Self-loading garbage truck control system and self-loading garbage truck

Abstract

The present invention discloses a control system for a self-loading and unloading garbage truck and a self-loading and unloading garbage truck. This solution includes a slide cylinder, a loading cylinder, a one-way valve, and a plurality of reversing valves, wherein the one-way valve and the plurality of reversing valves are connected to the slide cylinder or the loading cylinder through a pipeline, and when the oil pressure in the rodless cavity of the slide cylinder reaches a threshold value, the oil pressure in the rodless cavity of the loading cylinder is greater than or equal to the oil pressure in the rod cavity of the loading cylinder. In the control system of the present invention, when the oil pressure in the rodless cavity of the slide cylinder reaches a threshold value, it indicates that the loading capacity of the garbage bin of the automatic loading and unloading garbage truck has reached the limit. At this time, the oil pressure in the rodless cavity of the loading cylinder is greater than or equal to the oil pressure in the rod cavity of the loading cylinder, which means that the loading cylinder cannot continue to perform the loading operation. Therefore, the loading operation is stopped when the garbage bin is full, avoiding the phenomenon of garbage leakage and secondary pollution caused by human error in continuing the loading operation after the garbage bin is full.

Description

Technical Field

[0001] The present invention relates to the technical field of self-loading and unloading garbage trucks, and in particular to a self-loading and unloading garbage truck control system and the self-loading and unloading garbage truck. Background Art

[0002] At present, the actions of the scraper mechanism and the loading mechanism of the self-loading garbage truck are usually controlled separately, such as Figure 1 As shown, first, loading mechanism 01 loads the garbage into trash bin 03 through loading port 04. Then, scraper mechanism 02 pushes the garbage into trash bin 03 and compresses it to a certain extent to make room for subsequent garbage loading. Because scraper mechanism 02 and loading mechanism 01 are independently controlled, if the loading capacity of trash bin 03 reaches its limit (i.e., trash bin 03 is full), and loading port 04 is open, if the operator fails to notice the full load and continues to operate loading mechanism 01, the garbage will overflow due to insufficient loading space, causing secondary pollution.

[0003] Therefore, how to reduce secondary pollution from self-loading and unloading garbage trucks has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The invention provides a self-loading and unloading garbage truck control system and a self-loading and unloading garbage truck, so as to reduce secondary pollution caused by the self-loading and unloading garbage truck.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A control system for a self-loading and unloading garbage truck includes a slide cylinder, a loading cylinder, a one-way valve and multiple reversing valves, wherein the one-way valve and the multiple reversing valves are connected to the slide cylinder or the loading cylinder through pipelines, and when the oil pressure in the rodless cavity of the slide cylinder reaches a threshold value, the oil pressure in the rodless cavity of the loading cylinder is greater than or equal to the oil pressure in the rod cavity of the loading cylinder.

[0007] Preferably, in the control system of the self-loading and unloading garbage truck of the present invention, the multiple reversing valves include a first reversing valve, a second reversing valve, a third reversing valve and a fourth reversing valve, wherein:

[0008] The P port of the first reversing valve is connected to the P port of the second reversing valve, the T port of the first reversing valve is connected to the T port of the second reversing valve, the A port of the first reversing valve is connected to the rod chamber of the slide cylinder via a one-way valve, and the B port of the first reversing valve is connected to the oil inlet of the third reversing valve; when the first reversing valve is in the left position, the P port of the first reversing valve is connected to the A port of the first reversing valve, and the T port of the first reversing valve is connected to the B port of the first reversing valve; when the first reversing valve is in the right position, the P port of the first reversing valve is connected to the B port of the first reversing valve, and the T port of the first reversing valve is connected to the A port of the first reversing valve;

[0009] The B port of the second reversing valve is connected to the rodless chamber of the feeding cylinder; when the second reversing valve is in the left position, the P port of the second reversing valve is connected to the A port of the second reversing valve, and the T port of the second reversing valve is connected to the B port of the second reversing valve; when the second reversing valve is in the right position, the P port of the second reversing valve is connected to the B port of the second reversing valve, and the T port of the second reversing valve is connected to the A port of the second reversing valve;

