Pump head equipment of high-pressure cleaning machine
By designing an automatic lubricating oil replacement system with a storage box and plug plate in the pump head of the high-pressure cleaner, the problems of contamination and sealing during lubricating oil replacement are solved, realizing automated lubricating oil replacement and improving the stability and service life of the equipment.
Patent Information
- Application Number
- CN202511726679.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2025-12-26
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing high-pressure cleaner pump head equipment is prone to external dust and contaminants entering during lubrication oil changes, which can damage the seal, reduce lubrication performance, and cause emulsification in humid environments, leading to equipment wear and damage.
An automatic lubricating oil replacement system including a storage box and a stopper plate was designed. Through the movement of multiple cavities in the storage box and the stopper plate, the lubricating oil can be automatically collected, cleaned and replaced, avoiding contamination and sealing problems caused by manual operation.
It enables automated lubricant replacement, reduces manual operation steps, prevents foreign objects from entering, improves replacement efficiency and equipment stability, and avoids wear and equipment failure caused by untimely lubricant replacement.
Smart Images
Figure CN121206357A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of pump head technology, and particularly relates to a high-pressure cleaner pump head device. Background Technology
[0002] As the power core of the high-pressure washer, the regular lubrication and maintenance of its internal crankcase is crucial for ensuring the long-term stable operation of the equipment. Currently, this maintenance relies entirely on the traditional method of manually changing the lubricating oil at regular intervals. This method has many inherent drawbacks in practical applications, seriously affecting the reliability and service life of the equipment.
[0003] Most equipment users are not professional maintenance personnel, and during replacement, improper operation can easily lead to external dust and impurities entering the lubrication system, causing oil contamination. Furthermore, improper tightening torque or inadequate installation of seals when removing and installing drain and filler screws can compromise the system's original seal, causing lubricant leakage or external contaminant intrusion. Since equipment may be distributed across different work sites, the lubricating performance of expired lubricating oil will significantly decrease. Even more seriously, in humid environments, moisture can seep into the crankcase through respiration, causing oil emulsification. Emulsified lubricating oil drastically loses its lubricating ability, leading to rapid wear on core components such as pump head bearings and crankshaft, ultimately resulting in reduced equipment pressure, abnormal noise, or even seizure and failure. Summary of the Invention
[0004] To address the problems existing in the prior art, this invention provides a high-pressure cleaner pump head device, which solves the problem that existing equipment cannot accurately and quickly change the lubricating oil, leading to damage during use.
[0005] This invention is implemented as follows: a high-pressure cleaner pump head device includes a pump housing, a pump head mounted on the pump housing, a crankshaft rotatably mounted inside the pump housing, and a support frame fixedly mounted at the bottom of the pump housing, and further includes: A storage component for replenishing and collecting lubricating oil is movably disposed within a support frame. The storage component includes a storage box movably disposed within the support frame, and the storage box has multiple cavities for collecting and storing lubricating oil. Multiple thin films are disposed within each cavity, and each pair of cavities is separated by a thin film. A stopper plate is slidably disposed within the storage box, and when the stopper plate slides along the inner wall of the storage box, the lubricating oil in the pump housing enters the cavity, and the lubricating oil in the storage box enters the pump housing.
[0006] As a preferred embodiment of the present invention, the storage box contains at least three cavities, one of which is hollow, one of which stores cleaning agent, and another of which is filled with new lubricating oil. The hollow cavity is interconnected with the bottom of the pump housing, and the other two cavities are interconnected with the top of the pump housing through an external pipe. The three cavities are arranged as a hollow cavity, a cleaning agent cavity, and a lubricating oil cavity.
[0007] As a preferred embodiment of the present invention, the storage assembly is provided with a thrust assembly for moving the stopper plate and for pushing the liquid in the cavity out. The thrust assembly includes a first solenoid valve disposed at the end of the support frame. The storage box is provided with a first airbag, and the end of the first airbag is fixedly disposed on the stopper plate. At the same time, the first airbag passes through multiple films. When the storage box is located in the support frame, the other end of the first airbag passing through the films communicates with the first solenoid valve, and a gas control element is disposed at the communication point.
[0008] As a preferred embodiment of the present invention, a flexible tube is provided on the outer side of the first airbag, and a first spring is provided between the flexible tube and the first airbag.
