A vibration-reducing lifting device

Abstract

A vibration-damping lifting device is used for lifting and moving a cabin. The vibration-damping lifting device includes a lifting rod, a damping module, a walking module, a bracket, a pin seat, and a detachable seat; the lifting rod is driven to lift by a driving device, the lifting rod is connected to the pin seat through the bracket, the pin seat is inserted into the detachable seat, and the detachable seat is connected to the cabin; the lower end of the lifting rod is provided with a damping module, and the lower end of the damping module is provided with a walking module; the lifting rod is connected to the damping module through an upper joint module; the damping module includes a cylinder body, a bottom plate, a lower joint module, a metal sheet, an upper elastic sheet, an upper hole, a piston, a damping hole, an upper cavity, a lower cavity, an injection cavity, and an injection pipe.

Description

Technical Field

[0001] The present invention relates to the field of special vehicles, and in particular to a vibration-damping lifting device. Background Art

[0002] A modular shelter is a transportable, protective, box-like workspace constructed from a combination of various sturdy materials, with a fixed or expandable volume. Research and development of modular shelters began in China in the early 1980s, and in the 1990s, emergency, clinical testing, medical equipment, and technical support facilities were successfully developed. Initially, these shelters were skeletal structures, with their exterior and interior limited by their framework. After years of development, these shelters now possess world-class technology, featuring single-panel panels on all sides, offering both aesthetic appeal and high reliability. These shelters are widely used in both military and civilian applications, with civilian applications widely used in specialized vehicles such as emergency communications vehicles, power station vehicles, and some RVs.

[0003] In actual engineering practice, the following problems exist:

[0004] First, there are both cabin walking structures and cabin lifting structures in the existing technology, but designers are unable to apply the cabin vibration reduction structure to the cabin well, and are even unable to integrate the above three functions.

[0005] Second, in existing technology, disassembly is a crucial feature for product transportation. However, it is difficult to achieve this with integrated structures. As mentioned above, integrating travel, lifting, and vibration reduction functions is a pursuit for those skilled in the art; however, disassembly of these three integrated functions remains an unresolved challenge.

[0006] 3. The hydraulic cylinders in the prior art are generally of integral structure and cannot be quickly disassembled or assembled.

[0007] Fourth, the hydraulic damping cylinder in the existing technology has certain requirements for the liquid level. However, this requires the use of electronic devices to realize liquid level detection and the use of hydraulic systems to realize liquid level control. For simple transportation devices, electronic systems and hydraulic systems will not be installed just because of functional needs. Electronic systems and hydraulic systems are not installed more often based on cost considerations. Therefore, how to realize liquid level detection and liquid level control in simple transportation devices becomes a difficult problem; and if it depends entirely on human eyes, it is not convenient for the human eye to observe the opaque liquid level in the injection hole.

[0008] 5. As mentioned above, liquid level detection and liquid level control are achieved through the structure. However, even if the liquid level control is achieved with the help of the structure, it is more difficult to solve the problem of how to coordinate with other components and not interfere with other components. Summary of the Invention

[0009] In order to overcome the above problems, the present invention proposes a solution to solve the above multiple problems at the same time.

[0010] The technical solution adopted by the present invention to solve its technical problems is: a vibration-damping lifting device for lifting and moving a shelter, the vibration-damping lifting device comprising a lifting rod, a damping module, a moving module, a bracket, a latch seat, and a detachable seat; the lifting rod is driven to lift by a driving device, the lifting rod is connected to the latch seat via the bracket, the latch seat is plugged into the detachable seat, and the detachable seat is connected to the shelter; the lower end of the lifting rod is provided with a damping module, and the lower end of the damping module is provided with a moving module; the lifting rod is connected to the damping module via an upper joint module;

[0011] The upper joint module includes a first base plate, a first plate, a second plate, and a protrusion; the damping module includes a cylinder, a bottom plate, a lower joint module, a metal sheet, an upper elastic sheet, an upper hole, a piston, a damping hole, an upper cavity, a lower cavity, an injection cavity, and an injection pipe; the lower joint module includes a second base plate, an upper plate, and a groove; the injection pipe includes an upper portion, a tube body, and a side hole; the walking module includes a chassis, a lower elastic sheet, a lower hole, a piston rod, and a wheel;

