CN111359951A - High-pressure cleaning machine - Google Patents
High-pressure cleaning machine Download PDFInfo
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- CN111359951A CN111359951A CN201811605375.5A CN201811605375A CN111359951A CN 111359951 A CN111359951 A CN 111359951A CN 201811605375 A CN201811605375 A CN 201811605375A CN 111359951 A CN111359951 A CN 111359951A
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- reset spring
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- 238000004140 cleaning Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 230000001105 regulatory effect Effects 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 50
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 230000033001 locomotion Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 2
- 230000008859 change Effects 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0282—Safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a high-pressure cleaning machine, which comprises an engine and a high-pressure plunger pump, wherein the high-pressure plunger pump is arranged on the engine, a water outlet is formed in a pump body of the high-pressure plunger pump, a carburetor is arranged on the engine, a rocker arm for controlling an accelerator is arranged on the carburetor, and the high-pressure cleaning machine is also provided with a linkage speed regulation component. The high-pressure cleaning machine is provided with the linkage speed regulating component which is specially used for monitoring pressure and reducing the opening degree of the accelerator when the pressure is too large, a component responding to pressure change in the linkage speed regulating component is arranged in the linkage speed regulating component, the linkage speed regulating component is influenced by external interference to be extremely small and cannot be operated manually, the whole high-pressure cleaning machine cannot be operated manually at the linkage speed regulating component, and the safety in use is improved.
Description
Technical Field
The invention relates to a high-pressure cleaning machine, in particular to a linkage speed regulating structure for coordinating the water pressure of outlet water and the opening degree of an accelerator on the high-pressure cleaning machine.
Background
In the working process of the traditional high-pressure cleaning machine, no matter whether a spray gun is opened or not, an engine throttle is always in the maximum position, the engine always runs at a high speed, and a water outlet always keeps high pressure. Therefore, energy is wasted, and the high-pressure plunger pump always runs at a high speed, so that the pressure cannot be unloaded, and the service life of the high-pressure plunger pump is greatly shortened. In order to reduce the pressure in the no-load state in the prior art, a pressure reduction technology matched with an accelerator control structure is provided, and the purposes of reducing the pressure by reducing the accelerator when a spray gun is closed and increasing the pressure by increasing the accelerator when the spray gun is opened can be achieved. The key of the pressure reduction technology is an accelerator control structure which generates an operation structure with the change of the opening degree of an accelerator. Common throttle control structures include mechanical throttle control structures and electrically controlled throttle control structures. The electric control throttle control structure has the advantages of high control precision, obvious energy consumption saving and the like, and is applied to high-end equipment such as high-power high-pressure cleaning equipment, ultrasonic cleaning equipment, flexible cleaning equipment and the like. The mechanical throttle control structure utilizes mechanical power to adjust the opening degree of an engine throttle through various mechanical transmission devices, has simple mechanical structure, low price and reliable work, and is used for common environment cleaning operation equipment, such as a high-pressure cleaning machine for car washing, a high-pressure cleaning machine for removing pipeline blockage, a high-pressure cleaning machine for road sanitation maintenance and other low-end equipment.
The high-pressure cleaning machine with the mechanical throttle control structure is provided with a high-pressure plunger pump and an overflow valve, the overflow valve can change the position of a valve rod in the overflow valve in the pressure change process of the water outlet, and the mechanical throttle control structure changes the reasonable control process of feeding back the pressure corresponding to the water outlet according to the valve rod of the overflow valve. For example, a patent with publication number CN203515826U, published 4/2/2014, is disclosed in chinese patent for an accelerator linkage speed regulating mechanism on a washing machine, the accelerator linkage speed regulating mechanism is used for connecting a throttle valve and an overflow valve of an internal combustion engine, and the opening and closing of the throttle valve of the internal combustion engine is controlled by the overflow valve. The throttle opening adjusting device has the advantages that the throttle opening adjusting function can be achieved by utilizing the left-right movement of the plunger pump overflow valve on the cleaning machine, so that the throttle is closed when the cleaning machine is shut down, and the internal combustion engine runs at an idle speed.
