Valve group for bearing vertical container

Abstract

The utility model discloses a valve group for bearing a vertical container. The valve group for bearing the vertical container comprises a valve block, the valve block is provided with a first reversing valve and a second reversing valve, an oil port P of the first reversing valve is communicated with a first oil way, an oil port T of the first reversing valve is communicated with an oil port P of the second reversing valve, an oil port T of the second reversing valve is communicated with a second oil way, and the first oil way and the second oil way are used for being communicated with an oil tank. An oil port A of the first reversing valve is communicated with a third oil way, an oil port B of the first reversing valve is communicated with a fourth oil way, the third oil way and the fourth oil way are used for being communicated with a winch motor, an oil port B of the second reversing valve is communicated with a fifth oil way, the fifth oil way is used for being communicated with a multi-stage oil cylinder, the fifth oil way is communicated with a sixth oil way, and an oil port A of the second reversing valve is communicated with a seventh oil way. The sixth oil way and the seventh oil way are used for communicating with an auxiliary oil cylinder. According to the utility model, the problems of easy rollover and high risk in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pressure, in particular to a valve group used for carrying a vertical container. Background Art

[0002] The existing Chinese utility model patent with announcement number CN215157924U and titled "A special vehicle for vertical loading and unloading of mobile garbage bins" discloses that the turning frame is driven by an auxiliary lifting mechanism and a multi-stage hydraulic cylinder, and the turning frame fixes the garbage bin through several clamping mechanisms. However, during the turning process, the center of gravity of the garbage bin changes greatly, and even if a counterweight is installed in the cab, it is easy to roll over, which is very dangerous. In addition, installing a counterweight in the cab will also increase the vehicle's own weight, which is not reasonable. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a valve group for carrying a vertical container which can slow down the change of the center of gravity when the garbage bin is turned over, thereby improving the safety.

[0004] To achieve the above purpose, the technical solution adopted by the valve group for carrying a vertical container of the utility model is:

[0005] A valve group for carrying a vertical container, comprising a valve block, wherein a first reversing valve and a second reversing valve are installed in the valve block, the first and second reversing valves are both M-type three-position four-way solenoid valves, the P oil port of the first reversing valve is connected to a first oil circuit, the T oil port of the first reversing valve is connected to the P oil port of the second reversing valve, the T oil port of the second reversing valve is connected to the second oil circuit, the first and second oil circuits are used to connect to an oil tank, the A oil port of the first reversing valve is connected to a third oil circuit, the B oil port of the first reversing valve is connected to a fourth oil circuit, the third and fourth oil circuits are used to connect to a winch motor, the B oil port of the second reversing valve is connected to a fifth oil circuit, the fifth oil circuit is used to connect to a multi-stage oil cylinder, the fifth oil circuit is connected to a sixth oil circuit, the A oil port of the second reversing valve is connected to a seventh oil circuit, and the sixth and seventh oil circuits are used to connect to an auxiliary oil cylinder.

[0006] Preferably, the valve block is installed with a third reversing valve, which is an M-type three-position four-way solenoid valve, the P oil port of the third reversing valve is connected with the second oil circuit through the eighth oil circuit, the T oil port of the third reversing valve is connected with the second oil circuit through the ninth oil circuit, the second oil circuit is provided with a first two-position two-way solenoid valve, the first two-position two-way reversing valve is located between the eighth and ninth oil circuits, the A and B oil ports of the third reversing valve are respectively connected with the tenth oil circuit, and the tenth oil circuit is used to connect to the box cylinder quick connector.

[0007] Preferably, the valve block is installed with a fourth reversing valve, which is an M-type three-position four-way solenoid valve. The T oil port of the fourth reversing valve is connected to the ninth oil circuit, the P oil port of the fourth reversing valve is connected to the T oil port of the third reversing valve through the eleventh oil circuit, the T oil port of the third reversing valve is connected to the second oil circuit via the eleventh oil circuit and the ninth oil circuit, the A oil port of the fourth reversing valve is connected to the twelfth oil circuit, the B oil port of the fourth reversing valve is connected to the thirteenth oil circuit, and the twelfth and thirteenth oil circuits are used to connect to the outrigger cylinder.