[0012] The lower surface of the lifting rod is connected to a first base plate, which is connected to the first plate and the second plate via a connecting portion. The first base plate, the connecting portion, the first plate, and the second plate together form a sliding space. A protrusion is further provided below the first base plate. An upper plate is provided above the second base plate, and a groove is provided on the upper plate. The upper plate can slide into the sliding space so that the protrusion engages with the groove. After engagement, the upper plate and the first base plate can be connected via a connecting piece. Wheels are provided below the chassis.

[0013] The piston rod is provided above the chassis, the lower hole is provided on the chassis, and the lower elastic sheet is provided around the piston rod above the chassis; the second base plate is provided above the cylinder body, and the cylinder body includes a first wall portion and a second wall portion, the first wall portion is located above the second wall portion, the thickness of the first wall portion is greater than the second wall portion, an injection cavity is formed in the first wall portion, and a piston is provided in the second wall portion, and the piston divides the cavity in the first wall portion into an upper cavity and a lower cavity; a damping hole is provided on the piston; the bottom plate is provided at the lower end of the cylinder body, the metal sheet is connected to the bottom of the bottom plate, and the upper elastic sheet is connected to the bottom of the metal sheet; an upper hole is provided on the bottom plate, the upper hole is aligned with the lower hole, the spring rod passes through the upper hole and the lower hole, the upper hole can allow the spring rod to slide up and down, and the lower hole is a threaded hole;

[0014] The upper plate is provided with an injection hole, and the injection tube passes through the injection hole and the injection cavity into the upper cavity. A side hole is provided on the peripheral wall of the tube body. When no liquid is injected, the position of the side hole is located in the upper cavity. An upper part is provided above the tube body, and the diameter of the upper part is larger than the diameter of the tube body. When no liquid is injected, the upper surface of the upper part is flush with the upper surface of the upper plate; during injection, the working fluid flows through the upper part, the tube body, the side hole, the upper cavity, the damping hole, and the lower cavity in sequence. When the specified liquid level is reached, the injection tube floats up, and the injection is stopped at this time. The injection tube is pressed, and the working fluid enters the tube body through the side hole. The upper surface of the upper part is flush with the upper surface of the upper plate again. After the upper joint module is connected to the lower joint module, the injection tube is located inside the damping module.

[0015] Preferably, the cylinder body and the lower joint module are an integrated structure.

[0016] Preferably, a stopper is further provided in the lower cavity.

[0017] Preferably, when the piston is not connected to the piston rod, the piston rests on the stopper.

[0018] Preferably, the spring rod includes a rod head, a spring, and a rod shaft.

[0019] Preferably, the shaft includes a smooth section and a threaded section.

[0020] Preferably, the threaded section is threadedly connected to the lower hole.

[0021] Preferably, the spring is sleeved on the rod body, with the upper end abutting against the rod head and the lower end abutting against the upper surface of the base plate.

[0022] Preferably, ribs are provided on the bottom plate.

[0023] Preferably, the rib connects the second wall portion and the bottom plate.

[0024] The beneficial effects of the present invention are:

[0025] 1. Regarding the first point raised in the background technology, the integral rod is manufactured in three sections: the upper section is the lifting rod, the middle section is the damping rod, and the lower section is the walking section. The lengths of the upper, middle, and lower sections decrease in sequence. The upper section is driven by a drive device and connected to a corner of the cabin via a bracket. The four integral rods are connected to the four corners of the cabin to form a support. The lifting and walking functions themselves are conventional technologies and will not be described in detail.

[0026] The specific vibration reduction function is: when the traveling wheel is subjected to upward pressure, the gasket group and the damping cylinder provide limiting and buffering vibration reduction; when the traveling wheel falls, the spring rod and the damping cylinder provide positioning and buffering vibration reduction, thereby integrating three functions into one rod, simplifying the structure, reducing space occupancy, and reducing manufacturing difficulty.