The movement process of the valve rod of the overflow valve is based on the pressure change process, and the overflow valve is started when the pressure exceeds a certain value, so that the valve rod is driven to move, which means that the movement trend of the valve rod is caused by overlarge pressure. The overflow valve is used for unloading when the pressure is too high, however, in the prior art, the throttle is controlled by intercepting the movement trend of the valve rod, the overflow valve needs to take on a work task except the original function, and a part connected with the valve rod has the condition of blocking the movement of the valve rod, so that the pressure value for starting the overflow valve is increased, the overflow valve needs to be adjusted to match the starting threshold value of the mechanical throttle control structure when the high-pressure cleaning machine is used, otherwise, the overflow valve can not work normally. The adjustment operation can be carried out randomly after the product leaves a factory, and obviously, the use operation mode has potential safety hazards. In particular, when the activation state of the relief valve is adjusted to be at an excessively high pressure, the pressure regulation function thereof is meaningless.
Therefore, the high-pressure cleaning machine with the mechanical throttle control structure in the prior art has the problems of low working stability and low use safety.
Disclosure of Invention
The invention aims to solve the technical problem of how to improve the safety of using the high-pressure cleaning machine and improve the working stability of the high-pressure cleaning machine.
In order to solve the technical problems, the invention adopts the following technical scheme: the high-pressure cleaning machine comprises an engine and a high-pressure plunger pump, wherein the high-pressure plunger pump is installed on the engine, a water outlet is formed in a pump body of the high-pressure plunger pump, a carburetor is arranged on the engine, a rocker arm for controlling an accelerator is arranged on the carburetor, the high-pressure cleaning machine is further provided with a linkage speed regulation component, the linkage speed regulation component is provided with a linkage rod, a reset spring I, a rotating arm, a reset spring II and an accelerator linkage pull rope, an installation cavity I and a pressure feedback channel are formed in the pump body, the linkage rod is movably installed in the installation cavity I in a sliding mode, one end of the linkage rod is located in the installation cavity I and serves as a stress end, the other end of the linkage rod serves as an operation end and faces the outside of the pump body, the operation end of the linkage rod is in liquid-tight connection with the pump body, The other end of the return spring I is connected with the linkage rod, the pressure feedback channel is communicated with the water outlet, the pressure feedback channel is also communicated with the installation cavity I, the part of the pressure feedback channel, which is connected and communicated with the installation cavity I, is positioned at the end of the installation cavity I, which is used for accommodating the stress end of the linkage rod, the pump body is provided with a balance hole, the region of the mounting cavity I for accommodating the reset spring I is communicated with the water outlet through the balance hole, the rotating arm is movably arranged on the pump body in a rotating mode, one end of the rotating arm is positioned in the motion range of the working end of the linkage rod, the other end of the rotating arm is connected with one end of an accelerator linkage cable, the other end of the accelerator linkage cable is connected with the rocker arm, one end of the reset spring II is connected with the pump body, the other end of the reset spring II is connected with the rotating arm, and the reset spring II pushes the rotating arm to move towards the direction of pulling the accelerator linkage cable.
The linkage speed regulating component of the high-pressure cleaning machine completely depends on the structure of the high-pressure cleaning machine to detect the pressure, so that the defect caused by the movement trend of the valve rod of the intercepting overflow valve is overcome, the overflow valve only needs to maintain the original function, the working stability of the system based on the work of the overflow valve is ensured, and the working stability of the high-pressure cleaning machine is integrally improved. The linkage speed regulating component is internally provided with a linkage rod and a return spring I, the linkage rod is internally provided with a linkage rod, the linkage speed regulating component is extremely small in influence of external interference and cannot be manually operated, the whole high-pressure cleaning machine cannot be manually operated at the linkage speed regulating component, and the potential safety hazard in the prior art due to manual operation in use is avoided.
