Liquid outlet device, pump and cleaning machine

Abstract

The utility model relates to the technical field of cleaning tools, and provides a liquid outlet device, a pump and a cleaning machine, which comprise a base, a liquid outlet channel and a regulating valve. A liquid outlet is formed in the first end of the liquid outlet channel, a liquid supply opening is formed in the second end of the liquid outlet channel, and a first cavity communicated with the liquid outlet is formed by a cavity, close to the liquid outlet, of the liquid outlet channel. The adjusting valve is configured to maintain the pressure in the first cavity to reach the target pressure when the liquid outlet is closed, and the adjusting valve can adjust the target pressure. The included angle between the axis direction of the liquid outlet channel and the axis direction of the adjusting valve is an acute angle, so that the first end of the liquid outlet channel and the first end of the adjusting valve are arranged at intervals. The liquid outlet channel and the adjusting valve are arranged in an included angle mode, so that the connecting ends of the liquid outlet channel and the adjusting valve can be close to each other to guarantee compact structure, and the working ends of the liquid outlet channel and the adjusting valve can be spaced by a certain distance to avoid connecting and adjusting operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cleaning tool technical field, especially a kind of liquid outlet device, pump and cleaning machine. BACKGROUND

[0002] Pump is usually provided with liquid outlet device for outputting liquid, and the liquid outlet end of the pump is usually provided with liquid outlet and adjusting valve for adjusting the pressure of liquid outlet.

[0003] The adjusting valve and the liquid outlet are usually arranged reversely or side by side in the prior art.The liquid outlet is usually directed to the end of the operator, and if arranged reversely, the adjusting valve is away from the operator and the reverse arrangement increases the overall length of the liquid outlet device.If the adjusting valve and the liquid outlet are arranged side by side, the circumferential space between the adjusting valve and the liquid outlet is small, making it difficult to connect and adjust. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a liquid outlet device, pump and cleaning machine with compact structure and convenient adjustment.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a liquid outlet device, comprising:

[0006] a base;

[0007] a liquid outlet channel arranged in the base, the liquid outlet channel being provided with a first end and a second end, the first end of the liquid outlet channel being provided with a liquid outlet, and the second end of the liquid outlet channel being provided with a liquid supply port, and the side chamber of the liquid outlet channel close to the liquid outlet constituting a first cavity in communication with the liquid outlet;

[0008] an adjusting valve arranged in the base, the adjusting valve being configured to maintain the pressure in the first cavity at a target pressure when the liquid outlet is closed, and the adjusting valve being capable of adjusting the target pressure;

[0009] wherein the included angle between the axis direction of the liquid outlet channel and the axis direction of the adjusting valve is an acute angle, so that the first end of the liquid outlet channel is arranged apart from the first end of the adjusting valve.

[0010] In an optional embodiment of the utility model, the axis direction of the liquid outlet channel and the axis direction of the adjusting valve are located in a first plane.

[0011] In an optional embodiment of the utility model, the included angle between the axis direction of the liquid outlet channel and the axis direction of the adjusting valve is 15°-20°.

[0012] In an optional embodiment of the utility model, the first end of the liquid outlet channel protrudes from the projection of the regulating valve in the first direction, and the first direction is perpendicular to the axis of the liquid outlet channel.

[0013] In an optional embodiment of the utility model, the liquid outlet channel has a second cavity communicating with the liquid supply opening, and a first one-way valve is arranged between the first cavity and the second cavity.

[0014] In an optional embodiment of the utility model, the regulating valve comprises a valve core, a pressure relief cavity and an actuator driving the valve core to act, and the actuator is configured to open the valve core when the pressure in the first cavity reaches a target pressure, so that the second cavity communicates with the pressure relief cavity.

[0015] In an optional embodiment of the utility model, the actuator comprises a spring and a valve rod for pushing the valve core, a sliding seat is connected to the valve rod, and the spring is in abutting contact with the sliding seat and the base at both ends, and the adjusting knob is threadedly connected to the valve rod and abuts against the sliding seat.