[0008] Preferably, the eighth oil circuit is connected to the fifth oil circuit through the fourteenth oil circuit, the connecting point between the fifth and fourteenth oil circuits is located between the sixth oil circuit and the B oil port of the second reversing valve, the seventh oil circuit is connected to the ninth oil circuit through the fifteenth oil circuit, and a first one-way throttle valve is provided on the fifteenth oil circuit.

[0009] Preferably, a first one-way balancing valve is provided on the seventh oil circuit.

[0010] Preferably, the third and fourth oil circuits are connected via a sixteenth oil circuit, and a second one-way throttle valve and a second two-position two-way solenoid valve are provided on the sixteenth oil circuit.

[0011] Preferably, a second one-way balancing valve is provided on the third oil circuit, and the second one-way balancing valve is located between the sixteenth oil circuit and the oil port A of the first reversing valve.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The multi-stage oil cylinder and the auxiliary oil cylinder are synchronously controlled by the second reversing valve to drive the turning frame to rotate, that is, to turn over the garbage bin. During the turning process of the garbage bin, the winch motor is driven to rotate through the first reversing valve, and the winch motor retracts and releases the wire rope, that is, adjusts the position of the garbage bin on the turning frame to slow down the change of the center of gravity of the garbage bin during the turning process, thereby improving safety.

[0014] 2. The third reversing valve controls the on and off of the box cylinder quick connector, thereby increasing the function of distributing oil to the box cylinder.

[0015] 3. In the process of turning over the garbage bin, the telescopic rod of the outrigger oil cylinder is controlled to extend through the fourth reversing valve, driving the outrigger to touch the ground, thereby avoiding rollover in the process of turning over the garbage bin and further improving safety.

[0016] 4. When loading the garbage bin, the winch motor drives the wire rope to pull the garbage bin, and uses the weight of the garbage bin to simultaneously drive the telescopic rods of the multi-stage oil cylinder and the auxiliary oil cylinder to retract, that is, the hydraulic oil in the multi-stage oil cylinder and the auxiliary oil cylinder flows back to the oil tank through the fourteenth oil circuit. At this time, the multi-stage oil cylinder and the auxiliary oil cylinder play a buffering role, which is both energy-saving and safe.

[0017] 5. The on-off of the sixteenth oil circuit is controlled by the second two-position two-way solenoid valve, and the dead weight of the garbage bin is used to drive the winch motor to automatically release the rope, thereby achieving energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a principle diagram of a valve group for carrying a vertical container of the utility model;

[0019] Figure 2 This is an application principle diagram of the valve group for carrying a vertical container of the utility model;

[0020] Figure 3 This is the hydraulic control schematic diagram of the winch motor rope retraction;

[0021] Figure 4 This is the hydraulic control schematic diagram of the winch motor automatically releasing the rope;

[0022] Figure 5 It is the principle diagram of hydraulic control for the upward flipping of the flip frame;

[0023] Figure 6 It is the principle diagram of hydraulic control for the automatic downward turning of the turning frame;

[0024] Figure 7 It is the hydraulic control principle diagram of opening the bottom cover of the garbage bin;

[0025] Figure 8 It is the hydraulic control schematic diagram of the outrigger landing.

[0026] Among them, 1 valve block, 2 first reversing valve, 3 second reversing valve, 4 third reversing valve, 5 fourth reversing valve, 6 first oil circuit, 7 second oil circuit, 8 oil tank, 9 first overflow valve, 10 third oil circuit, 11 fourth oil circuit, 12 winch motor, 13 sixteenth oil circuit, 14 second one-way throttle valve, 15 second two-position two-way solenoid valve, 16 second one-way balancing valve, 17 fifth oil circuit, 18 multi-stage oil cylinder, 19 third one-way throttle valve, 20 sixth oil circuit , 21 the seventh oil circuit, 22 the auxiliary oil cylinder, 23 the first one-way balancing valve, 24 the second overflow valve, 25 the eighth oil circuit, 26 the tenth oil circuit, 27 the box cylinder quick connector, 28 the eleventh oil circuit, 29 the ninth oil circuit, 30 the first two-position two-way solenoid valve, 31 the third overflow valve, 32 the twelfth oil circuit, 33 the thirteenth oil circuit, 34 the outrigger oil cylinder, 35 the fourteenth oil circuit, 36 the fourth overflow valve, 37 the fifteenth oil circuit, 38 the first one-way throttle valve. DETAILED DESCRIPTION