[0010] The oil inlet of the third reversing valve is connected to the B port of the first reversing valve, and the oil outlet of the third reversing valve is connected to the oil inlet of the fourth reversing valve and the rod chamber of the feeding cylinder; when the third reversing valve is in the left position, the oil inlet of the third reversing valve and the oil outlet of the third reversing valve are cut off; when the third reversing valve is in the right position, the oil inlet of the third reversing valve and the oil outlet of the third reversing valve are connected;

[0011] The oil outlet of the fourth reversing valve is connected to the rodless chamber of the skateboard cylinder and the hydraulic control port of the one-way valve; when the fourth reversing valve is in the left position, the oil inlet of the fourth reversing valve and the oil outlet of the fourth reversing valve are cut off; when the fourth reversing valve is in the right position, the oil inlet of the fourth reversing valve and the oil outlet of the fourth reversing valve are connected.

[0012] Preferably, in the control system of the self-loading and unloading garbage truck of the present invention, the first reversing valve, the second reversing valve, the third reversing valve and the fourth reversing valve are solenoid valves.

[0013] Preferably, in the control system of the self-loading and unloading garbage truck of the present invention, when in the loading mode, the second reversing valve and the fourth reversing valve are both located in the right position, and the first reversing valve and the third reversing valve are both located in the left position.

[0014] Preferably, in the control system of the self-loading and unloading garbage truck of the present invention, when in the upward maintenance mode of the feeding mechanism, the second reversing valve and the third reversing valve are located in the right position, and the first reversing valve and the fourth reversing valve are both located in the left position.

[0015] Preferably, in the control system of the self-loading and unloading garbage truck of the present invention, when the loading mechanism is in the downward maintenance mode, the first reversing valve and the third reversing valve are both located in the right position, and the second reversing valve and the fourth reversing valve are both located in the left position.

[0016] Preferably, in the control system of the self-loading and unloading garbage truck of the present invention, when in the upward maintenance mode of the scraper mechanism, the first reversing valve, the third reversing valve and the fourth reversing valve are all located in the right position, and the second reversing valve is located in the left position.

[0017] Preferably, in the control system of the self-loading and unloading garbage truck of the present invention, when the scraper mechanism is in the downward maintenance mode, the third reversing valve and the fourth reversing valve are both located in the right position, and the first reversing valve and the second reversing valve are both located in the left position.

[0018] Preferably, the self-loading and unloading garbage truck control system of the present invention also includes a controller, which controls the first reversing valve, the second reversing valve, the third reversing valve and the fourth reversing valve to operate in the loading mode, the loading mechanism upward maintenance mode, the loading mechanism downward maintenance mode, the scraper mechanism upward maintenance mode or the scraper mechanism downward maintenance mode.

[0019] Preferably, the self-loading and unloading garbage truck control system of the present invention also includes multiple buttons, each button corresponding to one of the loading mode, loading mechanism upward maintenance mode, loading mechanism downward maintenance mode, scraper mechanism upward maintenance mode and scraper mechanism downward maintenance mode through the controller.

[0020] A self-loading and unloading garbage truck is provided, using any of the above-mentioned self-loading and unloading garbage truck control systems.

[0021] As can be seen from the above technical solution, the control system of the present invention indicates that when the oil pressure in the rodless chamber of the slide cylinder reaches a threshold, the loading capacity of the automatic loading and unloading garbage truck has reached its limit. At this point, the oil pressure in the rodless chamber of the loading cylinder is greater than or equal to the oil pressure in the rod chamber of the loading cylinder, which means that the loading cylinder can no longer perform loading operations. Therefore, loading operations cease when the garbage bin is full, avoiding the phenomenon of human error causing garbage leakage and secondary contamination caused by continuing loading after the garbage bin is full. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some examples or embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without inventive work, and the present invention can also be applied to other similar scenarios based on the provided drawings. Unless otherwise apparent from the language context or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0023] Figure 1 A three-dimensional schematic diagram of a self-loading and unloading garbage truck provided by an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of a control system for a self-loading and unloading garbage truck provided by an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of another self-loading and unloading garbage truck control system provided by an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of another self-loading and unloading garbage truck control system provided by an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of a fourth self-loading and unloading garbage truck control system provided by an embodiment of the present invention;