Due to the inherent hysteresis property of the mechanical structure in the power transmission process, the problem of power transmission efficiency is brought, and the problem of control process hysteresis is also brought. Certainly, the influence of the hysteresis problem on the technical scheme with low control precision requirement is limited, but the hysteresis problem is easily influenced and amplified by other mechanical problems, and in order to avoid the pressure reduction function failure of the linkage speed regulation part caused by the mechanical problems, a structure with the intercepting function is arranged in the linkage speed regulation part in the technical scheme, and once the pressure is too high and cannot be reduced or only suddenly changes and is too high, the high-pressure water flow can be prevented from flowing out of the water outlet by the intercepting function. The structure that has the function of damming is the cutout and ends subassembly, cutout ends the subassembly and includes retaining ring, reset spring III, balanced plunger, be equipped with the through-hole in the middle of the retaining ring, the retaining ring is fixed on the pump body and is located the delivery port, reset spring III, balanced plunger are located the delivery port, the external diameter of balanced plunger is less than the internal diameter of delivery port, reset spring III's one end is connected with the retaining ring, reset spring III's the other end is connected with balanced plunger, reset spring III promotes balanced plunger and makes the one end embedding of balanced plunger balanced downthehole, balanced plunger's the other end towards the retaining ring and balanced plunger can be connected with retaining ring liquid seal after overcoming reset spring III's elasticity. The water-stop component can move according to the water pressure at the water outlet, and is pushed into the balance hole by the reset spring III under the normal pressure, namely, one end of the balance plunger is embedded into the connection state in the balance hole. When the water pressure is overlarge and abnormal, the balance plunger moves along with the water flow, overcomes the elastic force of the reset spring III and then tightly props against the retaining ring to form a liquid-tight connection relation, at the moment, the water flow path is cut off, and no water is supplied to the outside at the water outlet; the linkage rod is maintained at high pressure and started to move, and the engine can be forced to reduce the output power after the whole linkage speed regulating component performs the action of continuously and forcibly regulating the accelerator, so that the water pressure is finally reduced. Therefore, the cutoff and stopping assembly has two functions, namely, the first function is to avoid the high-pressure cleaning machine from outputting abnormal water flow with overlarge pressure, the safety of the use and operation process is ensured, and the second function is to forcibly adjust the accelerator to reduce the water pressure. Plays an important role in guaranteeing safe operation.
The abnormal state caused by the overlarge water pressure can be solved in a pressure relief mode except for forcibly adjusting the throttle. Therefore, the linkage speed regulation part in the technical scheme is also provided with a pressure relief component, the pressure relief component comprises a return spring IV and steel balls, the pump body is provided with a pressure relief channel, the pressure relief channel comprises an installation cavity II and a pressure relief hole, the installation cavity II and the pressure relief hole are positioned on the same central line, the inner diameter of the mounting cavity II is larger than that of the pressure relief hole, the pressure relief channel is positioned in the extending direction of the central line of the mounting cavity I, the mounting cavity I, the mounting cavity II and the pressure feedback channel are communicated, the reset spring IV and the steel balls are positioned in the mounting cavity II, the steel ball can slide in the mounting cavity II and is in liquid-tight connection with the pump body, the pressure relief hole is communicated with the mounting cavity II and is communicated with the outside of the pump body, the reset spring IV pushes the steel balls to enable the steel balls to be connected with the stress end of the linkage rod, and the steel balls move along with the linkage rod. The pressure relief assembly moves along with the linkage rod, namely, the steel balls are separated from the mounting cavity II under the pushing of the return spring IV when the accelerator is controlled, and water can flow out of the pressure relief hole. The pressure relief mode solves the problem that excessive water pressure occurs, and the safety of using the high-pressure cleaning machine can be further improved.
The invention adopts the technical scheme that: the high-pressure cleaning machine is provided with the linkage speed regulating component which is specially used for monitoring pressure and reducing the opening degree of the accelerator when the pressure is too large, a component responding to pressure change in the linkage speed regulating component is arranged in the linkage speed regulating component, the linkage speed regulating component is influenced by external interference to be extremely small and cannot be operated manually, the whole high-pressure cleaning machine cannot be operated manually at the linkage speed regulating component, and the safety in use is improved.
