阅读说明：本技术 高压清洗机 (High pressure cleaning machine ) 是由 查霞红 赵凤丽 高彬彬 李敏行 于 2019-03-07 设计创作，主要内容包括：本发明提出一种高压清洗机,其包括：手持清洗部,手持清洗部包括壳体、水泵和喷头,水泵设置在壳体内,喷头连接于壳体,水泵能够使进入水泵的液体在加压后由喷头喷出；基座,基座设置有接收部,接收部用于接收手持清洗部并且使手持清洗部和基座能够拆卸地连接在一起,高压清洗机能够在第一工作模式和第二工作模式之间切换,水泵在第一工作模式下水泵的最大输出功率小于水泵在第二工作模式下水泵的最大输出功率。通过采用上述技术方案,本发明的高压清洗机可以提供两种工作模式,在不改变手持清洗部的原有结构的情况下,通过将手持清洗部和基座连接在一起可以提供更高的喷水压力,同时保证安全。(The invention provides a high-pressure cleaning machine, which comprises: the handheld cleaning part comprises a shell, a water pump and a spray head, the water pump is arranged in the shell, the spray head is connected with the shell, and liquid entering the water pump can be sprayed out by the spray head after being pressurized by the water pump; the high-pressure cleaning machine comprises a base, wherein the base is provided with a receiving part, the receiving part is used for receiving the handheld cleaning part and enabling the handheld cleaning part and the base to be detachably connected together, the high-pressure cleaning machine can be switched between a first working mode and a second working mode, and the maximum output power of the water pump in the first working mode is smaller than that of the water pump in the second working mode. By adopting the technical scheme, the high-pressure cleaning machine can provide two working modes, can provide higher water spraying pressure by connecting the handheld cleaning part and the base together without changing the original structure of the handheld cleaning part, and simultaneously ensures safety.)

1. A high pressure washer, characterized in that the high pressure washer comprises:

the handheld cleaning part comprises a shell, a water pump and a spray head, the water pump is arranged in the shell, the spray head is connected with the shell, and the water pump can enable liquid entering the water pump to be sprayed out by the spray head after being pressurized;

the base is provided with a receiving part, the receiving part is used for receiving the handheld cleaning part and enabling the handheld cleaning part and the base to be detachably connected together, the high-pressure cleaning machine can be switched between a first working mode and a second working mode, when the handheld cleaning part is connected with the base, the high-pressure cleaning machine is in the second working mode, and the maximum output power of the water pump in the first working mode is smaller than the maximum output power of the water pump in the second working mode.

2. The pressure washer according to claim 1, further comprising an identification portion that determines whether the hand-held washing portion is connected to the base to enable the pressure washer to switch between the first mode of operation and the second mode of operation.

3. The pressure washer of claim 2, wherein the pressure washer includes a control portion, the identification portion sends a signal to the control portion when the hand-held cleaning portion and the base are coupled together, and the pump adjusts the output power to place the pressure washer in the second mode of operation after the control portion receives the signal.

4. The high-pressure washer according to claim 1, wherein in the first operating mode, a maximum water spray pressure of the high-pressure washer is less than 2.5 MPa; and in the second working mode, the maximum water spraying pressure of the high-pressure cleaning machine is more than 2.5 MPa.

5. The pressure washer according to claim 1, wherein the hand-held cleaning portion is provided with a hand-held portion so as to facilitate a gripping operation of the hand-held cleaning portion, the receiving portion being capable of receiving at least the nozzle portion of the hand-held cleaning portion.

6. The pressure washer according to claim 1, wherein a passage for liquid communication is provided inside the base, the passage communicating with the receiving portion.

7. The pressure washer of claim 1, wherein the base includes a grip portion, a pushrod, and a base body, the grip portion being connected to one end of the pushrod and the base body being connected to the other end of the pushrod.

8. The pressure washer according to claim 7, wherein the receiving portion is provided to the base body so that the hand-held washing portion can be connected to the base body.

9. The pressure washer according to claim 7, wherein the receiving portion is provided to the grip portion so that the hand-held cleaning portion can be connected to the grip portion.

10. The pressure washer of claim 7, wherein the base body is pivotally connected to the pushrod.

Technical Field

The invention relates to the field of high-pressure cleaning, in particular to a high-pressure cleaning machine.