[0028] Among them, 1 is the first reversing valve, 2 is the second reversing valve, 3 is the third reversing valve, 4 is the fourth reversing valve, 5 is the one-way valve, 6 is the feeding cylinder, 7 is the slide cylinder, 8 is the fifth reversing valve, 9 is the controller, and 10 is the button. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to explain the relevant invention and are not intended to limit the invention. The embodiments described are merely some embodiments of the present invention, not all embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0030] See Figure 1 , Self-loading and unloading garbage truck: equipment that loads garbage into garbage bins and transports it to garbage treatment plants, including lifting mechanism, outrigger mechanism, loading mechanism, scraper mechanism, garbage bin, etc.

[0031] Lifting mechanism: Lifting the trash can to the entrance of the trash box is the lifting operation.

[0032] Outrigger mechanism: The component that supports the self-loading and unloading garbage truck, that is, performs the supporting operation.

[0033] Loading mechanism 01: The component that pours the garbage in the garbage can into the garbage box 03, that is, performs the loading operation.

[0034] Scraping mechanism 02: pushes the garbage poured into the entrance 04 of the garbage bin 03 into the garbage bin 03 and compresses the garbage to a certain extent, that is, performs scraping and compression operations.

[0035] Lifting cylinder: When the piston rod of the lifting cylinder extends, it drives the lifting mechanism to perform the lifting operation.

[0036] The outrigger oil cylinder, when the piston rod of the outrigger oil cylinder extends, drives the outrigger mechanism to support, and when the piston rod of the outrigger oil cylinder retracts, drives the outrigger mechanism to retract, that is, drives the outrigger mechanism to perform the supporting operation.

[0037] Loading cylinder: When the piston rod of the loading cylinder is extended, it drives the loading mechanism to perform the loading operation to pour the garbage in the trash can into the trash box 03.

[0038] Slide plate oil cylinder: When the piston rod of the slide plate oil cylinder is extended, it drives the scraper plate mechanism 02 to perform a compression operation to compress the garbage in the garbage bin 03.

[0039] Scraper cylinder: When the piston rod of the scraper cylinder is extended, it drives the scraper plate mechanism to perform the scraping operation to push the garbage net at the entrance 04 of the garbage bin 03 into the interior of the garbage bin 03.

[0040] As can be seen from the background technology description, when the loading capacity of the garbage bin 03 reaches the limit, the garbage bin 03 is full. At this time, the garbage in the garbage bin 03 pushes back the scraping slide mechanism 02 and transmits the force to the slide cylinder that drives the slide mechanism 02 to operate. The corresponding oil pressure in the rodless chamber of the slide cylinder reaches the preset value. Based on this point, the inventor provides a self-loading and unloading garbage truck control system and a self-loading and unloading garbage truck to reduce secondary pollution caused by self-loading and unloading garbage trucks.

[0041] See Figure 2 The self-loading and unloading garbage truck control system provided by the embodiment of the present invention includes a slide cylinder 7, a loading cylinder 6, a one-way valve 5 and multiple reversing valves, wherein the one-way valve 5 and the multiple reversing valves are connected to the slide cylinder 7 or the loading cylinder 6 through a pipeline, and when the oil pressure in the rodless cavity of the slide cylinder 7 reaches a threshold value, the oil pressure in the rodless cavity of the loading cylinder 6 is greater than or equal to the oil pressure in the rod cavity of the loading cylinder 6.

