Protective device for lifting frame of excrement transfer trolley

Abstract

The utility model belongs to the technical field of lifting frame equipment, and relates to a lifting frame protection device of a feces transfer trolley, which comprises a lifting component and a bottom plate, two angle adjusting components are mounted in the bottom plate, each angle adjusting component comprises an outer cylinder fixedly connected in the bottom plate, an inner rod is inserted into the outer cylinder, and a buffer component is slidably connected in the outer cylinder. The buffer assembly comprises a moving plug, and a limiting assembly is slidably connected into the moving plug. The limiting assembly comprises a piston fixedly connected with the strong spring, a valve element is connected into the piston in a rolling mode, a valve hole is formed in the valve element, a fixing rod rotationally connected with the piston is fixedly connected to the upper end of the valve element, a gear is fixedly connected to the upper end of the fixing rod, and a toothed plate meshed with the gear is slidably connected to the piston. According to the device, when the hydraulic cylinder breaks down, due to the fact that the moving speed of the moving block is limited, the car hopper can only descend slowly, and the safety of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting frame equipment, in particular to a lifting frame protection device for a fecal sewage transfer vehicle. Background Art

[0002] The hopper of a fecal sewage transfer vehicle is usually made of corrosion-resistant metal or high-strength plastic, with a large capacity and sealing performance. During actual transportation, workers will use special equipment to load feces or sewage into the hopper to ensure its safe transportation. The hopper is designed to avoid leakage and is often equipped with devices such as a sealing cover and a leak-proof valve. During the process of cleaning and transferring waste, the hopper of the fecal sewage transfer vehicle can effectively load the dirt and safely transport it to the treatment site, minimizing the impact on the environment and ensuring public health and environmental protection. After the cleaning work is completed, the hopper must be thoroughly cleaned and disinfected to ensure that cross-contamination and hygiene problems will not occur during the next use.

[0003] CN201921014307.1 provides a fecal sewage cross-region transfer vehicle for livestock husbandry biosafety, including a main frame, a sub-frame fixedly connected to the main frame, a turntable arranged on the sub-frame, a hydraulic lifting mechanism arranged on the turntable, and a tank body connected to the hydraulic lifting mechanism. A slewing drive mechanism for driving the turntable to rotate is arranged on the sub-frame, and the tank body is arranged at the upper end of the hydraulic lifting mechanism; a transmission mechanism for transmitting fecal sewage is arranged inside the tank body. The fecal sewage cross-region transfer vehicle for livestock husbandry biosafety provided by the utility model ensures efficient cleaning and biosafety during the traditional cross-region transportation of livestock husbandry fecal sewage.

[0004] However, during the lifting process of the hopper in the existing dry toilet fecal hopper cleaning vehicle, once a failure occurs in the frame hydraulic device, it will cause the hopper to quickly descend or flip, which is likely to cause harm to nearby personnel. Therefore, the applicant proposes a lifting frame protection device for a fecal sewage transfer vehicle. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a lifting frame protection device for a fecal sewage transfer vehicle to solve the problem of easy harm to nearby personnel once a failure occurs in the frame hydraulic device as mentioned in the above background art.

[0006] The technical solution of the utility model is as follows:

[0007] It includes a lifting assembly, the driving end of the lifting assembly is connected to a hopper, the lifting assembly includes a bottom plate, two angle adjustment assemblies are installed inside the bottom plate, each angle adjustment assembly includes an outer cylinder fixedly connected inside the bottom plate, an inner rod is inserted on the outer cylinder, a buffer assembly is slidably connected inside the outer cylinder, the buffer assembly includes a moving plug, and a limiting assembly is slidably connected inside the moving plug;

[0008] The limiting component includes a piston fixedly connected to a strong spring. A valve core is rotatably connected inside the piston. A valve hole is drilled in the valve core. The upper end of the valve core is fixedly connected to a fixed rod rotatably connected to the piston. The upper end of the fixed rod is fixedly connected to a gear. A rack meshing with the gear is slidably connected to the piston. Both ends of the rack penetrate through the piston and are fixedly connected to spring plates. A return spring is fixedly connected between one of the spring plates and the side wall of the piston. Drain holes communicating with the valve hole are drilled in both the front and rear side walls of the valve core.