[0027] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0028] like Figure 1-8As shown, a valve group for carrying a vertical container includes a valve block 1, on which a first reversing valve 2, a second reversing valve 3, a third reversing valve 4 and a fourth reversing valve 5 are installed. The first, second, third and fourth reversing valves are all M-type three-position four-way solenoid valves. The P oil port of the first reversing valve is connected to the first oil circuit 6, the T oil port of the first reversing valve is connected to the P oil port of the second reversing valve, the T oil port of the second reversing valve is connected to the second oil circuit 7, the first and second oil circuits are used to connect to an oil tank 8, a first overflow valve 9 is installed between the first and second oil circuits, the A oil port of the first reversing valve is connected to the third oil circuit 10, the B oil port of the first reversing valve is connected to the fourth oil circuit 11, and the third and fourth oil circuits are connected to the oil tank 8. Used to connect the winch motor 12, the third and fourth oil circuits are connected through the sixteenth oil circuit 13, the second one-way throttle valve 14 and the second two-position two-way solenoid valve 15 are installed on the sixteenth oil circuit, the second one-way balancing valve 16 is installed on the third oil circuit, the second one-way balancing valve is located between the sixteenth oil circuit and the A oil port of the first reversing valve, the B oil port of the second reversing valve is connected to the fifth oil circuit 17, the fifth oil circuit is used to connect the multi-stage cylinder 18, the third one-way throttle valve 19 is installed on the fifth oil circuit, the fifth oil circuit is connected to the sixth oil circuit 20, the connection point of the fifth and sixth oil circuits is located between the third one-way throttle valve and the B oil port of the second reversing valve, the A oil port of the second reversing valve is connected to the The seventh oil circuit 21, the sixth and seventh oil circuits are used to connect the auxiliary oil cylinder 22, the first one-way balance valve 23 is installed on the seventh oil circuit, the second overflow valve 24 is installed between the sixth and seventh oil circuits, and the second overflow valve is located between the first one-way balance valve and the auxiliary oil cylinder. The P oil port of the third reversing valve is connected to the second oil circuit through the eighth oil circuit 25, and the A and B oil ports of the third reversing valve are respectively connected to the tenth oil circuit 26. The tenth oil circuit is used to connect the box cylinder quick connector 27. The P oil port of the fourth reversing valve is connected to the T oil port of the third reversing valve through the eleventh oil circuit 28, and the T oil port of the fourth reversing valve is connected to the second oil circuit through the ninth oil circuit 29. The second oil circuit is installed with the first and second The second two-position two-way solenoid valve 30 is provided, the first two-position two-way reversing valve is located between the eighth and ninth oil circuits, the third overflow valve 31 is installed between the eighth and ninth oil circuits, the A oil port of the fourth reversing valve is connected to the twelfth oil circuit 32, the B oil port of the fourth reversing valve is connected to the thirteenth oil circuit 33, the twelfth and thirteenth oil circuits are used to connect to the outrigger cylinder 34, the eighth oil circuit is connected to the fifth oil circuit through the fourteenth oil circuit 35, the connecting point between the fifth and fourteenth oil circuits is located between the sixth oil circuit and the B oil port of the second reversing valve, the fourth overflow valve 36 is installed on the fourteenth oil circuit, the seventh oil circuit is connected to the ninth oil circuit through the fifteenth oil circuit 37, and the first one-way throttle valve 38 is installed on the fifteenth oil circuit.

[0029] The specific working process and principle of the utility model are as follows: the setting pressure of the first relief valve is 24Mpa, the setting pressure of the second relief valve is 6Mpa, the setting pressure of the third relief valve is 18Mpa, the setting pressure of the fourth relief valve is 15Mpa, the setting pressure of the first one-way balancing valve is 8Mpa, and the setting pressure of the second one-way balancing valve is 28Mpa.

