High-pressure cleaning equipment

Abstract

The present invention belongs to the technical field of high-pressure cleaning water pumps, and specifically relates to a high-pressure cleaning device, comprising a water pump housing consisting of a transmission housing, a piston sleeve, a water delivery housing and an end sealing plate; the transmission housing and the piston sleeve are fixedly connected by bolts; through the first sealing plate, the second sealing plate, the hanging rod and the clamping rod in conjunction with the setting of the first spring and the second spring, in the initial state, the second sealing plate is ensured to be in a relatively fixed position; when the second spring fails, the first sealing plate cannot quickly block the water inlet side; at this time, the relatively high-pressure water of the reflux can be used to squeeze the first sealing plate, so that the first sealing plate and the second sealing plate are merged, and the relative fixed state of the second sealing plate is simultaneously broken; then, the merged first sealing plate and the second sealing plate can quickly block the water inlet side under the action of the first spring, thereby extending the service life of the high-pressure water pump and the high-pressure cleaning device, and at the same time ensuring that the currently ongoing high-pressure cleaning action is not greatly affected.

Description

Technical Field

[0001] The invention belongs to the technical field of high-pressure cleaning water pumps, in particular to a high-pressure cleaning device. Background Art

[0002] High-pressure cleaning equipment is a type of cleaning equipment that relies on a high-pressure water pump. It is commonly used in the field of car beauty and is also common in other fields.

[0003] A Chinese patent with publication number CN119594009A discloses a high-pressure cleaning pump, relating to the field of high-pressure cleaning pumps, comprising a pump body, an annular chamber with a compensating coupling provided on the inner side thereof, and a sealing ring located outside a ball plunger connected to the top of the annular chamber via the compensating coupling. The present invention provides the compensating coupling, so that when the first telescopic spring experiences elastic fatigue, the ball plunger and the sealing ring cannot contact each other, and the ball plunger cannot block the top of the second sleeve. At this time, when the plunger moves, some water flows into the second sleeve under the impact of the plunger, thereby causing the ejector rod to drive the annular sleeve upward. As the sealing ring moves upward, the ball plunger again blocks the inner wall of the sealing ring. Simultaneously, the bottom of the ball plunger contacts the top of the second sleeve, stopping water from entering the second sleeve. Simultaneously, the third telescopic spring returns to its original position, thereby sealing the gap between the ball plunger and the sealing ring through the movement of the sealing ring, thereby extending the service life of the equipment.

[0004] In the above-mentioned prior art, the return water is used to drive the mechanical structure to operate, thereby compensating for the problem caused by the failure of the spring, which is not reliable. It can be understood that when using the high-pressure cleaning equipment, it mainly relies on the high-pressure water pump. Since the output of high-pressure water of the high-pressure water pump, especially the plunger-type high-pressure water pump, mainly depends on the inlet and outlet valve bodies, and the inlet and outlet valve bodies are mainly affected by the spring, after the spring fails, it will cause greater problems. For example, after the spring at the water inlet valve body position fails, the water intake will not be greatly affected, but when the high-pressure water is output, the water inlet valve body cannot respond to close, resulting in internal pressure imbalance, and the high-pressure conditions for outputting high-pressure water cannot be met. Therefore, high-pressure water cannot be output, affecting the current ongoing task.

[0005] To this end, the present invention provides a high-pressure cleaning device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a high-pressure cleaning device according to the present invention comprises:

[0008] The water pump housing consists of a transmission housing, a piston sleeve, a water delivery housing and an end sealing plate;

[0009] The transmission housing and the piston sleeve are fixedly connected by bolts, the piston sleeve and the water supply housing are fixedly connected by bolts, and the water supply housing and the end sealing plate are fixedly connected by bolts; a piston rod is movably connected in the piston sleeve, and the piston rod is used to adjust the pressure in the water supply housing; a water storage chamber is provided in the water supply housing;

[0010] The water inlet valve body is arranged at the bottom of the water delivery housing and is used to control the water inlet;

[0011] The water outlet valve body is arranged on the top of the water delivery housing and is used to control the water outlet;

[0012] The water inlet valve body includes a first sealing plate, a second sealing plate and a first limiting rod; the first sealing plate and the second sealing plate are both slidably connected to the first limiting rod, and the bottom of the first limiting rod is fixed to the center of the bottom surface of the water inlet chamber in the water delivery housing; the first limiting rod is arranged collinearly with the center line of the water inlet chamber; a second spring is further fixed between the first sealing plate and the second sealing plate, and the second spring is sleeved on the first limiting rod; the water inlet chamber is connected to the water storage chamber;

[0013] The water inlet valve body also includes a first spring and a clamping rod, the two ends of the first spring are respectively fixed to the bottom surface of the water inlet chamber and the side wall of the second sealing plate; the clamping rod is hinged in the second sealing plate, and the second sealing plate cooperates with the first spring and the clamping rod to make the position of the second sealing plate relatively fixed.

