Movable lifting supporting leg assembly

Abstract

The utility model discloses a movable lifting supporting leg assembly which comprises a telescopic module arranged on a box body, the telescopic end of the telescopic module is exposed out of the bottom of the box body, the two ends of a polished shaft are connected with the inner top wall and the inner bottom wall of the box body respectively, the polished shaft is connected with a linear bearing in a sliding mode, and the linear bearing is connected with the telescopic end. According to the telescopic module, one end of a threaded rod is connected with a driving mechanism, the other end of the threaded rod is inserted into a box body, one end of a threaded sleeve is connected to the threaded rod in a sleeving mode, and the other end of the threaded sleeve penetrates through the box body to be connected with trundles. According to the movable lifting supporting leg assembly, the lifting function is achieved through threaded connection of the threaded rod and the threaded sleeve, meanwhile, precise control over telescopic lifting is achieved through the precision of threaded connection, the influence of moving bumping is avoided, threaded connection is not prone to loosening, and the stability of the stretching state is guaranteed. The optical axis is used for guiding the threaded sleeve to axially move to guarantee stability of the lifting direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical engineering, and more specifically relates to a movable lifting leg assembly. Background Art

[0002] Lifting legs are generally used to support certain equipment on flat ground. They can be divided into single-action legs and linkage legs. The lifting structure of existing lifting legs is mostly a sleeve-type telescopic structure, which is prone to loosening due to bumps and vibrations during movement, and the lifting and lowering adjustment accuracy is difficult to guarantee. Utility Model Content

[0003] The purpose of the utility model is to provide a movable lifting leg assembly to address the deficiencies in the prior art, so as to solve the problems that the lifting structures of the existing lifting legs are mostly sleeve-type telescopic structures, which are prone to loosening due to bumps and vibrations during movement, and the lifting and lowering adjustment accuracy is difficult to ensure.

[0004] In order to achieve the above object, the utility model provides a movable lifting leg assembly, comprising:

[0005] A box body, wherein the box body is provided with a telescopic module, the telescopic end of the telescopic module is exposed at the bottom of the box body, and the telescopic end of the telescopic module is provided with casters;

[0006] An optical axis, the two ends of which are respectively connected to the inner top wall and the inner bottom wall of the box body, a linear bearing is slidably connected to the optical axis, and the linear bearing is connected to the telescopic end to guide the axial movement of the telescopic end. The telescopic module includes:

[0007] A threaded rod, one end of which is connected to a driving mechanism, and the other end of which is inserted into the box;

[0008] A threaded sleeve, one end of which is sleeved on the threaded rod, and the other end of which passes through the box body and is connected to the caster.

[0009] Optionally, the driving mechanism includes a driving motor, the driving motor is arranged on the top of the box body, and the one end of the threaded rod is connected to the output end of the driving motor.

[0010] Optionally, two optical axes are provided, and the two optical axes are respectively located on two sides of the threaded rod.

[0011] Optionally, the caster is rotatably connected to the telescopic end.

[0012] Optionally, the box body is columnar, a connecting plate is provided on the outer periphery of the box body, and a plurality of oblong holes are provided on the connecting plate.

[0013] Optionally, the thread on the threaded rod is a T-type thread.

[0014] Optionally, the linear bearings on the two optical axes and the threaded sleeve form a T-shaped structure.

[0015] Optionally, the motor is connected to the threaded rod via a reversing mechanism and a reducer.

[0016] Optionally, the casters are wide wheels.

[0017] Optionally, the box body and the threaded sleeve have horizontal cross-sections that are rectangular.

[0018] The utility model provides a movable lifting leg assembly, which has the following beneficial effects:

[0019] 1. The movable lifting leg assembly realizes the lifting function through the threaded connection of the threaded rod and the threaded sleeve. At the same time, the precision of the threaded connection is used to achieve precise control of the telescopic lifting, avoiding the impact of movement bumps, and the threaded connection is not easy to loosen, ensuring the stability of the extended state. The optical axis is used to guide the axial movement of the threaded sleeve to ensure the stability of the lifting direction.

[0020] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0022] Figure 1 A structural schematic diagram of a movable lifting leg assembly according to an embodiment of the utility model is shown.

[0023] Figure 2 The figure shows a schematic diagram of the axial structure of the rotating mechanism of the movable lifting leg assembly according to an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Box body; 2. Driving motor; 3. Threaded rod; 4. Threaded sleeve; 5. Optical axis; 6. Linear bearing; 7. Caster. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0027] like Figure 1-2 As shown, a movable lifting leg assembly comprises:

[0028] Box 1, box 1 is provided with a telescopic module, the telescopic end of the telescopic module is exposed at the bottom of the box 1, and the telescopic end of the telescopic module is provided with a caster 7;

[0029] An optical axis 5, the two ends of which are respectively connected to the inner top wall and the inner bottom wall of the box body 1, a linear bearing 6 is slidably connected to the optical axis 5, and the linear bearing 6 is connected to the telescopic end to guide the axial movement of the telescopic end;

[0030] The telescopic module includes:

[0031] A threaded rod 3, one end of which is connected to a driving mechanism, and the other end of which is inserted into the box body 1;

[0032] A threaded sleeve 4, one end of which is sleeved on the threaded rod 3, and the other end of which passes through the box body 1 and is connected to the caster 7.