[0009] As a preferred embodiment of the present invention, the air control component includes a vent pipe that is slidably disposed in the storage box. The vent pipe is hollow inside and has two symmetrically arranged through holes. A second spring is also sleeved on the vent pipe. A pin that is in movable contact with the second spring is provided on one side of the first solenoid valve.
[0010] As a preferred embodiment of the present invention, when the storage box is located inside the support frame, the hollow cavity inside the storage box is in communication with the pump casing, and a second solenoid valve is provided at the communication point. A connecting component is provided at the communication point between the storage box and the second solenoid valve, and at the communication point between the storage box and the pump casing through the external pipe.
[0011] As a preferred embodiment of the present invention, the connecting assembly includes a corrugated sleeve and a third spring disposed inside the corrugated sleeve, wherein the corrugated sleeve disposed at the second solenoid valve is fixedly disposed at the top of the storage box, and the corrugated sleeve disposed at the external tube is fixedly disposed on one side of the storage box.
[0012] In a preferred embodiment of the present invention, a sealing membrane is disposed within a corrugated sleeve on the support frame, and a piercing plate for puncturing the sealing membrane is slidably disposed within the support frame. Another corrugated sleeve and a third spring are disposed on the outer side of the piercing plate. The piercing plate is disposed on the inner side of the third spring. The two piercing plates are connected by a connecting rod, and a second airbag is disposed on the connecting rod. The first solenoid valve communicates with the second airbag.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention features a movable storage box at the bottom of the pump housing. Multiple cavities within the storage box effectively collect and replace lubricating oil. When the storage box is positioned at the bottom of the pump housing, the collection of waste liquid within the cavities can be controlled manually or via a controller, preventing splashing and environmental pollution during oil changes. Furthermore, the movement of the stopper plate within the cavities creates negative pressure, effectively pumping pressure within the pump housing, thus accelerating oil change efficiency and saving time. As the stopper plate moves, it also forces cleaning fluid into the pump housing, ensuring cleanliness inside the pump housing during oil changes while simultaneously collecting waste oil. The cavity can still collect the flushing fluid, preventing environmental pollution. As the stopper plate continues to move, it pushes the new lubricating oil from the cavity into the pump housing, achieving automatic collection of waste oil and automatic replacement of new oil. This reduces the steps of disassembling the pump housing, prevents foreign objects from entering the oil during replacement due to environmental factors, and avoids repeated disassembly that could lead to oil leakage at the pump housing seal. The automatic oil replacement also saves manual operation steps. Furthermore, by setting a timer controller, the oil can be automatically replaced at set times, preventing crankshaft wear due to forgetting to replace the oil after prolonged use, and avoiding equipment vibration caused by untimely oil replacement. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure from the lower side view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the invention from the upper view. Figure 3 This is a schematic diagram of the structure from a partial left-side view of the present invention; Figure 4 This is a schematic diagram of the internal structure of the invention from a partial right-side view. Figure 5 This is a schematic diagram of the cross-sectional structure from a partial frontal view of the present invention; Figure 6 This is a schematic diagram of the partial front-view separation structure of the present invention; Figure 7 This is a schematic diagram of the workflow of the present invention.
[0015] In the picture: 1. Pump housing; 2. Pump head; 3. Crankshaft; 4. Support frame; 5. Storage assembly; 51. Storage box; 52. Cavity; 53. Plug plate; 6. Thrust assembly; 61. Hose; 62. First airbag; 63. First spring; 64. First solenoid valve; 65. Pin; 66. Vent pipe; 67. Second spring; 7. Connecting assembly; 71. Corrugated sleeve; 72. Third spring; 73. Sealing membrane; 8. Spike plate; 9. Second airbag; 10. Second solenoid valve. Detailed Implementation
[0016] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0017] The structure of the present invention will now be described in detail with reference to the accompanying drawings.