[0016] In an optional embodiment of the utility model, a first hole is formed in the position corresponding to the second cavity of the liquid outlet channel, the first hole is arranged along the radial direction of the liquid outlet channel, the first hole penetrates from the second cavity to the surface of the base, and a first plug is arranged at the outer end of the first hole to form a flow channel between the second cavity and the regulating valve.

[0017] In an optional embodiment of the utility model, a second hole is formed in the position corresponding to the first cavity of the liquid outlet channel, the second hole is arranged along the radial direction of the regulating valve, the second hole penetrates from the first cavity through the regulating valve to the surface of the base, and a second plug is arranged at the outer end of the second hole to form a flow channel between the first cavity and the regulating valve.

[0018] The utility model also provides a pump, which comprises:

[0019] The pump body comprises a liquid inlet end and a liquid outlet end.

[0020] The liquid outlet device comprises a base arranged at the end of the pump body, a liquid outlet channel and a regulating valve arranged at the base, the liquid outlet channel is provided with a first end and a second end, the first end of the liquid outlet channel is provided with a liquid outlet, the second end of the liquid outlet channel is communicated with the liquid outlet end, the side cavity of the liquid outlet channel close to the liquid outlet forms a first cavity communicated with the liquid outlet, the regulating valve is configured to maintain the pressure in the first cavity to reach a target pressure when the liquid outlet is closed, and the regulating valve can adjust the target pressure, and the included angle between the axial direction of the liquid outlet channel and the axial direction of the regulating valve is an acute angle, so that the first end of the liquid outlet channel and the first end of the regulating valve are arranged at intervals.

[0021] The utility model discloses still propose a kind of cleaning machine, comprising:

[0022] Frame, walking mechanism is arranged on the frame;

[0023] Pump body, setting in the frame, the pump body includes liquid inlet end and liquid outlet end;

[0024] Liquid outlet device, including setting in the base of the pump body end portion, and the liquid outlet channel and the regulating valve of setting in the base, the liquid outlet channel is provided with a first end and a second end, the first end of the liquid outlet channel is provided with a liquid outlet, the second end of the liquid outlet channel is communicated with the liquid outlet end, the side cavity of the liquid outlet channel close to the liquid outlet forms a first cavity communicated with the liquid outlet, the regulating valve is configured to maintain the pressure in the first cavity to reach a target pressure when the liquid outlet is closed, and the regulating valve can adjust the target pressure, and the included angle between the axial direction of the liquid outlet channel and the axial direction of the regulating valve is an acute angle, so that the first end of the liquid outlet channel and the first end of the regulating valve are arranged at intervals.

[0025] The technical effect of the utility model is that the liquid outlet device, the pump and the cleaning machine are arranged in an acute angle mode, so that the connecting ends of the liquid outlet channel and the regulating valve can be adjacent to each other to ensure compact structure, and the working ends of the two can be spaced apart by a certain distance to avoid connection and adjustment operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0027] Figure 1 It is a three-dimensional structure schematic view of the liquid outlet device in an embodiment of the utility model;

[0028] Figure 2 Structure diagram of the liquid outlet device in an embodiment of the utility model;

[0029] Figure 3 Structure diagram of the liquid outlet device in an embodiment of the utility model;

[0030] Figure 4 Structure diagram of the liquid outlet device in an embodiment of the utility model;

[0031] Figure 5 Structure diagram of the liquid outlet device in an embodiment of the utility model;

[0032] Figure 6 Structure diagram of the pump in an embodiment of the utility model;

[0033] Figure 7 Structure diagram of the cleaning machine in an embodiment of the utility model.

