CN219911843U - Pipeline state switcher and cleaning robot - Google Patents

Abstract

The utility model provides a pipeline state switcher and a cleaning robot, wherein the pipeline state switcher comprises: a housing, a pressing unit mounted on the housing, a cam, a pipe unit, and a driving unit; the extrusion unit at least comprises two extrusion blocks which are connected with the shell in a sliding way, and the pipeline unit at least comprises two pipeline groups; the extrusion block can do reciprocating motion along the radial direction of the cam under the drive of the cam, so that at least one group of pipeline groups are in a closed state when the other group of pipeline groups are in an open state. The pipeline state switcher provided by the embodiment of the utility model utilizes the characteristics of the cam to drive the extrusion block to move so as to extrude the corresponding pipeline groups, so that the switching states of the two pipeline groups are changed simultaneously.

Description

Pipeline state switcher and cleaning robot

Technical Field

The utility model relates to the technical field of cleaning robot pipeline control, in particular to a pipeline state switcher and a cleaning robot.

Background

The cleaning robot generally has a plurality of fluid (gas and liquid) pipelines inside to realize multiple functions related to gas and liquid, the transportation or pressurization of the fluid needs to be realized through a pump, and the cleaning robot has a limited internal space, and if a plurality of pumps are used for respectively transporting the fluid to different fluid pipelines at the same time, the cleaning robot occupies a large space and has high equipment cost.

Therefore, in order to realize fluid delivery of more fluid pipelines by using fewer pumps, so as to reduce space occupation and equipment cost, a plurality of pipeline groups are required to be arranged between the pump body and the fluid pipelines, the pump body and the fluid pipelines are connected with the pipeline groups in a reasonable arrangement mode, and switching of gas-liquid delivery is realized by controlling opening and closing of the pipeline groups, so that a single pump can perform more functions, for example, a single pump can deliver gas and liquid. The on-off state of the pipeline group is realized through the valves, if the number of the pipelines of the pipeline group is larger, the number of the valves used is larger, thus being unfavorable for control and effectively saving the internal space and the equipment cost.

Therefore, it is desirable to design a device that can rapidly switch the status of multiple pipes.

Disclosure of Invention

The utility model aims to provide a pipeline state switcher and a cleaning robot, which are used for solving the defects and shortcomings in the prior art.

The utility model relates to a pipeline state switcher, which comprises: a housing, a pressing unit mounted on the housing, a cam, a pipe unit, and a driving unit;

the extrusion unit at least comprises two extrusion blocks which are connected with the shell in a sliding way, the extrusion blocks are abutted against the outer peripheral surface of the cam, the pipeline unit at least comprises two pipeline groups, the two pipeline groups are respectively and correspondingly arranged on one side, opposite to the cam, of the two extrusion blocks, and the driving unit is used for driving the cam to rotate;

the extrusion block can do reciprocating motion along the radial direction of the cam under the drive of the cam so as to compress or loosen the corresponding pipeline group, and at least one pipeline group is in a closed state when the other pipeline group is in an open state.

Compared with the prior art, the pipeline state switcher provided by the embodiment of the utility model does not need to use more valve components, and utilizes the characteristics of the cam to drive the extrusion block to move so as to extrude the corresponding pipeline groups, so that the switching states of two groups of pipeline groups are changed simultaneously, one group of pipeline groups is in a closed state when the other group of pipeline groups are in an open state, the pipeline state switcher is reasonable in structural design and convenient to control, the pipeline group states can be switched rapidly, the pump body and other pipelines can be matched conveniently to use, the conversion of gas-liquid transportation is realized, and the pump body can execute more functions.

In a preferred or alternative embodiment, the pipeline state switch further comprises a position detection unit for detecting a rotational position of the cam.

In a preferred or alternative embodiment, the position detecting unit includes a PCB board, a first position sensor, a second position sensor and an inductive baffle, where the PCB board is fixedly connected to the housing, the first position sensor and the second position sensor are disposed on the PCB board, and the inductive baffle is fixed to an end surface of the cam to rotate along with the cam; when one group of pipeline groups is in an open state, the sensing baffle rotates to the first position sensor, and when the other group of pipeline groups is in an open state, the sensing baffle rotates to the second position sensor.