[0014] Preferably, it also includes:

[0015] A water supply and drainage module consisting of a transmission shaft, a crankshaft, and a connecting arm;

[0016] The transmission shaft passes through the transmission housing, and the crankshaft is fixedly connected to the transmission shaft. The crankshaft is arranged in the transmission housing, and the connecting arm is hinged to the crankshaft; one end of the connecting arm is hinged to the crankshaft, and the other end is hinged to the piston rod; a piston movable chamber is provided in the piston sleeve, and the connecting arm and the piston rod are movably connected in the piston movable chamber;

[0017] A blocking portion is provided in the middle of the piston movable cavity for limiting the displacement of the piston rod.

[0018] Preferably, a movable groove is provided on the side wall of the water inlet chamber corresponding to the second sealing plate, and a hanging rod is hinged in the movable groove.

[0019] Preferably, a second bottom plate is provided on one side of the water inlet chamber, and the second bottom plate is plugged into the water inlet chamber and fastened with screws; a through hole is opened in the center of the second bottom plate and is collinear with the center line of the water inlet chamber.

[0020] Preferably, a water outlet cavity is provided in the water delivery housing corresponding to the water outlet valve body, and a first bottom plate is fixed to the bottom of the water outlet cavity via screws, and a through hole is opened in the center of the first bottom plate and is collinear with the center line of the water outlet cavity.

[0021] Preferably, the water outlet valve body includes a valve sleeve and a fourth spring; the valve sleeve is arranged in the water outlet cavity and can move in the water outlet cavity; the two ends of the fourth spring are respectively fixed between the top of the valve sleeve and the top of the water outlet cavity.

[0022] Preferably, the water outlet valve body also includes a second limiting rod and a third limiting rod; the third limiting rod is clamped on the first bottom plate, and the bottom of the second limiting rod is penetrated and limited by the third limiting rod; the top and bottom of the valve sleeve are both provided with through holes, and the top of the second limiting rod extends through to the inside of the valve sleeve; spheres are provided on the top and bottom of the second limiting rod.

[0023] Preferably, a slide is fixedly connected to the side wall of the valve sleeve, and the slide is slidably matched with the inner wall of the water inlet chamber; a drainage groove is provided on the top surface of the valve sleeve for accelerating the return water to flow into the interior of the valve sleeve.

[0024] Preferably, the third limiting rod has sliding grooves at both ends, and a sliding rod parallel to the third limiting rod is fixed in the sliding groove; a clamping block is slidably connected to the sliding rod, and a vertical shifting rod is fixed to the bottom of the clamping block; a third spring is sleeved on the sliding rod, and both ends of the third spring are fixed to the bottom surface of the sliding groove and the clamping block;

[0025] A corresponding card slot is provided on the first bottom plate, and the card block is engaged with the card slot.

[0026] Preferably, a water outlet pipe is provided on the top of the water delivery housing, and a water inlet pipe is provided on the side wall of the end sealing plate, the water outlet pipe is connected to the water outlet cavity, and the water inlet pipe is connected to the water inlet cavity.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The high-pressure cleaning equipment described in the present invention, through the arrangement of the first sealing plate, the second sealing plate, the hanging rod and the clamping rod in conjunction with the first spring and the second spring, ensures that the second sealing plate is in a relatively fixed position in the initial state. When the second spring fails, the first sealing plate cannot quickly block the water inlet side. At this time, the relatively high-pressure water flowing back can be used to squeeze the first sealing plate, so that the first sealing plate and the second sealing plate are merged, and the relatively fixed state of the second sealing plate is simultaneously broken. Subsequently, the merged first sealing plate and the second sealing plate can quickly block the water inlet side under the action of the first spring, thereby extending the service life of the high-pressure water pump and the high-pressure cleaning equipment, and at the same time ensuring that the currently ongoing high-pressure cleaning action is not greatly affected.

[0029] 2. The high-pressure cleaning equipment described in the present invention, through the setting of the valve sleeve and the second limiting rod, after the fourth spring fails, resulting in insufficient water outlet pressure, uses the through hole at the top of the valve sleeve in conjunction with the second limiting rod to increase the valve sleeve's own gravity when the high-pressure side flows back, thereby compensating for the problem of insufficient water pressure caused by the failure of the fourth spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] Figure 1 It is a perspective view of the present invention;

[0032] Figure 2 is a first partial stereogram of the present invention;

[0033] Figure 3 It is a left side view of the present invention;

[0034] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle;

[0035] Figure 5 yes Figure 4 The enlarged view of point Ⅰ in the figure;

[0036] Figure 6 yes Figure 4 The enlarged view of point II in the figure;

[0037] Figure 7 is a second partial perspective view of the present invention;

[0038] Figure 8 It is a three-dimensional diagram of the water inlet valve body of the present invention;

[0039] Figure 9 It is a three-dimensional diagram of the water outlet valve body of the present invention;

[0040] In the figure: 10, transmission housing; 101, transmission shaft; 102, crankshaft; 103, connecting arm; 104, piston rod; 11, piston sleeve; 111, piston movable chamber; 112, blocking part; 12, water supply housing; 121, water outlet pipe; 122, water storage chamber; 123, water inlet chamber; 124, water outlet chamber; 125, first bottom plate; 126, hanging rod; 127, second bottom plate; 13, end sealing plate; 131, Water inlet pipe; 2. Water inlet valve body; 21. First limiting rod; 22. First closing plate; 23. Second closing plate; 231. Clamping rod; 24. First spring; 25. Second spring; 3. Water outlet valve body; 31. Valve sleeve; 311. Drainage groove; 312. Slide plate; 313. Through hole; 32. Second limiting rod; 33. Third limiting rod; 331. Clamping block; 332. Third spring; 333. Push rod; 34. Fourth spring. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0042] like Figures 1 to 9 As shown, a high-pressure cleaning device according to an embodiment of the present invention includes:

[0043] The water pump housing consists of a transmission housing 10, a piston sleeve 11, a water delivery housing 12 and an end sealing plate 13;

[0044] The transmission housing 10 and the piston sleeve 11 are fixedly connected by bolts, the piston sleeve 11 and the water delivery housing 12 are fixedly connected by bolts, and the water delivery housing 12 and the end sealing plate 13 are fixedly connected by bolts; a piston rod 104 is movably connected in the piston sleeve 11, and the piston rod 104 is used to adjust the pressure in the water delivery housing 12; a water storage chamber 122 is provided in the water delivery housing 12;

[0045] The water inlet valve body 2 is provided at the bottom of the water delivery housing 12 and is used to control water inlet;

[0046] The water outlet valve body 3 is provided on the top of the water delivery housing 12 and is used to control the water outlet;

[0047] The water inlet valve body 2 includes a first sealing plate 22, a second sealing plate 23, and a first limiting rod 21; the first sealing plate 22 and the second sealing plate 23 are both slidably connected to the first limiting rod 21, and the bottom of the first limiting rod 21 is fixedly connected to the center of the bottom surface of the water inlet chamber 123 in the water delivery housing 12; the first limiting rod 21 and the center line of the water inlet chamber 123 are arranged collinearly; a second spring 25 is further fixedly connected between the first sealing plate 22 and the second sealing plate 23, and the second spring 25 is sleeved on the first limiting rod 21; the water inlet chamber 123 is connected to the water storage chamber 122;

[0048] The water inlet valve body 2 also includes a first spring 24 and a clamping rod 231. The two ends of the first spring 24 are respectively fixed to the bottom surface of the water inlet chamber 123 and the side wall of the second sealing plate 23; the clamping rod 231 is hinged in the second sealing plate 23. The second sealing plate 23 cooperates with the first spring 24 and the clamping rod 231 to make the position of the second sealing plate 23 relatively fixed.

[0049] When using the high-pressure cleaning equipment, it mainly relies on the high-pressure water pump. Since the output of high-pressure water of the high-pressure water pump, especially the plunger-type high-pressure water pump, mainly depends on the water inlet and outlet valve body 3, and the water inlet and outlet valve body 3 is mainly affected by the spring, after the spring fails, it will cause major problems. For example, after the spring at the water inlet valve body 2 fails, the water inlet will not be greatly affected. However, when the high-pressure water is output, the water inlet valve body 2 cannot respond to close, resulting in an internal pressure imbalance, and the high-pressure conditions for outputting high-pressure water cannot be met. Therefore, high-pressure water cannot be output, affecting the current task in progress.

[0050] In one embodiment of the present invention, when a high-pressure water pump performs high-pressure cleaning, the reciprocating motion of the piston rod 104 causes the pressure in the water delivery housing 12 to change regularly. The following is an explanation based on the specific water inlet and outlet:

[0051] When the water is inletted, the piston rod 104 contracts, the volume of the water chamber 122 in the water supply housing 12 increases, and the pressure decreases. At this time, the pressure on the water inlet side is higher than the pressure in the water supply housing 12, thereby being able to push the water inlet valve body 2 open. Specifically, the pressure makes the first sealing plate 22 move toward the relatively fixed second sealing plate 23, so that the water inlet chamber 123 can be connected with the water storage chamber 122 inside the water supply housing 12. It can be understood that a through hole is provided between the water storage chamber 122 and the water inlet chamber 123. In the initial state, under the action of the second spring 25, the first sealing plate 22 will move away from the second sealing plate 23, and the first sealing plate 22 is located on one side of the through hole between the water storage chamber 122 and the water inlet chamber 123. Under the influence of the internal pressure of the water storage chamber 122 and the pressure on the water inlet side, the first sealing plate 22 maintains its relative position unchanged. At this time, the water flow on the water inlet side cannot break through the first sealing plate 22 and enter the water inlet chamber 123, and then pass through the water inlet chamber 123 and the through hole When the piston rod 104 is retracted, the pressure in the water storage chamber 122 decreases, and the pressure on the water inlet side is higher than the pressure in the water storage chamber 122. At this time, the pressure can push open the first sealing plate 22, so that the water can flow into the water storage chamber 122 through the water inlet chamber 123 and the through hole. The above is the water inflow behavior caused by the contraction of the piston rod 104. When the piston rod 104 is reset immediately after contraction, the water storage chamber 122 is filled with the water just sucked in. At this time, the piston rod 104 is reset immediately, causing the pressure in the water storage chamber 122 to increase rapidly. Under the action of pressure and the assistance of the second spring 25, the first sealing plate 22 will be quickly reset to block the water flow on the water inlet side. As the pressure in the water storage chamber 122 continues to increase, the water outlet valve body 3 will be pushed open. At this time, the water in the water storage chamber 122 will be discharged from the water outlet valve body 3 under the action of high pressure, thereby completing the output of high-pressure water. The above is the water discharge behavior caused by the reset of the piston rod 104.However, when the second spring 25 in the water inlet valve body 2 fails, the first sealing plate 22 cannot be reset immediately. When the piston rod 104 is reset, high-pressure water may flow into the water inlet side again, resulting in the internal pressure of the water storage chamber 122 being insufficient to push open the water outlet valve body 3. In one embodiment, in order to address the above problem, an oblique protrusion is provided on the side wall of the first sealing plate 22 facing the water inlet side. Correspondingly, in one embodiment, a symmetrically arranged second sealing plate 23 is also provided, and an oblique protrusion is also provided on the side of the second sealing plate 23 facing away from the first sealing plate 22. When the second spring 25 fails, since the first sealing plate 22 cannot be reset, the water flow will quickly pass through the first sealing plate 22 under the action of high pressure, and collide with the oblique protrusion of the first sealing plate 22. The first sealing plate 22 is pressed against the second sealing plate 23, and the first sealing plate 22 is pressed against the second sealing plate 23, and the second sealing plate 23 is pressed against the first sealing plate 22. The first sealing plate 22 is pressed against the second sealing plate 23, and the second sealing plate 23 is pressed against the second sealing plate 23. The first sealing plate 22 is pressed against the second sealing plate 23, and the second sealing plate 23 is pressed against the second sealing plate 23.