[0034] Explanation of reference numerals; 10, base; 20, liquid outlet channel; 21, first cavity; 22, second cavity; 23, first one-way valve; 24, liquid outlet; 25, spray core; 30, adjusting valve; 31, valve core; 32, valve rod; 33, spring; 34, sliding seat; 35, adjusting knob; 36, third cavity; 37, pressure relief cavity; 38, execution cavity; 40, pump body; 41, water inlet low pressure area; 50, first hole; 51, first plug; 60, second hole; 61, second plug; 70, rack; 71, traveling mechanism; 80, liquid supply port. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail with specific examples. Those skilled in the art can easily understand other advantages and functions of the present application from the content disclosed in the specification. The present application can also be implemented or applied in other different embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the diagrams, not the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be changed arbitrarily, and the layout pattern of the components can be more complex.

[0037] High-pressure swash plate pump is a kind of hydraulic device applied to high-pressure cleaning equipment, hydraulic system and high-pressure water jet, etc., with the characteristics of high output pressure, stable flow and strong reliability. Its core principle is to drive the swash plate to rotate through the motor shaft, and drive the plunger to move quickly in the pump cavity, to realize the suction of low-pressure liquid, pressure increase and output of high-pressure liquid. This kind of pump has independent high-pressure pressure regulating valve structure, so that the output pressure is higher than that of the traditional low-pressure structure pump, and has certain pressure adjusting function, which can meet the needs of different working conditions.

[0038] The water outlet end of the high-pressure swash plate pump is usually provided with a liquid outlet channel and a high-pressure pressure regulating valve, which is used to adjust the water pressure value when the gun is fired. In the prior art, the liquid outlet channel and the regulating valve are generally arranged in the same direction and in parallel or arranged in reverse coaxial.

[0039] When arranged in parallel in the same direction, the regulating valve and the liquid outlet are arranged adjacent to each other, which causes insufficient circumferential space and makes operation and connection difficult. The too close regulating valve and liquid outlet may affect the adjustment accuracy due to vibration or pipeline arrangement problem or cause wear of the connecting parts. If the distance between the two is too far, the structure is loose, which affects the compactness and overall stability of the equipment.

[0040] When arranged in reverse, the regulating valve faces away from the operator, which increases the inconvenience of operation. Reverse arrangement can increase the overall length of the liquid outlet device, which is not conducive to the space optimization of the overall equipment. Additional space is needed to bypass or use tools for adjustment during operation, which increases the operation complexity.

[0041] To solve the above problems, as shown in Figures 1-5 The utility model provides a kind of liquid outlet device, and the liquid outlet device specifically can be pump head, and the pump head includes the base 10 connected with liquid supply device, and the liquid supply device specifically can be centrifugal pump, plunger pump, gear pump, screw pump etc. The base 10 is the core connecting component of the whole device, for realizing the stable connection with liquid supply device. And liquid outlet channel 20 and regulating valve 30 are arranged in the base 10. The liquid outlet channel 20 is the path of liquid flow, and the regulating valve 30 is used to adjust pressure.

[0042] As shown in Figure 3 The liquid outlet channel 20 is provided with first end and second end, and the first end of the liquid outlet channel 20 is provided with liquid outlet 24, which is used to connect water gun through water pipe, and spray core 25 can be arranged in liquid outlet 24. By changing the inner cavity structure of spray core 25 (such as hole diameter size, streamline design, etc.), the flow, pressure and form of sprayed liquid can be controlled.

[0043] The second end of the liquid outlet channel 20 is provided with a liquid supply port 80, which is in communication with the liquid supply device. The first end is defined as the front end of the liquid outlet channel 20. The liquid supply device provides a liquid source for the liquid outlet channel 20 through the liquid supply port 80, ensuring the continuity of liquid supply and the stability of pressure output. The side chamber of the liquid outlet channel 20 close to the liquid outlet port 24 constitutes a first cavity 21 in communication with the liquid outlet port 24.