[0018] like Figures 1 to 7 As shown, an embodiment of the present invention provides a high-pressure washer pump head device, including a pump housing 1, a pump head 2 disposed on the pump housing 1, a crankshaft 3 rotatably disposed inside the pump housing 1, and a support frame 4 fixedly disposed at the bottom of the pump housing 1, and further including: A storage component 5 is movably installed within the support frame 4 for replenishing and collecting lubricating oil. The storage component 5 includes a storage box 51 movably installed within the support frame 4, and the storage box 51 is provided with multiple cavities 52 for collecting and storing lubricating oil. Multiple membranes are provided within the cavities 52, and each pair of cavities 52 is separated by a membrane. A stopper plate 53 is slidably installed within the storage box 51, and when the stopper plate 53 slides along the inner wall of the storage box 51, the lubricating oil in the pump housing 1 enters the cavity 52, and the lubricating oil in the storage box 51 enters the pump housing 1. refer to Figure 1 and Figure 2 The crankshaft 3 is located inside the pump housing 1, and the end of the crankshaft 3 extends to the outside of the pump housing 1. A connecting flange is provided on the crankshaft 3, which can be driven to rotate by an external motor. Multiple plungers are provided on the crankshaft 3, and the plungers slide inside the pump head 2. By moving the plungers, a stable negative pressure can be formed, thereby controlling the flow of water. Since the crankshaft 3 works as a traditional plunger-type high-pressure pump, its working principle will not be described in detail. When the crankshaft 3 is working, in order to reduce the heat generation of the equipment, a large amount of lubricating oil is injected into the pump housing 1 to assist the crankshaft 3 in working. After the crankshaft 3 has been working for a certain period of time, due to the high pressure of the water and the continuous operation of the crankshaft 3, the lubricating oil will emulsify inside. refer to Figure 1 and Figure 4 The support frame 4 is fixedly mounted on the pump housing 1, while the storage box 51 is removable and replaceable. Before use, the storage box 51 can be placed inside the support frame 4, as shown in the specific placement method. Figure 7In this state, the storage box 51 is inserted into the support frame 4 from left to right. During the insertion process, the storage box 51 gradually connects with the communication points on the support frame 4. When the storage box 51 is completely inserted into the support frame 4, the cavity 52 inside the storage box 51 will communicate with the bottom of the pump housing 1. At the same time, the other cavity 52 will also communicate with the pump housing 1. When changing the lubricating oil in the pump housing 1, the plug plate 53 can be pushed to the right. When the plug plate 53 moves to the right, because the plug plate 53 forms a piston-like movement in the storage box 51, a suction state will be formed in the cavity 52. At this time, the cavity 52 will draw out the waste oil in the pump housing 1. As the plug plate 53 moves, the plug plate 53 will... The cleaning fluid in the other cavity 52 is squeezed and then injected into the pump housing 1 to flush the inside of the pump housing 1. The waste fluid after flushing will still be collected, that is, the waste fluid after flushing will still enter the cavity 52 used for waste oil collection. After the pump housing 1 is flushed, the plug plate 53 will push the other cavity 52 so that the new lubricating oil in the cavity 52 can be injected into the pump housing 1, thereby filling the pump housing 1 with oil. After the pump housing 1 is filled with oil, the storage box 51 can be pulled out and a new storage box 51 can be placed in it for subsequent oil replacement. The oil replacement can be carried out periodically by setting a PLC controller or manually. This invention features a movable storage box 51 at the bottom of the pump housing 1. Multiple cavities 52 within the storage box 51 effectively collect and replace lubricating oil. When the storage box 51 is placed at the bottom of the pump housing 1, the collection of waste liquid within the cavities 52 can be effectively controlled manually or by a controller, preventing splashing and environmental pollution during oil replacement. Furthermore, the movement of the stopper plate 53 within the cavities 52 creates a negative pressure, effectively forming a suction effect within the pump housing 1, thus accelerating oil replacement efficiency and saving time. As the stopper plate 53 moves, it can also squeeze cleaning fluid into the pump housing 1, ensuring the cleanliness of the pump housing 1 during replacement. Meanwhile, the cavity 52, which collects waste oil, can still collect flushing fluid, preventing the cleaning fluid from polluting the environment. As the stopper plate 53 continues to move, it can push the new lubricating oil in the cavity 52 into the pump housing 1, achieving the effect of automatic collection of waste oil and automatic replacement of new oil. This reduces the steps of disassembling the pump housing 1, prevents foreign objects from entering the oil during oil replacement due to environmental factors, and avoids repeated disassembly that could lead to oil leakage at the seal of the pump housing 1. At the same time, the automatic replacement of oil can save manual operation steps, and by setting a timer controller, it can also realize the automatic replacement of oil at a time, avoiding the wear of the crankshaft 3 due to human forgetting to replace it after long-term use, and also preventing the equipment from shaking due to the failure to replace the oil in time.