Background

When the water spraying pressure of the handheld high-pressure cleaning machine exceeds 2.5MPa, the waterproof grade of the handheld high-pressure cleaning machine needs to reach the IPX7 grade, and the safety standard can be met. When the pressure of water spraying is lower than 2.5MPa, the waterproof grade of the handheld high-pressure cleaning machine only needs to reach the IPX5 grade.

If need reach IPX7 grade, the manufacturing degree of difficulty of hand-held type high pressure cleaner is great, need be for the waterproof shell of battery package installation in order to prevent leaking the emergence short circuit, and the installation waterproof shell can make hand-held type high pressure cleaner's structure complicated, the cost improves and the simple operation nature descends, therefore most hand-held type high pressure cleaner's water spray pressure is less than 2.5 MPa.

Disclosure of Invention

In view of the above problems in the prior art, the present invention is directed to a high pressure washer which can provide a large water spray pressure without increasing a waterproof grade.

The invention provides a high-pressure cleaning machine, which comprises:

the handheld cleaning part comprises a shell, a water pump and a spray head, the water pump is arranged in the shell, the spray head is connected with the shell, and the water pump can enable liquid entering the water pump to be sprayed out by the spray head after being pressurized;

the base is provided with a receiving part, the receiving part is used for receiving the handheld cleaning part and enabling the handheld cleaning part and the base to be detachably connected together, the high-pressure cleaning machine can be switched between a first working mode and a second working mode, when the handheld cleaning part is connected with the base, the high-pressure cleaning machine is in the second working mode, and the maximum output power of the water pump in the first working mode is smaller than that of the water pump in the second working mode.

Preferably, the high pressure washing machine further includes an identification portion that determines whether the hand-held washing portion is connected to the base so that the high pressure washing machine can be switched between the first operation mode and the second operation mode.

Preferably, the high pressure cleaner comprises a control part, when the handheld cleaning part and the base are connected together, the identification part sends a signal to the control part, and after receiving the signal, the control part adjusts the water pump to adjust the output power to enable the high pressure cleaner to be in the second working mode.

Preferably, in the first working mode, the maximum water spraying pressure of the high-pressure cleaning machine is less than 2.5 MPa; and in the second working mode, the maximum water spraying pressure of the high-pressure cleaning machine is more than 2.5 MPa.

Preferably, the handheld cleaning part is provided with a handheld part so as to be convenient to hold and operate the handheld cleaning part, and the receiving part can receive at least the nozzle part of the handheld cleaning part.

Preferably, a passage for liquid to flow through is provided inside the base, and the passage communicates with the receiving portion.

Preferably, the base includes a holding portion, a push rod, and a base body, the holding portion is connected to one end of the push rod, and the base body is connected to the other end of the push rod.

Preferably, the receiving portion is provided to the base body so that the hand-held cleaning portion can be connected to the base body.

Preferably, the receiving portion is disposed on the holding portion, so that the handheld cleaning portion can be connected to the holding portion.

Preferably, the base body is pivotably connected to the push rod.

By adopting the technical scheme, the high-pressure cleaning machine can provide two working modes, can provide higher water spraying pressure by connecting the handheld cleaning part and the base together without changing the original structure of the handheld cleaning part, and simultaneously ensures safety.

Drawings

Fig. 1 shows a schematic structural view of a high-pressure washer according to a first embodiment of the invention.

Fig. 2 shows a schematic structural view of a hand-held cleaning part of a high-pressure cleaning machine according to a first embodiment of the invention.

Fig. 3 shows a schematic structural view of a high-pressure washer according to a second embodiment of the invention.

Description of the reference numerals

1 hand-held cleaning part 11 casing 12 battery 13 water pump 14 nozzle 15 hand-held part

2 base 21 grip 22 push rod 23 base body.

Detailed Description

Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the detailed description is intended only to teach one skilled in the art how to practice the invention, and is not intended to be exhaustive or to limit the scope of the invention.

First embodiment

As shown in fig. 1 and 2, the present invention proposes a high pressure washer including a hand-held washing part 1 and a base 2. The hand-held cleaning part 1 and the base 2 are detachably connected together.

