CN216444617U - Goods and materials get on or off bus transportation device and communication rack - Google Patents

Abstract

The application relates to a goods and materials getting on and off vehicle transportation device and a communication cabinet, wherein the goods and materials getting on and off vehicle transportation device comprises a lifting motion mechanism and a horizontal motion mechanism; the horizontal movement mechanism comprises a base assembly and a sliding base assembly, the base assembly comprises a bottom plate and a first walking piece, and the sliding base assembly comprises a sliding frame and a second walking piece; the lifting motion mechanism comprises a power supply host, an air compression control host, a pneumatic rod, a crane boom and a lengthened arm, wherein the crane boom is connected to the pneumatic rod, and the lengthened arm is connected to the crane boom in a sliding manner; the power supply host is used for supplying power to the air compression control host, and the air compression control host is used for controlling the stretching of the pneumatic rod so as to drive the lifting arm and the lengthening arm to lift. This goods and materials transport device that gets on or off bus, self small makes things convenient for the convenient transportation of self, can be through the on-vehicle transportation such as private car, minibus. The problems of transportation and getting on and off of other materials during emergency use of the emergency communication cabinet are solved.

Description

Goods and materials get on or off bus transportation device and communication rack

Technical Field

This application belongs to material transport technical field, relates to a material getting on and off bus conveyor and communication rack.

Background

The existing communication cabinet is lifted by mechanical movement or manually moved to get on or off the bus. The mechanical moving lifting mode has the defects that the carrying equipment is large in size and heavy in weight, and is inconvenient to transport on vehicles such as private cars, minivans and the like.

The existing emergency communication cabinet is mainly used for getting on and off a bus in a manual carrying mode during emergency use and transportation. The mechanical moving lifting mode cannot be integrated with the communication cabinet due to the large volume and heavy weight of the carrying equipment, and during emergency communication construction, the emergency communication cabinet is mainly carried by manpower, the weight of the emergency communication cabinet is usually 150-300kg, the carrying is difficult, and the carrying construction needs a plurality of people.

Disclosure of Invention

The technical problem that this application will solve is: to current mechanical movement lift mode, handling equipment is bulky, weight is heavy, the inconvenient problem of vehicle-mounted transportation, provides a goods and materials conveyer and communication rack of getting on or off the bus.

In order to solve the technical problem, on one hand, the application provides a material loading and unloading transportation device which comprises a lifting movement mechanism and a horizontal movement mechanism;

the horizontal movement mechanism comprises a base assembly and a sliding base assembly, the base assembly comprises a bottom plate and a first walking piece arranged below the bottom plate, the sliding base assembly comprises a sliding frame and a second walking piece arranged below the sliding frame, and the sliding frame is connected to the bottom plate in a sliding mode;

the lifting motion mechanism comprises a power supply host, an air compression control host, a pneumatic rod, a crane boom and an extension arm, wherein the power supply host, the air compression control host and the pneumatic rod are arranged on the bottom plate, the crane boom is connected to the pneumatic rod, the extension arm is connected to the crane boom in a sliding manner, and the sliding directions of the extension arm and the sliding frame are perpendicular to the telescopic direction of the pneumatic rod;

the power supply host is used for supplying power to the air compression control host, and the air compression control host is used for controlling the stretching of the pneumatic rod so as to drive the lifting arm and the lengthening arm to lift.

Optionally, the pneumatic rod is a three-stage telescopic rod and comprises a pneumatic rod outer sleeve, a pneumatic rod middle sleeve and a pneumatic rod inner sleeve, the lower end of the pneumatic rod inner sleeve is fixed to or integrally formed at the middle position of the bottom plate, the pneumatic rod middle sleeve is sleeved on the pneumatic rod inner sleeve, the pneumatic rod outer sleeve is sleeved on the pneumatic rod middle sleeve, and the crane boom is fixed to or integrally formed on the pneumatic rod outer sleeve.

Optionally, the boom comprises a boom body fixed to or integrally formed at the lower end of the outer sleeve of the pneumatic rod, and two base arms connected to the boom body, the two base arms being spaced apart in parallel, and each base arm being slidably sleeved with the elongated arm.