[0019] As a preferred embodiment of the present invention, the storage box 51 contains at least three cavities 52, one of which is hollow, one of which stores cleaning agent, and one of which is filled with new lubricating oil. The hollow cavity 52 is connected to the bottom of the pump housing 1, and the other two cavities 52 are connected to the top of the pump housing 1 through an external tube. The three cavities 52 are arranged as a hollow cavity 52, a cleaning agent cavity 52, and a lubricating oil cavity 52. refer to Figure 7 ,pass Figure 7 It can be clearly seen that the cavities 52 are arranged from left to right. The leftmost cavity 52 is hollow, the rightmost cavity 52 is for storing new lubricating oil, and the middle cavity 52 is for storing cleaning agent. When the stopper plate 53 moves, it moves from left to right. When the storage box 51 is placed in the support frame 4, the stopper plate 53 moves to the left, creating negative pressure to draw out the waste liquid in the pump housing 1. As the stopper plate 53 moves, it punctures the diaphragm and forces the cleaning agent in. Inside the pump housing 1, after the cleaning agent cleans the pump housing 1, the liquid will flow back into the waste liquid cavity 52. As the stopper plate 53 continues to move, the stopper plate 53 will press new oil into the pump housing 1, thereby completing the replacement of old and new oil. At the same time, the oil replacement is automatically achieved, reducing the steps of disassembling the pump housing 1, speeding up the oil replacement efficiency, and ensuring the use of oil. The new oil is formed in a metered manner in the cavity 52, which can avoid the situation of too much or too little oil when replacing oil, thus improving the accuracy of oil replacement.
[0020] As a preferred embodiment of the present invention, the storage component 5 is provided with a thrust component 6 for pushing the stopper plate 53 to move and pushing the liquid out of the cavity 52. The thrust component 6 includes a first solenoid valve 64 provided at the end of the support frame 4. The storage box 51 is provided with a first airbag 62, and the end of the first airbag 62 is fixedly provided on the stopper plate 53. At the same time, the first airbag 62 passes through multiple films. When the storage box 51 is located in the support frame 4, the other end of the first airbag 62 passing through the films communicates with the first solenoid valve 64, and a gas control element is provided at the communication point. refer to Figure 7The first solenoid valve 64 is mounted on the support frame 4. When the storage box 51 is completely placed inside the support frame 4, the end of the first air bladder 62 is connected to the first solenoid valve 64 through the air control component. At this time, the air bladder 62 can be deflated by opening and closing the first solenoid valve 64. For example, when the first solenoid valve 64 is opened, the air control component is opened at the same time, and the gas inside the first air bladder 62 is discharged. When the gas inside the first air bladder 62 is discharged, the first air bladder 62 gradually deflates. When the first air bladder 62 deflates, it will pull the stopper plate 53 to move to the right, thereby achieving the effect of pumping pressure. That is to say, the waste liquid in the pump housing 1 can be quickly pumped out. At the same time, the movement of the stopper plate 53 can push the cleaning fluid and new lubricating fluid into the pump housing 1, realizing the automatic replacement and collection of oil, and further improving the ease of use of the equipment.
[0021] As a preferred embodiment of the present invention, a flexible tube 61 is sleeved on the outer side of the first airbag 62, and a first spring 63 is provided between the flexible tube 61 and the first airbag 62. refer to Figure 7 The first spring 63 is disposed between the hose 61 and the first airbag 62. The first spring 63 is initially in the open state. As the gas in the first airbag 62 is gradually discharged, the first spring 63 will gradually contract. When the first spring 63 gradually contracts, it will gradually assist the first airbag 62 in pulling the stopper plate 53 to move, thereby creating a negative pressure in the cavity 52. At the same time, the cleaning agent and new lubricating oil can be discharged, thus achieving an automatic replacement effect, making the equipment more convenient to use and more efficient in replacement.