In a preferred or alternative embodiment, the outer circumferential surface of the cam comprises a first cambered surface, a second cambered surface and a third cambered surface which are sequentially connected and enclosed end to end; when the first cambered surface passes through an extrusion block from the head end to the tail end, the extrusion block can continuously compress the corresponding pipeline group; when the second cambered surface passes through an extrusion block from the head end to the tail end, the extrusion block can be gradually close to the axle center of the cam so as to loosen the corresponding pipeline group; when the third cambered surface passes through the extrusion block from the head end to the tail end, the extrusion block can be gradually far away from the axle center of the cam so as to compress the corresponding pipeline group.

In a preferred or alternative embodiment, each of the pipe groups includes a plurality of elastic conveying pipes, and the plurality of conveying pipes are arranged side by side along the length direction of the corresponding extrusion block.

In a preferred or alternative embodiment, the housing is provided with a sliding groove corresponding to the end portion of the pressing block, the sliding groove is arranged along the radial extension of the cam, and the two end portions of the pressing block are inserted into the sliding groove.

In a preferred or alternative embodiment, the pressing block protrudes toward the cam and has an abutment portion having an arcuate surface, the arcuate surface of the abutment portion abutting against the outer peripheral surface of the cam.

In a preferred or alternative embodiment, the housing includes an upper shell and a lower shell that are detachably connected, the upper shell and the lower shell enclose a receiving chamber, and the extrusion unit, the cam, and the pipe unit are all disposed in the receiving chamber.

In a preferred or alternative embodiment, two of said squeeze blocks are oppositely disposed on opposite sides of said cam.

A cleaning robot of the present utility model includes: the robot comprises a robot body and the pipeline state switcher, wherein the pipeline state switcher is arranged in the robot body.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

Drawings

FIG. 1 is a schematic diagram of a pipeline status switch according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a pipeline status switch according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a cam and a position detecting unit according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating an internal structure of a pipeline status switch according to an embodiment of the present utility model;

FIG. 5 is a schematic view showing the structure of an extrusion block according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of piping connection when the piping state switcher is applied in the embodiment of the present utility model;

reference numerals: 1. a housing; 11. an upper case; 12. a lower case; 21. extruding a block; 22. extruding a block; 210. an abutting portion; 211. an arc surface; 3. a cam; 31. a first cambered surface; 32. a second cambered surface; 33. a third cambered surface; 41. a pipe group; 411. a first delivery tube; 412. a second delivery tube; 413. a third delivery tube; 42. a pipe group; 421. a fourth conveying pipe; 422. a fifth conveying pipe; 423. a sixth conveying pipe; 5. a driving unit; 6. a position detection unit; 61. a PCB board; 62. a first position sensor; 63. a second position sensor; 64. and (5) sensing the baffle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is to be understood that in the description of the present utility model, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.

It should be noted that, in the description of the present utility model, unless explicitly specified and defined otherwise, the terms "disposed," "connected," and "hollow" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 6, an embodiment of the present utility model provides a pipeline status switch, including: a housing 1, and a pressing unit, a cam 3, a pipe unit and a driving unit 5 mounted on the housing 1.

As shown in fig. 1-2, the extrusion unit includes at least two extrusion blocks slidably connected to the housing 1, the extrusion blocks are abutted against the outer peripheral surface of the cam, the two extrusion blocks are respectively denoted as 21 and 22 in the drawing, the cam 3 is rotatably disposed between the two extrusion blocks, the pipe unit includes at least two pipe groups, respectively denoted as 41 and 42 in the drawing, each pipe group includes a plurality of pipes, and the two pipe groups are respectively disposed on the sides of the two extrusion blocks facing away from the cam 3, whereby the two extrusion blocks can extrude the respective two pipe groups, and it can be understood that when the extrusion blocks compress the pipe groups, the pipe groups are in a closed state, and when the extrusion blocks release the pipe groups, the pipe groups are in an open state.

The driving unit 5 is configured to drive the cam 3 to rotate, and the extrusion block may reciprocate along a radial direction of the cam 3 under the driving of the cam 3, so as to compress or loosen the corresponding pipe group, at least when one pipe group is in an open state, the other pipe group is in a closed state, that is, when the pipe group 41 is in an open state, the pipe group 42 is in a closed state, or when the pipe group 42 is in an open state, the pipe group 41 is in a closed state.

Compared with the prior art, the pipeline state switcher provided by the embodiment of the utility model does not need to use more valve components, and utilizes the characteristics of the cam 3 to drive the extrusion block to move so as to extrude the corresponding pipeline groups, so that the switching states of two groups of pipeline groups are changed simultaneously, one group of pipeline groups are in a closed state when the other group of pipeline groups are in an open state, the pipeline state switcher is reasonable in structural design and convenient to control, the states of the pipeline groups can be quickly switched, the pump body and other pipelines can be matched for use conveniently, the conversion of gas-liquid transportation is realized, and the pump body can execute more functions.

