Water stop structure, water outlet device and cleaning robot

Abstract

The utility model discloses a water stop structure, a water outlet device and a cleaning robot. The water stop structure comprises a flow guide pipe, a nozzle and a water pump, the two ends of the flow guide pipe are communicated with the nozzle and the water pump respectively, and the water pump is used for driving water flow to flow through the flow guide pipe and the nozzle in sequence to be sprayed out. The water stop structure further comprises an electromagnetic valve and a check valve which are arranged on the flow guide pipe, the check valve is arranged close to the nozzle, the electromagnetic valve is arranged between the check valve and the water pump, the electromagnetic valve is in communication connection with the water pump, and when the water pump is closed, the electromagnetic valve is closed. According to the water stopping structure, the electromagnetic valve and the check valve are arranged so that the water dripping phenomenon at the nozzle can be rapidly restrained, the cleaning effect is prevented from being affected by water dripping, and the water resource utilization rate can be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning technical field especially, relate to a water stop structure, water outlet device and cleaning robot. BACKGROUND

[0002] High pressure water cleaning technology is an efficient, environmental protection cleaning method, is widely used in industry, building, ship etc. field. The basic principle of this technology is to use high pressure water pump to pressurize water, then flow to the nozzle through the flow guide pipe and spray out, form high speed water flow. This high speed water flow has strong impact and cutting ability, can effectively remove various stubborn stains, rust, paint and other attachments.

[0003] However, the current cleaning device stops working after the high pressure water pump, because the flow guide pipe still exists residual water, this will lead to the nozzle place still continues to drip water, this will not only influence the cleaning effect, but also waste water resources, sometimes even can produce secondary pollution. INVENTION CONTENTS

[0004] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a water stop structure, which can quickly suppress the dripping phenomenon at the nozzle by setting an electromagnetic valve and a check valve, avoid the influence of dripping on the cleaning effect, and improve the utilization rate of water resources.

[0005] The utility model further provides a water outlet device with the above-mentioned water stop structure.

[0006] The utility model further provides a cleaning robot with the above-mentioned water outlet device.

[0007] According to the water stop structure of the first aspect embodiment of the utility model, the flow guide pipe, the nozzle and the water pump are communicated, the water pump is used to drive water flow to flow through the flow guide pipe and the nozzle in turn and then spray out.

[0008] Among them, the water stop structure further includes an electromagnetic valve and a check valve arranged on the flow guide pipe, the check valve is arranged close to the nozzle, the electromagnetic valve is arranged between the check valve and the water pump, the electromagnetic valve is in communication connection with the water pump, and the electromagnetic valve is closed when the water pump is closed.

[0009] According to the water stop structure of the utility model embodiment, at least has following beneficial effect:

[0010] By setting the check valve and the electromagnetic valve, and making the electromagnetic valve between the check valve and the high-pressure water pump, when the high-pressure water pump is closed, the electromagnetic valve is closed synchronously, so that the electromagnetic valve can quickly cut off the water flow upstream of the electromagnetic valve, and reduce the water pressure downstream, so that the check valve can quickly respond and close, greatly reducing the amount of water flow escaping after the high-pressure water pump stops working, and more quickly inhibiting the dripping phenomenon at the nozzle, when the water stopping structure of the application is applied to the high-pressure water cleaning technology, the dripping can be avoided to affect the cleaning effect, and the utilization rate of water resources is improved.

[0011] According to some embodiments of the utility model, the length of the flow guide pipe connecting the water pump and the electromagnetic valve is L1, and the length of the flow guide pipe connecting the electromagnetic valve and the check valve is L2, L1 is greater than L2.

[0012] According to some embodiments of the utility model, the check valve comprises a valve and a valve body, the valve body is communicated with the flow guide pipe and is provided with a pipeline for the water flow, and the valve is movably connected with the valve body, and the valve is configured to close the pipeline when the difference between the upstream water pressure and the downstream water pressure of the check valve is less than a set value.

[0013] According to some embodiments of the utility model, the nozzle has a water outlet hole communicated with the flow guide pipe, and when the pressure of the flow guide pipe connecting the nozzle and the check valve is less than the pressure required for the water flow to pass through the water outlet hole, the residual water flow is accumulated in the flow guide pipe between the nozzle and the check valve.

[0014] The water outlet device according to the second aspect of the utility model comprises the water stopping structure according to any one of the above embodiments.

[0015] The cleaning robot according to the third aspect of the utility model comprises the water outlet device according to any one of the above embodiments.

