A jacking mechanism that is easy to assemble

Abstract

The utility model relates to a jacking mechanism technical field discloses a jacking mechanism convenient to assemble, include: the mounting hole is equipped with on the frame, the guide shaft longitudinal sliding connection is in the mounting hole, the guide bush is equipped with the mounting flange, even screw thread connection has a plurality of fixed screws and a plurality of adjusting bolts on the mounting flange, and the diameter of mounting flange is greater than the mounting hole, the guide shaft longitudinal sliding connection is in the guide bush, and the mounting flange is located above the frame, a plurality of fixed screws and a plurality of adjusting bolts are screw thread connection on the frame, and this jacking device convenient to assemble can effectively solve the coaxial cooperation problem of guide shaft and guide bush quickly, also guarantees the perpendicularity of guide shaft, and the assembly mode is simple to operate, and is laborsaving and efficient.

Description

Technical Field

[0001] This utility model relates to the field of lifting mechanism technology, and in particular to a lifting mechanism that is easy to assemble. Background Technology

[0002] Lifting mechanisms have a wide range of applications in warehousing, logistics and other fields.

[0003] To ensure the accuracy of the guide shaft's movement, existing lifting mechanisms often include a guide sleeve on one side of the guide shaft's movement direction. However, during the assembly of this type of mechanical structure, achieving coaxiality between the guide shaft, guide sleeve, and mounting bracket is frequently challenging, leading to jamming of the guide shaft within the guide sleeve.

[0004] In existing technologies, to solve this problem, the common approach is to grind the gap between the guide sleeve and the guide shaft to be larger or to add guide pins and feeler gauges to allow the guide shaft to move up and down easily on the guide sleeve. However, grinding the gap between the guide sleeve to be larger can easily cause the guide shaft to tilt significantly under the weight of the load, leading to the breakage of the guide screw and causing major mechanical failure. Adding guide pins and feeler gauges requires multiple adjustments and manual installation of guide pins, which increases labor intensity and reduces the assembly efficiency of the lifting mechanism.

[0005] In view of this, we propose a lifting mechanism that is easy to assemble. Utility Model Content

[0006] This utility model proposes a lifting mechanism that is easy to assemble. This easy-to-assemble lifting device can quickly and effectively solve the technical problem of coaxial matching between the guide shaft and the guide sleeve, while also ensuring the perpendicularity of the guide shaft. The assembly method is simple to operate, labor-saving and efficient, thus overcoming the shortcomings of the above-mentioned prior art.

[0007] The technical solution of this utility model is: a lifting mechanism that is easy to assemble, used for mounting on a vehicle frame, wherein the vehicle frame is provided with mounting holes, including:

[0008] The guide shaft is longitudinally slidably connected within the mounting hole;

[0009] The guide sleeve has a mounting flange, on which multiple fixing screws and multiple adjusting bolts are evenly threaded. The diameter of the mounting flange is larger than the mounting hole. The guide shaft is longitudinally slidably connected inside the guide sleeve. The mounting flange is located above the vehicle frame. The multiple fixing screws and multiple adjusting bolts are threadedly connected to the vehicle frame.

[0010] In at least one embodiment of this disclosure, the bottom of the vehicle frame is provided with a U-shaped seat, the U-shaped seat is bolted to the bottom of the mounting hole, and the bottom of the U-shaped seat is provided with a lifting assembly, the lifting assembly being connected to a guide shaft; the lifting assembly is used to drive the guide shaft to move up and down.

[0011] In at least one embodiment of this disclosure, the lifting assembly includes: a transmission mechanism and a guide screw. The transmission mechanism is disposed at the bottom end of the U-shaped seat. The transmission mechanism has a meshing Y-axis and a Z-axis. A drive motor and a manual adjustment bushing are respectively provided at both ends of the Y-axis of the transmission mechanism. The guide screw is disposed on the Z-axis of the transmission mechanism. The guide screw passes through the U-shaped seat, and the guide shaft is threadedly connected to the guide screw.