Drawings
The present invention will be described in more detail with reference to the accompanying drawings and embodiments.
FIG. 1 is a schematic view I of a linkage speed regulating component of a high pressure cleaning machine according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view II of the installation of the linkage speed regulating component of the high pressure cleaning machine of the present invention.
Detailed Description
The high-pressure washer comprises an engine and a high-pressure plunger pump 1. The high-pressure plunger pump 1 is installed on an engine, and a water outlet 2 is formed in the pump body of the high-pressure plunger pump 1. The engine is provided with a carburetor 3, the carburetor 3 is provided with a rocker arm 4 for controlling an accelerator, the rocker arm 4 moves in a swinging mode, and the opening degree of the accelerator is changed along with the movement of the rocker arm 4, so that the effect of adjusting the power of the engine is achieved. As shown in fig. 1, 2 and 3, the high-pressure cleaning machine is also provided with a linkage speed regulating component. The linkage speed regulating component is used for regulating the power of the engine according to the water pressure of the water outlet 2. If the water pressure exceeds the set value, the power of the engine is reduced to achieve the purpose of reducing the water pressure; when the water pressure is lower than the set value, the power of the engine is increased so as to achieve the purpose of increasing the water pressure.
The linkage speed regulating component is provided with a linkage rod 5, a return spring I6, a rotating arm 7, a return spring II 8, an accelerator linkage inhaul cable 9, a cutoff stop component and a pressure relief component.
A cavity structure is arranged in a pump body of the high-pressure plunger pump 1 and comprises a mounting cavity I11 and a pressure feedback channel 12. Installation cavity I11 and pressure feedback channel 12 all close to delivery port 2, and the pump body has set up a balancing hole 10 between installation cavity I11 and delivery port 2, and this balancing hole 10's shape is the round platform form, and installation cavity I11 communicates with delivery port 2 through balancing hole 10. The pressure feedback channel 12 is of a straight structure, and the inner diameter of the pressure feedback channel 12 is far smaller than the average inner diameter of the installation cavity I11.
A linkage rod 5 and a return spring I6 are installed in the installation cavity I11. The linkage rod 5 is integrally of a rod-shaped structure, an opening is formed in one end of the installation cavity I11 on the pump body, the linkage rod 5 is movably installed in the installation cavity I11 in a sliding mode, and one end of the linkage rod can extend out of the pump body. The end of the linkage rod 5 which can extend out of the pump body is an operation end 13, the operation end 13 of the linkage rod 5 always faces the outside of the pump body, and the operation end 13 of the linkage rod 5 is in liquid-tight connection with the pump body. The other end of the linkage rod 5 is always located inside the installation cavity I11, the end, located inside the installation cavity I11, of the linkage rod 5 is a stress end 14, the linkage rod 5 is also connected with the pump body at the stress end 14, and the linkage rod 5 and the pump body can only slide relatively in the connection relation. That is, the linkage rod 5 is directly connected with the pump body only at the working end 13 and the force bearing end 14. Reset spring I6 overlaps on gangbar 5, and reset spring I6 is located installation cavity I11 along with gangbar 5 together to installation cavity I11 is used for holding the regional intercommunication with delivery port 2 through balancing hole 10 of reset spring I6. The linkage rod 5 is provided with a flange in the middle, one end of a reset spring I6 is propped against the pump body, the other end of the reset spring I6 is propped against the flange of the linkage rod 5, and the reset spring I6 is in a compressed state, so that one end of the reset spring I6 is connected with the pump body, and the other end of the reset spring I6 is connected with the linkage rod 5. The pressure feedback channel 12 is communicated with the water outlet 2 and the installation cavity I11. The part of the pressure feedback channel 12 communicated with the installation cavity I11 is positioned at the end of the installation cavity I11 for accommodating the force bearing end 14 of the linkage rod 5. Therefore, the water pressure of the water outlet 2 can be transmitted to the linkage rod 5 through the water distributed in the installation cavity I11 and the pressure feedback channel 12. The force of the water pressure in the water outlet 2 acting on the linkage rod 5 and the force of the return spring I6 acting on the linkage rod 5 are a pair of opposite acting forces. The linkage rod 5 can move towards the outside of the pump body by overcoming the elasticity of the return spring I6 when the pressure is overlarge; after the pressure becomes small, the return spring I6 can push the linkage rod 5 to move towards the interior of the pump body. Thus, the working end 13 of the linkage rod 5 makes telescopic motion on the pump body.