[0016] According to some embodiments of the utility model, the cleaning robot comprises a recycling structure, the recycling structure comprises a cleaning cover body, the cleaning cover body defines a recycling cavity and a first opening communicated with the recycling cavity, and the nozzle of the water stopping structure is fixedly connected to the cavity wall of the recycling cavity, and the cleaning cover body is configured to be capable of being arranged on a target wall surface to receive sewage when the nozzle washes the target wall surface.

[0017] According to some embodiments of the utility model, the recycling structure comprises at least one recycling member arranged in the recycling cavity, the recycling member comprises a main body portion, the main body portion is provided with a second opening communicated with the recycling cavity, and the recycling member further comprises a filtering portion arranged at the second opening, so that the sewage passes through the filtering portion and enters the second opening.

[0018] According to some embodiments of the utility model, along the thickness direction of the cleaning cover body, the cleaning cover body is provided with a plurality of mounting hole positions at intervals, the recycling structure further includes an adapter provided outside the recycling cavity, the adapter is connected with the recycling piece, and the adapter can be selectively connected with the mounting hole position to adjust the position of the recycling piece in the recycling cavity.

[0019] According to some embodiments of the utility model, the cleaning robot further includes a driving structure connected with the cleaning cover body, used for driving the cleaning cover body to be arranged on the target wall surface and making the cleaning cover body abut against the target wall surface.

[0020] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further explained in combination with the drawings and embodiments, in which:

[0022] Figure 1 It is the schematic view of water stop structure of the utility model embodiment;

[0023] Figure 2 It is the structure schematic view that water stop structure of the utility model embodiment is applied in cleaning robot;

[0024] Figure 3 It is Figure 2 The explosion schematic view of cleaning robot shown in the figure;

[0025] Figure 4 It is the explosion schematic view of recycling piece of the utility model embodiment.

[0026] REFERENCE SIGNS:

[0027] Water stop structure 10;

[0028] Flow guide pipe 100;Solenoid valve 110;Check valve 120;

[0029] Nozzle 200;

[0030] Water pump 300;

[0031] Cleaning cover body 400;Mounting hole position 410;Roller 420;Guide slot 430;

[0032] Recycling piece 500;Recycling cavity 501;Main body part 510;Second opening 520;Filtering part 530;Brush 531;Sponge 532;Connecting part 540;Liquid guide pipe 550;

[0033] Adapter 600;

[0034] mounting rack 700; DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation to the present application.

[0036] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation to the present application.

[0037] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0038] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0039] In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0040] At present, the cleaning device will continue to drip water at the nozzle after the high-pressure water pump stops working due to the residual water in the flow guide pipe, which will not only affect the cleaning effect, but also waste water resources, and sometimes even cause secondary pollution.

[0041] To address the aforementioned problems, the first aspect of this application proposes a water-stopping structure 10, as shown in the reference... Figure 1 As shown, the water-stopping structure 10 includes a guide pipe 100, a nozzle 200, and a water pump 300. The two ends of the guide pipe 100 are connected to the nozzle 200 and the water pump 300, respectively. The water pump 300 is a high-pressure water pump, capable of pressurizing water and driving it to flow through the guide pipe 100 before being rapidly ejected from the nozzle 200 to form a high-speed water flow. This high-speed water flow has powerful impact and cutting capabilities, effectively removing various stubborn stains, rust, paint, and other deposits. High-pressure water cleaning technology is widely used in industries such as manufacturing, construction, and shipbuilding.

[0042] To prevent water dripping from the nozzle 200 after the water pump 300 stops working, the water-stopping structure 10 of this application is also equipped with a solenoid valve 110 and a check valve 120. It can be understood that the solenoid valve 110 and the check valve 120 are respectively installed on the guide pipe 100 to control the opening and closing of the guide pipe 100. The check valve 120 is located near the nozzle 200, and the solenoid valve 110 is located between the check valve 120 and the water pump 300, and is also located near the check valve 120.

[0043] The solenoid valve 110 is controlled to open or close via an electrical signal. Specifically, the solenoid valve 110 is communicatively connected to the water pump 300. When the water pump 300 is closed, the solenoid valve 110 also closes synchronously, thus cutting off the water flow upstream of the solenoid valve 110. When the water pump 300 is turned on, the solenoid valve 110 also opens synchronously, allowing the water flow upstream of the solenoid valve 110 to pass through it. It should be noted that the synchronous start and stop of the solenoid valve 110 and the water pump 300 can be achieved in several ways. For example, the solenoid valve 110 and the water pump 300 can be communicatively connected to the same circuit board, thus being controlled to open or close synchronously; or, the control circuits of the solenoid valve 110 and the water pump 300 can be connected in series. When the circuit is open, both the solenoid valve 110 and the water pump 300 are in the closed state; when the circuit is open, both the solenoid valve 110 and the water pump 300 are in the open state.