[0009] A backwashing component is arranged at a position of the hopper away from the feeding port. The backwashing component is used to clean the stains on the inner wall of the hopper and wash them down to the feeding port for discharge.

[0010] Furthermore, the buffer component further includes transmission holes drilled in the left and right side walls of the moving plug. One end of the inner rod close to the moving plug is fixedly connected to a fixing plate. A short rod is fixedly connected between the fixing plate and the moving plug. A limiting component is slidably connected inside the moving plug. A strong spring is fixedly connected between the fixing plate and the limiting component.

[0011] By arranging the limiting component, the moving speed of the moving plug can be restricted through the limitation of the aperture size of the valve hole, thereby slowing down the lifting speed of the hopper and avoiding the rapid flipping and descending of the hopper when the hydraulic cylinder of the vehicle frame fails.

[0012] Furthermore, the lifting component further includes a hydraulic cylinder rotatably connected to the inner wall of the lower side of the bottom plate. A fixed shaft is fixedly connected to the bottom plate. Two rotating sleeves are rotatably connected to the fixed shaft. The upper ends of the two rotating sleeves are fixedly connected to the hopper. The upper end of the hydraulic cylinder is hinged to the lower side wall of the hopper. The angle adjustment component further includes a moving block fixedly connected to the end of the inner rod, and the moving block is slidably connected inside the bottom plate. A connecting rod is hinged between the moving block and the hopper.

[0013] By arranging the lifting component and the angle adjustment component, the hopper can be easily controlled to lift, and at the same time, the angle of the hopper can be controlled by using the angle adjustment component.

[0014] The backwashing component includes a water inlet arranged on the outer wall of the hopper. The other end of the water inlet is communicated with a substrate. The substrate is fixed to the inner wall of the hopper away from the feeding port. A plurality of groups of spray heads are arranged on the outer surface edge of the substrate. The water source sprayed by the spray heads is used to clean the stains on the inner wall of the hopper. The spray ports of the spray heads face the inner walls around the hopper.

[0015] The present utility model provides a lifting vehicle frame protection device for a manure transfer vehicle through improvement. Compared with the prior art, it has the following improvements and advantages:

[0016] First: For the present utility model, when a failure occurs in the hydraulic cylinder, since the moving speed of the moving block is restricted, the hopper can only descend slowly, effectively improving its safety.

[0017] Second: The present utility model can not only facilitate the staff to easily control the lifting of the hopper, but also improve the stability of the hopper during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further explained below with reference to the drawings and embodiments:

[0019] Figure 1 is the three-dimensional view of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the lifting assembly in the present utility model;

[0021] Figure 3 is the structural schematic diagram of the angle adjustment assembly in the present utility model;

[0022] Figure 4 is the structural schematic diagram of the outer cylinder part in the present utility model;

[0023] Figure 5 is the structural schematic diagram of the buffer assembly in the present utility model;

[0024] Figure 6 is the structural schematic diagram of the limit assembly in the present utility model;

[0025] Figure 7 is the state diagram of the present utility model after the valve core rotates;

[0026] Figure 8 is the structural schematic diagram of the backflush assembly in the present utility model.

[0027] Description of the reference numerals in the drawings:

[0028] 1. Lifting assembly; 101. Bottom plate; 102. Hydraulic cylinder; 103. Fixed shaft; 104. Rotating sleeve; 105. Hopper;

[0029] 2. Angle adjustment assembly; 201. Outer cylinder; 202. Inner rod; 203. Moving block; 204. Connecting rod;

[0030] 3. Buffer assembly; 301. Moving plug; 302. Transmission hole; 303. Fixed plate; 304. Short rod; 305. Strong spring;

[0031] 4. Limit assembly; 401. Piston; 402. Valve core; 403. Valve hole; 404. Fixed rod; 405. Gear; 406. Rack; 407. Spring plate; 408. Return spring; 409. Oil drain hole;

[0032] 5. Recoil assembly; 501. Water inlet; 502. Substrate; 503. Sprinkler head. Specific embodiments