The hand-held cleaning part 1 may be a hand-held high-pressure cleaner, which includes a housing 11, a battery 12, a water pump 13, and a spray head 14. The spray head 14 is connected to the shell 11, the battery 12 and the water pump 13 are both arranged in the shell 11, and the water pump 13 is connected with the spray head 14. The water pump 13 is driven to work by the power supplied by the battery 12, so that the liquid entering the water pump 13 from an external water source or a water storage container can be sprayed out through the spray head 14, and the high-pressure liquid sprayed out from the spray head 14 can be used for cleaning the surface of an object.

The hand-held cleaning part 1 is further provided with a hand-held part 15 for hand-held operation, and the hand-held part 15 can be connected to the housing 11, thereby facilitating the hand-held cleaning operation by the user.

It is understood that the hand-held washing part 1 can be held by a user for a washing operation. When the high-pressure liquid formed by the water pump 13 exceeds a certain pressure level, for example, exceeds 2.5MPa, the handheld cleaning part 1 needs to reach the waterproof level of IPX7 to meet the safety standard. Ensuring that liquid does not flow to electrical components, such as the battery 12, causing a risk of short circuits and the like. However, in the case where the high-pressure liquid formed by the water pump 13 does not reach a certain pressure level, for example, 2.5MPa, the hand-held washing part 1 only needs to reach a waterproof level of IPX5 to satisfy the safety standard. Ensuring that liquid does not flow to electrical components, such as the battery 12, causing a risk of short circuits and the like.

It will be appreciated that the higher water resistance rating of IPX7 achieved by the handheld cleaning portion 1 may result in a more complex structure, higher manufacturing cost, heavier weight and/or larger size of the handheld cleaning portion 1 than the lower water resistance rating of IPX5 achieved by the handheld cleaning portion 1, which may be disadvantageous for ease of operation.

In the present embodiment, the handheld cleaning unit 1 can achieve the waterproof level of IPX5, and when the handheld cleaning unit 1 is handled by hand, the output of the water pump 13 needs to be limited so that the high-pressure liquid output by the water pump 13 does not exceed 2.5 MPa.

The handheld cleaning part 1 is provided with a first recognition part for detecting whether the handheld cleaning part 1 and the base 2 are connected together, and the first recognition part may be a hall sensor or the like.

The base 2 includes a grip 21, a push rod 22, and a base body 23, the push rod 22 may be an elongated rod, the grip 21 is fixedly connected to one end of the push rod 22, and the base body 23 is pivotably connected to the other end of the push rod 22. Further, the push rod 22 and the base body 23 are connected by a connecting portion. The connecting portion and the push rod 22 and the connecting portion and the base body 23 are pivotally connected by the rotating shafts, and the axes of the two rotating shafts are perpendicular, so that the push rod 22 can pivot in two perpendicular directions relative to the base body 24, and the angle of the push rod 22 can be flexibly adjusted relative to the base body 24.

The base body 23 is provided with a receiving portion for receiving the hand-held cleaning portion 1, and in particular, the spray head 14 of the hand-held cleaning portion 1 can be inserted into the receiving portion, thereby connecting the hand-held cleaning portion 1 and the base 2 together. The interior of the base body 23 may be provided with a passage that communicates with the receiving portion so that the high-pressure liquid ejected from the ejection head 14 can be ejected from the base body 23 after passing through the passage.

The grip portion 21 may include a ring portion, and the base body 23 may be pushed to move by gripping the grip portion 21 and pushing the push rod 22.

The base body 23 is provided with a second recognition portion which can detect whether the hand-held cleaning portion 1 and the base 2 are connected together or not through the cooperation of the first recognition portion and the second recognition portion, and the second recognition portion can be a hall sensor or the like.

It will be appreciated that when the hand-held cleaning portion 1 and the base 2 are coupled together, a user can clean by grasping the grip portion 21 and pushing the push rod 22 to move the base body 23. Since the user in this case does not need to directly touch the hand-held cleaning portion 1, the pressure of the high-pressure liquid formed by the water pump 13 may exceed a certain pressure level (2.5MPa), for example up to 5MPa, at the level of the water resistance of the IPX5, which also meets the safety standards.