Be equipped with the pressure release passageway on the pump body, the pressure release passageway is located the extending direction of the central line of installation cavity I11. The pressure relief channel comprises an installation cavity II 15 and a pressure relief hole 16, the installation cavity II 15 and the pressure relief hole 16 are located on the same central line, and the inner diameter of the installation cavity II 15 is larger than that of the pressure relief hole 16. The pressure relief hole 16 is communicated with the mounting cavity II 15, and the pressure relief hole 16 is communicated with the outside of the pump body. The installation cavity I11, the installation cavity II 15 and the pressure feedback channel 12 are communicated with each other. The pressure relief assembly comprises a return spring IV 17 and a steel ball 18. The reset spring IV 17 and the steel balls 18 are located in the mounting cavity II 15, the steel balls 18 can slide in the mounting cavity II 15 and are in liquid-tight connection with the pump body, and therefore after the steel balls 18 are mounted in the mounting cavity II 15, the communicating relation between the mounting cavity I11 and the pressure relief hole 16 is isolated, and the reset spring IV 17 is in a compressed state. In an initial state, the linkage rod 5 is pushed to the inside of the pump body by the return spring I6, the steel balls 18 are pushed to the force bearing end 14 of the linkage rod 5 by the return spring IV 17, but finally the force bearing end 14 of the linkage rod 5 is tightly propped against the pump body, and the steel balls 18 are completely blocked in the installation cavity II 15 by the linkage rod 5. When the linkage rod 5 moves, the steel ball 18 moves together with the linkage rod 5; the maximum amount of linear displacement of the linkage rod 5 can be controlled by setting the elastic force of the reset spring IV 17, and the maximum displacement amount of the linkage rod 5 is equal to the radius of the steel ball 18 in the embodiment, so that the technical effect that the steel ball 18 is separated from the mounting cavity II 15 after the steel ball 18 and the linkage rod 5 move together can be ensured, the condition that the steel ball 18 is not in contact with the pump body, namely a gap is formed between the steel ball 18 and the pump body is obtained, and the mounting cavity I11 and the pressure feedback channel 12 can be communicated with the pressure relief hole 16.
The rotating arm 7, the reset spring II 8 and the accelerator linkage inhaul cable 9 are positioned outside the pump body. The middle part of the rotating arm 7 is movably arranged on the pump body through a rotating shaft, and after the rotating arm 7 is arranged, the rotating arm can rotate around the rotating shaft in the positive and negative directions. One end of the rotating arm 7 is next to the working end 13 of the linkage rod 5, and is always located in the movement range of the working end 13 of the linkage rod 5, as long as the linkage rod 5 moves outwards from the inside of the pump body and extends out, the working end 13 of the linkage rod 5 can be contacted with one end of the rotating arm 7 and establish a connection relation, and the linkage rod 5 pushes the rotating arm 7, so that the rotating arm 7 generates rotation movement. One end of an accelerator linkage cable 9 is arranged on the pump body and connected with the other end of the rotating arm 7, and the other end of the accelerator linkage cable is arranged on the rocker arm 4. The II reset spring 8 is sleeved on the accelerator linkage inhaul cable 9, one end of the II reset spring 8 props against the pump body, and the other end of the II reset spring props against the rotating arm 7, so that one end of the II reset spring 8 is connected with the pump body, and the other end of the II reset spring 8 is connected with the rotating arm 7. When the linkage rod 5 does not extend outwards any more, the return spring II 8 can push the rotating arm 7 to rotate reversely, and meanwhile, the rotating arm 7 pulls the accelerator linkage cable 9. The rotating arm 7 drives the accelerator linkage cable 9 in the swinging process to further drive the rocker arm 4 to swing, so that the accelerator opening in the carburetor 3 is made to change adaptively, namely the accelerator opening is changed in size.