Optionally, the power supply main unit and the air compression control main unit are positioned on two sides of the inner sleeve of the pneumatic rod;

the first walking part and the second walking part are caster wheels.

Optionally, the power supply host includes a switching power supply, an inverter power supply, a battery and a relay KA, the switching power supply is connected to the mains supply, and the inverter power supply is electrically connected to the switching power supply and the battery respectively;

air compression control host computer includes air compressor, switch SB1, switch SB2, switch SB3 and solenoid valve, inverter, relay KA, switch SB1, switch SB2 and air compressor connect gradually, the one end of switch SB3 is connected the control end of solenoid valve, the entry connection of solenoid valve air compressor's export, the export of solenoid valve is used for the pressure release, the other end of switch SB3 is connected between switch SB1 and switch SB2, air compressor and solenoid valve connect the commercial power.

Optionally, the carriage comprises a transverse bar, a first longitudinal bar and a second longitudinal bar, the transverse bar is connected between the rear end of the first longitudinal bar and the rear end of the second longitudinal bar;

the two sides of the bottom plate are respectively provided with a first through hole and a second through hole, the first longitudinal rod is inserted in the first through hole in a sliding mode, and the second longitudinal rod is inserted in the second through hole in a sliding mode.

Optionally, the horizontal movement mechanism further comprises a first positioning rod and a second positioning rod, and a first positioning hole and a second positioning hole are respectively formed in two sides of the top of the bottom plate;

the first positioning rod is inserted into the first positioning hole and tightly abutted against the first longitudinal rod so as to limit the first longitudinal rod to slide; the second positioning rod is inserted into the second positioning hole and is tightly abutted against the second longitudinal rod so as to limit the second longitudinal rod to slide.

According to the goods and materials getting on and off transportation device provided by the embodiment of the application, goods and materials (such as the communication cabinet main body) are placed on the lifting arm and the lengthening arm, the goods and materials getting on and off transportation device is manually pushed or the goods and materials (for example, when the goods and materials getting on and off device is arranged in the outer cover, the outer shell of the communication cabinet main body can be pushed to realize horizontal movement), the goods and materials (such as the communication cabinet main body) can be horizontally moved, and the goods and materials (such as the communication cabinet main body) can be horizontally transported. When getting on the vehicle, firstly, the goods and materials (such as the communication cabinet main body) are manually pushed to get on or off the vehicle transportation device or the goods and materials (such as the communication cabinet main body) are close to the vehicle, the extension arm extends from the bottom of the goods and materials (such as the communication cabinet main body), and the goods and materials (such as the communication cabinet main body) are separated from the goods and materials getting on or off the vehicle transportation device. The air compression control host controls the pneumatic rod to extend, so that the lifting arm and the lengthening arm are driven to lift up and down to lift the materials (such as the communication cabinet main body) above the bottom plate of the carriage, and the materials (such as the communication cabinet main body) and the lengthening arm of the on-off vehicle conveying device are pushed into the carriage. Then, the carriage is slid backward. Then, the air compression control main machine controls the pneumatic rod to shorten, and the base assembly rises to be above the bottom plate of the carriage. Finally, the carriage is slid forward into the vehicle cabin. Thus, the goods and materials (such as a communication cabinet main body) enter the carriage, the extension arm is contracted, the goods and materials getting-on and getting-off device enters the outer cover and is fixed, and the side door of the outer cover is closed, so that getting-on is completed. When getting off, the extension arm is extended, the goods getting on/off device is separated from the goods (such as a communication cabinet body), the sliding frame is moved to the opposite direction of the goods (such as the communication cabinet body), the pneumatic rod, the base assembly and the sliding frame are moved out of the bottom surface of the carriage, then the pneumatic rod, the base assembly and the sliding frame are descended to the ground, then the sliding frame is moved to the same side of the goods (such as the communication cabinet body), then the goods (such as the communication cabinet body) is lifted to be separated from the bottom surface of the carriage through the pneumatic rod, then the goods (such as the communication cabinet body) is moved out of the carriage through the moving goods getting on/off device, and then the goods (such as the communication cabinet body) is descended to the ground through the pneumatic rod. Then the extension arm is contracted to push the material getting-on and getting-off device to enter the outer cover and be fixed, so as to realize the getting-off of the material (such as a communication cabinet main body). Thus, the problem of getting on and off large-volume and heavy-weight materials (such as the communication cabinet main body) is solved.

