CN214877483U - Pneumatic sealing garbage truck - Google Patents
Pneumatic sealing garbage truck Download PDFInfo
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- CN214877483U CN214877483U CN202120837262.9U CN202120837262U CN214877483U CN 214877483 U CN214877483 U CN 214877483U CN 202120837262 U CN202120837262 U CN 202120837262U CN 214877483 U CN214877483 U CN 214877483U
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- inner ring
- air
- inflatable inner
- outer ring
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Abstract
The utility model discloses a pneumatic sealed garbage truck aims at solving the permanent back of using of joint strip, reduces because of fatigue elasticity, and the garbage truck that leads to is sealed not tight, sewage seepage problem. The pneumatically sealed garbage truck comprises a garbage carriage, a loader and a sealing device, wherein a discharge opening of the garbage carriage is opened/closed through opening and closing of the loader; the sealing device comprises a wear-resistant outer ring, an inflatable inner ring and an air pipe, the bottom of the wear-resistant outer ring is fixedly attached to the periphery of a discharge opening of the garbage carriage, the inflatable inner ring penetrates through the wear-resistant outer ring, the outer wall of the inflatable inner ring is attached to the inner wall of the wear-resistant outer ring by means of elasticity of the inflatable inner ring, the air pipe is communicated with a cavity of the inflatable inner ring, compressed air is input into the cavity through the air pipe, the inflatable inner ring and the wear-resistant outer ring can expand outwards, and therefore the wear-resistant outer ring is enabled to fill a gap between the loader and the garbage carriage, and reliable sealing is formed.
Description
Technical Field
The utility model relates to a seal structure of carriage and loader of garbage truck.
Background
The garbage truck is a special vehicle specially used for various garbage transported by municipal sanitation departments, and the requirements of people on the environment are higher and higher along with the expansion of cities and the improvement of the living standard of people. In order to prevent sewage in the garbage truck from leaking and causing secondary pollution to the environment, the sealing of a carriage and a loader of the garbage truck is an urgent problem to be solved.
The sealing method commonly adopted at present is as follows: the sealing rubber strip is arranged on the contact surface of the carriage and the loader, when the carriage and the loader are in contact, the gravity of the filler and the tension of the hook are utilized to act together to generate positive pressure, so that the sealing rubber strip is deformed to fill the gap of the contact surface, and the effect of sealing and preventing sewage from flowing out is achieved.
However, the cyclic expansion of the waste during loading can easily result in a small gap between the loader and the car, resulting in failure of the seal. Particularly, after the sealing rubber strip is used for a period of time, the rubber material of the sealing rubber strip is fatigued, the elasticity is reduced, the gap cannot be filled, and the sealing can be failed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the problem of the sealing rubber strip use for a long time, because of fatigue elasticity reduces, the garbage truck that leads to is sealed untight, sewage seepage is solved.
In order to achieve the above object, the utility model provides a following technical scheme:
a pneumatically sealed garbage truck comprises a garbage carriage, a loader and a sealing device, wherein a discharge opening of the garbage carriage is opened/closed through opening and closing of the loader; characterized in that the sealing device comprises:
the bottom of the wear-resistant outer ring is fixedly attached to the periphery of a discharge opening of the garbage compartment;
the inflatable inner ring penetrates through the wear-resistant outer ring, and the outer wall of the inflatable inner ring is attached to the inner wall of the wear-resistant outer ring by means of the elasticity of the inflatable inner ring;
and the air pipe is communicated with the cavity of the inflatable inner ring, and compressed air is input into the cavity through the air pipe to enable the inflatable inner ring and the wear-resistant outer ring to expand outwards.
Based on the above technical scheme, the utility model discloses still can further do as follows optimization:
optionally, the inflatable inner ring is made of rubber, has good elasticity and strong air tightness and is used for providing pressure. Of course, the material is not limited to these materials, so long as it has a certain elasticity and air tightness enough to provide pressure when inflated.
Optionally, the wear-resistant outer ring is made of rubber, and has elasticity smaller than that of the inflatable inner ring and hardness larger than that of the inflatable inner ring. It has strong toughness, wear resistance, extrusion resistance and replacement after being damaged. Of course, the wear-resistant outer ring is not limited to the materials, is mainly used for directly contacting with severe working conditions, can expand outwards under the action of the inflatable inner ring, and only needs to meet certain toughness requirements and be wear-resistant and extrusion-resistant.