[0033] The following will be combined with the attached Figures 1 to 7 The present utility model will be described in detail. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0034] The present utility model provides a lifting frame protection device for a fecal sewage transfer vehicle through improvement, as Figure 1 - Figure 4 shown, including a lifting assembly 1. The driving end of the lifting assembly 1 is connected to a hopper 105. The lifting assembly 1 includes a bottom plate 101. Two angle adjustment assemblies 2 are installed inside the bottom plate 101. The angle adjustment assembly 2 includes an outer cylinder 201, and the outer cylinder 201 is fixedly connected inside the bottom plate 101. An inner rod 202 is inserted into the outer cylinder 201. A buffer assembly 3 is slidably connected inside the outer cylinder 201. The buffer assembly 3 includes a moving plug 301. Transmission holes 302 are drilled on both the left and right side walls of the moving plug 301. One end of the inner rod 202 close to the moving plug 301 is fixedly connected to a fixing plate 303. A short rod 304 is fixedly connected between the fixing plate 303 and the moving plug 301. A limiting assembly 4 is slidably connected inside the moving plug 301. A strong spring 305 is fixedly connected between the opposite side walls of the fixing plate 303 and the limiting assembly 4.

[0035] In this embodiment: When the hopper 105 is normally flipped, the hopper 105 drives the moving block 203 to move through the connecting rod 204, so that the moving block 203 can drive the buffer assembly 3 to move inside the outer cylinder 201 through the inner rod 202, and the flipping speed of the hopper 105 is proportional to the moving speed of the buffer assembly 3. Since the outer cylinder 201 is filled with hydraulic oil, when the moving plug 301 moves, the hydraulic oil will be transmitted from one side of the moving plug 301 to the other side through the transmission hole 302 and the limiting assembly 4. At this time, due to the limitation of the transmission flow rate of the limiting assembly 4 for the moving plug 301, the moving speed of the moving plug 301 is limited, so that the moving speed of the moving block 203 is limited. When the hydraulic cylinder 102 fails, due to the limitation of the moving speed of the moving block 203, the hopper 105 can only slowly descend, effectively improving its safety.

[0036] Furthermore, as Figure 8As shown in the figure, a backwashing assembly 5 is provided at a position of the hopper 105 away from the blanking port. The backwashing assembly 5 is used to clean the stains on the inner wall of the hopper 105 and flush them towards the blanking port for discharge. The backwashing assembly 5 includes a water inlet 501 provided on the outer wall of the hopper 105. The other end of the water inlet 501 is communicated with a substrate 502. The substrate 502 is fixed to the inner wall of the hopper 105 away from the blanking port. A plurality of groups of water spray nozzles 503 are provided on the outer surface edge of the substrate 502. The water source sprayed by the water spray nozzles 503 is used to clean the stains on the inner wall of the hopper 105. The spray ports of the water spray nozzles 503 face the inner walls around the hopper 105, ensuring that after the hopper 105 is tilted for discharging, the water spray nozzles 503 can perform backwashing on the hopper 105 to ensure that the internal sewage and feces are fully discharged, facilitating the subsequent storage hygiene of the equipment.

[0037] In the above embodiment, in order to enable the hopper 105 to automatically flip, the following method can be adopted for implementation:

[0038] In a preferred embodiment, the lifting assembly 1 further includes a hydraulic cylinder 102 rotatably connected to the inner wall of the lower side of the bottom plate 101. The structure and principle of the hydraulic cylinder 102 are both prior arts and will not be elaborated here. A fixed shaft 103 is fixedly connected to the bottom plate 101. Two rotating sleeves 104 are rotatably connected to the fixed shaft 103. The upper ends of the two rotating sleeves 104 are fixedly connected to the hopper 105. The upper end of the hydraulic cylinder 102 is hinged to the lower side wall of the hopper 105.

[0039] In this embodiment, when used in the normal state, the staff starts the hydraulic cylinder 102. The hydraulic cylinder 102 extends under the action of hydraulic pressure and pushes the hopper 105 to move upward, enabling the hopper 105 to unload materials. At the same time, the hydraulic cylinder 102 itself will also tilt. When the hopper 105 needs to descend, only need to control the hydraulic cylinder 102 to retract to pull the hopper 105.