[0022] As a preferred embodiment of the present invention, the air control component includes a vent pipe 66 slidably disposed in the storage box 51. The vent pipe 66 is hollow inside and has two symmetrical through holes. A second spring 67 is also sleeved on the vent pipe 66. A pin 65 that is in active contact with the second spring 67 is disposed on one side of the first solenoid valve 64. refer to Figure 7 The second spring 67 is initially in the open state. When the storage box 51 is completely placed inside the support frame 4, the pin 65 behind the first solenoid valve 64 will squeeze the vent tube 66, causing the second spring 67 to be gradually compressed. At the same time, the vent tube 66 will be pressed into the first air bladder 62. At this time, the through hole on the vent tube 66 will form convection with the inside of the vent tube 66. When the first solenoid valve 64 is opened, the gas in the first air bladder 62 can be discharged, thereby controlling the deflated state of the first air bladder 62. Then, the stopper plate 53 can be moved to realize the automatic replacement of oil, reduce manual operation, realize the timed automatic replacement of liquid, and make oil replacement more convenient.
[0023] As a preferred embodiment of the present invention, when the storage box 51 is located inside the support frame 4, the hollow cavity 52 inside the storage box 51 is in communication with the pump housing 1, and a second solenoid valve 10 is provided at the communication point. A connecting component 7 is provided at the communication point between the storage box 51 and the second solenoid valve 10, and at the communication point between the storage box 51 and the pump housing 1 through the external pipe. refer to Figure 6 and Figure 7 The second solenoid valve 10 is located inside the pump housing 1. When the storage box 51 is completely placed inside the support frame 4, the storage box 51 is connected to the pump housing 1 through the connecting component 7. When waste liquid needs to be extracted, the second solenoid valve 10 is opened, allowing the waste liquid to enter the hollow cavity 52 inside the storage box 51 through the second solenoid valve 10. When the waste liquid and cleaning agent have been completely extracted from the pump housing 1, the second solenoid valve 10 can be closed. At this time, the pump housing 1 is closed again, and new lubricating oil will enter the pump housing 1. That is to say, the pump housing 1 will be refilled with new lubricating oil at this time, which facilitates the lubrication of the crankshaft 3 and avoids the situation where the bottom of the pump housing 1 cannot be sealed when changing the oil, resulting in oil leakage.
[0024] As a preferred embodiment of the present invention, the connecting component 7 includes a corrugated sleeve 71 and a third spring 72 disposed inside the corrugated sleeve 71, wherein the corrugated sleeve 71 disposed at the second solenoid valve 10 is fixedly disposed at the top of the storage box 51, and the corrugated sleeve 71 disposed at the external tube is fixedly disposed on one side of the storage box 51. refer to Figure 7 A third spring 72 is provided inside the corrugated sleeve 71. When the storage box 51 is placed inside the pump housing 1, the third spring 72 is compressed, which in turn compresses the corrugated sleeve 71. When the storage box 51 is placed in the appropriate position, the third spring 72 drives the corrugated sleeve 71 to gradually recover, and it will communicate with the pump housing 1, thereby facilitating the extraction and replacement of liquid. When the storage box 51 is disassembled, the new storage box 51 can repeat the above steps and form a new communication with the pump housing 1, thus forming a repeatable replacement step. This allows the oil to be replaced manually without disassembling the pump housing 1, ensuring the convenience of oil replacement.
[0025] In a preferred embodiment of the present invention, a sealing film 73 is provided inside the corrugated sleeve 71 on the support frame 4, and a piercing plate 8 for piercing the sealing film 73 is slidably provided inside the support frame 4. Another corrugated sleeve 71 and a third spring 72 are provided on the outside of the piercing plate 8. The piercing plate 8 is located inside the third spring 72. The two piercing plates 8 are connected by a connecting rod, and a second airbag 9 is provided on the connecting rod. The first solenoid valve 64 communicates with the second airbag 9. refer to Figure 5 , Figure 6 and Figure 7When the storage box 51 is completely placed inside the support frame 4, ensure that all connecting components 7 are in a connected state. Since the storage box 51 is a separate unit, the cavity 52 storing cleaning agent and new lubricating oil is sealed by the sealing membrane 73 to ensure the quality of the oil and prevent leakage. When the stopper plate 53 moves, that is, when the equipment is changing the oil, the gas in the first air bladder 62 is discharged and gradually enters the second air bladder 9. When the second air bladder 9 inflates, it pushes the spike plate 8 closer to the sealing membrane 73. As the spike plate 8 moves, the spikes on the spike plate 8 puncture the sealing membrane 73, so that the cavity 52 is connected to the external pipe through the connecting component 7. When it is connected to the external pipe, in conjunction with the movement of the stopper plate 53, the cleaning agent and new lubricating oil in the cavity 52 can be squeezed out and enter the pump housing 1 to complete the replacement and collection of the liquid. At the same time, it ensures the quality of the liquid to be replaced when the oil has not been replaced and prevents leakage and deterioration.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-pressure cleaner pump head device, comprising a pump housing (1), a pump head (2) disposed on the pump housing (1), a crankshaft (3) rotatably disposed within the pump housing (1), and a support frame (4) fixedly disposed at the bottom of the pump housing (1), characterized in that: Also includes: A storage component (5) for replenishing and collecting lubricating oil is movably disposed within the support frame (4). The storage component (5) includes a storage box (51) movably disposed within the support frame (4), and the storage box (51) is provided with multiple cavities (52) for collecting and storing lubricating oil. Multiple membranes are provided within the cavities (52), and each pair of cavities (52) is separated by a membrane. A stopper plate (53) is slidably disposed within the storage box (51), and when the stopper plate (53) slides along the inner wall of the storage box (51), the lubricating oil in the pump housing (1) enters the cavity (52), and the lubricating oil in the storage box (51) enters the pump housing (1).