Optionally, the bottom of the wear-resistant outer ring is glued around a discharge opening of the garbage compartment. And a sticky fixing and pasting form is adopted, so that a larger closed contact surface is formed, and the fixation is reliable. Of course, besides the gluing mode, other fixing and pasting modes can be adopted, as long as the bottom of the wear-resistant outer ring and the periphery of the discharge opening of the garbage carriage can be stably and reliably fixed and sealed.
Optionally, the air source of the compressed air is from an air path system of the garbage truck, so that the garbage truck is convenient to modify. Of course, a simple external compressed air device or the like may be considered.
Optionally, an electromagnetic directional valve is arranged on the air pipe, and a control operation component of the electromagnetic directional valve is arranged in the cab. Thus, the efficient operation of operators is facilitated. Of course, it is also conceivable to arrange the electromagnetic directional valve outside the driver's cab, and even to use a manual valve (switch), which is inconvenient for a single person to work efficiently.
Optionally, an air pump is arranged at an input end of the air pipe, and a dryer, an air tank, a sequence valve and the electromagnetic directional valve are sequentially arranged on the air pipe from the air pump to the inflation inner ring.
Optionally, the air pump is driven by a vehicle chassis gearbox power take off. Therefore, the output power of the vehicle is fully utilized by combining the working characteristics of the garbage truck.
Optionally, an air pressure detection unit is further disposed on the air pipe. Thus, the operator can visually check the inflation pressure in real time. Furthermore, the detection data of the air pressure detection unit can be transmitted to the cab, and the current inflation pressure is displayed on a corresponding instrument interface.
Optionally, the garbage compartment is fixed, and the loader is hinged to the garbage compartment through a shaft pin, and the opening and closing of the loader are driven by using the oil cylinders on the two sides as power.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model discloses a combination of wear-resisting outer lane, inflatable inner circle forms bilayer structure's joint strip, is similar to the inside and outside tire of tire. The bottom of the wear-resistant outer ring is fixedly attached to the periphery of a discharge opening of the garbage carriage; the inflatable inner ring penetrates through the wear-resistant outer ring, and the outer wall of the inflatable inner ring is attached to the inner wall of the wear-resistant outer ring by means of the elasticity of the inflatable inner ring; the trachea communicates with each other with the cavity of aerifing the inner circle, can make to aerify inner circle and wear-resisting outer lane and outwards expand through inputing compressed air to the cavity through the trachea to make the space between wear-resisting outer lane packing loader and the garbage carriage, form reliable sealed, solved conventional garbage truck joint strip and used the back for a long time, because of fatigue elasticity reduces, the garbage truck that leads to is sealed tight, sewage seepage problem.
The utility model provides an air supply comes from the gas circuit system of car from the area, convenient repacking.
The utility model discloses accessible solenoid valve is controlled in the driver's cabin, is favorable to the high-efficient operation of operating personnel.
Drawings
Fig. 1 is an overall structure view of a garbage truck.
Fig. 2 is a schematic view of the principle of double-layer pneumatic sealing according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a gas circuit according to an embodiment of the present invention.
Description of reference numerals:
1-garbage compartment, 2-air pipe, 3-compressed air, 4-wear-resistant outer ring, 5-inflatable inner ring, 6-cavity, 7-loader, 8-articulated shaft, 9-sealing device (sealing ring) and 10-hydraulic cylinder.
201-air pump, 202-dryer, 203-air cylinder, 204-air pressure gauge, 205-sequence valve, 206-electromagnetic directional valve.
Detailed Description
The following describes some embodiments with reference to the accompanying drawings to further describe the optional specific technical solutions and technical effects of the present invention.
Example one
As shown in fig. 1, the garbage truck comprises a garbage compartment 1, a loader 7 and a sealing device 9, wherein the opening and closing of the loader is used for opening/closing a discharge opening of the garbage compartment; specifically, the rear cover part of the loader is turned upwards around the axial direction of the top position of the rear end of the carriage to open the discharge opening of the garbage carriage, the rear cover part of the loader is turned downwards around the axial direction of the top position of the rear end of the carriage to close the discharge opening of the garbage carriage, and the sealing device is positioned at the discharge opening (the rear end surface of the garbage carriage or the end surface of the rear cover).