[0042] In the self-loading garbage truck control system of the present invention, when the oil pressure in the rodless chamber of the slide cylinder 7 reaches a threshold, it indicates that the garbage bin of the automatic loading and unloading garbage truck has reached its maximum load capacity. At this point, the oil pressure in the rodless chamber of the loading cylinder 6 is greater than or equal to the oil pressure in the rod chamber of the loading cylinder 6, which means that the loading cylinder 6 can no longer perform the loading operation. Therefore, the loading cylinder 6 stops loading when the garbage bin is full, avoiding the phenomenon of human error causing garbage leakage and secondary pollution caused by continuing to load the garbage bin after it is full.

[0043] In the control system of the self-loading and unloading garbage truck of the present invention, the multiple reversing valves include a first reversing valve 1 , a second reversing valve 2 , a third reversing valve 3 and a fourth reversing valve 4 .

[0044] The P port of the first reversing valve 1 is connected to the P port of the second reversing valve 2, the T port of the first reversing valve 1 is connected to the T port of the second reversing valve 2, the A port of the first reversing valve 1 is connected to the rod chamber of the slide cylinder 7 via the one-way valve 5, and the B port of the first reversing valve 1 is connected to the oil inlet of the third reversing valve 3; when the first reversing valve 1 is in the left position, the P port of the first reversing valve 1 is connected to the A port of the first reversing valve 1, and the T port of the first reversing valve 1 is connected to the B port of the first reversing valve 1; when the first reversing valve 1 is in the right position, the P port of the first reversing valve 1 is connected to the B port of the first reversing valve 1, and the T port of the first reversing valve 1 is connected to the A port of the first reversing valve 1.

[0045] The B port of the second reversing valve 2 is connected to the rodless chamber of the feeding cylinder 6; when the second reversing valve 2 is in the left position, the P port of the second reversing valve 2 is connected to the A port of the second reversing valve 2, and the T port of the second reversing valve 2 is connected to the B port of the second reversing valve 2; when the second reversing valve 2 is in the right position, the P port of the second reversing valve 2 is connected to the B port of the second reversing valve 2, and the T port of the second reversing valve 2 is connected to the A port of the second reversing valve 2.

[0046] The oil inlet of the third reversing valve 3 is connected with the B port of the first reversing valve 1, and the oil outlet of the third reversing valve 3 is connected with the oil inlet of the fourth reversing valve 4 and the rod chamber of the feeding cylinder 6; when the third reversing valve 3 is in the left position, the oil inlet of the third reversing valve 3 and the oil outlet of the third reversing valve 3 are cut off; when the third reversing valve 3 is in the right position, the oil inlet of the third reversing valve 3 and the oil outlet of the third reversing valve 3 are connected.

[0047] The oil outlet of the fourth reversing valve 4 is connected to the rodless chamber of the slide cylinder 7 and the hydraulic control port of the one-way valve 5; when the fourth reversing valve 4 is in the left position, the oil inlet of the fourth reversing valve 4 and the oil outlet of the fourth reversing valve 4 are cut off; when the fourth reversing valve 4 is in the right position, the oil inlet of the fourth reversing valve 4 and the oil outlet of the fourth reversing valve 4 are connected.

[0048] The first reversing valve 1, the second reversing valve 2, the third reversing valve 3, and the fourth reversing valve 4 can be hydraulically controlled reversing valves or reversing valves. In some embodiments of the present invention, the first reversing valve 1, the second reversing valve 2, the third reversing valve 3, and the fourth reversing valve 4 are solenoid valves. Setting them as solenoid valves facilitates control.

[0049] The above structure of the present invention has at least one working mode. For example, when in the loading mode, the second reversing valve 2 and the fourth reversing valve 4 are both in the right position, and the first reversing valve 1 and the third reversing valve 3 are both in the left position. Hydraulic oil enters the rodless chamber of the loading cylinder 6 through the second reversing valve 2. The hydraulic oil pushes the loading cylinder 6 to extend to perform the loading operation. The hydraulic oil in the rod chamber of the loading cylinder 6 enters the rodless chamber of the slide cylinder 7 through the fourth reversing valve 4. The hydraulic oil in the rodless chamber of the slide cylinder 7 enters the control port of the hydraulically controlled one-way valve 5 to open the hydraulically controlled one-way valve 5. The rod chamber of the slide cylinder 7 is connected to the oil tank through the hydraulically controlled one-way valve 5 and the first reversing valve 1. Driven by the hydraulic oil, the slide cylinder 7 extends to compress and push the garbage in the garbage bin into the garbage bin to reserve loading space for the garbage being loaded.