Preferably, the pipe state switcher further includes a position detecting unit 6, the position detecting unit 6 being configured to detect a rotational position of the cam 3. The position detection unit 6 is arranged to detect the rotation position of the cam 3, so that the cam 3 can be conveniently controlled to rotate to a preset position, and the switching states of the two pipeline groups can be accurately controlled. As shown in fig. 3, specifically, in the present embodiment, the position detecting unit 6 includes a PCB 61, a first position sensor 62, a second position sensor 63, and an inductive baffle 64, where the PCB 61 is fixedly connected to the housing 1, the first position sensor 62 and the second position sensor 63 are disposed on the PCB 61, and the inductive baffle 64 is fixed to an end surface of the cam 3 so as to rotate with the cam 3, and the inductive baffle 64 may pass through the first position sensor 62 and the second position sensor 63 when rotating. When the cam 3 rotates to drive the extrusion block to move, so that one group of pipeline groups (for example, the pipeline group 41) is in an open state, the sensing baffle plate 64 rotates to the first position sensor 62, at the moment, the first position sensor 62 senses the sensing baffle plate 64 and outputs a sensing signal, so that the pipeline group 41 can be known to be in an open state, the pipeline group 42 is in a closed state, when the cam 3 rotates to drive the extrusion block to move, so that the other group of pipeline groups (for example, the pipeline group 42) is in an open state, the sensing baffle plate 64 rotates to the second position sensor 63, at the moment, the second position sensor 63 senses the sensing baffle plate 64 and outputs a control signal, so that the pipeline group 42 can be known to be in an open state, and the pipeline group 41 is in a closed state.

It will be appreciated that the outer circumference of the cam 3 may be provided in a variety of ways such that the cam 3, when rotated, drives the extrusion block to extrude the corresponding tube bank. As shown in fig. 4, in this embodiment, preferably, the outer circumferential surface of the cam 3 includes a first arc surface 31, a second arc surface 32 and a third arc surface 33 that are sequentially connected end to end, that is, the tail end of the first arc surface 31 is connected to the head end of the second arc surface 32, the tail end of the second arc surface 32 is connected to the head end of the third arc surface 33, and the tail end of the third arc surface 33 is connected to the head end of the first arc surface 31, thereby enclosing the outer circumferential surface of the cam 3.

The characteristics of the first arc surface 31, the second arc surface 32, and the third arc surface 33 will be described below in the case when the cam 3 rotates counterclockwise: when the first cambered surface 31 passes through a squeezing block from the head end to the tail end, the squeezing block can continuously press the corresponding pipeline group, so that the corresponding pipeline group is kept in a closed state; when the second cambered surface 32 passes through a squeezing block from the head end to the tail end, the squeezing block can be gradually close to the axle center of the cam 3 so as to loosen the corresponding pipeline group, and the corresponding pipeline group is switched from a closed state to an open state; when the third arc surface 33 passes through a pressing block from the head end to the tail end, the pressing block may be gradually far away from the axis of the cam 3, so as to press the corresponding pipe group, so that the corresponding pipe group is switched from the open state to the closed state. Thus, by abutting the outer peripheral surface of the cam 3 against the pressing block 21 and the pressing block 22, the pressing block 21 and the pressing block 22 are driven to reciprocate in the radial direction of the cam 3 when the cam 3 rotates, so that the pipe group 41 and the pipe group 42 are pressed, and the on-off state of the two pipe groups is changed, respectively.