As shown in fig. 2, the sealing device specifically includes:
the bottom of the wear-resistant outer ring 4 is fixedly attached to the periphery of a discharge opening of the garbage compartment;
the inflatable inner ring 5 penetrates through the wear-resistant outer ring, and the outer wall of the inflatable inner ring 5 is attached to the inner wall of the wear-resistant outer ring 4 by means of the elasticity of the inflatable inner ring;
and the air pipe 2 is communicated with the cavity of the inflatable inner ring, and the inflatable inner ring and the wear-resistant outer ring can be expanded outwards by inputting compressed air into the cavity 6 through the air pipe.
The inflatable inner ring has certain elasticity and air tightness, and can provide pressure during inflation.
The wear-resistant outer ring is mainly used for directly contacting with severe working conditions, can expand outwards under the action of the inflatable inner ring, meets a certain toughness requirement, and is wear-resistant and extrusion-resistant; the bottom of the wear-resistant outer ring (corresponding to the rear end face of the garbage carriage or the end face of the rear cover) is stably and reliably fixed and sealed with the periphery of the discharge opening of the garbage carriage all the time.
In the course of the work, when loader 7 compresses tightly to garbage compartment 1, the air supply that sealing device inserts is through trachea to aerifing 6 input compressed air in cavity of inner circle 5, and cavity 6 is bloated, and the effort makes wear-resisting outer lane 4 fill the space between loader 7 and the garbage compartment 1, prevents that sewage from flowing out.
Example two
Based on the first embodiment, the inflatable inner ring is made of rubber, the wear-resistant outer ring is made of rubber, the elasticity of the wear-resistant outer ring is smaller than that of the inflatable inner ring, and the hardness of the wear-resistant outer ring is larger than that of the inflatable inner ring. The two are combined for use, so that the effect of effective leakage prevention is achieved.
The bottom of the wear-resistant outer ring is fixedly attached to the periphery of a discharge opening of the garbage compartment in an adhesive mode, a large closed contact surface is formed, and the fixing is reliable.
EXAMPLE III
Based on any one of the above embodiments, the following optimization is performed on the gas path system.
The air source of compressed air comes from the gas circuit system of garbage truck self-band, convenient repacking, and tracheal input is provided with the air pump promptly, and the air pump is driven by vehicle chassis gearbox power takeoff. Therefore, the output power of the vehicle is fully utilized by combining the working characteristics of the garbage truck.
Of course, a simple external compressed air device or the like may be considered.
The air pipe is provided with an electromagnetic directional valve, and a control part of the electromagnetic directional valve is arranged in the cab. Thus, the efficient operation of operators is facilitated. Of course, it is also conceivable to arrange the electromagnetic directional valve outside the driver's cab, and even to use a manual valve (switch), which is inconvenient for a single person to work efficiently.
Example four
Based on any one of the above embodiments, the gas path system is further optimized.
The second-class chassis of the automobile is used as a carrier, the garbage compartment 1 is fixed, the loader 7 is hinged with the garbage compartment 1 through a shaft pin, and the opening and closing of the loader 7 are controlled by taking the hydraulic cylinders 10 on two sides as power. The bottom of the wear-resistant outer ring 4 is glued around the discharge opening of the garbage carriage 1, the inflatable inner ring 5 penetrates through the wear-resistant outer ring 4, and the wear-resistant outer ring and the inflatable inner ring are attached to each other by means of the elasticity of the rubber material of the inflatable inner ring. The wear-resistant outer ring 4 is strong in toughness, resistant to wear and extrusion, replaceable after being damaged and used for directly contacting with severe working conditions; the inflatable inner ring 5 has good elasticity and strong air tightness and is used for providing pressure; the two are combined for use, so that the effect of effective leakage prevention is achieved.
As shown in fig. 2, the air tube 2 is communicated with the inner inflatable ring 5, and the compressed air 3 enters the inner inflatable ring 5 through the air tube 2 to form high internal air pressure of the cavity 6, so that the inner inflatable ring 5 and the wear-resistant outer ring 4 are expanded outwards.