[0030] When the garbage bin at the transfer station is full of garbage, the transfer vehicle enters the back-carrying garbage bin. The first step is to start the outrigger cylinder. Only S7 and S9 are energized. The on-board motor drives the oil pump to draw hydraulic oil from the tank. The hydraulic oil enters the rodless chamber of the outrigger cylinder from the thirteenth oil circuit through the P and B oil ports of the fourth reversing valve. The telescopic rod of the outrigger cylinder drives the outrigger to extend until it touches the ground as a supporting point to improve operation safety. The second step is to start the multi-stage cylinder and auxiliary cylinder. Only S3 is energized. The on-board motor drives the oil pump to draw hydraulic oil from the tank. The hydraulic oil enters the fifth oil circuit through the P and B oil ports of the second reversing valve. Part of the hydraulic oil flows along the fifth oil circuit. The hydraulic oil enters the single-return chamber of the multi-stage cylinder, and the other part of the hydraulic oil enters the sixth oil circuit. The hydraulic oil entering the sixth oil circuit first opens the first one-way balance valve, and then enters the rodless chamber of the auxiliary oil cylinder. The telescopic rods of the multi-stage cylinder and the auxiliary oil cylinder extend to drive the tipping frame to turn to the garbage bin until the tipping frame and the garbage bin form an angle of 3-5°. The third step is to start the winch motor. Only S1 is energized, and the on-board motor drives the oil pump to draw hydraulic oil from the oil tank. The hydraulic oil enters the fourth oil circuit through the P and B oil ports of the first reversing valve. The hydraulic oil in the fourth oil circuit first opens the second one-way balance valve, and then enters the B oil port of the winch motor to drive the winch motor to rotate forward. The winch motor drives the wire rope to pull the garbage bin, and the garbage bin is pulled to fit with the flip frame, and the garbage bin is pulled 20-30 cm off the ground. The flip frame carries the garbage bin on its back through the wire rope. The fourth step is to start the multi-stage cylinder and the auxiliary cylinder. Only S4 is energized, and the on-board motor drives the oil pump to draw hydraulic oil from the oil tank. The hydraulic oil enters the rod chamber of the auxiliary cylinder through the seventh oil circuit through the P and A oil ports of the second reversing valve, driving the telescopic rod of the auxiliary cylinder to retract. At the same time, due to the pressure of the garbage bin, the hydraulic oil in the multi-stage cylinder and the hydraulic oil in the rodless chamber of the auxiliary cylinder are collected and returned to the oil tank through the B and T oil ports of the second reversing valve. , when the turning frame rotates to form a 40-50° angle with the horizontal plane, the fifth step is started, and the winch motor is started again. The wire rope pulls the garbage bin to slide on the turning frame. At this time, under the heavy pressure of the garbage bin, the remaining hydraulic oil in the multi-stage cylinder, the hydraulic oil in the rodless cavity of the auxiliary cylinder, and the return oil of the winch motor are gathered. Part of the hydraulic oil returns to the oil tank, and the other part of the hydraulic oil enters the rod cavity of the auxiliary cylinder through the fifteenth and seventh oil circuits. At this time, the auxiliary cylinder and the multi-stage cylinder play a buffering role to achieve a soft landing of the turning frame and the garbage bin. After the turning frame falls completely and the garbage bin is towed into place, the outriggers are retracted through the outrigger cylinders.

[0031] When the transfer vehicle transfers the garbage bin to the garbage disposal station, the first step is to start the outrigger cylinder to drive the outrigger to extend until it touches the ground as a support point. The second step is to start the multi-stage cylinder and the auxiliary cylinder to drive the flip frame to flip up until the flip frame forms an angle of 20-30° with the horizontal plane. The third step is to start the winch motor, only S10 is energized, and the winch motor automatically releases the rope under the action of the garbage bin's own gravity, and the garbage bin slides up and down on the flip frame a proper distance. The fourth step is to open the bottom cover of the garbage bin, only S5 and S9 are energized, and the garbage leaks out from the bottom of the garbage bin. If necessary, the angle between the flip frame and the horizontal plane can be increased with the help of the multi-stage cylinder and the auxiliary cylinder to facilitate the dumping of the garbage in the garbage bin. After dumping, the fifth step is to close the bottom cover of the garbage bin, only S6 and S9 are energized, and then the garbage bin is reset and the outriggers are retracted.