[0040] The angle adjustment assembly 2 further includes a moving block 203 fixedly connected to the end of the inner rod 202. The moving block 203 is slidably connected inside the bottom plate 101. A connecting rod 204 is hinged between the moving block 203 and the hopper 105.

[0041] When the carriage 105 rises, the lower side wall of the carriage 105 will pull the moving block 203 through the connecting rod 204. At this time, the moving block 203 will move towards the outer cylinder 201. The moving block 203 will drive the buffer assembly 3 to move inside the outer cylinder 201 through the inner rod 202, enabling the hydraulic oil inside the outer cylinder 201 to pass from one side of the valve hole 403 of the inner limit component 4 in the moving plug 301 to the other side. Under normal conditions, since the moving speed of the moving block 203 is not fast, the aperture of the valve hole 403 can support the flow rate of the hydraulic oil at this time, which causes the piston 401 not to be subjected to a large pressure. The piston 401 will not move under the support of the strong spring 305. When the carriage 105 descends, the lower side wall of the carriage 105 will push the moving block 203 through the connecting rod 204, causing the moving block 203 to move in the opposite direction of the outer cylinder 201.

[0042] Reference Figure 5 and Figure 7 , in a preferred embodiment, the limit component 4 includes a piston 401 fixedly connected to the strong spring 305. A valve core 402 is rotatably connected inside the piston 401. A valve hole 403 is drilled on the valve core 402. The upper end of the valve core 402 is fixedly connected to a fixed rod 404 rotatably connected to the piston 401. The upper end of the fixed rod 404 is fixedly connected to a gear 405. A rack 406 meshing with the gear 405 is slidably connected to the piston 401. Both ends of the rack 406 penetrate through the piston 401 and are fixedly connected to spring plates 407. A return spring 408 is fixedly connected between one of the spring plates 407 and the side wall of the piston 401. Drain holes 409 communicating with the valve hole 403 are drilled on both the front and rear side walls of the valve core 402.

[0043] In this embodiment: When the moving plug 301 moves, the hydraulic oil inside the outer cylinder 201 will pass through the valve hole 403 in the limiting component 4. Due to the limitation of the aperture size of the valve hole 403, the moving speed of the moving plug 301 is restricted. When the hydraulic cylinder 102 of the vehicle frame fails, the dump truck body 105 will show two situations. One is that the dump truck body 105 will lose support and quickly drop. The other is that after the dump truck body 105 is in the inclined state of unloading, it will quickly flip due to the loss of the pulling force of the hydraulic cylinder 102. When these two situations occur, the dump truck body 105 drives the inner rod 202 to move through the connecting rod 204, so that the inner rod 202 drives the buffer component 3 to quickly move inside the outer cylinder 201. At this time, the rapid movement of the moving plug 301 will cause the hydraulic oil inside the outer cylinder 201 to not quickly pass through the valve hole 403, which makes the hydraulic oil pressures on both sides of the piston 401 different and causes the piston 401 to move. When the piston 401 is close to the inner side wall of the moving plug 301, the spring plate 407 is pushed by the inner side wall of the moving plug 301 to drive the toothed plate 406 to move, so that the toothed plate 406 drives the gear 405 to rotate. The gear 405 will drive the valve hole 403 to rotate through the fixed rod 404, so that the hydraulic oil can only pass through the oil drain hole 409. Since the diameter of the oil drain hole 409 is small, the flow rate of the hydraulic oil is reduced accordingly. The state of the gear 405 after rotation is as Figure 7 shown, so that the descending and flipping speeds of the dump truck body 105 become slow, playing a protective role for the dump truck body 105. When the dump truck body 105 completely descends, the piston 401 will reset under the elastic force of the strong spring 305. At this time, the spring plate 407 resets under the action of the return spring 408. At the same time, the spring plate 407 drives the toothed plate 406 to move, so that the toothed plate 406 drives the valve hole 403 to reset through the gear 405 and the fixed rod 404.