The high-pressure cleaning machine has two working modes, wherein the first working mode is a handheld mode, and the second working mode is a hand-push mode.

In the first operation mode, the user can directly hold the hand-held cleaning part 1, pressurize the liquid by the water pump 13, and spray the high-pressure liquid from the spray head 14 for cleaning. The water pump 13 operates in a low pressure state with low output power, so that the pressure of the liquid output by the water pump 13 does not exceed a certain pressure level, for example, 2.5 MPa.

In the second working mode, the handheld cleaning part 1 and the base 2 are connected together, and the connection of the handheld cleaning part 1 and the base 2 can be identified through the matching of the first identification part and the second identification part. At this time, the water pump 13 may be automatically or manually switched to a high pressure state with high output power, so that the pressure of the liquid output by the water pump 13 may exceed a certain pressure level, for example, 2.5 MPa.

The water pump 13 can be automatically switched to a high-pressure state with high output power, when the first identification part and the second identification part are matched to identify that the handheld cleaning part 1 is connected with the base 2, the identification part sends a control signal to the control part, and the control part adjusts the maximum output power of the water pump 13 after receiving the signal, so that the maximum output power of the water pump 13 is adjusted to be in a high-pressure state under a second working mode.

In the second operation mode, the user can hold the holding portion 21 of the base 2 to push the base body 23 to move, so that the high pressure cleaning machine performs the cleaning operation in the second operation mode. Under the same waterproof grade, the liquid sprayed out when the water pump 13 is in a high-pressure state can be higher than the liquid sprayed out when the water pump 13 is in a low-pressure state, so that the cleaning effect is better.

In the first operating mode, the high-pressure washer may be restricted by the mechanical structure and/or the control system, so that the water pump 13 is only in the low-pressure state and cannot be switched to the high-pressure state.

It can be understood that the low pressure state means that the output power of the water pump 13 does not exceed a certain limit, so that the pressure of the liquid output by the water pump 13 does not exceed a certain pressure level, and the low pressure state may also have a plurality of adjustable gears. For example, different stages may be selected in the low pressure state so that the pressure of the liquid output from the water pump 13 is 1MPa, 1.5MPa, or 2 MPa. The high-pressure state is that the output power of the water pump 13 exceeds a certain limit, so that the pressure of the liquid output by the water pump 13 exceeds a certain pressure level, and the high-pressure state can also have a plurality of adjustable gears. For example, different stages may be selected in the high pressure state so that the pressure of the liquid output from the water pump 13 is 3MPa, 3.5MPa, or 4 MPa.

Second embodiment

The overall structure of the high pressure washer according to the second embodiment of the present invention is the same as that of the first embodiment. In the present embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in fig. 3, the present invention proposes a high pressure washer including a hand-held washing part 1 and a base 2. The hand-held cleaning part 1 and the base 2 are detachably connected together.

The base 2 includes a grip 21, a push rod 22, and a base body 23, the push rod 22 may be an elongated rod, the grip 21 is fixedly connected to one end of the push rod 22, and the base body 23 is pivotably connected to the other end of the push rod 22. The grip portion 21 is provided with a receiving portion for receiving the hand-held cleaning portion 1, and specifically, the spray head 14 of the hand-held cleaning portion 1 can be inserted into the receiving portion, thereby connecting the hand-held cleaning portion 1 and the base 2 together. The interior of the grip portion 21, the push rod 22 and the base body 23 may be provided with a passage which communicates with the receiving portion, so that the high-pressure liquid ejected from the ejection head 14 may pass through the passage and then be ejected from the base body 23.

Although the specific technical solutions of the present invention are explained in detail in the above specific embodiments, it should be further explained that:

(1) in the above embodiment, the hand-held washing part 1 includes the battery 12, however, the present invention is not limited thereto, and the hand-held washing part 1 may also be supplied with power by connecting a power cord.

(2) In the above embodiment, the hand-held cleaning unit 1 is provided with the first recognition unit, and the base 2 is provided with the second recognition unit. However, the invention is not limited thereto, and the base 2 need not be provided with a second identification, for example the first identification may be contact-type, which is triggered when the handheld cleaning portion 1 and the base 2 are connected together.