[0044] The first end of the liquid outlet channel 20 in this application refers to the front end of the liquid outlet channel 20. The corresponding second end is the rear end of the liquid outlet channel 20.

[0045] As shown in Figure 3 The liquid outlet channel 20 is provided with a first one-way valve 23. The first cavity 21 is located between the first one-way valve 23 and the liquid outlet port 24. The first cavity 21 is a buffer area before the liquid flows to the nozzle 25.

[0046] The space between the first one-way valve 23 and the second end of the liquid outlet channel 20 constitutes a second cavity 22, which is used to receive liquid from the liquid supply device.

[0047] The first one-way valve 23 is designed to allow liquid to flow from the second cavity 22 to the first cavity 21, while preventing backflow. The arrangement of the valve ensures the unidirectionality of liquid flow, avoiding the problem of liquid backflow caused by external pressure changes. The arrangement of the first one-way valve 23 ensures that even if the second cavity 22 is depressurized, the first cavity 21 connected to the liquid outlet port 24 can still maintain pressure.

[0048] The second cavity 22 is in communication with the liquid supply device. The second cavity 22 is provided with a plurality of liquid supply ports 80 in communication with the liquid supply device. Each liquid supply port 80 is provided with a second one-way valve. These valves are distributedly designed to allow liquid to enter the second cavity 22 through multiple paths at the same time, further improving the flow and uniformity of liquid supply.

[0049] The regulating valve 30 can be a high-pressure regulating valve, a pilot pressure reducing valve, a back pressure valve, a proportional pressure control valve, etc. The regulating valve in this application is a high-pressure regulating valve.

[0050] The regulating valve 30 is configured to maintain the pressure in the first cavity 21 to reach the target pressure when the liquid outlet port 24 is closed. When the spray gun is closed, the liquid outlet port 24 in the system is closed. The high-pressure regulating valve can ensure that the pressure in the first cavity 21 does not decrease, avoiding pressure loss caused by long-term inactivation of the system.

[0051] When the spray gun is turned on again, the first cavity 21 can immediately release the stored pressure to the spray gun, ensuring that the initial spraying pressure reaches the target value. This is particularly important for equipment that requires efficient and stable spraying. The regulating valve 30 can adjust the target pressure, and users can flexibly adjust the target pressure through the setting mechanism (such as a manual knob or an automatic controller) of the valve 30 door according to actual needs, to adapt to different spraying intensities or working condition requirements.

[0052] As shown in Figures 1-5 , the second end of the regulating valve 30 is connected with the second end of the liquid outlet channel 20. As shown in Figure 3 , the regulating valve 30 includes a valve core 31 and an actuator for driving the valve core 31 to act, and the valve core 31 is a key component of the regulating valve 30, directly controlling the opening and closing of the fluid channel.

[0053] The actuator includes a spring 33 and a valve stem 32 for pushing the valve core 31, and the actuator is a core component for regulating pressure, applying control force to the valve core 31 through the elastic force of the spring 33. The pre-compression length of the spring 33 determines the dynamic response of the valve core 31 and the target pressure.

[0054] The valve stem 32 is connected with a sliding seat 34, which moves in the valve stem 32 to adjust the compression state of the spring 33. The spring 33 is in abutting engagement with the sliding seat 34 and the base 10 at both ends, and the adjusting knob 35 is threadedly connected to the valve stem 32 and abuts against the sliding seat 34. The adjusting knob 35 is threadedly connected to the valve stem 32, and the compression length of the spring 33 is changed by rotating. By controlling the pre-compression force of the spring 33, the user can accurately adjust the target pressure.

[0055] As shown in Figure 3 , the valve core 31 is configured with a third cavity 36 and a pressure relief cavity 37 on both sides, the third cavity 36 is in communication with the second cavity 22, and the pressure relief cavity 37 is in communication with the upstream of the liquid supply device. The regulating valve 30 is provided with an execution cavity 38 in communication with the first cavity 21, and the execution cavity 38 is configured to push the actuator to drive the valve core 31 to open when the pressure in the execution cavity 38 reaches the target pressure. The execution cavity 38 is in communication with the first cavity 21 for dynamically sensing the pressure of the first cavity 21. When the pressure in the execution cavity 38 rises to the set target value, it will push the actuator, thereby driving the valve core 31 to open or close.

