Automatic water taking arm of laboratory water purifier

Abstract

The utility model relates to the field of water purification machines, and particularly discloses an automatic water taking arm of a laboratory water purification machine, the automatic water taking arm comprises an arm support, a position correcting assembly and a water taking handle, the arm support is composed of a base, a vertical pipe, a first sleeve and a side support, the vertical pipe is vertically installed on the base, the first sleeve is arranged on the vertical pipe in a sleeving mode and can slide along the vertical pipe, and the position correcting assembly is arranged on the side support; the side bracket is mounted on the side wall of the first sleeve; the position correcting assembly comprises a lifting motor, one end of the lifting motor is connected with the base, and the other end is connected with the first sleeve and used for adjusting the height of the first sleeve. The water taking handle is installed at the end, away from the first sleeve, of the side support and used for quantitatively absorbing water. Automatic water taking is achieved, and the water taking efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of pure water machines, and in particular to an automatic water dispensing arm for a laboratory pure water machine. Background Art

[0002] At present, laboratory pure water machines are widely used in scientific research and experimental analysis, especially in the fields of biochemistry, medical research, etc. The quality of pure water directly affects the reliability and accuracy of experimental results.

[0003] In the prior art, laboratory water purifiers primarily use manual and quantitative methods. Manual water extraction requires researchers to manually adjust the height of the water extraction arm and start and stop the water extraction process. While quantitative water extraction reduces some manual labor, it still requires manual settings for the water volume and adjustment of the extraction arm height, hindering researchers' hands-free operation and reducing work efficiency and user experience.

[0004] Regarding the above-mentioned related technologies, there are the following defects: manually adjusting the height of the water intake wall and the water intake amount will take a lot of time, which reduces the water intake efficiency of scientific researchers. Utility Model Content

[0005] In order to improve the water extraction efficiency of a water purifier, the present application provides an automatic water extraction arm for a laboratory water purifier.

[0006] The present application provides an automatic water dispensing arm for a laboratory water purifier using the following technical solutions:

[0007] An automatic water-drawing arm for a laboratory water purifier comprises an arm support, a positioning assembly and a water-drawing handle, wherein the arm support comprises a base, a vertical tube, a first sleeve and a side support, wherein the vertical tube is vertically mounted on the base, the first sleeve is sleeved on the vertical tube and is slidably connected to the vertical tube in the length direction of the vertical tube, and the side support is mounted on the side wall of the first sleeve; the positioning assembly comprises a lifting motor, one end of the lifting motor is connected to the base, and the other end is connected to the first sleeve; the water-drawing handle is mounted on the end of the side support away from the first sleeve for quantitative water absorption.

[0008] By adopting the above technical solution, the combined design of the base and the vertical tube enables the arm bracket to be stably fixed on the laboratory table. At the same time, the vertical tube serves as a support column, providing stable vertical support for the arm bracket. The first sleeve is mounted on the vertical tube and slidably connected to it, so that the arm bracket can freely adjust its height in the vertical direction to accommodate water-drawing handles of different heights. The side bracket is installed on the side wall of the first sleeve, which further enhances the stability of the arm bracket and provides a reliable installation platform for the water-drawing handle. One end of the lifting motor is connected to the base, and the other end is connected to the first sleeve. Through the driving action of the lifting motor, the automatic lifting of the arm bracket is realized, which greatly improves the convenience and efficiency of the water-drawing process. The water-drawing handle is installed at the end of the side bracket away from the first sleeve. It has the function of quantitative water absorption and can accurately control the amount of water drawn each time, avoiding errors caused by human operation. These designs together improve the overall performance and user experience of the automatic water-drawing arm of the laboratory pure water machine.

[0009] Preferably, the base includes a bottom plate and a box body, the box body is arranged above the bottom plate, and the box mouth of the box body is connected to the bottom plate; the box bottom of the box body is provided with a mounting hole, the vertical pipe is arranged above the box body, and one end is arranged in the mounting hole and is connected to the box body; the lifting motor is installed in the box body, and a lifting shaft is connected between the driving end and the first sleeve.

[0010] By adopting the above technical solution, the design of the base makes the entire device stable and reliable. The setting of the box body not only provides internal space to accommodate various electronic components, but also effectively protects these components from the influence of the external environment. The installation method of the vertical pipe ensures the stability of the structure and facilitates subsequent maintenance work. The mounting hole design at the bottom of the box body enables the vertical pipe to be firmly fixed to the base, enhancing the rigidity and stability of the overall structure. The installation of the lifting motor in the box body saves space and facilitates maintenance. At the same time, the lifting shaft design between its drive end and the first sleeve realizes the precise lifting and lowering of the arm bracket, improving the degree of automation and ease of use of the equipment.

