Electric lifting system for detachable expansion type carriage

Abstract

The utility model discloses an electric lifting system for a detachable expansion type carriage, which comprises a main body, the main body comprises an upper beam frame, a lower beam frame and a lifting floor, and four auxiliary support columns are arranged between the upper beam frame and the lower beam frame; four push rods are arranged between the upper beam frame and the lower beam frame and comprise two left push rods and two right push rods, and each push rod is a push rod of a linear motor assembly; the upper end and the lower end of each push rod are respectively connected with the corresponding upper beam frame and the lower beam frame; corresponding linear motor assemblies are arranged at the corresponding positions of the push rods, teeth are arranged on the push rods, and the corresponding linear motor assemblies are provided with gears meshed with the teeth on the corresponding push rods. And each linear motor assembly is fixed on the lifting floor. And the whole main body has higher mechanical supporting capacity and stability. The lifting floor is also used as a part of a mechanical structure in the lifting system, so that the structural stability of the whole main body is facilitated. And the lifting floor is slightly limited in the lifting height in the lifting system main body.

Description

Technical Field

[0001] The utility model relates to an electric lifting system for a detachable and expandable carriage, belonging to the technical field of carriage matching devices. Background Art

[0002] With the development of the automobile industry and the improvement of people's living standards in the prior art, many RVs for field work and life, such as bed cars, B-type RVs, C-type RVs, camel-back RVs and trailer RVs, have appeared. The models used as RVs include small vans, minibuses, MPVs, pickup trucks and trucks. A detachable and expandable compartment is a compartment that can be detached from a car frame, especially a car frame with an open compartment. After the detachable and expandable compartment is separated from the car frame, the detachable and expandable compartment can be independently applied to life needs, and the car can be used alone. After the detachable and expandable compartment is installed on the car frame, the detachable and expandable compartment can be connected to the car frame for easy movement, field work and life. However, when carrying items with a larger mass, the existing detachable and expandable compartment has defects in load-bearing capacity and structural stability due to structural reasons. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electric lifting system for a detachable and expandable carriage, which has strong load-bearing capacity, stable structure, convenient use and simple structure.

[0004] The utility model can adopt the following technical solutions:

[0005] An electric lifting system for a detachable expandable carriage comprises a main body, wherein the main body comprises an upper beam frame, a lower beam frame, and a lifting floor; four auxiliary pillars are arranged between the upper beam frame and the lower beam frame; four push rods are arranged between the upper beam frame and the lower beam frame, two push rods on the left side and two push rods on the right side, and each push rod is a push rod of a linear motor assembly; the upper end and the lower end of each push rod are respectively connected to the corresponding upper beam frame and the lower beam frame; a corresponding linear motor assembly is arranged at a corresponding position of each push rod, each push rod is provided with teeth, and the corresponding linear motor assembly has a gear meshing with the teeth on the corresponding push rod; each linear motor assembly has a fixed seat, and the fixed seat is provided with a hole, and the push rod corresponding to the linear motor assembly passes through the hole; each linear motor assembly is fixed on the lifting floor.

[0006] The utility model can further solve the problem by taking the following improvement measures:

[0007] A further improvement measure is that the positions of the push rods are respectively arranged near the corresponding corners of the lifting floor.

[0008] A further improvement measure is that each auxiliary support is arranged near its corresponding push rod.

[0009] Further improvement measures are: the lower beam frame includes a lower left frame bar, a lower right frame bar, and a rear lower frame bar, the lower left frame bar and the lower right frame bar are respectively connected to the two ends of the rear lower frame bar, and the lower left frame bar, the lower right frame bar, and the rear lower frame bar are arranged to form a "U".

[0010] A further improvement measure is: a linear motor speed regulator or a linear motor frequency converter is provided on the main body.

[0011] A further improvement measure is that: the lifting floor is provided with fixing holes or positioning pins for connecting with the truck compartment, or the lifting floor is provided with fixing holes and positioning pins for connecting with the truck compartment.

[0012] A further improvement measure is that the lower beam frame is provided with fixing holes or positioning pins for connecting with the truck frame, or the lower beam frame is provided with fixing holes and positioning pins for connecting with the truck frame.

[0013] A further improvement measure is that 2 to 4 movable wheels are installed under the lower beam frame.

[0014] Further improvement measures are: the main body is provided with surrounding sealing panels, the main body is provided with at least one door, or one to three sides of the main body are provided with expandable combined sealing panel components, and at least one side of the main body is provided with a door; the top surface of the main body is provided with a top plate or a liftable combined sealing panel component.

[0015] The above technical solution has the following technical effects:

[0016] 1. In the utility model, since the four push rods are directly connected to the upper beam frame and the lower beam frame, the entire main body is supported by the four push rods in addition to the auxiliary pillars, and the load-bearing capacity is stronger. The entire main body has stronger mechanical support capacity and stability. At the same time, the lifting floor is also a part of the mechanical structure of the lifting system, providing support force in the horizontal direction through the fixed seat and the push rod, which is conducive to the structural stability of the entire main body.