[0012] In at least one embodiment of this disclosure, the diameter of the guide sleeve is smaller than the diameter of the mounting hole, the guide sleeve is located inside the mounting hole, and the circumference of the mounting hole on the frame is provided with an annular groove communicating with the mounting hole. The diameter of the annular groove is larger than the diameter of the mounting flange, and the thickness of the mounting flange is smaller than the depth of the annular groove.

[0013] In at least one embodiment of this disclosure, the inner wall of the guide sleeve is symmetrically provided with limiting blocks, and the side of the guide shaft is symmetrically provided with limiting grooves that cooperate with the limiting blocks.

[0014] In at least one embodiment of this disclosure, the mounting flange is provided with four fixing screws and four adjusting bolts, and the four fixing screws and four adjusting bolts are respectively threadedly connected to the mounting flange in pairs with intervals.

[0015] In at least one embodiment of this disclosure, the end of the manually adjustable bushing is provided with a hexagonal prism.

[0016] In at least one embodiment of this disclosure, a reducer is connected between the drive motor and the Y-axis of the transmission mechanism, and the transmission mechanism is detachably connected to a U-shaped base.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a lifting mechanism that is easy to assemble. The lifting mechanism uses a mounting flange and threaded screws and adjusting bolts connected to the flange. During the assembly of the guide sleeve, the tilt of the guide sleeve can be adjusted by adjusting the bolts in conjunction with the longitudinal movement of the guide shaft, thereby ensuring the coaxiality of the guide shaft and the guide sleeve. This allows the guide shaft to move easily up and down. The assembly operation of this type of guide sleeve is simple and easy to learn, requiring no high technical skills. This assembly method effectively reduces the accumulation of coaxiality errors between the guide shaft and the guide sleeve caused by assembly and processing, allowing the guide shaft to move easily up and down within the guide sleeve, greatly improving assembly efficiency. Furthermore, it also achieves simple and convenient operation for later maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of a partial structure of the present invention. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of a partial structure of the present invention. Figure 2 .

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Frame; 11. Mounting hole; 2. U-shaped seat; 3. Guide shaft; 31. Limiting groove; 4. Guide sleeve; Mounting flange; 411. Fixing screw; 412. Adjusting bolt; 42. Limiting block; 5. Lifting assembly; 51. Drive lifting mechanism; 511. Drive motor; 512. Manual adjusting bushing. Detailed Implementation

[0024] The accompanying drawings in this disclosure are not drawn to scale, and the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this disclosure are only structural schematic diagrams.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar words used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0027] To ensure the accuracy of the guide shaft's movement, existing lifting mechanisms often include a guide sleeve on one side of the guide shaft's movement direction. However, during the assembly of this type of mechanical structure, achieving coaxiality between the guide shaft, guide sleeve, and mounting bracket is frequently challenging, leading to jamming of the guide shaft within the guide sleeve.

[0028] In existing technologies, to solve this problem, the common approach is to grind the gap between the guide sleeve and the guide shaft to be larger or to add guide pins and feeler gauges so that the guide shaft can move up and down easily on the guide sleeve. However, grinding the gap between the guide sleeve to be larger can easily cause the guide shaft to tilt significantly under the weight of the load, causing the guide screw of the guide shaft to break and resulting in a major mechanical failure. Adding guide pins and feeler gauges is labor-intensive and requires multiple adjustments and manual replacement of guide pins.

[0029] In view of this, we propose a lifting mechanism that is easy to assemble.

[0030] Combination Figures 1 to 3 As shown, a lifting mechanism for easy assembly is used to mount on a vehicle frame 1, the vehicle frame 1 having mounting holes 11, including:

[0031] Guide shaft 3 is longitudinally slidably connected within mounting hole 11;

[0032] The guide sleeve 4 is provided with a mounting flange 41. The mounting flange 41 is evenly threaded with a plurality of fixing screws 411 and a plurality of adjusting bolts 412. The diameter of the mounting flange 41 is larger than the mounting hole 11. The guide shaft 3 is longitudinally slidably connected inside the guide sleeve 4. The mounting flange 41 is located above the frame 1. The plurality of fixing screws 411 and the plurality of adjusting bolts 412 are threadedly connected to the frame 1.