The goods and materials conveyer of getting on or off bus of this application embodiment, whole structure is L type structure, and shrink is small (self is small), makes things convenient for the convenient transportation of self, can be through the vehicle-mounted transportation such as private car, minibus. The problems of transportation and getting on and off of other materials during emergency use of the emergency communication cabinet are solved, and various vehicles can be used for transportation.

On the other hand, the embodiment of the application also provides a communication cabinet, which comprises a communication cabinet main body and the material getting-on and getting-off transportation device, wherein the communication cabinet main body can be driven to lift through the lifting of the cargo boom and the lengthened arm of the material getting-on and getting-off transportation device;

the lengthened arm is inserted into the bottom of the communication cabinet main body, so that the material loading and unloading transportation device and the communication cabinet main body can be combined into a whole; the elongated arm extends and exits the bottom of the communication cabinet body such that the material loading and unloading transport device can be separated from the communication cabinet body.

Optionally, when the communication cabinet is loaded, the sliding frame slides to the same side as the communication cabinet main body; when the communication cabinet gets off, the sliding frame slides to the side opposite to the communication cabinet main body, descends to the ground through the pneumatic rod, returns the sliding frame to the same side with the communication cabinet main body, and descends to the ground through the pneumatic rod.

Optionally, the communication cabinet further includes a cover covering the material loading and unloading transportation device, the cover includes a frame body and a side door installed on the frame body and facing the communication cabinet main body, and the lifting mechanism of the material loading and unloading transportation device can enter and exit the cover through the side door;

the goods and materials getting on or off the bus conveyer can be locked by the locking mechanism when being combined with the communication cabinet main body into a whole.

The communication cabinet that this application embodiment provided has possessed above-mentioned goods and materials and gets on or off bus conveyor's all advantages.

Drawings

Fig. 1 is a perspective view of a material loading and unloading transport device according to an embodiment of the present application;

FIG. 2 is an electrical schematic diagram of a material loading and unloading conveyor according to an embodiment of the present application;

fig. 3 is a schematic view of a telecommunications cabinet provided by an embodiment of the present application;

fig. 4 is a schematic view of a telecommunications enclosure provided in accordance with an embodiment of the present application with a side door of the enclosure removed.

The reference numerals in the specification are as follows:

1. a communication cabinet main body;

2. a housing;

3. a material loading and unloading transportation device; 31. a base assembly; 311. a base plate; 312. a first traveling member; 32. A sliding base assembly; 321. a carriage; 3211. a transverse bar; 3212. a first longitudinal bar; 3213. a second longitudinal bar; 322. a second running member; 33. a power supply host; 331. a switching power supply; 332. an inverter power supply; 333. a battery; 34. an air compression control host; 341. an air compressor; 342. an electromagnetic valve; 35. a pneumatic rod; 351. a pneumatic rod outer sleeve; 352. a pneumatic rod middle sleeve; 353. an inner sleeve for the pneumatic rod; 36. a cargo boom; 361. a boom body; 362. a base arm; 37. and (5) lengthening the arm.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1 to 4, the communication cabinet provided in the embodiment of the present application includes a communication cabinet main body 1 and a material getting-on and getting-off transport device 3.

The communication cabinet main body 1 is an example of a material, and may be other materials, such as other weights with similar shapes.

The material loading and unloading transportation device 3 comprises a lifting motion mechanism and a horizontal motion mechanism.

Horizontal motion includes base subassembly 31 and sliding base subassembly 32, base subassembly 31 includes bottom plate 311 and sets up first walking piece 312 of bottom plate 311 below, sliding base subassembly 32 includes carriage 321 and sets up second walking piece 322 of carriage 321 below, carriage 321 sliding connection be in on the bottom plate 311.