[0044] The check valve 120 automatically opens or closes based on the pressure difference between the upstream and downstream water sources. When the pressure difference between the upstream and downstream water sources of the check valve 120 is greater than a set value, the check valve 120 opens, allowing water to flow through it. When the pressure difference between the upstream and downstream water sources of the check valve 120 is less than the set value, the check valve 120 closes, stopping the water flow.

[0045] In the related art, the check valve 120 is not arranged on the flow guide pipe 100, so that when the high-pressure water pump 300 stops working, the water flow in the flow guide pipe 100 downstream of the high-pressure water pump 300 will gradually drip from the nozzle 200 under the action of gravity. Alternatively, the check valve 120 is arranged at the end of the flow guide pipe 100, but because the distance between the check valve 120 and the high-pressure water pump 300 is too far, when the high-pressure water pump 300 stops working, the water pressure drop trend is transmitted to the check valve 120 after a period of time, and the pressure difference at the check valve 120 is still large during the period of time, so that the check valve 120 is forced to remain in an open state, causing water flow to still escape from the nozzle 200, and the water flow cannot be stopped in time.

[0046] The water stopping structure 10 of the present application sets the check valve 120 and the electromagnetic valve 110, and the electromagnetic valve 110 is located between the check valve 120 and the high-pressure water pump 300, so that when the high-pressure water pump 300 is closed, the electromagnetic valve 110 is synchronously closed, so that the electromagnetic valve 110 can quickly cut off the water flow upstream of the electromagnetic valve 110 and reduce the water pressure downstream of the electromagnetic valve 110, so that the check valve 120 can quickly respond and close, greatly reducing the amount of water flow escaping after the high-pressure water pump 300 stops working, and more quickly suppressing the dripping phenomenon at the nozzle 200. When the water stopping structure 10 of the present application is applied to high-pressure water cleaning technology, the dripping phenomenon can be avoided to affect the cleaning effect, and the utilization rate of water resources is improved.

[0047] In some embodiments, the length of the flow guide pipe 100 connecting the water pump 300 and the electromagnetic valve 110 is L1, and the length of the flow guide pipe 100 connecting the electromagnetic valve 110 and the check valve 120 is L2, wherein L1 is greater than L2. That is, the distance from the electromagnetic valve 110 to the check valve 120 is less than the distance from the electromagnetic valve 110 to the water pump 300, so that the water path between the check valve 120 and the electromagnetic valve 110 is short, thereby improving the speed of the check valve 120 in response to closing.

[0048] In some embodiments, the check valve 120 comprises a valve and a valve body (not shown in the figure), the valve body is in communication with the flow guide pipe 100, and a pipeline for water flow is arranged on the valve body, and the valve is movably connected with the valve body. The valve is switched to an open or closed state under the influence of the water pressure difference between the upstream water pressure and the downstream water pressure of the check valve 120. When the water pressure difference between the upstream and downstream of the check valve 120 is less than a set value, the valve is closed, that is, when the electromagnetic valve 110 is closed, the water flow upstream of the electromagnetic valve 110 is cut off, and the water flow downstream of the electromagnetic valve 110 still flows towards the check valve 120 under the action of inertia. As the water volume between the electromagnetic valve 110 and the check valve 120 gradually decreases, the water pressure gradually decreases, and when the water pressure decreases to a certain extent, the water pressure difference between the upstream and downstream of the check valve 120 is less than the set value, so that the valve is closed. Similarly, when the electromagnetic valve 110 is opened, the water volume between the electromagnetic valve 110 and the check valve 120 increases, and the water pressure increases, forcing the valve to open. It can be understood that the valve body can be a diaphragm that realizes the opening and closing of the valve by elastic deformation; or the valve body can also be a rotating member with a spring that can be compressed to open under a large pressure difference and reset to close the valve under a small pressure difference; the valve body and the valve can also be other structures, which will not be described one by one here.