[0050] When the trash bin is not fully loaded, the reverse thrust F of the garbage in the trash bin on the slide cylinder 7 is less than the threshold of the system, and the loading cylinder 6 continues to perform the loading operation under the push of the hydraulic oil. The slide cylinder 7 continues to compress and push the garbage into the trash bin to reserve loading space for the garbage being loaded.

[0051] When the trash bin is full, the reverse thrust F of the garbage in the trash bin on the slide cylinder 7 is greater than or equal to the system set working pressure. The hydraulic oil of the hydraulic control reversing valve is insufficient to continue to push the loading cylinder 6 to load the material, and the loading operation stops. When the trash bin is full, the loading operation stops to achieve automatic control.

[0052] When the feeding mechanism is in upward maintenance mode, the second and third reversing valves 2 and 3 are in the right position, while the first and fourth reversing valves 1 and 4 are in the left position. The rod chamber of the feeding cylinder 6 is now connected to the oil tank via the third and first reversing valves 3 and 1. Hydraulic oil enters the rodless chamber of the feeding cylinder 6 through the second and third reversing valves 2 and 3, pushing the feeding cylinder 6 to extend for upward maintenance of the feeding mechanism.

[0053] When the feeding mechanism is in downward maintenance mode, the controller 9 controls the first and third reversing valves 1 and 3 to the right, and the second and fourth reversing valves 2 and 4 to the left. At this point, the rod chamber of the feeding cylinder 6 is connected to the hydraulic oil source via the third reversing valve 3 and the first reversing valve 1, while the rodless chamber of the feeding cylinder 6 is connected to the oil tank via the second reversing valve 2. Hydraulic oil enters the rod chamber of the feeding cylinder 6 through the first and third reversing valves 1 and 3, pushing the feeding cylinder 6 back to allow downward maintenance of the feeding mechanism.

[0054] When the scraper mechanism is in upward maintenance mode, the first, third, and fourth reversing valves 1, 3, and 4 are all in the right position, and the second reversing valve 2 is in the left position. The rodless chamber of the slide cylinder 7 is connected to the hydraulic oil source via the third and fourth reversing valves 3, 4. At this time, the hydraulically controlled one-way valve 5 is opened under the control of the hydraulic oil, and the rod chamber of the slide cylinder 7 is connected to the oil tank via the hydraulically controlled one-way valve 5 and the first reversing valve 1. Hydraulic oil enters the rodless chamber of the slide cylinder 7 through the first, third, and fourth reversing valves 3, 4, and pushes the lower slide cylinder 7 to extend, allowing for upward maintenance of the scraper mechanism.

[0055] When the scraper mechanism is in downward maintenance mode, the third and fourth reversing valves 3 and 4 are both in the right position, and the first and second reversing valves 1 and 2 are both in the left position. The rod chamber of the slide cylinder 7 is connected to the hydraulic oil source via the hydraulically controlled one-way valve 5, while the rodless chamber of the slide cylinder 7 is connected to the oil tank via the third reversing valve 3, the fourth reversing valve 4, and the first reversing valve 1. Hydraulic oil enters the rodless chamber of the slide cylinder 7 through the first reversing valve 1, the third reversing valve 3, and the fourth reversing valve 4. Driven by the hydraulic oil, the slide cylinder 7 retracts to allow upward maintenance of the scraper mechanism.

[0056] See Figure 3To optimize the above technical solution, the self-loading and unloading garbage truck control system of the present invention further includes a controller 9. Controller 9 controls the operation of the first reversing valve 1, the second reversing valve 2, the third reversing valve 3, and the fourth reversing valve 4 in the loading mode, the loading mechanism upward maintenance mode, the loading mechanism downward maintenance mode, the scraper mechanism upward maintenance mode, or the scraper mechanism downward maintenance mode. It should be noted that the controller 9 can be the controller 9 in the existing self-loading and unloading garbage truck control system or an additional controller 9. Any controller 9 is acceptable as long as it can control the above-mentioned reversing valves.