[0017] 2. The lifting height of the lifting floor of the utility model is limited within the main body of the lifting system. Compared with the hydraulic system, there is no height limit of the hydraulic system. For design needs, each push rod can be provided with teeth on the entire strip, which can realize full-space lifting in a narrow space. Because the hydraulic system has two sections of cylinders, the lifting height range can only be less than half of the space height. If multiple sections of cylinders are used, the cost is high, multiple pillars cannot be synchronized, and the price cost is high. This lifting system is conducive to reducing costs.

[0018] 3. The utility model is easy to use and has a simple structure.

[0019] 4. The utility model can be applied to various carriages (compartments) and has a wide range of application scenarios. It can also be convenient for loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the utility model from another viewing angle.

[0022] Figure 3 It is a schematic diagram of the utility model with the auxiliary support removed.

[0023] Figure 4 yes Figure 3 A partial enlarged schematic diagram of .

[0024] Figure 5 It is a reference structure diagram of the application state of the utility model. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with specific embodiments.

[0026] Example 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, an electric lifting system for a detachable expandable carriage includes a main body, the main body includes an upper beam frame 1, a lower beam frame 2, and a lifting floor 3, the lower beam frame includes a left lower frame bar 21, a right lower frame bar 22, and a rear lower frame bar 23, the left lower frame bar 21 and the right lower frame bar 22 are respectively connected to the two ends of the rear lower frame bar 23, and the left lower frame bar, the right lower frame bar, and the rear lower frame bar are arranged in a "U" shape. Four auxiliary pillars 7 are arranged between the upper beam frame 1 and the lower beam frame 2. Four push rods 4 are arranged between the upper beam frame 1 and the lower beam frame 2, two push rods on the left side and two push rods on the right side. Each push rod 4 is a push rod of a linear motor assembly 5. The upper end and the lower end of each push rod 4 are respectively connected to the corresponding upper beam frame 1 and the lower beam frame 2. The corresponding position of each push rod 4 is provided with a corresponding linear motor assembly 5, and each push rod 4 is provided with a tooth 41, and the corresponding linear motor assembly 5 has a gear that meshes with the teeth on the corresponding push rod 4. Like conventional linear motor assemblies, the motor in the linear motor assembly can be driven by a reduction transmission mechanism and a gear. Each linear motor assembly 5 has a fixed seat 51, which is provided with a hole, and a push rod corresponding to the linear motor assembly passes through the hole. The fixed seat 51 is fixed on the lifting floor 3. In this example, each linear motor assembly is fixed to the lifting floor through the fixed seat.

[0027] Working principle: The lifting floor in the lifting system can be raised and lowered, and moves between the upper beam frame and the lower beam frame when each linear motor component is working. When applied to the cargo compartment of a general truck, the lifting floor can be directly connected and installed on the frame of the car. When the goods are to be loaded onto the vehicle, the connection between the movable plate and the frame of the car is disassembled. The linear motor assembly is started, and the motor moves the gear. At this time, the movable plate does not move relative to the frame of the car, and the upper beam frame and the lower beam frame move downward until the lower beam frame touches the ground, so that the lifting floor is higher than the frame of the car. At this time, the ground supports the entire main body through the lower beam frame, and then the entire cargo compartment can be pulled away from the frame of the car from the rear of the car. Then the lifting floor continues to descend to the ground, and the goods can be loaded onto the lifting floor. Then lift the lifting floor again until the lifting floor is higher than the frame of the car, push the cargo compartment to the appropriate position of the frame of the car, and then lower the lifting floor, so that the lifting floor can be installed on the frame of the car, and the goods can be loaded onto the car at the same time. It is convenient to load goods. It can also be applied to trucks with open compartments, such as Figure 5 As shown, when applied to a truck with an open compartment 6, the lifting floor is placed on an open compartment 61 of the truck with an open compartment.

[0028] Since the four push rods are directly connected to the upper beam frame and the lower beam frame, the entire main body is supported by four push rods in addition to the auxiliary pillars, and has a stronger ability to support the load. The entire main body has stronger mechanical support capacity and stability. At the same time, the lifting floor is also a part of the mechanical structure of the lifting system. It provides support in the horizontal direction through the fixed seat and push rods, which is conducive to the structural stability of the entire main body.

[0029] This lifting system does not have the height limit of the hydraulic system. For design needs, each push rod can be equipped with teeth on the entire strip, which can achieve full-space lifting in a narrow space. Because the hydraulic system has two sections of cylinders, the lifting height range can only be less than half of the space height. If multiple sections of cylinders are used, the cost is high, multiple pillars cannot be synchronized, and the price cost is high. This lifting system is conducive to reducing costs.

[0030] Embodiment 2: The characteristics of this embodiment are:

[0031] The positions of the push rods 4 are respectively arranged near corresponding corners of the lifting floor 3 .

[0032] The arrangement position of each auxiliary support 7 is located near the push rod corresponding to each other. Such a compact structure can make the lifting floor have more use space.