[0027] 2. Regarding the second point raised in the background technology, a detachable structure is provided between the upper section and the middle section, which is first slidably engaged and then fixed with bolts. A connecting plate is provided between the middle section and the lower section. A gasket group is provided between the connecting plates and is assisted in fixation by a spring rod. Since the spring rod is a long rod and passes through two holes continuously, the upper hole is a sliding fit and the lower hole is a threaded connection, and there are four spring rods, the horizontal limit is firm; the main fixation can be achieved by partially extending the lower section into the middle section, and the spring rod is easy to disassemble.

[0028] 3. Regarding the third point raised in the background technology, a piston rod is provided on the chassis of the lower section, and the piston rod extends into the damping rod of the middle section. After removing the lower spring rod, the piston rod and the piston in the damping rod can be rotated to engage or disengage. A gasket group is provided between the chassis of the lower section and the bottom plate of the middle section. A through hole is also provided at the upper end of the middle section, and a working fluid can be injected. The working fluid can enter each cavity of the damping rod through the through hole and the damping hole on the piston. Therefore, it is also convenient for injection and drainage during simple disassembly and assembly, so that the damping function can be easily restored when reinstalled after simple disassembly.

[0029] 4. In response to the fourth point raised in the background technology, a first wall portion and a second wall portion are provided in the damping cylinder, and the thickness of the first wall portion is greater than that of the second wall portion, so that a through hole with a small aperture is formed in the first wall portion to facilitate the injection of working fluid. At the same time, an injection tube is also accommodated in the through hole, and the upper edge of the injection tube overlaps the upper part of the middle section; when the injection level reaches the requirement, the injection tube will float, thereby indicating that the liquid level is full, so there is no need for an electronic system, a hydraulic control system, or human eyes to observe the internal liquid level.

[0030] 5. In response to the fifth point raised in the background technology, a side hole is provided on the lower side wall of the liquid injection tube, which is not open on the bottom surface so as not to affect the force-bearing area of ​​the lower surface of the liquid injection tube participating in the buoyancy. The upper edge of the liquid injection tube is sunken into the upper surface of the middle section so as not to affect the connection between the upper section and the middle section; when the liquid injection reaches the standard, even if the liquid injection tube floats, the liquid injection tube can be pressed down, and the excess liquid will flow into the liquid injection tube through the side hole, and the upper edge of the liquid injection tube will be sunk into the upper surface of the middle section again, so as not to affect the connection between the upper section and the middle section. The liquid injection tube can always be in the middle section during operation, so there is no need to carry it separately as a separate liquid level detection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings and examples.

[0032] Figure 1 This is a three-dimensional diagram of the upper section of the lifting device of the present invention

[0033] Figure 2 The three-dimensional diagram of the lower section of the lifting device of the present invention

[0034] Figure 3This is a cross-sectional view of the lower section vibration damping structure of the present invention

[0035] Figure 4 This is the structural diagram of the upper and lower ends of the present invention

[0036] Figure 5 This is the structural diagram of the upper end of the middle section of the present invention

[0037] Figure 6 The three-dimensional diagram of the latch seat of the present invention

[0038] In each figure, the drawings are for illustration only and do not represent the actual size.

[0039] The reference numerals are as follows:

[0040] 1. Lifting rod, 2. Damping module, 3. Walking module, 4. Motor, 5. Transmission system, 6. Rocker, 7. Housing, 8. Cross mounting seat, 9. End cover, 10. Vertical rod, 11. Latch seat, 12. Removable seat, 13. Cross bar, 14. Mounting plate, 15. Bump, 16. Connecting plate, 17. Chassis, 18. Bottom plate, 19. Metal sheet, 20. Upper elastic sheet, 21. Lower elastic sheet, 22. Lower hole, 23. Upper hole, 24. First wall, 25. Second Wall, 26, piston, 27, damping hole, 28, piston rod, 29, lower chamber, 30, upper part, 31, tube body, 32, side hole, 33, upper chamber, 34, centering hole, 35, injection hole, 36, first plate, 37, second plate, 38, protrusion, 39, upper plate, 40, groove, 41, upper connecting plate, 42, lower connecting plate, 43, upper connecting plate, 44, lower supporting plate, 45, upper boss, 46, lower boss, 47, stopper, 48, spring rod, 49, spring. DETAILED DESCRIPTION

[0041] The lifting mechanism is a lifting mechanism that is configured to lift and lower the lifting link, and the lifting link is configured to lift and lower the lifting link, and the lifting link is connected to the lifting link through the support. The lifting mechanism is configured to lift and lower the lifting link, and the lifting link is connected to the lifting link through the support.