[0049] In some embodiments, the nozzle 200 has a water outlet hole in communication with the flow guide pipe 100. It should be noted that in order to ensure that the water flow has a high speed when it is ejected from the water outlet hole, the diameter of the water outlet hole is small. Under the action of surface tension, the water flow needs a certain pressure to pass through the small water outlet hole. After the check valve 120 is closed, the water flow in the flow guide pipe 100 between the check valve 120 and the nozzle 200 will escape under the action of inertia, and then there is no new water flow to supplement, so that the flow guide pipe 100 between the check valve 120 and the nozzle 200 forms a low-pressure environment. When the pressure of the flow guide pipe 100 communicating the nozzle 200 and the check valve 120 is less than the pressure required by the water flow passing through the water outlet hole, the residual water flow cannot pass through the water outlet hole, so as to be blocked in the flow guide pipe 100 between the nozzle 200 and the check valve 120, thereby avoiding the phenomenon of dripping water of the nozzle 200.

[0050] The second aspect embodiment of the present application proposes a water outlet device comprising the water stopping structure 10 mentioned in any of the above embodiments. It can be understood that the water outlet device can be applied to the fields of faucets, shower heads and the like, and can also be applied to the field of cleaning robots and the like, and can have good water stopping effect without affecting the jetting effect of the nozzle 200, thereby saving water resources.

[0051] As Figure 2 and Figure 3As shown, the third aspect of the present application proposes a cleaning robot, which comprises the water outlet device mentioned in the above embodiments or the water stopping structure mentioned in the above embodiments. The cleaning robot can be applied to the cleaning work of large equipment such as wind towers and ships. In order to avoid the pollution of the environment by the cleaning agent or the sewage after cleaning, the cleaning robot further comprises a recycling structure, which comprises a cleaning cover 400, as shown in Figure 2 and Figure 3 As shown, the cleaning cover 400 is a thin shell structure, and the recycling cavity 501 and the first opening communicating with the recycling cavity 501 are defined in the cleaning cover 400. The nozzle 200 of the water stopping structure 10 is fixedly connected to the cavity wall of the recycling cavity 501. When the cleaning robot performs the cleaning action, the first opening of the cleaning cover 400 is aligned with the target wall surface, and the edge of the first opening is abutted with the target wall surface, so that the cleaning cover 400 is arranged on the target wall surface, and then the nozzle 200 sprays high-speed water flow to flush the target wall surface, and the sewage is collected by the cleaning cover 400 to be recycled.

[0052] Further, in order to timely discharge the sewage in the recycling cavity 501, so that the cleaning robot can perform more durable cleaning work, the recycling structure further comprises at least one recycling member 500 arranged in the recycling cavity 501, as shown in Figure 2 and Figure 4 In the embodiment shown, one recycling member 500 is arranged on each opposite side of the recycling structure. The recycling member 500 comprises a main body 510, the main body 510 is provided with a second opening 520 communicating with the recycling cavity 501, the main body 510 is in a triangular shape, and the inner diameter of the main body 510 gradually decreases in the direction away from the second opening 520, so that the collected water flow is gradually concentrated, and the main body 510 is further connected with a liquid guide pipe 550, the liquid guide pipe 550 is connected to the small end of the main body 510, so as to guide the collected water flow out.

[0053] It can be understood that the end of the liquid guide pipe 550 away from the main body 510 can be connected with a negative pressure source, and the sewage can be sucked by the negative pressure, so as to guide the sewage to flow towards the second opening 520.

[0054] In order to avoid the cleaning residues on the target wall surface from blocking the liquid guide pipe 550, the recycling member 500 further comprises a filter part 530, the filter part 530 is arranged at the second opening 520, so that the sewage in the recycling cavity 501 passes through the filter part 530 to enter the second opening 520. The filter part 530 can be a brush 531 as shown in Figure 4 which is arranged on the path of the sewage flowing to the second opening 520, which can play a filtering role on the one hand, and can also disturb the water droplets attached to the target wall surface on the other hand, thereby improving the sewage recycling rate. The filter part 530 can also comprise a mesh 532 as shown in Figure 4The sponge 532 is arranged in the second opening 520, and since the sponge 532 is a loose and porous structure, sewage can enter the second opening 520 through the sponge 532. The sponge 532 can play a filtering role on one hand, and on the other hand, the sponge 532 can be attached to the target wall surface to wipe and absorb water stains.