The lifting mechanism comprises a power supply main machine 33, an air compression control main machine 34, a pneumatic rod 35, a lifting arm 36 and an elongated arm 37, wherein the power supply main machine 33, the air compression control main machine 34 and the pneumatic rod 35 are installed on the bottom plate 311, the lifting arm 36 is connected to the pneumatic rod 35, the elongated arm 37 is slidably connected to the lifting arm 36, and the sliding directions of the elongated arm 37 and the sliding frame 321 are perpendicular to the telescopic direction of the pneumatic rod 35; the power supply main unit 33 is used for supplying power to the air compression control main unit 34, and the air compression control main unit 34 is used for controlling the expansion and contraction of the pneumatic rod 35, so as to drive the lifting arm 36 and the extension arm 37 to ascend and descend.

In one embodiment, referring to fig. 1, the pneumatic rod 35 is a three-stage telescopic rod, the pneumatic rod 35 includes an outer pneumatic rod sleeve 351, a middle pneumatic rod sleeve 352 and an inner pneumatic rod sleeve 353, the lower end of the inner pneumatic rod sleeve 353 is fixed to or integrally formed at the middle position of the bottom plate 311, the middle pneumatic rod sleeve 352 is sleeved on the inner pneumatic rod sleeve 353, the outer pneumatic rod sleeve 31 is sleeved on the middle pneumatic rod sleeve 352, and the lift arm 36 is fixed (for example, by a bolt) or integrally formed on the outer pneumatic rod sleeve 351. The pneumatic rod 35 is driven by air pressure to extend and retract to move up and down, and is a lifting load-bearing body.

In one embodiment, referring to fig. 1, the lift arm 36 includes a lift arm body 361 fixed to or integrally formed at a lower end of the pneumatic rod outer sleeve 351, and two base arms 362 connected to the lift arm body 361, the two base arms 362 being spaced apart in parallel, and each base arm 362 being slidably sleeved with the elongated arm 37. The boom 36 mainly carries a heavy object (the communication cabinet main body 1). The extension arm 37 and the crane arm 36 form a telescopic structure which can be detached. In the pneumatic rod lifting emergency communication cabinet, the material loading and unloading conveying device 3 and the emergency communication cabinet are combined into a whole or separated.

In one embodiment, referring to FIG. 1, the power supply main unit 33 and the air compression control main unit 34 are located on both sides of the air lever inner sleeve 353.

In one embodiment, referring to fig. 1, the first walking member 312 and the second walking member 322 are caster wheels.

In one embodiment, referring to fig. 1, the sliding frame 321 includes a transverse rod 3211, a first longitudinal rod 3212, and a second longitudinal rod 3213, wherein the transverse rod 3211 is connected between a rear end of the first longitudinal rod 3212 and a rear end of the second longitudinal rod 3213; a first through hole and a second through hole are respectively formed in two sides of the bottom plate 311, the first longitudinal rod 3212 is slidably inserted into the first through hole, and the second longitudinal rod 3213 is slidably inserted into the second through hole. The horizontal movement mechanism further comprises a first positioning rod and a second positioning rod, and a first positioning hole and a second positioning hole are respectively formed in two sides of the top of the bottom plate 311; the first positioning rod is inserted into the first positioning hole and tightly abuts against the first longitudinal rod 3211 to limit the first longitudinal rod 3212 to slide; the second positioning rod is inserted into the second positioning hole and tightly abuts against the second longitudinal rod 3213, so as to limit the sliding of the second longitudinal rod 3213. The first positioning rod and the second positioning rod play a role in positioning and limiting when the sliding frame 321 moves forward and backward relative to the bottom plate 311.

The lifting of the cargo boom 36 and the extension boom 37 of the material loading and unloading transportation device 3 can drive the communication cabinet main body 1 to lift; the extension arm 37 is extended and inserted into the bottom of the communication cabinet main body 1, so that the material loading and unloading transportation device 3 can be integrated with the communication cabinet main body 1; the extension arm 37 is shortened and separated from the bottom of the communication cabinet main body 1 so that the material loading and unloading transport device 3 can be separated from the communication cabinet main body 1.