[0052] It is worth noting that the first spring 24 and the clamping rod 231 are used to limit the second sealing plate 23, so that the second sealing plate 23 maintains a relative position unchanged in the initial state, or when the second spring 25 has not failed. When the first sealing plate 22 and the second sealing plate 23 are merged, this state is broken, and the first spring 24 releases elastic potential energy to help the combined body of the first sealing plate 22 and the second sealing plate 23 to move toward the water inlet side, thereby closing the water inlet side. Among them, the first sealing plate 22 is provided with an annular protrusion on the side facing the second sealing plate 23, and the corresponding side of the second sealing plate 23 is provided with an annular recess. When the first sealing plate 22 and the second sealing plate 23 are merged, that is, the annular protrusion and the annular recess are plugged into each other, they can also be adsorbed based on the magnets filled inside to keep the combined body of the first sealing plate 22 and the second sealing plate 23 stable.

[0053] like Figures 1 to 4 As shown, it also includes:

[0054] A water supply and drainage module consisting of a transmission shaft 101, a crankshaft 102, and a connecting arm 103;

[0055] The transmission shaft 101 passes through the transmission housing 10, and the crankshaft 102 is fixedly connected to the transmission shaft 101. The crankshaft 102 is arranged in the transmission housing 10, and the connecting arm 103 is hinged to the crankshaft 102; one end of the connecting arm 103 is hinged to the crankshaft 102, and the other end is hinged to the piston rod 104; a piston movable chamber 111 is provided in the piston sleeve 11, and the connecting arm 103 and the piston rod 104 are movably connected in the piston movable chamber 111;

[0056] A blocking portion 112 is provided in the middle of the piston movable chamber 111 for limiting the displacement of the piston rod 104 .

[0057] In one embodiment, the power source of the plunger high-pressure water pump is a servo motor or a motor, based on the transmission shaft 101 driving the crankshaft 102, and the crankshaft 102 drives the connecting arm 103 to perform telescopic movement, thereby realizing the reciprocating movement of the piston rod 104 in the piston active chamber 111. The reciprocating movement of the piston rod 104 realizes the adjustment of the pressure of the water storage chamber 122 and realizes the water inlet and outlet action.

[0058] like Figures 1 to 6 As shown, a movable groove is provided on the side wall of the water inlet chamber 123 corresponding to the second sealing plate 23, and a hanging rod 126 is hinged in the movable groove.

[0059] As mentioned above, since the first sealing plate 22 does not need to be started in the initial state, or when the second spring 25 has not failed, it is controlled to maintain a fixed relative position, and the failure of the first spring 24 over time can also be avoided. In one embodiment, in the initial state, the second sealing plate 23 can be limited by the cooperation of the hanging rod 126 and the clamping rod 231, and the elastic potential energy of the first spring 24 that is about to be released can be kept stable in the clamping cooperation between the hanging rod 126 and the clamping rod 231, thereby ensuring that the position of the second sealing plate 23 in the initial state is relatively fixed. When the first sealing plate 22 and the second sealing plate 23 are clamped together, the annular protrusion on one side of the first sealing plate 22 will be inserted into the annular recess on one side of the second sealing plate 23, and during the insertion process, the annular protrusion will squeeze the clamping rod 231 in the annular recess, causing the clamping rod 231 to rotate clockwise (such as Figure 6 In the direction shown), after the locking rod 231 rotates clockwise, it can squeeze the hanging rod 126, so that the hanging rod 126 is separated from the locking rod 231. When the hanging rod 126 is separated from the locking rod 231, the first spring 24 will quickly release its elastic potential energy, so that the combination of the first sealing plate 22 and the second sealing plate 23 can move toward the water inlet side. Combined with the high-pressure environment inside the water storage chamber 122 caused by the reset of the piston rod 104, the combination of the first sealing plate 22 and the second sealing plate 23 can close the water inlet side, thereby outputting high-pressure water;