[0056] The specific working steps of the liquid outlet device are as follows:

[0057] When the spray gun connected to the liquid outlet 24 is opened, the liquid supply device is activated to generate a high-pressure water jet. The high-pressure water flows out of the liquid supply port 80, then passes through the first one-way valve 23, the spray core 25, and the liquid outlet 24 into the spray gun and nozzle, and completes the release of the high-pressure water jet energy. At this time, the regulating valve 30 is in a sealed state under the action of the spring 33.

[0058] When the spray gun connected to the liquid outlet 24 is normally opened to the instant state of closing the gun, the liquid supply device still operates normally because the spray gun valve is closed. The water pressure in the first cavity 21 rises instantaneously at this time, and the first one-way valve 23 is closed. When the water pressure in the first cavity 21 increases to 1.2-1.3 times the normal opening pressure, the high-pressure water enters the actuator cavity 38 through the flow channel. The actuator is further compressed by the water pressure in the actuator cavity 38, the steel ball in the valve core 31 is pushed open by the valve rod 32, and the ball valve seat in the valve core 31 is separated. At this time, the pressurized water in the liquid supply device flows out of the liquid supply port 80 into the second cavity 22. The pressurized water in the second cavity 22 enters the third cavity 36 through the flow channel, and then enters the pressure relief cavity 37 through the valve core 31. The pressure relief cavity 37 is connected to the low-pressure water inlet area 41 upstream of the liquid supply device. Therefore, the liquid supply device enters the low-pressure internal circulation mode, and the water pressure in the second cavity 22 and the third cavity 36 as well as the pressure relief cavity 37 is the same. The liquid supply device is in the state of closing the gun without stopping. The low-pressure circulation mode avoids frequent shutdown or component wear during high-pressure operation. The liquid supply device in the present application can automatically switch between different working states (opening the gun and closing the gun), reducing the load of the liquid supply device.

[0059] When the spray gun connected to the liquid outlet 24 is closed to the instant state of opening the gun, the water pressure in the first cavity 21 instantaneously decreases, and the pressure in the actuator cavity 38 connected thereto also decreases. The actuator returns to the normal opening state position, and the steel ball ball valve seat is in a sealed state at this time. The water pressure in the second cavity 22 is the same as that in the first cavity 21.

[0060] As shown in Figure 3 The angle α between the axis direction of the liquid outlet channel 20 and the axis direction of the regulating valve 30 is an acute angle. By designing an acute angle, the connection end of the liquid outlet channel 20 and the regulating valve 30 can be closely arranged in space. The acute angle is set to allow the first end of the liquid outlet channel 20 and the first end of the regulating valve 30 to be arranged at a distance.

[0061] After the working ends of the regulating valve 30 and the liquid outlet channel 20 are arranged separately, the operation space is more spacious, which is convenient for users to adjust, maintain or replace components. Especially when the regulating valve 30 needs to be frequently operated, this design significantly improves the convenience. The distance between the connected components is reduced. This design effectively saves the overall space of the equipment, and is particularly suitable for compact systems. Through appropriate spacing distance, the interference between the liquid outlet channel 20 and the regulating valve 30 is effectively avoided, reducing the possibility of accidental touch or adjustment difficulty during operation.

[0062] The specific included angle a is 15°-20°, preferably 15°. Compared with a right angle or a large angle design, the included angle a of 15°-20° can effectively reduce the turning resistance of the fluid in the channel, reduce the vortex and turbulence caused by the sharp change of direction, and improve the flow stability.