[0033] Specifically, the lifting function is realized by the threaded connection between the threaded rod 3 and the threaded sleeve, and the precision of the threaded connection is used to achieve precise control of the telescopic lifting, avoiding the impact of movement and bumps, and the threaded connection is not easy to loosen, ensuring the stability of the extended state. The optical axis 5 is used to guide the axial movement of the threaded sleeve to ensure the stability of the lifting direction.

[0034] In this embodiment, the driving mechanism includes a driving motor 2 , which is disposed on the top of the box body 1 , and one end of the threaded rod 3 is connected to the output end of the driving motor 2 .

[0035] Specifically, the driving motor 2 is used to save manpower, and the power-off state of the driving motor 2 hinders the rotation of the threaded rod 3, thereby ensuring the stability of the telescopic lifting posture.

[0036] In this embodiment, two optical axes 5 are provided, and the two optical axes 5 are respectively located on two sides of the threaded rod 3 .

[0037] Specifically, the two optical axes 5 are symmetrically arranged to ensure that the threaded sleeve 4 is subjected to balanced force.

[0038] In this embodiment, the caster 7 is rotatably connected to the telescopic end.

[0039] Specifically, it is convenient for turning and changing direction.

[0040] In this embodiment, the box body 1 is columnar, a connecting plate is provided on the outer periphery of the box body 1, and a plurality of oblong holes are provided on the connecting plate.

[0041] Specifically, the wiring harness, circuit, socket strip or control device is connected through the oblong hole.

[0042] In this embodiment, the thread on the threaded rod 3 is a T-type thread.

[0043] Specifically, T-shaped threads are used to ensure accurate and stable rotation and lifting.

[0044] In this embodiment, the linear bearings 6 on the two optical axes 5 and the threaded sleeves 4 form a T-shaped structure.

[0045] Specifically, the two optical axes 5 are symmetrically arranged to ensure that the threaded sleeve 4 is subjected to balanced force.

[0046] In this embodiment, the motor 2 is connected to the threaded rod 3 via a reversing mechanism and a speed reducer.

[0047] In this embodiment, the casters 7 are wide wheels.

[0048] In this embodiment, the horizontal cross-sections of the box body 1 and the threaded sleeve 4 are respectively rectangular.

[0049] Specifically, the rectangular threaded sleeve 4 utilizes the box body 1 to improve the rotation limit.

[0050] When a movable lifting leg assembly of the present embodiment is used, taking lifting as an example, three groups of movable lifting leg assemblies are arranged under the missile rack, with two movable lifting leg assemblies in each group. When moving on a flat bottom, the movable lifting leg assemblies are in a retracted state. When encountering a step, each group of movable lifting leg assemblies first extends uniformly to raise the missile rack, and then the movable lifting leg assemblies close to the step are retracted to push the missile rack so that the retracted movable lifting leg assemblies contact the upper surface of the step. Then, the remaining two groups of movable lifting leg assemblies are operated in a similar manner to achieve a smooth movement of the missile rack and avoid excessive tilting of the missile during movement.

[0051] During the movement, the movable lifting leg assembly adapts to the road steps. At the same time, the threaded rod and the threaded sleeve are threadedly connected. After adjustment, the driving motor is powered off, and the rotation of the threaded rod is automatically prevented, that is, the threaded connection between the threaded rod and the threaded sleeve is avoided to achieve the lifting function. At the same time, the precision of the threaded connection is used to achieve precise control of the telescopic lifting and lowering, so as to prevent the stability of the extension support from being affected by vibration.

[0052] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A movable lifting leg assembly, characterized in that: include: A box body, wherein the box body is provided with a telescopic module, the telescopic end of the telescopic module is exposed at the bottom of the box body, and the telescopic end of the telescopic module is provided with casters; An optical axis, wherein both ends of the optical axis are respectively connected to the inner top wall and the inner bottom wall of the box body, a linear bearing is slidably connected to the optical axis, and the linear bearing is connected to the telescopic end to guide the axial movement of the telescopic end; The telescopic module comprises: A threaded rod, one end of which is connected to a driving mechanism, and the other end of which is inserted into the box; A threaded sleeve, one end of which is sleeved on the threaded rod, and the other end of which passes through the box body and is connected to the caster.

2. The movable lifting leg assembly according to claim 1, characterized in that: The driving mechanism comprises a driving motor, the driving motor is arranged on the top of the box body, and the one end of the threaded rod is connected to the output end of the driving motor.

3. The movable lifting leg assembly according to claim 2, characterized in that: Two optical axes are provided, and the two optical axes are respectively located on two sides of the threaded rod.

4. The movable lifting leg assembly according to claim 1, characterized in that: The caster is rotatably connected to the telescopic end.

5. The movable lifting leg assembly according to claim 1, characterized in that: The box body is columnar, a connecting plate is arranged on the outer periphery of the box body, and a plurality of oblong holes are arranged on the connecting plate.

6. The movable lifting leg assembly according to claim 2, characterized in that: The thread on the threaded rod is a T-type thread.

7. The movable lifting leg assembly according to claim 3, characterized in that: The linear bearings on the two optical axes and the threaded sleeve form a T-shaped structure.

8. The movable lifting leg assembly according to claim 2, characterized in that: The driving motor is connected to the threaded rod via a reversing mechanism and a speed reducer.

9. The movable lifting leg assembly according to claim 1, characterized in that: The casters are wide wheels.

10. The movable lifting leg assembly according to claim 5, characterized in that: The box body and the threaded sleeve have horizontal cross sections that are rectangular.

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