[0060] It is worth noting that at the initial moment, that is, when the second spring 25 has not failed, since the position of the second sealing plate 23 is relatively fixed and is located on one side of the through hole between the water inlet chamber 123 and the water storage chamber 122, even if the second spring 25 fails at this time, the position of the second sealing plate 23 remains unchanged. At this time, the piston rod 104 is reset, and the water flows in the opposite direction through the through hole into the water inlet chamber 123, which will only apply pressure to the side of the second sealing plate 23 facing the first sealing plate 22, and will not directly act on the clamping rod 231, nor will it break the fixed state of the second sealing plate 23. Only after the high-pressure water acts on the oblique protrusion on the first sealing plate 22, prompting the first sealing plate 22 to move toward the second sealing plate 23 and merge with the second sealing plate 23, can the fixed state of the second sealing plate 23 be broken, so that the first sealing plate 22 and the second sealing plate 23 are merged.

[0061] like Figures 1 to 6 As shown, a second bottom plate 127 is provided on one side of the water inlet chamber 123, and the second bottom plate 127 is plugged into the water inlet chamber 123 and fastened by screws; a through hole is opened in the center of the second bottom plate 127 and is collinear with the center line of the water inlet chamber 123.

[0062] like Figures 1 to 5 As shown, a water outlet cavity 124 is provided in the water supply housing 12 corresponding to the water outlet valve body 3, and a first bottom plate 125 is fixed to the bottom of the water outlet cavity 124 by screws, and a through hole is opened in the center of the first bottom plate 125 which is collinear with the center line of the water outlet cavity 124.

[0063] like Figures 1 to 5 、 Figures 7 to 9 As shown, the water outlet valve body 3 includes a valve sleeve 31 and a fourth spring 34; the valve sleeve 31 is arranged in the water outlet chamber 124 and can move in the water outlet chamber 124; the two ends of the fourth spring 34 are respectively fixed between the top of the valve sleeve 31 and the top of the water outlet chamber 124.

[0064] In one embodiment, when the piston rod 104 is reset, if there is no abnormality in the water inlet valve body 2, that is, when the second spring 25 has not failed, when the piston rod 104 is reset, the high pressure inside the water storage chamber 122 cooperates with the second spring 25 to prompt the water inlet valve body 2 to close the water inlet side. At this time, the internal pressure of the water storage chamber 122 gradually increases, which can overcome the elastic force of the fourth spring 34 and the gravity of the valve sleeve 31, thereby separating the valve sleeve 31 from the first bottom plate 125. At this time, high-pressure water will flow into the water outlet side through the through hole, completing the output of high-pressure water; it is worth noting that in the initial state, under the action of the elastic force of the fourth spring 34 and the gravity of the valve sleeve 31 itself, the valve sleeve 31 will be close to the surface of the first bottom plate 125, thereby blocking the water outlet side.

[0065] like Figures 1 to 5 、 Figures 7 to 9As shown, the water outlet valve body 3 also includes a second limiting rod 32 and a third limiting rod 33; the third limiting rod 33 is clamped on the first bottom plate 125, and the bottom of the second limiting rod 32 is penetrated and limited by the third limiting rod 33; the top and bottom of the valve sleeve 31 are both provided with a through hole 313, and the top of the second limiting rod 32 extends through to the inside of the valve sleeve 31; the top and bottom of the second limiting rod 32 are both provided with a sphere.

[0066] In one embodiment, when the water outlet valve body 3 is in a normal state, the valve body is in close contact with the surface of the first bottom plate 125, completing the blockage of the water outlet side. However, when the fourth spring 34 fails, the output of high-pressure water may not be guaranteed. Based on this, in one embodiment of the present invention, when the fourth spring 34 fails, the high pressure inside the water storage chamber 122 pushes open the valve sleeve 31, causing the second limiting rod 32 and the valve sleeve 31 to slide relative to each other. At this time, the balls at the top and bottom of the second limiting rod 32 are separated from the valve sleeve 31, so that the through hole 313 on the valve sleeve 31 is no longer blocked. At this time, some water fills the interior of the valve sleeve 31, causing the entire valve sleeve 31 to rise due to gravity, thereby offsetting the problem of being unable to output high-pressure water due to the failure of the fourth spring 34.