[0063] As shown in Figure 3 The first hole 50 is arranged along the radial direction of the outflow channel 20, and the outer end of the first hole 50 is provided with a first plug 51 to form a flow passage between the second cavity 22 and the third cavity 36.

[0064] In this way, the first hole 50 is machined in the radial direction based on the outflow channel 20, and the plug is used to form a flow passage. Radial drilling avoids the technical difficulties of drilling complex curved surfaces, and does not require special clamps or multi-axis linkage machining equipment. The machining path is simple, and the hole machining can be quickly completed. Conventional drilling machines and numerical control machine tools can complete radial hole machining, and the equipment requirements are low, and the adaptability is wide.

[0065] As shown in Figure 3 The second hole 60 is arranged along the radial direction of the adjusting valve 30, and the outer end of the second hole 60 is provided with a second plug 61 to form a flow passage between the first cavity 21 and the execution cavity 38.

[0066] In this way, the second hole 60 is machined in the radial direction based on the adjusting valve 30, and the plug is used to form a flow passage, that is, the first hole 50 and the second hole 60 are machined based on different references. Each hole is machined based on an independent reference, avoiding the error accumulation problem when machining multiple complex holes based on the same reference. Ensure the high-precision positioning of the first hole 50 and the second hole 60 in their respective functional areas. The first hole 50 and the second hole 60 respectively connect different flow passages and cavities, and independent machining of the reference ensures the cooperation accuracy of each hole and its related cavity, reducing the risk of poor connection.

[0067] As shown in Figure 3As shown, the axis direction of the liquid outlet channel 20 and the axis direction of the regulating valve 30 are located in a first plane, and the regulating valve 30 is coaxially arranged with the regulating knob 35, and the first plane is parallel to the axis direction of the liquid supply device. The axis directions are located in the same plane, so that the design structure is simple and compact, and the overall space layout of the equipment is optimized. The axis of the regulating valve 30 and the liquid outlet channel 20 is located in the same plane, which facilitates integrated alignment during processing and assembly.

[0068] As shown in the drawings, Figures 2-5 As shown, the first end of the liquid outlet channel 20 protrudes from the projection of the regulating valve 30 in the first direction, which is perpendicular to the axis of the liquid outlet channel 20. That is, the front end of the liquid outlet channel 20 protrudes, and the front end of the liquid outlet channel 20 is an interface. The design of the protruding interface can avoid the space occupied by the regulating valve 30, and also provides more freedom for the arrangement of other surrounding components, avoiding complex space arrangement problems, and making the connection operation more direct and convenient. The operator can quickly complete the interface connection or disassembly without bypassing the regulating valve 30 or other components. The relative independence of the regulating valve 30 and the liquid outlet channel 20 is enhanced, effectively avoiding space crowding, and improving the space utilization efficiency of the overall equipment.

[0069] As shown in the drawings, Figure 6 As shown in the drawings, the utility model also proposes a pump, including pump body 40 and liquid outlet device:

[0070] The pump body 40 includes a liquid inlet end and a liquid outlet end, and the pump body 40 is a liquid supply device.

[0071] The liquid outlet device includes a base 10 arranged at the end of the pump body 40, and a liquid outlet channel 20 and a regulating valve 30 arranged on the base 10. The liquid outlet channel 20 is provided with a first end and a second end. The first end of the liquid outlet channel 20 is provided with a liquid outlet 24. The second end of the liquid outlet channel 20 is communicated with the liquid outlet end. The side chamber of the liquid outlet channel 20 close to the liquid outlet 24 constitutes a first cavity 21 communicated with the liquid outlet 24. The regulating valve 30 is configured to maintain the pressure in the first cavity 21 to reach a target pressure when the liquid outlet 24 is closed, and the regulating valve 30 can adjust the target pressure. The included angle between the axis direction of the liquid outlet channel 20 and the axis direction of the regulating valve 30 is an acute angle, so that the first end of the liquid outlet channel 20 is arranged in space with the first end of the regulating valve 30.