[0032] When the transfer vehicle transports the empty garbage bin back, the first step is to start the outrigger cylinder to drive the outrigger to extend until it touches the ground as a support point. The second step is to start the multi-stage cylinder and the auxiliary cylinder to drive the flip frame to flip up until the flip frame forms an angle of 30-50° with the horizontal plane. The third step is to start the winch motor, only S10 is energized, and the winch motor automatically releases the rope under the action of the garbage bin's own gravity. The garbage bin slides up and down on the flip frame until one side of the bottom cover of the garbage bin touches the ground. The fourth step is to start the multi-stage cylinder and the auxiliary cylinder again to drive the flip frame to flip up until the flip frame forms an angle of 3-5° with the vertical plane, and the center of gravity of the garbage bin is biased toward the ground. The fifth step is to start the winch motor again, only S2 is energized, the winch motor rotates in the opposite direction to release the rope, the top of the garbage bin is not subject to tension and detaches from the flip frame, and the center of gravity of the garbage bin is completely turned to the ground in a vertical state. The winch motor continues to rotate in the opposite direction until the hook of the wire rope detaches from the garbage bin, and then the winch motor rotates forward to collect the rope. Finally, after the outrigger is retracted, the transfer vehicle can evacuate.

Claims

1. A valve group for carrying a vertical container, characterized in that: It includes a valve block, which is equipped with a first reversing valve and a second reversing valve. The first and second reversing valves are both M-type three-position four-way solenoid valves. The P oil port of the first reversing valve is connected to the first oil circuit, the T oil port of the first reversing valve is connected to the P oil port of the second reversing valve, the T oil port of the second reversing valve is connected to the second oil circuit, the first and second oil circuits are used to connect to the oil tank, the A oil port of the first reversing valve is connected to the third oil circuit, the B oil port of the first reversing valve is connected to the fourth oil circuit, the third and fourth oil circuits are used to connect to the winch motor, the B oil port of the second reversing valve is connected to the fifth oil circuit, the fifth oil circuit is used to connect to the multi-stage cylinder, the fifth oil circuit is connected to the sixth oil circuit, the A oil port of the second reversing valve is connected to the seventh oil circuit, and the sixth and seventh oil circuits are used to connect to the auxiliary cylinder.

2. The valve assembly for carrying a vertical container according to claim 1, characterized in that: The valve block is installed with a third reversing valve, which is an M-type three-position four-way solenoid valve. The P oil port of the third reversing valve is connected with the second oil circuit through the eighth oil circuit, and the T oil port of the third reversing valve is connected with the second oil circuit through the ninth oil circuit. The second oil circuit is provided with a first two-position two-way solenoid valve, and the first two-position two-way reversing valve is located between the eighth and ninth oil circuits. The A and B oil ports of the third reversing valve are respectively connected with the tenth oil circuit, and the tenth oil circuit is used to connect to the box cylinder quick connector.

3. The valve assembly for carrying a vertical container according to claim 2, characterized in that: The valve block is installed with a fourth reversing valve, which is an M-type three-position four-way solenoid valve. The T oil port of the fourth reversing valve is connected with the ninth oil circuit, the P oil port of the fourth reversing valve is connected to the T oil port of the third reversing valve through the eleventh oil circuit, the T oil port of the third reversing valve is connected with the second oil circuit via the eleventh oil circuit and the ninth oil circuit, the A oil port of the fourth reversing valve is connected with the twelfth oil circuit, the B oil port of the fourth reversing valve is connected with the thirteenth oil circuit, and the twelfth and thirteenth oil circuits are used to connect with the outrigger cylinder.

4. The valve assembly for carrying a vertical container according to claim 3, characterized in that: The eighth oil circuit is connected with the fifth oil circuit through the fourteenth oil circuit, the connection point between the fifth and fourteenth oil circuits is located between the sixth oil circuit and the B oil port of the second reversing valve, the seventh oil circuit is connected with the ninth oil circuit through the fifteenth oil circuit, and a first one-way throttle valve is arranged on the fifteenth oil circuit.

5. The valve assembly for carrying a vertical container according to claim 4, characterized in that: The seventh oil circuit is provided with a first one-way balancing valve.

6. The valve assembly for carrying a vertical container according to claim 1, characterized in that: The third and fourth oil circuits are connected via a sixteenth oil circuit, and a second one-way throttle valve and a second two-position two-way solenoid valve are provided on the sixteenth oil circuit.

7. The valve assembly for carrying a vertical container according to claim 6, characterized in that: The third oil circuit is provided with a second one-way balancing valve, and the second one-way balancing valve is located between the sixteenth oil circuit and the oil port A of the first reversing valve.

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