[0067] It is worth noting that in the initial state, that is, when the fourth spring 34 has not failed, the fourth spring 34 needs to cooperate with the gravity of the valve sleeve 31 itself to enhance the internal pressure of the water storage chamber 122, that is, only when the internal pressure of the water storage chamber 122 is greater than the gravity of the valve sleeve 31 itself plus the elastic force of the fourth spring 34, and the pressure of the water storage chamber 122 is A at this time, can high-pressure water be output. When the fourth spring 34 fails, the pressure of the water storage chamber 122 is much lower than A, which can push open the valve sleeve 31, so that high-pressure water cannot be output. In this case, the cooperation between the valve sleeve 31 and the second limiting rod 32 can make up for the problem of insufficient gravity of the valve sleeve 31 itself caused by the failure of the fourth spring 34. In addition, it should be noted that since the water inlet efficiency of the top of the valve sleeve 31 is much greater than that of the bottom (such as Figure 5 As shown in FIG, the through hole 313 at the bottom of the valve sleeve 31 is always connected to the second limiting rod 32, and the through hole 313 at the top of the valve sleeve 31 will be completely open after being separated from the sphere at the top of the second limiting rod 32. The purpose of this practice is that when the fourth spring 34 on the valve sleeve 31 fails, the valve sleeve 31 may not be tightly fitted with the first bottom plate 125. When the piston rod 104 contracts, it may cause the high-pressure side water to flow back and then flow into the valve sleeve 31, so that the valve sleeve 31 rises rapidly due to its own gravity.

[0068] like Figure 9 As shown, a slide plate 312 is fixed to the side wall of the valve sleeve 31, and the slide plate 312 slides with the inner wall of the water inlet chamber 123; a drainage groove 311 is opened on the top surface of the valve sleeve 31 to accelerate the return water to flow into the valve sleeve 31.

[0069] In one embodiment, the slide plate 312 provided on the side wall of the valve sleeve 31 can ensure that the valve sleeve 31 can stably slide in the water outlet chamber 124 under the action of the water pressure of the water storage chamber 122, and the drainage groove 311 opened on the top of the valve sleeve 31 can, when the piston rod 104 retracts, if the bottom of the valve sleeve 31 is not tightly attached to the surface of the first bottom plate 125, it may cause high-pressure water on the water outlet side to flow back. At this time, the drainage groove 311 can guide the reflux water into the interior of the valve sleeve 31, and when the piston rod 104 is subsequently reset, the valve sleeve 31 lifted by its own gravity can increase the internal pressure of the water storage chamber 122, thereby outputting high-pressure water.

[0070] like Figures 1 to 5 、 Figure 9 As shown, the third limiting rod 33 has sliding grooves at both ends, and a sliding rod parallel to the third limiting rod 33 is fixed in the sliding groove; a clamping block 331 is slidably connected to the sliding rod, and a vertical shifting rod 333 is fixed to the bottom of the clamping block 331; a third spring 332 is sleeved on the sliding rod, and both ends of the third spring 332 are fixed to the bottom surface of the sliding groove and the clamping block 331;

[0071] A corresponding slot is defined on the first bottom plate 125 , and the locking block 331 is engaged with the slot.

[0072] like Figures 1 to 4 As shown, a water outlet pipe 121 is provided on the top of the water supply housing 12 , and a water inlet pipe 131 is provided on the side wall of the end sealing plate 13 . The water outlet pipe 121 is connected to the water outlet cavity 124 , and the water inlet pipe 131 is connected to the water inlet cavity 123 .

[0073] Working Principle: When a high-pressure water pump is used for high-pressure cleaning, the reciprocating motion of the piston rod 104 causes the pressure in the water delivery housing 12 to change regularly. The following is an explanation based on the specific water inlet and outlet:

[0074] When the water is inletted, the piston rod 104 contracts, the volume of the water chamber 122 in the water supply housing 12 increases, and the pressure decreases. At this time, the pressure on the water inlet side is higher than the pressure in the water supply housing 12, thereby being able to push the water inlet valve body 2 open. Specifically, the pressure makes the first sealing plate 22 move toward the relatively fixed second sealing plate 23, so that the water inlet chamber 123 can be connected with the water storage chamber 122 inside the water supply housing 12. It can be understood that a through hole is provided between the water storage chamber 122 and the water inlet chamber 123. In the initial state, under the action of the second spring 25, the first sealing plate 22 will move away from the second sealing plate 23, and the first sealing plate 22 is located on one side of the through hole between the water storage chamber 122 and the water inlet chamber 123. Under the influence of the internal pressure of the water storage chamber 122 and the pressure on the water inlet side, the first sealing plate 22 maintains its relative position unchanged. At this time, the water flow on the water inlet side cannot break through the first sealing plate 22 and enter the water inlet chamber 123, and then pass through the water inlet chamber 123 and the through hole When the piston rod 104 is retracted, the pressure in the water storage chamber 122 decreases, and the pressure on the water inlet side is higher than the pressure in the water storage chamber 122. At this time, the pressure can push open the first sealing plate 22, so that the water can flow into the water storage chamber 122 through the water inlet chamber 123 and the through hole. The above is the water inflow behavior caused by the contraction of the piston rod 104. When the piston rod 104 is reset immediately after contraction, the water storage chamber 122 is filled with the water just sucked in. At this time, the piston rod 104 is reset immediately, causing the pressure in the water storage chamber 122 to increase rapidly. Under the action of pressure and the assistance of the second spring 25, the first sealing plate 22 will be quickly reset to block the water flow on the water inlet side. As the pressure in the water storage chamber 122 continues to increase, the water outlet valve body 3 will be pushed open. At this time, the water in the water storage chamber 122 will be discharged from the water outlet valve body 3 under the action of high pressure, thereby completing the output of high-pressure water. The above is the water discharge behavior caused by the reset of the piston rod 104.However, when the second spring 25 in the water inlet valve body 2 fails, the first sealing plate 22 cannot be reset immediately. When the piston rod 104 is reset, high-pressure water may flow into the water inlet side again, resulting in the internal pressure of the water storage chamber 122 being insufficient to push open the water outlet valve body 3. In one embodiment, in order to address the above problem, an oblique protrusion is provided on the side wall of the first sealing plate 22 facing the water inlet side. Correspondingly, in one embodiment, a symmetrically arranged second sealing plate 23 is also provided, and an oblique protrusion is also provided on the side of the second sealing plate 23 facing away from the first sealing plate 22. When the second spring 25 fails, since the first sealing plate 22 cannot be reset, the water flow will quickly pass through the first sealing plate 22 under the action of high pressure, and collide with the oblique protrusion of the first sealing plate 22. The first sealing plate 22 is pressed against the second sealing plate 23, and the first sealing plate 22 is pressed against the second sealing plate 23, and the second sealing plate 23 is pressed against the first sealing plate 22. The first sealing plate 22 is pressed against the second sealing plate 23, and the second sealing plate 23 is pressed against the second sealing plate 23. The first sealing plate 22 is pressed against the second sealing plate 23, and the second sealing plate 23 is pressed against the second sealing plate 23.