[0042] The upper joint module includes a first base plate, a first plate, a second plate, and a protrusion; the damping module includes a cylinder, a bottom plate, a lower joint module, a metal sheet, an upper elastic sheet, an upper hole, a piston, a damping hole, an upper cavity, a lower cavity, an injection cavity, and an injection pipe; the lower joint module includes a second base plate, an upper plate, and a groove; the injection pipe includes an upper portion, a tube body, and a side hole; the walking module includes a chassis, a lower elastic sheet, a lower hole, a piston rod, and a wheel;

[0043] The lower surface of the lifting rod is connected to a first base plate, which is connected to the first plate and the second plate via a connecting portion. The first base plate, the connecting portion, the first plate, and the second plate together form a sliding space. A protrusion is further provided below the first base plate. An upper plate is provided above the second base plate, and a groove is provided on the upper plate. The upper plate can slide into the sliding space so that the protrusion engages with the groove. After engagement, the upper plate and the first base plate can be connected via a connecting piece. Wheels are provided below the chassis.

[0044] The piston rod is provided above the chassis, the lower hole is provided on the chassis, and the lower elastic sheet is provided around the piston rod above the chassis; the second base plate is provided above the cylinder body, and the cylinder body includes a first wall portion and a second wall portion, the first wall portion is located above the second wall portion, the thickness of the first wall portion is greater than the second wall portion, an injection cavity is formed in the first wall portion, and a piston is provided in the second wall portion, and the piston divides the cavity in the first wall portion into an upper cavity and a lower cavity; a damping hole is provided on the piston; the bottom plate is provided at the lower end of the cylinder body, the metal sheet is connected to the bottom of the bottom plate, and the upper elastic sheet is connected to the bottom of the metal sheet; an upper hole is provided on the bottom plate, the upper hole is aligned with the lower hole, the spring rod passes through the upper hole and the lower hole, the upper hole can allow the spring rod to slide up and down, and the lower hole is a threaded hole;

[0045] The upper plate is provided with an injection hole, and the injection tube passes through the injection hole and the injection cavity into the upper cavity. A side hole is provided on the peripheral wall of the tube body. When no liquid is injected, the position of the side hole is located in the upper cavity. An upper part is provided above the tube body, and the diameter of the upper part is larger than the diameter of the tube body. When no liquid is injected, the upper surface of the upper part is flush with the upper surface of the upper plate; during injection, the working fluid flows through the upper part, the tube body, the side hole, the upper cavity, the damping hole, and the lower cavity in sequence. When the specified liquid level is reached, the injection tube floats up, and the injection is stopped at this time. The injection tube is pressed, and the working fluid enters the tube body through the side hole. The upper surface of the upper part is flush with the upper surface of the upper plate again. After the upper joint module is connected to the lower joint module, the injection tube is located inside the damping module.

[0046] As shown in the figure: the cylinder body and the lower joint module are an integrated structure. A stopper is also provided in the lower chamber. When the piston is not connected to the piston rod, the piston rests on the stopper. The spring rod includes a rod head, a spring, and a rod body. The rod body includes a smooth section and a threaded section. The threaded section is threadedly connected to the lower hole. The spring is sleeved onto the rod body, with the upper end abutting the rod head and the lower end abutting the upper surface of the base plate. The base plate is provided with ribs. The ribs connect the second wall portion and the base plate.

