between the lifting column 11 and the clamps 12, further adapting to different needs.

[0071] The following is an explanation of how to use a lifting fixture, taking the lifting of a steel plate as an example:

[0072] First, rotate the adjustment knob 1256 on the clamp 12, and the rotating shaft will rotate accordingly, driving the drive gear 1254 to rotate. The drive gear 1254 drives the active gear 1253 that meshes with it to rotate, thereby driving the lead screw 1251 to rotate, realizing the rise of the lead screw 1251 nut 1252. The movable clamp 123 will rise accordingly, increasing the distance between the movable clamp 123 and the base plate 122.

[0073] The adjusting knob 1256 can be rotated using a tool.

[0074] Then, the four clamps 12 are used to hold the four corners of the steel plate. At this time, the steel plate is located in the receiving groove of the clamps 12 and in the clamping space formed by the four clamps 12.

[0075] Next, turn the adjustment knob 1256 to lower the movable clamping plate 123 and clamp the steel plate, and use the top anti-slip pad 141, bottom anti-slip pad 142 and side anti-slip pad 143 to prevent the clamped steel plate from slipping.

[0076] Finally, the steel plate can be lifted by hooking the lifting ring 112 at the top of the lifting column 11 with the lifting tool.

[0077] The aforementioned lifting fixture replaces the traditional method of lifting marine steel plates by locking them with ropes. This lifting fixture is easy to use and highly stable.

[0078] In summary, this lifting fixture has the following advantages:

[0079] By forming a clamping space with multiple clamps 12 to hold the workpiece 2 to be lifted, the workpiece 2 can be lifted by clamping the workpiece 2 with the clamps 12.

[0080] Furthermore, by moving the movable clamping plate 123 closer to or further away from the base plate 122, the workpiece 2 to be lifted is clamped or released, thereby achieving the lifting operation.

[0081] The connector 13 uses a steel wire rope, which makes the positional relationship between the lifting column 11 and the clamp 12 more flexible and can accommodate more workpieces 2 to be lifted.

[0082] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A lifting fixture, characterized in that, include: A hanging column with a hanging hole at the top; Multiple clamps are spaced apart and enclosed to form a clamping space to clamp the workpiece to be lifted; Multiple connectors are provided, each corresponding to one of the multiple clamps; the connectors connect the lifting column and the clamps. The clamp has an opening facing the clamping space and is used to accommodate the workpiece to be lifted. Multiple clamps cooperate to clamp a workpiece to be lifted. The clamp includes a fixed block, a base plate and a movable clamping plate vertically disposed inside the fixed block. The base plate is disposed at the bottom of the fixed block, and the movable clamping plate is located above the base plate and can approach or move away from the base plate to clamp or release the workpiece to be lifted. A top anti-slip pad is provided on the top of the base plate.

2. The lifting fixture according to claim 1, characterized in that, The fixed block is hollow and has an accommodating space. The movable clamping plate is raised and lowered by a lifting mechanism, which includes: A lead screw extends vertically and is disposed within the accommodating space; the lead screw is rotatably connected to the fixed block; A nut is sleeved on the outer circumference of the lead screw and screwed to the lead screw; the nut is fixedly connected to the movable clamping plate and drives the movable clamping plate to rise and fall. A drive unit, which is connected to the lead screw and drives the lead screw to rotate, thereby causing the nut to move up and down along the lead screw.

3. The lifting fixture according to claim 2, characterized in that, The driving component includes: A drive gear, which is fixed to the bottom of the lead screw; A drive gear that meshes with the driving gear; A drive shaft is fixedly connected to the drive gear and drives the drive gear to rotate; the drive shaft extends outward from the outside of the fixed block.

4. The lifting fixture according to claim 3, characterized in that, The drive gear is conical, with its diameter gradually decreasing from top to bottom; the driving gear is conical, with its diameter gradually decreasing from the outside to the inside. The driving component also includes an adjustment knob disposed at the outer end of the driving shaft. The diameter of the adjustment knob is larger than the diameter of the driving shaft, and the adjustment knob is located outside the fixing block.

5. The lifting fixture according to claim 2, characterized in that, A guide hole extending vertically is provided on the inner side wall of the fixing block; A guide slider is provided between the nut and the movable clamping plate. The guide slider is located in the guide hole and can move up and down along the guide hole.

6. The lifting fixture according to claim 1, characterized in that, The bottom of the movable clamping plate is provided with a bottom anti-slip pad; the inner side of the fixed block is provided with a side anti-slip pad; The top of the anti-slip pad has multiple anti-slip particles, the bottom of the anti-slip pad has multiple anti-slip particles, and the inner side of the side anti-slip pad has multiple anti-slip particles.

7. The lifting fixture according to claim 1, characterized in that, The hanging column includes a column body and a hanging ring fixed to the top of the column body, and the hanging ring is provided with the hanging hole; The clamp is provided with a lifting lug at the top, and the lifting lug is provided with a through hole. The connector passes through the through hole and is connected to the column.

8. The lifting fixture according to claim 1, characterized in that, The number of clamps is even and they are arranged in pairs, with the openings of the receiving slots of the two clamps arranged in pairs facing each other.

9. The lifting fixture according to claim 1, characterized in that, The connector is a steel wire rope; The connector is fixedly connected to the hanging column. The end of the connector away from the hanging column is provided with multiple hooks. The multiple hooks are spaced apart along the length of the connector and are used to connect with the clamp.

Images