[0044] It should be noted that the stiffness of the strong spring 305 is relatively large. When the dump truck body 105 is normally flipped or lowered, during the movement of the moving plug 301, although it will also cause the hydraulic oil pressures on both sides of the piston 401 to be different, the pressure values on both sides differ little. Therefore, the strong spring 305 will not undergo a large deformation, and the limiting component 4 will not have a large displacement inside the moving plug 301. In addition, when the strong spring 305 is not under pressure, the strong spring 305 can keep the piston 401 at the middle position inside the moving plug 301. The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting frame protection device for a manure transfer vehicle, comprising a lifting assembly (1), wherein a driving end of the lifting assembly (1) is connected to a vehicle bucket (105), and is characterized in that: The lifting assembly (1) comprises a base plate (101), two angle adjustment assemblies (2) are installed inside the base plate (101), the angle adjustment assembly (2) comprises an outer cylinder (201) fixedly connected to the inside of the base plate (101), an inner rod (202) is inserted into the outer cylinder (201), a buffer assembly (3) is slidably connected inside the outer cylinder (201), the buffer assembly (3) comprises a movable plug (301), and a limit assembly (4) is slidably connected inside the movable plug (301); The limit assembly (4) comprises a piston (401) fixedly connected to a strong spring (305); a valve core (402) is rollingly connected inside the piston (401); a valve hole (403) is bored on the valve core (402); a fixing rod (404) rotatably connected to the upper end of the valve core (402); a gear (405) is fixedly connected to the upper end of the fixing rod (404); a tooth plate (406) meshing with the gear (405) is slidably connected to the piston (401); both ends of the tooth plate (406) penetrate the piston (401) and are fixedly connected to spring plates (407); a return spring (408) is fixedly connected between one of the spring plates (407) and the side wall of the piston (401); and oil discharge holes (409) connected to the valve hole (403) are bored on both the front and rear side walls of the valve core (402); A recoil assembly (5) is arranged at a position of the bucket (105) away from the discharge port, and the recoil assembly (5) is used to clean the stains on the inner wall of the bucket (105) and flush the stains to be discharged toward the discharge port.

2. The lifting frame protection device of the manure and sewage transport vehicle according to claim 1 is characterized in that: The buffer assembly (3) further comprises transmission holes (302) bored on the left and right side walls of the movable plug (301), and one end of the inner rod (202) close to the movable plug (301) is fixedly connected to a fixing plate (303).

3. The lifting frame protection device of the manure and sewage transport vehicle according to claim 2 is characterized in that: A short rod (304) is fixedly connected between the fixed plate (303) and the movable plug (301), a limit assembly (4) is slidably connected inside the movable plug (301), and a strong spring (305) is fixedly connected between the fixed plate (303) and the limit assembly (4).

4. The lifting frame protection device for the manure and sewage transport vehicle according to claim 3 is characterized in that: The lifting assembly (1) further comprises a hydraulic cylinder (102) rotatably connected to the inner wall of the lower side of the base plate (101), and a fixed shaft (103) is fixedly connected to the base plate (101).

5. The lifting frame protection device for the manure and sewage transport vehicle according to claim 4 is characterized in that: Two rotating sleeves (104) are rotatably connected to the fixed shaft (103).

6. The lifting frame protection device for the manure and sewage transport vehicle according to claim 5 is characterized in that: The upper ends of the two rotating sleeves (104) are fixedly connected to the truck bucket (105), and the upper end of the hydraulic cylinder (102) is hinged to the lower side wall of the truck bucket (105).

7. The lifting frame protection device for the manure and sewage transport vehicle according to claim 6 is characterized in that: The angle adjustment assembly (2) further comprises a moving block (203) fixedly connected to the end of the inner rod (202), and the moving block (203) is slidably connected inside the bottom plate (101), and a connecting rod (204) is hinged between the moving block (203) and the bucket (105).

8. The lifting frame protection device for the manure and sewage transport vehicle according to claim 7 is characterized in that: The recoil assembly (5) comprises a water inlet (501) arranged on the outer wall of the bucket (105); the other end of the water inlet (501) is connected to a base plate (502); the base plate (502) is fixed to the inner wall of the bucket (105) away from the discharge port; a plurality of groups of water spray heads (503) are arranged on the edge of the outer surface of the base plate (502); the water sprayed by the water spray heads (503) is used to clean the stains on the inner wall of the bucket (105); the nozzles of the water spray heads (503) are oriented toward the inner walls around the bucket (105).

Images