The cut-off stop component is positioned at the water outlet 2 of the pump body. The cut-off and cut-off assembly comprises a retainer ring 19, a return spring III 20 and a balance plunger 21. A through hole is arranged in the middle of the check ring 19, the check ring 19 is fixed on the pump body and is positioned in the water outlet 2, and the check ring 19 is in liquid-tight connection with the pump body; after installation, the through hole in the middle of the collar 19 is used as the only path for the water outlet 2 in the collar 19. The return spring III 20 and the balance plunger 21 are positioned in the water outlet 2, the outer diameter of the balance plunger 21 is smaller than the inner diameter of the water outlet 2, and a gap between the periphery of the balance plunger 21 and the pump body is used as the only path of the water outlet 2 in the balance plunger 21. One end of a return spring III 20 is abutted against the retainer ring 19, and the other end of the return spring III is abutted against the balance plunger 21, so that one end of the return spring III 20 is connected with the retainer ring 19, and the other end of the return spring III 20 is connected with the balance plunger 21. One end of the balance plunger 21 is provided with a truncated cone-shaped structure, and the truncated cone-shaped structure corresponds to the structure of the balance hole 10. In an initial state, the reset spring III 20 pushes the balance plunger 21 and enables the end, in the shape of a circular truncated cone, of the balance plunger 21 to be embedded into the balance hole 10, the balance plunger 21 is separated from the check ring 19, and the water outlet 2 is smoothly communicated with the outside.
When in use, the pump body is connected with the spray gun at the water outlet 2. After the spray gun is closed, the water pressure in the water outlet 2 is overlarge, the linkage rod 5 is driven by the water pressure to extend out of the pump body by overcoming the elastic force of the return spring I6, and the steel ball 18 and the stress end 14 of the linkage rod 5 move together. If the water pressure is higher and exceeds the safety range, the linkage rod 5 can further extend outwards, the steel ball 18 and the stress end 14 of the linkage rod 5 move together until the steel ball 18 is separated from the installation cavity II 15, the installation cavity I11 is communicated with the pressure relief hole 16, and water flows outwards from the pressure relief hole 16 to be unloaded. The water pressure also drives the balance plug 21 out of the balance hole 10, but at this time the balance plug 21 is not connected to the retainer ring 19. When the linkage rod 5 overcomes the elastic force of the return spring I6 and extends out of the pump body, water near the return spring I6 enters the water outlet 2 through the balance hole 10. After the water pressure is reduced, the linkage rod 5 moves a certain distance towards the inside of the body, finally, the operation end 13 of the linkage rod 5 extends out of the pump body and pushes the rotating arm 7, the accelerator linkage cable 9 drives the rocker arm 4 to move after the rotating arm 7 rotates, the accelerator opening in the carburetor 3 is reduced, the engine power is reduced until the engine runs at an idle speed, and therefore the water pressure at the water outlet 2 is not increased any more after being reduced; at the same time, the balance plunger 21 is restored to the original state to be fitted into the balance hole 10. After the spray gun is opened, the water pressure in the water outlet 2 is reduced, the linkage rod 5 is pushed to the interior of the pump body by the reset spring I6, the rotating arm 7 moves reversely and pulls the accelerator linkage pull cable 9, the rocker arm 4 rotates reversely immediately, the accelerator opening in the carburetor 3 is increased, the power of the engine is improved, and the water pressure at the water outlet 2 is increased and maintained.