[0055] Further, along the thickness direction of the cleaning cover 400, the cleaning cover 400 is arranged with a plurality of mounting hole positions 410 at intervals, and the recovery structure further comprises an adapter 600, such as Figure 2 and Figure 3 As shown, the cleaning cover 400 is provided with a guide groove 430, and the recovery member 500 comprises a connecting portion 540 connected with the main body portion 510, the connecting portion 540 is exposed to the guide groove 430 and connected with the adapter 600 outside the cleaning cover 400. The adapter 600 can be selectively connected with the mounting hole position 410 to adjust the position of the recovery member 500 in the recovery cavity 501.

[0056] In some embodiments, the cleaning robot further comprises a driving structure connected with the cleaning cover 400. In the embodiment as shown in Figure 3 The back side of the cleaning cover 400 is provided with a mounting rack 700 for connecting with the driving structure. The driving structure can be a mechanical arm or the like, which is used to drive the cleaning cover 400 to move, so that the cleaning cover 400 can be arranged on the target wall surface and abut against the target wall surface.

[0057] In the embodiment as shown in Figure 2 The driving structure further comprises four rollers 420, two rollers 420 are arranged on opposite sides of the cleaning cover 400 respectively, and the rollers 420 can be universal wheels. After cleaning a target wall surface, the mechanical arm drives the cleaning cover 400 to move on the target wall surface to move to the next target wall surface to be cleaned to complete the cleaning operation. Alternatively, when the area of the target wall surface is large, the mechanical arm can drive the cleaning cover 400 to move on the target wall surface and complete the continuous cleaning operation in the moving process.

[0058] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A water-stopping structure, characterized by, The water-stopping structure comprises a water guide pipe, a nozzle and a water pump, two ends of the water guide pipe are communicated with the nozzle and the water pump respectively, and the water pump is used to drive water flow to flow through the water guide pipe and the nozzle in sequence and then to be sprayed out. The water-stopping structure further comprises an electromagnetic valve and a check valve arranged on the water guide pipe, the check valve is arranged close to the nozzle, the electromagnetic valve is arranged between the check valve and the water pump, and the electromagnetic valve is in communication connection with the water pump.

2. The water stop structure according to claim 1, characterized by When the water pump is closed, the electromagnetic valve is closed.

3. The water stop structure according to claim 1, wherein The length of the water guide pipe connecting the water pump and the electromagnetic valve is L1, and the length of the water guide pipe connecting the electromagnetic valve and the check valve is L2, L1 is greater than L2.

4. The water stop structure according to claim 3, wherein The check valve comprises a valve and a valve body, the valve body is communicated with the water guide pipe and is provided with a pipeline for the water flow to pass through, and the valve is movably connected with the valve body.

5. A water outlet device, characterized by When the difference between the upstream water pressure and the downstream water pressure of the check valve is less than a set value, the valve closes the pipeline.

6. A cleaning robot, characterized in that The nozzle has a water outlet hole communicated with the water guide pipe, when the pressure of the water guide pipe connecting the nozzle and the check valve is less than the pressure required for the water flow to pass through the water outlet hole, the residual water flow is accumulated in the water guide pipe between the nozzle and the check valve.

7. The cleaning robot of claim 6, wherein, The water-stopping structure comprises a water-stopping structure as claimed in any one of claims 1 to 4.

8. The cleaning robot of claim 7, wherein, The water outlet device comprises the water-stopping structure as claimed in claim 5.

9. The cleaning robot of claim 8, wherein, The cleaning robot comprises a recycling structure, the recycling structure comprises a cleaning cover body, the cleaning cover body defines a recycling cavity and a first opening communicated with the recycling cavity, and the nozzle of the water-stopping structure is fixedly connected to the cavity wall of the recycling cavity.

10. The cleaning robot of claim 7, wherein, The cleaning cover body is configured to be capable of being arranged on a target wall surface to receive sewage when the nozzle flushes the target wall surface. The recycling structure comprises at least one recycling member arranged in the recycling cavity, the recycling member comprises a main body portion provided with a second opening communicated with the recycling cavity, and the recycling member further comprises a filtering portion arranged at the second opening to enable the sewage to enter the second opening through the filtering portion. Along the thickness direction of the cleaning cover body, a plurality of mounting hole positions are arranged at intervals on the cleaning cover body, and the recycling structure further comprises an adapter arranged outside the recycling cavity, the adapter is connected with the recycling member, and the adapter is capable of being selectively connected with the mounting hole positions to adjust the position of the recycling member in the recycling cavity. The cleaning robot further comprises a driving structure connected with the cleaning cover body, the driving structure is used to drive the cleaning cover body to be arranged on the target wall surface and to make the cleaning cover body abut against the target wall surface.

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