[0075] It is worth noting that the first spring 24 and the clamping rod 231 are used to limit the second sealing plate 23, so that the second sealing plate 23 maintains a relative position unchanged in the initial state, or when the second spring 25 has not failed. When the first sealing plate 22 and the second sealing plate 23 are merged, this state is broken, and the first spring 24 releases elastic potential energy to help the combined body of the first sealing plate 22 and the second sealing plate 23 to move toward the water inlet side, thereby closing the water inlet side. Among them, the first sealing plate 22 is provided with an annular protrusion on the side facing the second sealing plate 23, and the corresponding side of the second sealing plate 23 is provided with an annular recess. When the first sealing plate 22 and the second sealing plate 23 are merged, that is, the annular protrusion and the annular recess are plugged into each other, they can also be adsorbed based on the magnets filled inside to keep the combined body of the first sealing plate 22 and the second sealing plate 23 stable.

[0076] When the water outlet valve body 3 is in a normal state, the valve body is in close contact with the surface of the first bottom plate 125, completing the blockage of the water outlet side. However, when the fourth spring 34 fails, the output of high-pressure water may not be guaranteed. Based on this, in one embodiment of the present invention, when the fourth spring 34 fails, the high pressure inside the water storage chamber 122 pushes open the valve sleeve 31, causing the second limiting rod 32 and the valve sleeve 31 to slide relative to each other. At this time, the balls at the top and bottom of the second limiting rod 32 are separated from the valve sleeve 31, so that the through hole 313 on the valve sleeve 31 is no longer blocked. At this time, some water fills the interior of the valve sleeve 31, causing the entire valve sleeve 31 to rise due to gravity, thereby offsetting the problem of being unable to output high-pressure water due to the failure of the fourth spring 34.

[0077] It is worth noting that in the initial state, that is, when the fourth spring 34 has not failed, the fourth spring 34 needs to cooperate with the gravity of the valve sleeve 31 to enhance the internal pressure of the water storage chamber 122. That is, only when the internal pressure of the water storage chamber 122 is greater than the gravity of the valve sleeve 31 plus the elastic force of the fourth spring 34, and the pressure of the water storage chamber 122 is A at this time, can high-pressure water be output. When the fourth spring 34 fails, the pressure of the water storage chamber 122 is much lower than A, which can push open the valve sleeve 31, so that high-pressure water cannot be output. In this case, the cooperation between the valve sleeve 31 and the second limit rod 32 can compensate for the failure of the fourth spring 34. The problem of insufficient gravity of the valve sleeve 31 itself. In addition, it should be noted that since the water inlet efficiency at the top of the valve sleeve 31 is much greater than that at the bottom, the through hole 313 at the bottom of the valve sleeve 31 is always connected to the second limiting rod 32, and the through hole 313 at the top of the valve sleeve 31 will be completely open after being separated from the top sphere of the second limiting rod 32. The purpose of this practice is that when the fourth spring 34 on the valve sleeve 31 fails, the valve sleeve 31 may not be able to fit tightly with the first bottom plate 125. When the piston rod 104 contracts, it may cause high-pressure side water to flow back and then pour into the valve sleeve 31, thereby causing the valve sleeve 31 to rise rapidly due to its own gravity.