If the water pressure is suddenly increased when the spray gun is opened, the water pressure drives the balance plunger 21 to be in liquid-tight connection with the check ring 19 after overcoming the elastic force of the return spring III 20, no water is ejected from the spray gun, an operator closes the spray gun, the balance plunger 21 is separated from the balance hole 10, and the communication degree of the installation cavity I11 and the water outlet 2 is maximized; meanwhile, the linkage rod 5 overcomes the elastic force of the return spring I6 and rapidly extends out of the pump body, the power of the engine is reduced, and water gathered near the return spring I6 rapidly enters the end of the water outlet 2 through the balance hole 10. If the water pressure is higher than the safe range, the linkage rod 5 can further extend outwards, the steel ball 18 and the stress end 14 of the linkage rod 5 move together until the steel ball 18 is separated from the installation cavity II 15, the installation cavity I11 is communicated with the pressure relief hole 16, and water flows outwards from the pressure relief hole 16 to be unloaded. When the water pressure is reduced and then returns to normal, the linkage rod 5 moves a certain distance towards the inside of the body so as to enable the engine to be in an idle running state, the balance plunger 21 enters an initial state and is embedded into the balance hole 10, the steel ball 18 enters the initial state and enters the installation cavity II 15, the water outlet 2 is smooth, the linkage rod 5 returns to the initial state only after the spray gun is opened, at the moment, normal use can be continued, and the water pressure is maintained after being improved; if the spray gun is not closed by an operator, the linkage rod 5 is immediately restored to the initial state when the water pressure is reduced and the water is discharged from the water outlet 2 again, but the intermittent water discharge is generated.
Claims (3)
1. The utility model provides a high pressure cleaner, high pressure cleaner includes engine, high-pressure plunger pump (1), install on the engine high-pressure plunger pump (1), be equipped with delivery port (2) on the pump body of high-pressure plunger pump (1), be equipped with carburetor (3) on the engine, be equipped with rocking arm (4) of control throttle on carburetor (3), its characterized in that: the high-pressure cleaning machine is further provided with a linkage speed regulating component, the linkage speed regulating component is provided with a linkage rod (5), a reset spring I (6), a rotating arm (7), a reset spring II (8) and an accelerator linkage cable (9), the pump body is provided with a mounting cavity I (11) and a pressure feedback channel (12), the linkage rod (5) is movably mounted in the mounting cavity I (11) in a sliding mode, one end of the linkage rod (5) is positioned in the mounting cavity I (11) and serves as a stress end (14), the other end of the linkage rod (5) serves as an operation end (13) and faces the outside of the pump body, the operation end (13) of the linkage rod (5) is connected with the pump body in a liquid sealing mode, the reset spring I (6) is positioned in the mounting cavity I (11), one end of the reset spring I (6) is connected with the pump body, and the other end of the reset spring I (6) is connected with the linkage rod, pressure feedback passageway (12) and delivery port (2) intercommunication, pressure feedback passageway (12) still communicate with installation cavity I (11), the position that pressure feedback passageway (12) and installation cavity I (11) meet the intercommunication is located this end that installation cavity I (11) are used for holding stress end (14) of gangbar (5), be equipped with balancing hole (10) on the pump body, the region that installation cavity I (11) are used for holding reset spring I (6) is through balancing hole (10) and delivery port (2) intercommunication, swinging boom (7) are with rotation mode movable mounting on the pump body, the one end of swinging boom (7) is located the motion range of operation end (13) of gangbar (5), the other end and the one end of throttle linkage cable (9) of swinging boom (7) are connected, the other end and rocking arm (4) of throttle linkage cable (9) are connected, one end of the reset spring II (8) is connected with the pump body, the other end of the reset spring II (8) is connected with the rotating arm (7), and the reset spring II (8) pushes the rotating arm (7) to move towards the direction of pulling the accelerator linkage cable (9).