[0011] Preferably, the lifting shaft and the first sleeve are both coaxial with the vertical tube; a coaxial guide tube is installed in the vertical tube, the guide tube is coaxially sleeved on the lifting shaft, and is slidably connected to the lifting shaft in the axial direction of the vertical tube.

[0012] By implementing this technical solution, the arm supports precise vertical movement, ensuring the stability and reliability of the water handle at various heights. The guide tube design effectively reduces the shaking of the lifting shaft during movement, improving the system's accuracy and response speed. This design also enables the arm supports to move up and down smoothly, avoiding positioning errors caused by mechanical instability and further enhancing the overall performance of the device.

[0013] Preferably, the lifting shaft and the first sleeve are both coaxial with the vertical tube, and the side wall of the first sleeve is provided with a slide groove arranged along the axial direction of the vertical tube; a slider is provided on the first sleeve, and the slider is slidingly connected to the vertical tube through the slide groove, and the slider is also connected to the end of the lifting shaft away from the lifting motor.

[0014] By adopting this technical solution, the coaxial design of the lifting shaft and the first sleeve with the vertical tube ensures the stability of the arm support during the lifting process, avoids shaking and wear caused by eccentricity, and improves the service life and reliability of the equipment. The sliding groove design on the side wall of the first sleeve allows the slider to slide smoothly along the axis of the vertical tube, further enhancing the movement precision and positioning accuracy of the arm support. The connection design of the slider to the lifting shaft ensures smoother and more efficient power transmission from the lifting motor, reduces power loss, and improves the system's response speed and control accuracy. This achieves improved stability and precision of the arm support.

[0015] Preferably, the side bracket includes a second sleeve, a connecting rod and a mounting seat, the second sleeve is coaxially sleeved on the first sleeve, the mounting seat is spaced apart on the side of the second sleeve, one end of the connecting rod is connected to the second sleeve, and the other end is connected to the mounting seat; the water intake handle is installed on the mounting seat.

[0016] By adopting the above technical solution, the second sleeve is coaxially sleeved on the first sleeve, facilitating quick installation of the side bracket on the first sleeve. When the arm bracket is positioned next to the water pool, the connecting rod is used to extend the mounting base to directly above the water pool, that is, to extend the water collection handle to directly above the water pool. When the water collection handle is lowered, it can contact the water in the water pool, making it easier to draw water.

[0017] Preferably, the water intake handle includes a handle bracket, a connecting vertical pipe, a pump body access pipe, a liquid level sensor and a water suction cup, and the handle bracket is installed on the mounting seat; the connecting vertical pipe is vertically installed at the lower end of the handle bracket; one end of the pump body access pipe is connected to the connecting vertical pipe, and the other end is used to connect to the water pump; the liquid level sensor is installed in the connecting vertical pipe; the water suction cup is arranged below the connecting vertical pipe, and both ends of the water suction cup have openings, and one open end is connected to the lower port of the connecting vertical pipe.

[0018] By adopting the above technical solution, the handle bracket of the water-drawing handle can be firmly installed on the mounting base, ensuring the stability and reliability of the entire water-drawing handle. The connecting vertical pipe is vertically installed at the lower end of the handle bracket, and the water suction cup is arranged below the connecting vertical pipe so that the water suction cup can contact the water source after the water-drawing handle is lowered. After the pump body access pipe is connected to the pump body, when the water suction cup contacts the water source, water can be directly sucked into the water suction cup through the pump body to realize water collection by the water suction cup. The liquid level sensor is installed in the connecting vertical pipe, which can monitor the liquid level changes in the water suction cup in real time, accurately control the water intake amount, and avoid overflow.

[0019] Preferably, the water suction cup includes a first cylinder and a second cylinder, the first end of the first cylinder and the first end of the second cylinder both have openings, and the second end of the first cylinder and the second end of the second cylinder are both closed; the open end of the first cylinder and the open end of the second cylinder are connected; the closed end of the second cylinder is provided with a water inlet nozzle; the closed end of the second cylinder is provided with a connecting pipe and a ventilation valve, and the end of the connecting pipe away from the second cylinder is detachably connected to the lower end port of the connecting vertical pipe.

[0020] By adopting the above technical solution, the first cylinder and the second cylinder form the main body of the water suction cup. When it is necessary to clean the inside of the water suction cup, the first cylinder and the second cylinder can be separated, thereby facilitating the cleaning of the inside of the water suction cup. The water inlet nozzle is used to absorb water from the water suction cup. The provision of the joint pipe facilitates the connection with the connecting vertical pipe, thereby enabling the water pump to suck away the air in the water suction cup through the pipeline composed of the joint pipe, the connecting vertical pipe and the pump body access pipe, thereby generating negative pressure in the water suction cup and thereby drawing water into the water suction cup. The function of the air exchange valve is to open the air exchange valve when the joint pipe is closed due to factors such as a malfunction, thereby balancing the internal and external air pressures of the water suction cup, thereby allowing the fluid in the water suction cup to flow out smoothly from the water inlet nozzle under the action of gravity.