As shown in fig. 3, when the automobile air pump is started, the air pump 201 is driven to operate by a power takeoff of an automobile chassis gearbox, high-pressure air is generated, moisture and impurities in the high-pressure air are removed by the dryer 202, the high-pressure air enters the air storage cylinder 203, the on-off of the air is controlled by the sequence valve 205 and the electromagnetic directional valve 206, and then the high-pressure air is conveyed into the inflation inner ring 5.
The air pipe can be also provided with a gas pressure gauge 204, and the preferred position is on a pipeline between the sequence valve and the air storage cylinder. Thus, the operator can visually check the inflation pressure in real time. Furthermore, the detection data of the barometer can be transmitted to the cab, and the current inflation pressure is displayed on a corresponding meter interface.
In the working process, when the loader 7 is pressed to the garbage carriage 1, a driver operates the electromagnetic valve in the cab, so that high-pressure air in the air storage cylinder enters the inflating inner ring 5 through the air pipe 2, the cavity 6 expands, and the acting force enables the wear-resistant outer ring 4 to fill a gap between the loader 7 and the garbage carriage 1, so that sewage is prevented from flowing out.
Additionally, it should be appreciated that the present invention is not limited to the type of garbage truck shown in fig. 1, but also may be applied to other sealed situations where a load or a discharge is required, such as a sewage suction truck and a sewage truck.
Claims (10)
1. A pneumatically sealed garbage truck comprises a garbage compartment (1), a loader (7) and a sealing device, wherein a discharge opening of the garbage compartment (1) is opened/closed through opening and closing of the loader (7); characterized in that said sealing means comprises:
the bottom of the wear-resistant outer ring (4) is fixedly attached to the periphery of a discharge opening of the garbage compartment (1);
the inflatable inner ring (5) penetrates through the wear-resistant outer ring (4), and the outer wall of the inflatable inner ring (5) is attached to the inner wall of the wear-resistant outer ring (4) by means of the elasticity of the inflatable inner ring;
and the air pipe (2) is communicated with the cavity (6) of the inflatable inner ring (5), and compressed air is input into the cavity (6) through the air pipe (2) to enable the inflatable inner ring (5) and the wear-resistant outer ring (4) to expand outwards.
2. A pneumatically sealed refuse cart according to claim 1, characterized in that said inflatable inner ring (5) is of rubber material.
3. The pneumatically sealed refuse cart according to claim 1 or 2, wherein the wear-resistant outer ring (4) is made of rubber, and has elasticity smaller than that of the inflatable inner ring (5) and hardness greater than that of the inflatable inner ring (5).
4. The pneumatically sealed garbage truck according to claim 1, wherein the bottom of the wear-resistant outer ring (4) is glued around the discharge opening of the garbage truck body (1).
5. The pneumatically sealed refuse cart of claim 1, wherein said source of compressed air is derived from an air path system onboard the refuse cart.
6. A pneumatically sealed refuse vehicle according to claim 5, characterized in that the air pipe (2) is provided with a solenoid directional valve, and the control member of the solenoid directional valve is provided in the cab.
7. The pneumatically sealed garbage truck according to claim 6, wherein an air pump is provided at the input end of the air pipe (2), and a dryer, an air tank, a sequence valve and the electromagnetic directional valve are provided on the air pipe (2) in this order from the air pump to the inner inflation ring.
8. The pneumatically sealed refuse cart of claim 7, wherein said air pump is driven by a vehicle chassis gearbox power take off.
9. The pneumatically sealed dust cart according to claim 6, wherein an air pressure detection unit is further provided on the air tube (2).
10. The pneumatic sealing garbage truck as claimed in claim 1, wherein the garbage truck body (1) is fixed, the loader (7) is hinged with the garbage truck body (1) through a shaft pin, and the loader (7) is driven to open and close by taking oil cylinders on two sides as power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120837262.9U CN214877483U (en) | 2021-04-22 | 2021-04-22 | Pneumatic sealing garbage truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120837262.9U CN214877483U (en) | 2021-04-22 | 2021-04-22 | Pneumatic sealing garbage truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214877483U true CN214877483U (en) | 2021-11-26 |
Family
ID=78948515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120837262.9U Active CN214877483U (en) | 2021-04-22 | 2021-04-22 | Pneumatic sealing garbage truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214877483U (en) |
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2021
- 2021-04-22 CN CN202120837262.9U patent/CN214877483U/en active Active
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