[0033] The rest is the same as in Example 1.

[0034] Embodiment 3: This embodiment is characterized in that a linear motor speed regulator or a linear motor frequency converter is provided on the main body.

[0035] The lifting floor is provided with fixing holes or positioning pins for connecting with the truck compartment, or the lifting floor is provided with fixing holes and positioning pins for connecting with the truck compartment, so as to fix the lifting system on the open compartment of the truck.

[0036] The lower beam frame is provided with fixing holes or positioning pins for connecting with the truck frame, or the lower beam frame is provided with fixing holes and positioning pins for connecting with the truck frame, so as to fix the lifting system on the truck frame.

[0037] The rest is the same as Example 1 or Example 2.

[0038] Embodiment 4: This embodiment is characterized in that 2 to 4 movable wheels are installed under the lower beam frame. These movable wheels can be powered wheels. It is convenient to use when the lower beam frame is supported on the ground and the entire carriage needs to be movable on the ground. The rest is the same as embodiment 1 or embodiment 2 or embodiment 3.

[0039] Embodiment 5: This embodiment is characterized in that the main body is provided with surrounding sealing plates, the main body is provided with at least one door, or one to three sides of the main body are provided with expandable combined sealing plate components, and at least one side of the main body is provided with a door; the top surface of the main body is provided with a top plate or a liftable combined sealing plate component. The rest is the same as Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4.

[0040] Embodiment 6: This embodiment is characterized in that the body is provided with surrounding sealing plates (with 1 to 2 doors) or one to three faces are provided with expandable combined sealing plate (with 1 to 2 doors) components, and the top surface of the body is provided with a top plate or a liftable combined sealing plate component. The rest is the same as Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4.

[0041] The utility model can be applied to the cargo compartment of a general van truck to replace the cargo compartment of a general van truck. It can be applied to the cargo compartment and used as a second cargo compartment superimposed on a general open compartment. In addition, it can be used as a lifting system for a room (cargo) compartment that is very convenient to install and disassemble. It can be used as a lifting system for mobile commercial mobile outlets, mobile business halls, and distributed and quickly transferable business or business bases. It can be used for earthquake relief and emergency rescue camping equipment, and energy and water source base stations in remote areas.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric lifting system for a detachable and expandable carriage, characterized by: It includes a main body, which includes an upper beam frame, a lower beam frame, and a lifting floor; four auxiliary pillars are arranged between the upper beam frame and the lower beam frame; four push rods are arranged between the upper beam frame and the lower beam frame, two push rods on the left and two push rods on the right, and each push rod is a push rod of a linear motor assembly; the upper end and the lower end of each push rod are respectively connected to the corresponding upper beam frame and the lower beam frame; a corresponding linear motor assembly is arranged at a corresponding position of each push rod, each push rod is provided with teeth, and the corresponding linear motor assembly has a gear meshing with the teeth on the corresponding push rod; each linear motor assembly has a fixed seat, the fixed seat is provided with a hole, and the push rod corresponding to the linear motor assembly passes through the hole; each linear motor assembly is fixed on the lifting floor.

2. The electric lifting system for a detachable and expandable carriage according to claim 1 is characterized in that: The positions of the push rods are respectively arranged near the corresponding corners of the lifting floor.

3. The electric lifting system for a detachable and expandable carriage according to claim 2 is characterized in that: The auxiliary support posts are arranged near the corresponding push rods.

4. The electric lifting system for a detachable and expandable carriage according to claim 1 is characterized in that: The lower beam frame includes a left lower frame bar, a right lower frame bar, and a rear lower frame bar. The left lower frame bar and the right lower frame bar are respectively connected to two ends of the rear lower frame bar. The left lower frame bar, the right lower frame bar, and the rear lower frame bar are arranged to form a "U".

5. The electric lifting system for a detachable and expandable carriage according to claim 1 is characterized in that: The main body is provided with a linear motor speed regulator or a linear motor frequency converter.

6. The electric lifting system for a detachable and expandable carriage according to claim 1 is characterized in that: The lifting floor is provided with fixing holes or positioning pins for connecting with the truck compartment, or the lifting floor is provided with fixing holes and positioning pins for connecting with the truck compartment.

7. The electric lifting system for a detachable and expandable carriage according to claim 1 is characterized in that: The lower beam frame is provided with fixing holes or positioning pins for connecting with the truck frame, or the lower beam frame is provided with fixing holes and positioning pins for connecting with the truck frame.

8. The electric lifting system for a detachable and expandable carriage according to claim 1 is characterized in that: 2 to 4 movable wheels are installed under the lower beam frame.

9. The electric lifting system for a detachable and expandable carriage according to claim 1, characterized in that: The main body is provided with surrounding sealing panels, at least one door is provided on the surrounding of the main body, or one to three sides of the main body are provided with expandable combined sealing panel components, and at least one side of the main body is provided with a door; the top surface of the main body is provided with a top plate or a liftable combined sealing panel component.

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