Preferably, in this embodiment, the two extrusion blocks are oppositely disposed on two opposite sides of the cam 3, in other words, the extrusion blocks 21 and 22 are symmetrically disposed along a central axis of the cam 3, so that it is convenient for the cam to control the motion states of the two extrusion blocks, and also is convenient for the specific design of the outer circumferential surface of the cam, for example, in this embodiment, the first cambered surface 31 is an arc surface, where an axis overlaps with a central axis of the cam 3, when the first cambered surface 31 passes through one of the extrusion blocks from the head end to the tail end, the cam 3 rotates for 1/2 weeks, the second cambered surface 32 and the third cambered surface 33 are both elliptical cambered surfaces, when the second cambered surface 32 passes through one of the extrusion blocks from the head end to the tail end, the cam 3 rotates for 1/4 weeks, and when the third cambered surface 33 passes through one of the extrusion blocks from the head end to the tail end, the cam 3 rotates for 1/4 weeks. Thus, when the pressing block 21 contacts with the head end of the first arc surface 31 (or the tail end of the third arc surface 33), the pressing block 22 just contacts with the tail end of the first arc surface 31 (or the head end of the second arc surface 32), and at this time, both the pipe group 41 and the pipe group 42 are pressed, in the closed state. Along with the anticlockwise rotation of the cam 3 for 1/4 of a circle, the extrusion block 22 can be made to contact with the tail end of the second cambered surface 32 (or the head end of the third cambered surface 33), the extrusion block 21 is just in contact with the middle part of the first cambered surface 31, during the process, the extrusion block 22 gradually approaches the axle center of the cam 3, the extrusion block 21 is kept unchanged, at the moment, the extrusion block 22 completely loosens the pipeline group 42, the pipeline group 42 is in an open state, the pipeline group 41 is still in a closed state, and the sensing baffle plate 64 just rotates to the position of the second position sensor 63. Continuing to rotate along with the cam 3 anticlockwise for 1/2 of a circle, the extrusion block 21 can be enabled to be in contact with the tail end of the second cambered surface 32 (or the head end of the third cambered surface 33), the extrusion block 22 is just in contact with the middle part of the first cambered surface 31, in the process, the position of the extrusion block 21 is kept unchanged firstly and then gradually approaches the axis of the cam 3, the extrusion block 22 is kept unchanged after gradually keeping away from the axis of the cam 3, at the moment, the extrusion block 21 completely loosens the pipeline group 41, the pipeline group 41 is in an open state, the pipeline group 42 is in a closed state, and the sensing baffle 64 just rotates to the position of the first position sensor 62. As can be seen from the above description, the cam 3 of the present embodiment can switch the on/off states of the two pipe groups once every 1/2 of a revolution, so that when one pipe group is in an on state, the other pipe group is in an off state.

It should be noted that, in some embodiments, the two pressing units and the pipe units may be disposed in a one-to-one correspondence, and one pressing unit corresponds to one pipe unit, so that more pipe state switching may be achieved, and only the outer peripheral surface of the cam 3 needs to be set to a desired shape.

In this embodiment, each of the pipe groups includes a plurality of elastic conveying pipes, and the plurality of conveying pipes are arranged side by side along the length direction of the corresponding extrusion block. The conveying pipe has elasticity, so that the conveying pipe has the characteristic of recovering deformation, and is beneficial to timely recovering an opening state after the extrusion block is loosened. The specific number of conveying pipes of each pipeline group is designed according to actual requirements, and specifically, each pipeline group comprises three conveying pipes.

Preferably, in this embodiment, a sliding groove (not shown) is disposed at a position of the housing 1 corresponding to the end portion of the extrusion block, the sliding groove is disposed along the radial extension of the cam 3, and two end portions of the extrusion block are inserted into the sliding groove, thereby facilitating the reciprocating sliding of the extrusion block along the radial direction of the cam 3. Further, as shown in fig. 5, the pressing block protrudes toward the cam 3, the abutting portion 210 has an arc surface 211, and the arc surface 211 of the abutting portion 210 abuts against the outer circumferential surface of the cam 3 to reduce friction between the cam 3 and the pressing block.

The shell 1 comprises an upper shell 11 and a lower shell 12 which are detachably connected, a containing cavity is enclosed by the upper shell 11 and the lower shell 12, and the extrusion unit, the cam 3, the pipeline unit and the position detection unit 6 are all arranged in the containing cavity. The driving unit 5 is a motor, the motor is fixed at the bottom of the lower shell 12, and an output shaft of the motor is connected with the cam 3.

For easy understanding, the following describes one of the cases of the pipeline state switch of the present embodiment when applied:

as shown in fig. 6, fig. 6 is a schematic diagram of pipe connection when the pipe state switch according to the embodiment of the present utility model is applied, the pipe group 41 includes a first pipe 411, a second pipe 412, and a third pipe 413, and the pipe group 42 includes a fourth pipe 421, a fifth pipe 422, and a sixth pipe 423.

When the duct group 41 is in the open state, the duct group 42 is in the closed state, that is, the first duct 411, the second duct 412, and the third duct 413 are in the open state, and the fourth duct 421, the fifth duct 422, and the sixth duct 423 are in the closed state. At this time, the negative pressure pump is started, and fluid is sucked from the pipe a through the third pipe 413 and discharged from the second pipe 412 to the pipe B, and further, fluid from the pipe C is allowed to flow to the pipe D through the first pipe 411.