When the communication cabinet is loaded, the sliding frame 321 slides to the same side of the communication cabinet main body 1, so that the material loading and unloading transportation device 3 is mainly prevented from toppling due to eccentricity; when the communication cabinet is unloaded, the sliding frame 321 slides to the side opposite to the communication cabinet body 1, and descends to the ground through the pneumatic rod 35, and then the sliding frame 321 is returned to the same side as the communication cabinet body 1, and then the communication cabinet body 1 descends to the ground through the pneumatic rod 35, so that the goods and materials loading and unloading transport device 3 can conveniently go from the vehicle to the ground.

In an embodiment, referring to fig. 3 and 4, the communication cabinet further includes a housing 2 covering the material loading/unloading transportation device 3, the housing 2 includes a frame and a side door installed on the frame and facing the communication cabinet main body, and the lifting mechanism of the material loading/unloading transportation device 3 can enter and exit the housing 2 through the side door. When the material loading and unloading transportation device 3 and the communication cabinet main body 1 are combined into a whole, the locking mechanism can be used for locking.

In one embodiment, the communication cabinet body 1 is an existing cabinet, and is integrally connected with the housing 2 and the material loading and unloading conveying device 3 by adding a connecting and fixing hole.

After the side opening door of the outer cover 2 is opened, the lifting movement mechanism of the material loading and unloading conveying device 3 can move out of the outer cover 2 and perform lifting movement.

In one embodiment, the material loading and unloading transport device 3 may be locked to the communication cabinet body 1 by bolts or the like, and by unlocking the locking, the material loading and unloading transport device 3 may be moved out of the housing 2 and lifted.

In an embodiment, referring to fig. 2, the power host 33 includes a switching power supply 331, an inverter power supply 332, a battery 333 and a relay KA, the switching power supply 331 is connected to the commercial power, and the inverter power supply 332 is electrically connected to the switching power supply 331 and the battery 333 respectively; the air compression control host 34 includes an air compressor 341, a switch SB1 (normally open switch), a switch SB2, a switch SB3 and an electromagnetic valve 342, the inverter 331, a relay KA, a switch SB1, a switch SB2 and the air compressor 341 are connected in sequence, one end of the switch SB3 is connected to the control end of the electromagnetic valve 342, the inlet of the electromagnetic valve 342 is connected to the outlet of the air compressor 341, the outlet of the electromagnetic valve 342 is used for pressure relief, the other end of the switch SB3 is connected between the switch SB1 and the switch SB2, the air compressor 341 and the electromagnetic valve 342 are connected to the commercial power. The relay KA includes a coil and a pair of normally open and normally closed contacts.

Referring to fig. 2, the electric operation principle of the material loading and unloading conveyor 3 is as follows:

when the commercial power is supplied, the commercial power supplies power to the battery 333, the air compressor 341, and the solenoid valve 342. When the relay KA is powered on, the normally open contact is closed, and the normally closed contact is opened, so that the air compressor 341 and the electromagnetic valve 342 are directly powered by the mains supply.

When the commercial power is not available, the battery 333 supplies power to the air compressor 341 and the electromagnetic valve 342 through the inverter power supply 332. When the relay KA loses power, the normally open contact is opened, and the normally closed contact is closed, so that the air compressor 341 and the electromagnetic valve 342 are directly powered by the battery 333 through the inverter power supply 332.

Referring to fig. 2, the pneumatic rod 35 is lifted (extended) and held in operation as follows:

pneumatic rod raising and holding: the switch SB1 (normally open switch) is closed, the air compressor 341 and the electromagnetic valve 342 are energized to pneumatically drive the pneumatic rod 35 to rise, and the switch SB1 is pressed to be turned off when it is judged (visually observed or measured) that the rising height meets the requirement. After switch SB1 is opened, the air compressor 341 and solenoid valve 342 are closed so that the pneumatic rod 35 is maintained at the corresponding height.

Pneumatic rod lowering and holding: when the switch SB1 is closed, the switch SB2 is pressed to power off the air compressor 341, and the air compressor 341 does not operate; meanwhile, the switch SB3 is kept in a closed state, the valve of the electromagnetic valve 342 is kept in an open state, the pneumatic rod 35 is depressurized and descended, and when the switch SB1 is pressed to be disconnected or the switch SB3 is pressed to be disconnected, the electromagnetic valve 342 is stopped, the valve is closed, and the pneumatic rod 35 is kept in a corresponding descending position.