2. The high pressure cleaner of claim 1, wherein: the linkage speed regulating component is also provided with a cutoff and stopping component, the cutoff and stopping component comprises a check ring (19), a return spring III (20) and a balance plunger (21), a through hole is arranged in the middle of the retainer ring (19), the retainer ring (19) is fixed on the pump body and is positioned in the water outlet (2), the return spring III (20) and the balance plunger (21) are positioned in the water outlet (2), the outer diameter of the balance plunger (21) is smaller than the inner diameter of the water outlet (2), one end of the reset spring III (20) is connected with the retainer ring (19), the other end of the reset spring III (20) is connected with the balance plunger (21), the return spring III (20) pushes the balance plunger (21) and enables one end of the balance plunger (21) to be embedded into the balance hole (10), the other end of the balance plunger (21) faces the retainer ring (19), and the balance plunger (21) can be in liquid-tight connection with the retainer ring (19) after overcoming the elastic force of the return spring III (20).
3. The high pressure washer according to claim 1 or 2, wherein: the linkage speed regulation part is also provided with a pressure relief component, the pressure relief component comprises a reset spring IV (17) and steel balls (18), a pressure relief channel is arranged on the pump body and comprises an installation cavity II (15) and a pressure relief hole (16), the installation cavity II (15) and the pressure relief hole (16) are positioned on the same central line, the inner diameter of the installation cavity II (15) is larger than that of the pressure relief hole (16), the pressure relief channel is positioned in the extending direction of the central line of the installation cavity I (11), the installation cavity II (15) and the pressure feedback channel (12) are communicated with each other, the reset spring IV (17) and the steel balls (18) are positioned in the installation cavity II (15), the steel balls (18) can perform sliding motion in the installation cavity II (15), the steel balls (18) are in liquid sealing connection with the pump body, the pressure relief hole (16) is communicated with the installation cavity II (15) and the pressure relief hole (16) is communicated with the outside of the, the return spring IV (17) pushes the steel ball (18) to enable the steel ball (18) to be connected with the stress end (14) of the linkage rod (5), and the steel ball (18) moves along with the linkage rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811605375.5A CN111359951A (en) | 2018-12-26 | 2018-12-26 | High-pressure cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811605375.5A CN111359951A (en) | 2018-12-26 | 2018-12-26 | High-pressure cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111359951A true CN111359951A (en) | 2020-07-03 |
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ID=71200185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811605375.5A Pending CN111359951A (en) | 2018-12-26 | 2018-12-26 | High-pressure cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111359951A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174723A (en) * | 1989-01-26 | 1992-12-29 | Alfred Karcher Gmbh & Co. | High-pressure cleaning appliance |
| CN2552777Y (en) * | 2002-06-12 | 2003-05-28 | 胡松海 | Direct-through unloading high pressure cleaning machine |
| CN101109331A (en) * | 2007-07-30 | 2008-01-23 | 浙江大学 | Accelerograph control system of high-pressure cleaning machine |
| CN205370770U (en) * | 2016-01-30 | 2016-07-06 | 上海越冠机电设备有限公司 | Petrol is throttle adjustment mechanism for cleaning machine |
| CN106552788A (en) * | 2016-11-17 | 2017-04-05 | 宁波可利尔电器科技有限公司 | A kind of jetting machine |
| CN209424165U (en) * | 2018-12-26 | 2019-09-24 | 永康三久工具有限公司 | A kind of jetting machine |
-
2018
- 2018-12-26 CN CN201811605375.5A patent/CN111359951A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174723A (en) * | 1989-01-26 | 1992-12-29 | Alfred Karcher Gmbh & Co. | High-pressure cleaning appliance |
| CN2552777Y (en) * | 2002-06-12 | 2003-05-28 | 胡松海 | Direct-through unloading high pressure cleaning machine |
| CN101109331A (en) * | 2007-07-30 | 2008-01-23 | 浙江大学 | Accelerograph control system of high-pressure cleaning machine |
| CN205370770U (en) * | 2016-01-30 | 2016-07-06 | 上海越冠机电设备有限公司 | Petrol is throttle adjustment mechanism for cleaning machine |
| CN106552788A (en) * | 2016-11-17 | 2017-04-05 | 宁波可利尔电器科技有限公司 | A kind of jetting machine |
| CN209424165U (en) * | 2018-12-26 | 2019-09-24 | 永康三久工具有限公司 | A kind of jetting machine |
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