[0072] As shown in the drawings, Figure 7 The utility model also proposes a cleaning machine, including frame 70, pump body 40 and liquid outlet device.

[0073] The frame 70 is provided with a traveling mechanism 71. The frame 70 is also provided with a spray gun connected with the liquid outlet device through a water pipe.

[0074] The pump body 40 is arranged on the frame 70, and the pump body 40 comprises a liquid inlet end and a liquid outlet end.

[0075] The liquid outlet device comprises a base 10 arranged at the end of the pump body 40, a liquid outlet channel 20 arranged on the base 10, and a regulating valve 30 arranged on the base 10. The liquid outlet channel 20 is provided with a first end and a second end. The first end of the liquid outlet channel 20 is provided with a liquid outlet port 24. The second end of the liquid outlet channel 20 is in communication with the liquid outlet end. A side cavity of the liquid outlet channel 20 close to the liquid outlet port 24 constitutes a first cavity 21 in communication with the liquid outlet port 24. The regulating valve 30 is configured to maintain the pressure in the first cavity 21 to reach a target pressure when the liquid outlet port 24 is closed, and the regulating valve 30 can adjust the target pressure. The included angle between the axial direction of the liquid outlet channel 20 and the axial direction of the regulating valve 30 is an acute angle, so that the first end of the liquid outlet channel 20 and the first end of the regulating valve 30 are arranged in a spaced manner.

[0076] In summary, the utility model discloses a kind of liquid outlet device, pump and cleaning machine, by arranging the connecting end of liquid outlet channel 20 and regulating valve 30 in close position, substantially shorten the space occupied by both, make overall structure more compact. The working end of liquid outlet channel 20 and regulating valve 30 maintains certain spacing, ensure that connection and adjustment operation do not interfere with each other. Operating personnel can complete pipeline connection, adjust flow and other tasks in more spacious space, improve the convenience and efficiency of operation. The functional division of regulating valve 30 and liquid outlet channel 20 is clear by the design of included angle, avoid the problem of misoperation or interference caused by too close between components. The spacing design of working end reserves sufficient space for maintenance operation, and operating personnel can easily check or replace regulating valve 30 and liquid outlet channel 20 components. Avoid the cumbersome process of disassembling other components, especially suitable for industrial equipment that needs frequent maintenance.

[0077] The above embodiments are only illustrative of the principles and effects of the utility model, and are not intended to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the utility model should be covered by the claims of the utility model.

[0078] Although the present application has been described herein with reference to the particular illustrative embodiments, changes in form and detail can be made without departing from the spirit and scope of the application. Therefore, various modifications can be made to adapt a particular situation or material to the teachings of the application without departing from its central scope. The application is not limited to the specific embodiments described herein, but can include any and all embodiments within the scope of the appended claims and their equivalents. Thus, the scope of the application should be determined by the appended claims and their legal equivalents, rather than by the expressly recited limitations above.

Claims

1. A liquid outlet device, characterized in that, The application relates to a liquid outlet device, comprising: a base; a liquid outlet channel arranged on the base, the liquid outlet channel being provided with a first end and a second end, the first end of the liquid outlet channel being provided with a liquid outlet port, the second end of the liquid outlet channel being provided with a liquid supply port, and a side chamber of the liquid outlet channel close to the liquid outlet port constituting a first cavity in communication with the liquid outlet port; a regulating valve arranged on the base, the regulating valve being configured to maintain the pressure in the first cavity at a target pressure when the liquid outlet port is closed, and the regulating valve being capable of adjusting the target pressure; wherein the angle between the axial direction of the liquid outlet channel and the axial direction of the regulating valve is an acute angle, so that the first end of the liquid outlet channel is arranged in a spaced-apart manner with the first end of the regulating valve.