Referring to fig. 1 to 4, according to the material loading/unloading transportation device 3 of the embodiment of the present application, the material (e.g., the communication cabinet body 1) is placed on the lift arm 36 and the extension arm 37, and the material loading/unloading transportation device 3 or the material (e.g., when the material loading/unloading device 3 is placed in the housing 2, the housing of the communication cabinet body 1 is pushed to move horizontally) is manually pushed to move the material horizontally, so as to achieve the horizontal transportation of the material.

When getting on or off the vehicle, first, the material getting on or off the vehicle transporting device 3 or the material (for example, the communication cabinet main body 1) is manually pushed to approach the vehicle, the extension arm 37 is extended from the bottom of the material (for example, the communication cabinet main body 1), and the material (for example, the communication cabinet main body 1) is separated from the material getting on or off the vehicle transporting device 3. The air compression control main unit 34 controls the pneumatic rod 35 to extend, so as to drive the lifting arm 36 and the extension arm 37 to lift up and down to lift the materials (such as the communication cabinet body 1) above the bottom plate of the carriage, and push the materials (such as the communication cabinet body 1) and the extension arm 37 of the on-off transport device 3 into the carriage. Then, the carriage 321 is slid backward. The air compression control main unit 34 then controls the air rod 35 to shorten and the base assembly 31 to rise above the floor of the vehicle cabin. Finally, the carriage 321 is slid forward into the vehicle compartment. Thus, the material loading/unloading transport device 3 and the material (for example, the communication cabinet main body 1) enter the carriage, the extension arm 37 is contracted, the material loading/unloading device 3 enters the housing 2 and is fixed, and the side door of the housing 2 is closed, thereby completing the loading. When getting off, the extension arm 37 is extended, the material getting on/off device 3 is separated from the material (e.g. the communication cabinet body 1), the sliding frame 321 is moved to the opposite direction of the material (e.g. the communication cabinet body 1), the pneumatic rod 35 and the base assembly 31, the sliding frame 321 are moved out of the bottom surface of the compartment, then the pneumatic rod 35 and the base assembly 31, the sliding frame 321 are lowered to the ground, then the sliding frame 321 is moved to the same side of the material (e.g. the communication cabinet body 1), then the material (e.g. the communication cabinet body) is lifted up and separated from the bottom surface of the compartment by the pneumatic rod 35, then the material (e.g. the communication cabinet body 1) is moved out of the compartment by moving the material getting on/off device 3, and then the material (e.g. the communication cabinet body 1) is lowered to the ground by the pneumatic rod 35. Then, the extension arm 37 is contracted to push the material getting-on/off device 3 into the housing 2 and fixed, thereby realizing the getting-off of the material (e.g., the communication cabinet main body 1). Thus, the problem of getting on or off the large-volume and heavy-weight materials (such as the communication cabinet main body 1) is solved.

The goods and materials conveyer of getting on or off bus of this application embodiment, whole structure is L type structure, and shrink is small (self is small), makes things convenient for the convenient transportation of self, can be through the vehicle-mounted transportation such as private car, minibus. The problems of transportation and getting on and off of other materials when the emergency communication cabinet is used in an emergency are solved, and various vehicles can be used for transportation.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (9)

1. A material loading and unloading transportation device is characterized by comprising a lifting motion mechanism and a horizontal motion mechanism;

the horizontal movement mechanism comprises a base assembly and a sliding base assembly, the base assembly comprises a bottom plate and a first walking piece arranged below the bottom plate, the sliding base assembly comprises a sliding frame and a second walking piece arranged below the sliding frame, and the sliding frame is connected to the bottom plate in a sliding mode;

the lifting motion mechanism comprises a power supply host, an air compression control host, a pneumatic rod, a crane boom and an extension arm, wherein the power supply host, the air compression control host and the pneumatic rod are arranged on the bottom plate, the crane boom is connected to the pneumatic rod, the extension arm is connected to the crane boom in a sliding manner, and the sliding directions of the extension arm and the sliding frame are perpendicular to the telescopic direction of the pneumatic rod;

the power supply host is used for supplying power to the air compression control host, and the air compression control host is used for controlling the stretching of the pneumatic rod so as to drive the lifting arm and the lengthening arm to lift.