[0047] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A vibration-damping lifting device for lifting and moving a shelter, characterized by: The vibration-damping lifting device includes a lifting rod, a damping module, a walking module, a bracket, a latch seat, and a detachable seat; the lifting rod is driven up and down by a driving device, the lifting rod is connected to the latch seat through the bracket, the latch seat is plugged into the detachable seat, and the detachable seat is connected to the shelter; the lower end of the lifting rod is provided with a damping module, and the lower end of the damping module is provided with a walking module; the lifting rod is connected to the damping module through an upper joint module; The upper joint module includes a first base plate, a first plate, a second plate, and a protrusion; the damping module includes a cylinder, a bottom plate, a lower joint module, a metal sheet, an upper elastic sheet, an upper hole, a piston, a damping hole, an upper cavity, a lower cavity, an injection cavity, and an injection pipe; the lower joint module includes a second base plate, an upper plate, and a groove; the injection pipe includes an upper portion, a tube body, and a side hole; the walking module includes a chassis, a lower elastic sheet, a lower hole, a piston rod, and a wheel; The lower surface of the lifting rod is connected to the first base plate, which is connected to the first plate and the second plate through a connecting portion. The first base plate, the connecting portion, the first plate and the second plate together form a sliding space; a protrusion is further provided below the first base plate; an upper plate is provided above the second base plate, and a groove is provided on the upper plate. The upper plate can slide into the sliding space so that the protrusion is engaged with the groove. After engagement, the upper plate and the first base plate can be connected through a connecting piece; Wheels are provided under the chassis; The piston rod is provided above the chassis, the lower hole is provided on the chassis, and the lower elastic sheet is provided around the piston rod above the chassis; the second base plate is provided above the cylinder body, and the cylinder body includes a first wall portion and a second wall portion, the first wall portion is located above the second wall portion, the thickness of the first wall portion is greater than the second wall portion, an injection cavity is formed in the first wall portion, and a piston is provided in the second wall portion, and the piston divides the cavity in the first wall portion into an upper cavity and a lower cavity; a damping hole is provided on the piston; the bottom plate is provided at the lower end of the cylinder body, the metal sheet is connected to the bottom of the bottom plate, and the upper elastic sheet is connected to the bottom of the metal sheet; an upper hole is provided on the bottom plate, the upper hole is aligned with the lower hole, the spring rod passes through the upper hole and the lower hole, the upper hole can allow the spring rod to slide up and down, and the lower hole is a threaded hole; The upper plate is provided with an injection hole, and the injection tube passes through the injection hole and the injection cavity into the upper cavity. A side hole is provided on the peripheral wall of the tube body. When no liquid is injected, the position of the side hole is located in the upper cavity. An upper part is provided above the tube body, and the diameter of the upper part is larger than the diameter of the tube body. When no liquid is injected, the upper surface of the upper part is flush with the upper surface of the upper plate; during injection, the working fluid flows through the upper part, the tube body, the side hole, the upper cavity, the damping hole, and the lower cavity in sequence. When the specified liquid level is reached, the injection tube floats up, and the injection is stopped at this time. The injection tube is pressed, and the working fluid enters the tube body through the side hole. The upper surface of the upper part is flush with the upper surface of the upper plate again. After the upper joint module is connected to the lower joint module, the injection tube is located inside the damping module.

2. The vibration-damping lifting device according to claim 1, characterized in that: The cylinder body and the lower joint module are an integrated structure.

3. The vibration-damping lifting device according to claim 1, characterized in that: A stopper is also provided in the lower cavity.

4. The vibration-damping lifting device according to claim 3, characterized in that: When the piston is not connected to the piston rod, the piston rests on the stopper.

5. The vibration-damping lifting device according to claim 1, characterized in that: The spring rod comprises a rod head, a spring and a rod body.

6. The vibration-damping lifting device according to claim 5, characterized in that: The rod body includes a smooth section and a threaded section.

7. The vibration-damping lifting device according to claim 6, characterized in that: The threaded section is threadedly connected to the lower hole.

8. The vibration-damping lifting device according to claim 7, characterized in that: The spring is sleeved on the rod body, with the upper end abutting against the rod head and the lower end abutting against the upper surface of the base plate.

9. The vibration-damping lifting device according to claim 1, characterized in that: The bottom plate is provided with ribs.

10. The vibration-damping lifting device according to claim 9, characterized in that: The rib connects the second wall portion and the bottom plate.

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