When the duct group 41 is in the closed state, the duct group 42 is in the open state, that is, the first duct 411, the second duct 412, and the third duct 413 are in the closed state, and the fourth duct 421, the fifth duct 422, and the sixth duct 423 are in the open state. At this time, the negative pressure pump is started, and fluid is sucked from the B pipe through the fifth pipe 422 and discharged from the fourth pipe 421, and fluid from the C pipe may flow to the E pipe through the sixth pipe 423.

It can be seen that the pipeline state switcher according to the embodiment of the utility model can realize multi-pipeline switching, so that a single pump can perform more functions.

The embodiment of the utility model also provides a cleaning robot, which comprises a robot body and the pipeline state switcher, wherein the pipeline state switcher is arranged in the robot body. The cleaning robot can realize the quick switching of the state of the pipeline group, is convenient to use with a pump body and other pipelines, realizes the conversion of gas-liquid conveying, and enables the pump body to execute more functions.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (10)

1. A pipeline state switch, comprising:

a housing, a pressing unit mounted on the housing, a cam, a pipe unit, and a driving unit;

the extrusion unit at least comprises two extrusion blocks which are connected with the shell in a sliding way, the extrusion blocks are abutted against the outer peripheral surface of the cam, the pipeline unit at least comprises two pipeline groups, the two pipeline groups are respectively and correspondingly arranged on one side, opposite to the cam, of the two extrusion blocks, and the driving unit is used for driving the cam to rotate;

the extrusion block can do reciprocating motion along the radial direction of the cam under the drive of the cam so as to compress or loosen the corresponding pipeline group, and at least one pipeline group is in a closed state when the other pipeline group is in an open state.

2. The pipeline state switch of claim 1, wherein:

the cam driving device further comprises a position detection unit, wherein the position detection unit is used for detecting the rotation position of the cam.

3. The pipeline state switch of claim 2, wherein:

the position detection unit comprises a PCB, a first position sensor, a second position sensor and an induction baffle, wherein the PCB is fixedly connected in the shell, the first position sensor and the second position sensor are arranged on the PCB, and the induction baffle is fixed on the end face of the cam to rotate along with the cam; when one group of pipeline groups is in an open state, the sensing baffle rotates to the first position sensor, and when the other group of pipeline groups is in an open state, the sensing baffle rotates to the second position sensor.

4. The pipeline state switch of claim 1, wherein:

the outer peripheral surface of the cam comprises a first cambered surface, a second cambered surface and a third cambered surface which are sequentially connected and enclosed end to end; when the first cambered surface passes through an extrusion block from the head end to the tail end, the extrusion block can continuously compress the corresponding pipeline group; when the second cambered surface passes through an extrusion block from the head end to the tail end, the extrusion block can be gradually close to the axle center of the cam so as to loosen the corresponding pipeline group; when the third cambered surface passes through the extrusion block from the head end to the tail end, the extrusion block can be gradually far away from the axle center of the cam so as to compress the corresponding pipeline group.

5. The pipeline state switch of claim 1, wherein:

each pipeline group comprises a plurality of elastic conveying pipes, and the conveying pipes are arranged side by side along the length direction of the corresponding extrusion block.

6. The pipeline state switch of claim 1, wherein:

the shell is provided with a sliding groove corresponding to the end part of the extrusion block, the sliding groove extends along the radial direction of the cam, and the two end parts of the extrusion block are inserted into the sliding groove.

7. The pipeline state switch of claim 1, wherein:

the extrusion block protrudes towards the cam and is provided with an abutting portion, the abutting portion is provided with an arc-shaped surface, and the arc-shaped surface of the abutting portion abuts against the outer peripheral surface of the cam.

8. The pipeline state switch of any one of claims 1-7, wherein:

the shell comprises an upper shell and a lower shell which are detachably connected, a containing cavity is formed by encircling the upper shell and the lower shell, and the extrusion unit, the cam and the pipeline unit are arranged in the containing cavity.

9. The pipeline state switch of any one of claims 1-7, wherein:

the two extrusion blocks are oppositely arranged on two opposite sides of the cam.

10. A cleaning robot, comprising:

a robot body and a pipe state switcher according to any one of claims 1-9, said pipe state switcher being provided within said robot body.