[0057] When in the feeding mode, the controller 9 controls the electromagnet DT4 of the second reversing valve 2 and the fourth reversing valve 4 to be energized, the second reversing valve 2 switches to the right working position, and the fourth reversing valve 4 switches to the right working position. At this time, the rod chamber of the feeding cylinder 6 is connected with the rodless chamber of the skateboard cylinder 7 through the fourth reversing valve 4, and the hydraulic oil enters the rodless chamber of the feeding cylinder 6 through the second reversing valve 2 to push the feeding cylinder 6 to extend for feeding operation. The hydraulic oil in the rod chamber of the feeding cylinder 6 enters the rodless chamber of the skateboard cylinder 7 through the fourth reversing valve 4, and the hydraulic oil in the rodless chamber of the skateboard cylinder 7 enters the control port of the hydraulic control one-way valve 5 to open the hydraulic control one-way valve 5. The rod chamber of the skateboard cylinder 7 is connected to the oil tank through the hydraulic control one-way valve 5 and the first reversing valve 1. The skateboard cylinder 7 extends under the push of the hydraulic oil to compress and push the garbage in the garbage bin into the inside of the garbage bin to reserve loading space for the garbage being loaded.

[0058] When the trash bin is not fully loaded, the reverse thrust F exerted by the trash on the slide cylinder 7 is less than the system's set working pressure, and the loading cylinder 6 continues to load the trash under the push of hydraulic oil. The slide cylinder 7 continues to compress and push the trash into the trash bin to reserve loading space for the trash being loaded. When the trash bin is fully loaded, the reverse thrust F exerted by the trash on the slide cylinder 7 is greater than or equal to the system's set working pressure, and the hydraulic oil in the hydraulically controlled reversing valve is insufficient to continue pushing the loading cylinder 6 to load the trash, causing the loading operation to cease. Automatic control is achieved when the trash bin is fully loaded.

[0059] When the feeding mechanism is in the upward maintenance mode, when the feeding cylinder 6 needs to act alone: ​​the controller 9 controls the electromagnet DT4 of the second reversing valve 2 and the third reversing valve 3 to be energized, the second reversing valve 2 switches to the right working position, and the third reversing valve 3 switches to the right working position. At this time, the rod chamber of the feeding cylinder 6 is connected to the oil tank through the third reversing valve 3 and the first reversing valve 1, and the hydraulic oil enters the rodless chamber of the feeding cylinder 6 through the second reversing valve 2 to push the feeding cylinder 6 to extend.

[0060] When the feeding mechanism is in the downward maintenance mode, the controller 9 controls the electromagnet DT2 of the first reversing valve 1 to be energized, the electromagnet DT3 of the second reversing valve 2 to be energized, and the third reversing valve 3 to be energized. The first reversing valve 1 and the third reversing valve 3 are switched to the right working position, and the second reversing valve 2 is switched to the left working position. At this time, the rod chamber of the feeding cylinder 6 is connected to the hydraulic oil source through the third reversing valve 3 and the first reversing valve 1, and the rodless chamber of the feeding cylinder 6 is connected to the oil tank through the second reversing valve 2. The hydraulic oil enters the rod chamber of the feeding cylinder 6 to push the feeding cylinder 6 to retract.

[0061] When the slide mechanism is in the upward maintenance mode, when the slide cylinder 7 needs to act alone: ​​the controller 9 controls the electromagnet DT2 of the first reversing valve 1, the third reversing valve 3, and the fourth reversing valve 4 to be energized, the first reversing valve 1 switches to the right working position, and the rodless chamber of the slide cylinder 7 is connected to the hydraulic oil source through the third reversing valve 3 and the fourth reversing valve 4. At this time, the hydraulically controlled one-way valve 5 is opened under the control of the hydraulic oil, and the rod chamber of the slide cylinder 7 is connected to the oil tank through the hydraulically controlled one-way valve 5 and the first reversing valve 1. The slide cylinder 7 is extended under the push of the hydraulic oil.