2. The high-pressure cleaning pump head device as described in claim 1, characterized in that: The storage box (51) has at least three cavities (52), one of which is hollow. One of the cavities (52) stores cleaning agent, and another of the cavities (52) is filled with new lubricating oil. The hollow cavity (52) is connected to the bottom of the pump housing (1), and the other two cavities (52) are connected to the top of the pump housing (1) through an external tube. The three cavities (52) are arranged as a hollow cavity (52), a cleaning agent cavity (52), and a lubricating oil cavity (52).
3. The high-pressure cleaning machine pump head equipment as described in claim 2, characterized in that: The storage component (5) is provided with a thrust component (6) for moving the stopper plate (53) and pushing the liquid out of the cavity (52). The thrust component (6) includes a first solenoid valve (64) provided at the end of the support frame (4). The storage box (51) is provided with a first airbag (62), and the end of the first airbag (62) is fixedly provided on the stopper plate (53). At the same time, the first airbag (62) passes through multiple films. When the storage box (51) is located in the support frame (4), the other end of the first airbag (62) passing through the films communicates with the first solenoid valve (64), and a gas control element is provided at the communication point.
4. The high-pressure cleaning machine pump head equipment as described in claim 3, characterized in that: A flexible tube (61) is sleeved on the outside of the first airbag (62), and a first spring (63) is provided between the flexible tube (61) and the first airbag (62).
5. The high-pressure cleaning machine pump head equipment as described in claim 4, characterized in that: The air control device includes a vent pipe (66) that is slidably disposed in the storage box (51). The vent pipe (66) is hollow inside and has two through holes symmetrically opened. A second spring (67) is also sleeved on the vent pipe (66). A pin (65) that is in active contact with the second spring (67) is provided on one side of the first solenoid valve (64).
6. The high-pressure cleaning machine pump head equipment as described in claim 5, characterized in that: When the storage box (51) is located inside the support frame (4), the hollow cavity (52) inside the storage box (51) is connected to the pump housing (1), and a second solenoid valve (10) is provided at the connection point. A connecting component (7) is provided at the connection point between the storage box (51) and the second solenoid valve (10) and at the connection point between the storage box (51) and the pump housing (1) through the external pipe.
7. The high-pressure washer pump head device as described in claim 6, characterized in that: The connecting assembly (7) includes a corrugated sleeve (71) and a third spring (72) disposed inside the corrugated sleeve (71). The corrugated sleeve (71) disposed at the second solenoid valve (10) is fixedly disposed at the top of the storage box (51). The corrugated sleeve (71) disposed at the external tube is fixedly disposed on one side of the storage box (51).
8. The high-pressure washer pump head device as described in claim 7, characterized in that: A sealing membrane (73) is provided inside the corrugated sleeve (71) on the support frame (4). A piercing plate (8) for piercing the sealing membrane (73) is slidably provided inside the support frame (4). Another corrugated sleeve (71) and a third spring (72) are provided on the outside of the piercing plate (8). The piercing plate (8) is located inside the third spring (72). The two piercing plates (8) are connected by a connecting rod, and a second airbag (9) is provided on the connecting rod. The first solenoid valve (64) and the second airbag (9) are interconnected.