[0078] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure cleaning device, characterized in that: include: A water pump housing consisting of a transmission housing (10), a piston sleeve (11), a water delivery housing (12) and an end sealing plate (13); The transmission housing (10) and the piston sleeve (11) are fixedly connected by bolts, the piston sleeve (11) and the water supply housing (12) are fixedly connected by bolts, and the water supply housing (12) and the end sealing plate (13) are fixedly connected by bolts; a piston rod (104) is movably connected in the piston sleeve (11), and the piston rod (104) is used to adjust the pressure in the water supply housing (12); a water storage chamber (122) is provided in the water supply housing (12); A water inlet valve body (2) is provided at the bottom of the water delivery housing (12) and is used to control water inlet; A water outlet valve body (3) is provided on the top of the water delivery housing (12) and is used to control water outlet; The water inlet valve body (2) comprises a first sealing plate (22), a second sealing plate (23) and a first limiting rod (21); the first sealing plate (22) and the second sealing plate (23) are both slidably connected to the first limiting rod (21); the bottom of the first limiting rod (21) is fixed to the center of the bottom surface of the water inlet chamber (123) in the water supply housing (12); the first limiting rod (21) and the center line of the water inlet chamber (123) are arranged collinearly; a second spring (25) is also fixed between the first sealing plate (22) and the second sealing plate (23), and the second spring (25) is sleeved on the first limiting rod (21); the water inlet chamber (123) is communicated with the water storage chamber (122); The water inlet valve body (2) further comprises a first spring (24) and a clamping rod (231), wherein the two ends of the first spring (24) are respectively fixed to the bottom surface of the water inlet chamber (123) and the side wall of the second sealing plate (23); the clamping rod (231) is hinged in the second sealing plate (23), and the second sealing plate (23) is relatively fixed in position under the cooperation of the first spring (24) and the clamping rod (231).

2. A high-pressure cleaning device according to claim 1, characterized in that: Also includes: A water supply and drainage module consisting of a transmission shaft (101), a crankshaft (102), and a connecting arm (103); The transmission shaft (101) passes through the transmission housing (10), and the crankshaft (102) is fixedly connected to the transmission shaft (101). The crankshaft (102) is arranged in the transmission housing (10), and the connecting arm (103) is hinged to the crankshaft (102); one end of the connecting arm (103) is hinged to the crankshaft (102), and the other end is hinged to the piston rod (104); a piston movable chamber (111) is provided in the piston sleeve (11), and the connecting arm (103) and the piston rod (104) are movably connected in the piston movable chamber (111); A blocking portion (112) is provided in the middle of the piston movable chamber (111) for limiting the displacement of the piston rod (104).

3. A high-pressure cleaning device according to claim 2, characterized in that: A movable groove is provided on the side wall of the water inlet cavity (123) corresponding to the second sealing plate (23), and a hanging rod (126) is hinged in the movable groove.

4. A high-pressure cleaning device according to claim 3, characterized in that: A second bottom plate (127) is provided on one side of the water inlet chamber (123), and the second bottom plate (127) is plugged into and fitted with the water inlet chamber (123) and fastened with screws; a through hole is provided in the center of the second bottom plate (127) and is collinear with the center line of the water inlet chamber (123).

5. A high-pressure cleaning device according to claim 4, characterized in that: A water outlet cavity (124) is provided in the water delivery housing (12) corresponding to the water outlet valve body (3), and a first bottom plate (125) is fixed to the bottom of the water outlet cavity (124) via screws, and a through hole is provided in the center of the first bottom plate (125) that is colinear with the center line of the water outlet cavity (124).

6. A high-pressure cleaning device according to claim 5, characterized in that: The water outlet valve body (3) comprises a valve sleeve (31) and a fourth spring (34); the valve sleeve (31) is arranged in the water outlet cavity (124) and is movable in the water outlet cavity (124); and two ends of the fourth spring (34) are respectively fixed between the top of the valve sleeve (31) and the top of the water outlet cavity (124).

7. The high-pressure cleaning equipment according to claim 6, characterized in that: The water outlet valve body (3) further comprises a second limiting rod (32) and a third limiting rod (33); the third limiting rod (33) is clamped on the first bottom plate (125), and the bottom of the second limiting rod (32) is penetrated and limited by the third limiting rod (33); the top and bottom of the valve sleeve (31) are both provided with through holes (313), and the top of the second limiting rod (32) penetrates and extends into the interior of the valve sleeve (31); and spheres are provided at the top and bottom of the second limiting rod (32).

8. The high-pressure cleaning equipment according to claim 7, characterized in that: A slide plate (312) is fixedly connected to the side wall of the valve sleeve (31), and the slide plate (312) is slidably engaged with the inner wall of the water inlet chamber (123); a drainage groove (311) is provided on the top surface of the valve sleeve (31) for accelerating the return water to flow into the interior of the valve sleeve (31).

9. The high-pressure cleaning equipment according to claim 8, characterized in that: The third limiting rod (33) has two ends provided with a sliding groove, and a sliding rod parallel to the third limiting rod (33) is fixed in the sliding groove; a clamping block (331) is slidably connected to the sliding rod, and a vertical shifting rod (333) is fixed to the bottom of the clamping block (331); a third spring (332) is sleeved on the sliding rod, and two ends of the third spring (332) are fixed to the bottom surface of the sliding groove and the clamping block (331); A corresponding card slot is provided on the first bottom plate (125), and the card block (331) is engaged with the card slot.

10. The high-pressure cleaning equipment according to claim 9, characterized in that: A water outlet pipe (121) is provided on the top of the water delivery housing (12), and a water inlet pipe (131) is provided on the side wall of the end sealing plate (13); the water outlet pipe (121) is connected to the water outlet cavity (124), and the water inlet pipe (131) is connected to the water inlet cavity (123).

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