2. A material loading and unloading transportation device as claimed in claim 1, wherein the pneumatic rod is a three-stage telescopic rod and comprises a pneumatic rod outer sleeve, a pneumatic rod middle sleeve and a pneumatic rod inner sleeve, the lower end of the pneumatic rod inner sleeve is fixed to or integrally formed at the middle position of the bottom plate, the pneumatic rod middle sleeve is sleeved on the pneumatic rod inner sleeve, the pneumatic rod outer sleeve is sleeved on the pneumatic rod middle sleeve, and the cargo boom is fixed to or integrally formed on the pneumatic rod outer sleeve.

3. A material transfer unit according to claim 2 wherein the boom comprises a boom body fixed to or integrally formed at a lower end of the outer sleeve and two base arms connected to the boom body, the two base arms being spaced apart in parallel, each base arm being slidably fitted with the extension arm.

4. The material loading and unloading transport device of claim 2, wherein the power supply main unit and the air compression control main unit are located on two sides of the inner sleeve of the pneumatic rod;

the first walking part and the second walking part are caster wheels.

5. The material loading and unloading transportation device of claim 1, wherein the power supply host comprises a switch power supply, an inverter power supply, a battery and a relay KA, the switch power supply is connected with commercial power, and the inverter power supply is electrically connected with the switch power supply and the battery respectively;

air compression control host computer includes air compressor, switch SB1, switch SB2, switch SB3 and solenoid valve, inverter, relay KA, switch SB1, switch SB2 and air compressor connect gradually, the one end of switch SB3 is connected the control end of solenoid valve, the entry connection of solenoid valve air compressor's export, the export of solenoid valve is used for the pressure release, the other end of switch SB3 is connected between switch SB1 and switch SB2, air compressor and solenoid valve connect the commercial power.

6. A material loading and unloading conveyor as claimed in claim 1 wherein the carriage includes a transverse bar, a first longitudinal bar and a second longitudinal bar, the transverse bar being connected between the rear ends of the first and second longitudinal bars;

the two sides of the bottom plate are respectively provided with a first through hole and a second through hole, the first longitudinal rod is inserted in the first through hole in a sliding mode, and the second longitudinal rod is inserted in the second through hole in a sliding mode.

7. The device for transporting materials on or off a vehicle as claimed in claim 6, wherein the horizontal movement mechanism further comprises a first positioning rod and a second positioning rod, and a first positioning hole and a second positioning hole are respectively formed on two sides of the top of the bottom plate;

the first positioning rod is inserted into the first positioning hole and tightly abutted against the first longitudinal rod so as to limit the first longitudinal rod to slide; the second positioning rod is inserted into the second positioning hole and is tightly abutted against the second longitudinal rod so as to limit the second longitudinal rod to slide.

8. A communication cabinet, comprising a communication cabinet main body and the material loading and unloading transportation device as claimed in any one of claims 1 to 7, wherein the communication cabinet main body is lifted and lowered by lifting and lowering a lifting arm and an extension arm of the material loading and unloading transportation device;

the lengthened arm is inserted into the bottom of the communication cabinet main body, so that the material loading and unloading transportation device and the communication cabinet main body can be combined into a whole; the elongated arm is elongated and spaced from the bottom of the telecommunications cabinet body so that the material loading and unloading transport device can be separated from the telecommunications cabinet body.

9. The communication cabinet of claim 8, further comprising a cover covering the material loading and unloading transporter, wherein the cover comprises a frame and a side door mounted on the frame and facing the communication cabinet body, and the lifting mechanism of the material loading and unloading transporter can enter and exit the cover through the side door;

the goods and materials getting on or off the bus conveyer can be locked by the locking mechanism when being combined with the communication cabinet main body into a whole.

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