[0033] As an alternative embodiment, the bottom of the frame 1 is provided with a U-shaped seat 2, which is bolted to the bottom of the mounting hole 11. The bottom of the U-shaped seat 2 is provided with a lifting component 5, which is connected to the guide shaft 3. The lifting component 5 is used to drive the guide shaft 3 to lift. When assembling the entire lifting device, the lifting component 5 is first installed on the U-shaped seat 2, and then the guide shaft 3 is connected to the lifting component 5. After completing the above steps, the guide shaft 3 is passed through the mounting hole 11, the U-shaped seat 2 is connected to the frame 1, and then the guide sleeve 4 is installed.

[0034] As an alternative embodiment, the lifting assembly 5 includes a transmission mechanism 51 and a guide screw 52. The transmission mechanism 51 is located at the bottom end of the U-shaped seat 2 and has a meshing Y-axis and Z-axis. A drive motor 511 and a manually adjustable bushing 512 are respectively provided at both ends of the Y-axis of the transmission mechanism 51. The manually adjustable bushing 512 allows for more flexible adjustment of the guide shaft 3 during the installation of the guide sleeve 4, and can raise or lower the guide shaft 3 in case the drive motor 511 of the lifting assembly 5 fails. The heavy object on the guide shaft 3 is lowered; the guide screw 52 is set on the Z-axis of the transmission mechanism 51, the guide screw 52 passes through the U-shaped seat 2, and the guide shaft 3 is threadedly connected to the guide screw 52; when the entire lifting mechanism lifts the heavy object, the drive motor 511 drives the guide screw 52 through the transmission mechanism 51, while the guide shaft 3 threadedly connected to the guide screw 52 does not rotate due to the limiting block 42 in the guide sleeve 4. Then, under the action of the thread, the guide shaft 3 moves upward along the guide sleeve 4, thereby lifting the heavy object on the frame.

[0035] As an alternative embodiment, the diameter of the guide sleeve 4 is smaller than the diameter of the mounting hole 11. The guide sleeve 4 is located inside the mounting hole 11. The frame 1 has an annular groove 12 that communicates with the mounting hole 11 around its circumference. The diameter of the annular groove 12 is larger than the diameter of the mounting flange 41, and the thickness of the mounting flange 41 is smaller than the depth of the annular groove 12. The annular groove 12 allows the guide sleeve 4 and the mounting flange 41 to be mounted below the upper surface of the frame 1, thus avoiding any impact on the load-bearing capacity of the frame 1.

[0036] As an alternative embodiment, the inner wall of the guide sleeve 4 is symmetrically provided with limiting blocks 42, and the side of the guide shaft 3 is symmetrically provided with limiting grooves 31 that cooperate with the limiting blocks 42; the setting of the limiting blocks 42 and the limiting grooves 31 can prevent the guide shaft 3 from rotating inside the guide sleeve 4.

[0037] As an alternative embodiment, the mounting flange 41 is provided with four fixing screws 411 and four adjusting bolts 412, and the four fixing screws 411 and the four adjusting bolts 412 are respectively threadedly connected to the mounting flange 41 in pairs with intervals.

[0038] As an alternative embodiment, the end of the manual adjustment bushing 512 is provided with a hexagonal post; when the operator adjusts the manual adjustment bushing 512, a wrench can be fitted onto the hexagonal post to make it easier to rotate the manual adjustment bushing 512 with less effort.

[0039] As an alternative embodiment, a reducer is connected between the drive motor 511 and the transmission mechanism 51 on the Y-axis; the reducer is used to reduce the speed of the drive motor 511, and the transmission mechanism 51 is detachably connected to the U-shaped seat 2; the detachable connection of the transmission mechanism 51 facilitates the disassembly and installation of the entire device.