[0062] When the slide mechanism is in the downward maintenance mode, the controller 9 controls the electromagnet DT1 of the first reversing valve 1, the third reversing valve 3, and the fourth reversing valve 4 to be energized, the first reversing valve 1 switches to the left working position, and the rod chamber of the slide cylinder 7 is connected to the hydraulic oil source through the hydraulic control one-way valve 5, and the rodless chamber of the slide cylinder 7 is connected to the oil tank through the third reversing valve 3, the fourth reversing valve 4 and the first reversing valve 1. The slide cylinder 7 retracts under the push of the hydraulic oil.

[0063] See Figure 4 In some embodiments of the present invention, the self-loading and unloading garbage truck control system further includes a plurality of buttons 10. Each button 10 corresponds to one of the following modes: a loading mode, a loading mechanism upward maintenance mode, a loading mechanism downward maintenance mode, a scraper mechanism upward maintenance mode, and a scraper mechanism downward maintenance mode, through the controller 9. The first button corresponds to the loading mode, the second button corresponds to the loading mechanism upward maintenance mode, the third button corresponds to the loading mechanism downward maintenance mode, the fourth button corresponds to the scraper mechanism upward maintenance mode, and the fifth button corresponds to the scraper mechanism downward maintenance mode.

[0064] It should be noted that the second reversing valve 2 can also be replaced by a fifth reversing valve 8, such as Figure 5 As shown, the P port of the fifth reversing valve 8 is connected to the P port of the first reversing valve 1, the T port of the fifth reversing valve 8 is connected to the T port of the first reversing valve 1, and the A port of the fifth reversing valve 8 is connected to the rodless chamber of the feeding cylinder 6. Please refer to the remaining connection relationship Figure 2 .

[0065] The present invention also discloses a self-loading garbage truck, comprising a garbage bin, a scraper mechanism, and a loading mechanism. The self-loading garbage truck utilizes any of the aforementioned self-loading garbage truck control systems. Since the aforementioned self-loading garbage truck control system has the aforementioned beneficial effects, a self-loading garbage truck utilizing the self-loading garbage truck control system also has corresponding effects, which will not be further described here.

[0066] It should be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0067] It should be understood that the terms "system," "device," "unit," and / or "module" used in the present invention are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0068] As used herein and in the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list; a method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0069] In the description of the embodiments of the present invention, unless otherwise specified, " / " represents or. For example, A / B can represent A or B. "And / or" in this document is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present invention, "plurality" means two or more than two.

[0070] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0071] Flowcharts are used in this disclosure to illustrate the operations performed by systems according to embodiments of the present invention. It should be understood that the preceding and following operations do not necessarily need to be performed in exact order. Instead, the steps may be processed in reverse order or simultaneously. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0072] The above description is merely an illustration of preferred embodiments of the present invention and the technical principles employed, and is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. The scope of the invention is not limited to technical solutions formed by a specific combination of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the aforementioned inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features having similar functions disclosed in this invention.