2. The liquid outlet device according to claim 1, characterized in that The axial direction of the liquid outlet channel and the axial direction of the regulating valve are located in a first plane.

3. The liquid outlet device according to claim 2, characterized in that The angle between the axial direction of the liquid outlet channel and the axial direction of the regulating valve is 15-20 degrees.

4. The liquid outlet device according to claim 1, characterized in that, The first end of the liquid outlet channel protrudes from the projection of the regulating valve in a first direction, and the first direction is perpendicular to the axis of the liquid outlet channel.

5. The liquid outlet device according to claim 1, wherein The liquid outlet channel has a second cavity in communication with the liquid supply port, and a first one-way valve is arranged between the first cavity and the second cavity.

6. The liquid outlet device according to claim 5, characterized in that The regulating valve comprises a valve core, a pressure relief cavity and an actuator for driving the valve core to act, the actuator being configured to open the valve core when the pressure in the first cavity reaches the target pressure, so that the second cavity is in communication with the pressure relief cavity.

7. The liquid outlet device according to claim 6, characterized in that The actuator comprises a spring and a valve rod for pushing the valve core, a sliding seat is connected to the valve rod, the spring is in abutting engagement with the sliding seat and the base at two ends respectively, and a regulating knob is in threaded connection with the valve rod and in abutting engagement with the sliding seat.

8. The liquid outlet device according to claim 6, characterized in that A first hole is arranged at the position corresponding to the second cavity of the second end of the liquid outlet channel, the first hole is arranged along the radial direction of the liquid outlet channel, the first hole penetrates from the second cavity to the surface of the base, and a first plug is arranged at the outer end of the first hole to constitute a flow channel between the second cavity and the regulating valve.

9. The liquid outlet device according to claim 6, characterized in that A second hole is arranged at the position corresponding to the first cavity of the liquid outlet channel, the second hole is arranged along the radial direction of the regulating valve, the second hole penetrates from the first cavity to the surface of the base through the regulating valve, and a second plug is arranged at the outer end of the second hole to constitute a flow channel between the first cavity and the regulating valve.

10. A pump characterized by The application also relates to a pump, comprising: a pump body comprising a liquid inlet end and a liquid outlet end; The liquid outlet device comprises a base arranged at the end of the pump body, and a liquid outlet channel and a regulating valve arranged at the base. The liquid outlet channel is provided with a first end and a second end. The first end of the liquid outlet channel is provided with a liquid outlet port. The second end of the liquid outlet channel is in communication with the liquid outlet end. The side chamber of the liquid outlet channel close to the liquid outlet port constitutes a first cavity in communication with the liquid outlet port. The regulating valve is configured to maintain the pressure in the first cavity to reach a target pressure when the liquid outlet port is closed, and the regulating valve can adjust the target pressure. The included angle between the axis direction of the liquid outlet channel and the axis direction of the regulating valve is an acute angle, so that the first end of the liquid outlet channel is arranged apart from the first end of the regulating valve.

11. A cleaning machine characterized by, Comprise: A rack, wherein a walking mechanism is arranged on the rack; A pump body arranged on the rack, wherein the pump body comprises a liquid inlet end and a liquid outlet end; A liquid outlet device comprising a base arranged at the end of the pump body, and a liquid outlet channel and a regulating valve arranged at the base. The liquid outlet channel is provided with a first end and a second end. The first end of the liquid outlet channel is provided with a liquid outlet port. The second end of the liquid outlet channel is in communication with the liquid outlet end. The side chamber of the liquid outlet channel close to the liquid outlet port constitutes a first cavity in communication with the liquid outlet port. The regulating valve is configured to maintain the pressure in the first cavity to reach a target pressure when the liquid outlet port is closed, and the regulating valve can adjust the target pressure. The included angle between the axis direction of the liquid outlet channel and the axis direction of the regulating valve is an acute angle, so that the first end of the liquid outlet channel is arranged apart from the first end of the regulating valve.

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