[0040] The working principle and usage method of this embodiment:

[0041] This utility model provides a lifting mechanism that is easy to assemble. During the assembly process, the lifting component is first connected to the U-shaped seat, then the guide shaft is connected to the lifting component, and then the U-shaped seat is connected to the mounting hole at the bottom of the frame. The guide shaft passes through the mounting hole, and then the guide sleeve is inserted into the mounting hole from the top of the frame. The guide shaft is located inside the guide sleeve, the limiting block is engaged in the limiting groove, and the mounting flange is in the annular recess. Then, the mounting flange is fixed in the annular recess using two opposing fixing screws. Then, the bushing is manually rotated and adjusted. If manual rotation is difficult, the two opposing fixing screws are slightly loosened, and then the adjusting bolts at both ends of the fixing screws are adjusted until the bushing can be rotated easily. Then, the two opposing fixing screws are tightened. Then, the other opposing fixing screws are fixed in the same way to complete the assembly of the lifting mechanism.

[0042] The above embodiments are merely specific implementations of this utility model patent, used to illustrate the technical solution of this utility model patent, and not to limit it. The protection scope of this utility model patent is not limited thereto. Although this utility model patent has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solution to deviate from the spirit and scope of the implementation technical solution of this utility model patent, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the protection scope of the claims.

Claims

1. A lifting mechanism for easy assembly, for mounting on a vehicle frame (1), the vehicle frame (1) having mounting holes (11), characterized in that, include: The guide shaft (3) is longitudinally slidably connected in the mounting hole (11); The guide sleeve (4) is provided with a mounting flange (41). The mounting flange (41) is evenly threaded with multiple fixing screws (411) and multiple adjusting bolts (412). The diameter of the mounting flange (41) is larger than that of the mounting hole (11). The guide shaft (3) is longitudinally slidably connected in the guide sleeve (4). The mounting flange (41) is located on the frame (1). The multiple fixing screws (411) and the multiple adjusting bolts (412) are threadedly connected to the frame (1).

2. The assembly-friendly lifting mechanism as described in claim 1, characterized in that, The bottom of the frame (1) is provided with a U-shaped seat (2), which is bolted to the bottom of the mounting hole (11). The bottom of the U-shaped seat (2) is provided with a lifting component (5), which is connected to the guide shaft (3). The lifting component (5) is used to drive the guide shaft (3) to lift.

3. The assembly-friendly lifting mechanism as described in claim 2, characterized in that, The lifting assembly (5) includes a transmission mechanism (51) and a guide screw (52). The transmission mechanism (51) is located at the bottom end of the U-shaped seat (2). The transmission mechanism (51) has a meshing Y-axis and a Z-axis. The two ends of the Y-axis of the transmission mechanism (51) are respectively provided with a drive motor (511) and a manual adjustment bushing (512). The guide screw (52) is located on the Z-axis of the transmission mechanism (51). The guide screw (52) passes through the U-shaped seat (2). The guide shaft (3) is threaded onto the guide screw (52).

4. The jacking mechanism as described in claim 1, characterized in that, The diameter of the guide sleeve (4) is smaller than the diameter of the mounting hole (11). The guide sleeve (4) is located inside the mounting hole (11). The mounting hole (11) on the frame (1) is provided with an annular groove (12) that communicates with the mounting hole (11) in the circumferential direction. The diameter of the annular groove (12) is larger than the diameter of the mounting flange (41). The thickness of the mounting flange (41) is smaller than the depth of the annular groove (12).

5. A lifting mechanism for easy assembly as described in claim 1, characterized in that, The guide sleeve (4) has symmetrically provided limiting blocks (42) on its inner wall, and the guide shaft (3) has symmetrically provided limiting grooves (31) that cooperate with the limiting blocks (42) on its side.

6. A lifting mechanism for easy assembly as described in claim 1, characterized in that, The mounting flange (41) is provided with four fixing screws (411) and four adjusting bolts (412). The four fixing screws (411) and the four adjusting bolts (412) are threadedly connected to the mounting flange (41) in pairs with intervals.

7. A lifting mechanism for easy assembly as described in claim 3, characterized in that, The end of the manual adjustment bushing (512) is provided with a hexagonal prism.

8. A lifting mechanism for easy assembly as described in claim 3, characterized in that, A reducer is connected between the Y-axis of the drive motor (511) and the transmission mechanism (51), and the transmission mechanism (51) is detachably connected to the U-shaped seat (2).

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