Claims

1. A self-loading and unloading garbage truck control system, characterized in that: It includes a slide cylinder, a feeding cylinder, a one-way valve and a plurality of reversing valves, wherein the one-way valve and the plurality of reversing valves are connected to the slide cylinder or the feeding cylinder through pipelines, and when the oil pressure in the rodless cavity of the slide cylinder reaches a threshold value, the oil pressure in the rodless cavity of the feeding cylinder is greater than or equal to the oil pressure in the rod cavity of the feeding cylinder; The plurality of reversing valves include a first reversing valve, a second reversing valve, a third reversing valve and a fourth reversing valve, wherein: The P port of the first reversing valve is connected to the P port of the second reversing valve, the T port of the first reversing valve is connected to the T port of the second reversing valve, the A port of the first reversing valve is connected to the rod chamber of the slide cylinder via the one-way valve, and the B port of the first reversing valve is connected to the oil inlet of the third reversing valve; when the first reversing valve is in the left position, the P port of the first reversing valve is connected to the A port of the first reversing valve, and the T port of the first reversing valve is connected to the B port of the first reversing valve; when the first reversing valve is in the right position, the P port of the first reversing valve is connected to the B port of the first reversing valve, and the T port of the first reversing valve is connected to the A port of the first reversing valve; The B port of the second reversing valve is connected to the rodless chamber of the feeding cylinder; when the second reversing valve is in the left position, the P port of the second reversing valve is connected to the A port of the second reversing valve, and the T port of the second reversing valve is connected to the B port of the second reversing valve; when the second reversing valve is in the right position, the P port of the second reversing valve is connected to the B port of the second reversing valve, and the T port of the second reversing valve is connected to the A port of the second reversing valve; The oil inlet of the third reversing valve is connected to the B port of the first reversing valve, and the oil outlet of the third reversing valve is connected to the oil inlet of the fourth reversing valve and the rod chamber of the feeding cylinder; when the third reversing valve is in the left position, the oil inlet of the third reversing valve and the oil outlet of the third reversing valve are cut off; when the third reversing valve is in the right position, the oil inlet of the third reversing valve and the oil outlet of the third reversing valve are connected; The oil outlet of the fourth reversing valve is connected to the rodless chamber of the slide cylinder and the hydraulic control port of the one-way valve; when the fourth reversing valve is in the left position, the oil inlet of the fourth reversing valve and the oil outlet of the fourth reversing valve are cut off; when the fourth reversing valve is in the right position, the oil inlet of the fourth reversing valve and the oil outlet of the fourth reversing valve are connected.

2. The self-loading and unloading garbage truck control system according to claim 1, characterized in that: The first reversing valve, the second reversing valve, the third reversing valve and the fourth reversing valve are solenoid valves.

3. The self-loading and unloading garbage truck control system according to claim 2, characterized in that: When in the loading mode, the second reversing valve and the fourth reversing valve are both located in the right position, and the first reversing valve and the third reversing valve are both located in the left position.

4. The self-loading and unloading garbage truck control system according to claim 3, characterized in that: When the feeding mechanism is in an upward maintenance mode, the second reversing valve and the third reversing valve are located in the right position, and the first reversing valve and the fourth reversing valve are both located in the left position.

5. The self-loading and unloading garbage truck control system according to claim 4, characterized in that: When the feeding mechanism is in a downward maintenance mode, the first reversing valve and the third reversing valve are both located in the right position, and the second reversing valve and the fourth reversing valve are both located in the left position.

6. The self-loading and unloading garbage truck control system according to claim 5, characterized in that: When the scraper mechanism is in an upward maintenance mode, the first reversing valve, the third reversing valve and the fourth reversing valve are all located in the right position, and the second reversing valve is located in the left position.

7. The self-loading and unloading garbage truck control system according to claim 6, characterized in that: When the scraper mechanism is in a downward maintenance mode, the third reversing valve and the fourth reversing valve are both located in the right position, and the first reversing valve and the second reversing valve are both located in the left position.

8. The self-loading and unloading garbage truck control system according to claim 7, characterized in that: It also includes a controller, which controls the first reversing valve, the second reversing valve, the third reversing valve and the fourth reversing valve to operate in the feeding mode, the feeding mechanism upward maintenance mode, the feeding mechanism downward maintenance mode, the scraper mechanism upward maintenance mode or the scraper mechanism downward maintenance mode.

9. The self-loading and unloading garbage truck control system according to claim 8, characterized in that: It also includes multiple buttons, each button corresponds to one of the feeding mode, the feeding mechanism upward maintenance mode, the feeding mechanism downward maintenance mode, the scraper mechanism upward maintenance mode and the scraper mechanism downward maintenance mode through the controller.

10. A self-loading and unloading garbage truck, characterized in that: The self-loading and unloading garbage truck control system according to any one of claims 1 to 9 is applied.

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