[0021] Preferably, the side wall of the second sleeve is provided with a first distance measuring sensor arranged opposite to the water suction cup.

[0022] By adopting the above technical solution, the first distance measuring sensor can monitor the distance between the water suction cup and the second sleeve in real time, ensuring that when taking water, it can determine whether the water suction cup exists, and avoid the water collection handle from operating when there is no water collection cup.

[0023] Preferably, a second ranging sensor is provided at the lower end of the mounting seat.

[0024] By adopting the above technical solution, the second distance measuring sensor accurately detects the height of the water cup, and then determines the distance between the water cup and the water surface when taking water, thereby improving the accuracy and reliability of automatic water collection.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. In this application, the first sleeve is mounted on the vertical pipe and is slidably connected thereto, so that the arm bracket can freely adjust its height in the vertical direction to adapt to water-taking handles of different heights. One end of the lifting motor is connected to the base, and the other end is connected to the first sleeve. Through the driving action of the lifting motor, the automatic lifting of the arm bracket is realized, which greatly improves the convenience and efficiency of the water-taking process.

[0027] 2. In this application, the lifting shaft and the first sleeve are coaxial with the vertical pipe, which realizes the precise vertical movement of the arm bracket and ensures the stability and reliability of the water intake arm at different heights.

[0028] 3. The design of the guide tube in this application effectively reduces the shaking of the lifting shaft during movement, improves the accuracy and response speed of the system. At the same time, this design enables the arm bracket to move up and down smoothly, avoiding positioning errors caused by unstable mechanical structure, and further improving the overall performance of the equipment.

[0029] 4. The slide groove design on the side wall of the first sleeve in this application enables the slider to slide smoothly along the axis of the vertical tube, further enhancing the movement precision and positioning accuracy of the arm support. The connection design between the slider and the lifting shaft ensures smoother and more efficient power transmission from the lifting motor, reduces power loss, and improves the system's response speed and control accuracy. This achieves improved stability and precision of the arm support.

[0030] 5. In this application, the water suction cup is arranged below the connecting vertical pipe so that the water collection handle can contact the water source after it is lowered. After the pump body access tube is connected to the pump body, when the water suction cup contacts the water source, water can be directly sucked into the water suction cup through the pump body to realize water collection from the water suction cup. The liquid level sensor is installed in the connecting vertical pipe, which can monitor the liquid level changes in the water suction cup in real time, accurately control the water collection amount, and avoid overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0033] Figure 2 It is along Figure 1 Schematic diagram of the cross-sectional structure along line AA.

[0034] Reference numerals:

[0035] 1. Arm support;

[0036] 11. Base; 111. Bottom plate; 11101. First heat dissipation hole; 112. Support legs; 113. Box body; 11301. Second heat dissipation hole; 11302. Mounting hole;

[0037] 12, vertical pipe; 1201, chute; 121, guide pipe;

[0038] 13. First sleeve; 131. Slider;

[0039] 14. Side bracket; 141. Second sleeve; 142. Connecting rod; 143. Mounting seat;

[0040] 15. First distance measuring sensor; 16. Second distance measuring sensor;

[0041] 17. Top bracket;

[0042] 2. Positioning assembly; 21. Lifting motor; 22. Lifting shaft; 23. Rotating motor;

[0043] 3. Water collection handle; 30. Handle bracket;

[0044] 31. Connecting riser pipe; 32. Pump access pipe; 33. Liquid level sensor;

[0045] 34. Water suction cup; 341. First cylinder; 342. Water inlet nozzle; 343. Second cylinder; 344. Air exchange valve; 345. Connector pipe;

[0046] 4. Display screen; 41. Facial recognition camera. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1-2 This application is described in further detail.

[0048] The embodiment of the present application discloses an automatic water dispensing arm for a laboratory water purifier.

[0049] Reference Figure 1 and Figure 2The invention discloses an automatic water extraction arm for a laboratory pure water machine, comprising an arm support 1, a calibration component 2 and a water extraction handle 3. The arm support 1 comprises a base 11, a vertical tube 12, a first sleeve 13 and a side support 14. The vertical tube 12 is vertically mounted on the base 11. The combined design of the base 11 and the vertical tube 12 enables the arm support 1 to be stably fixed on the laboratory table. At the same time, the vertical tube 12 serves as a support column, providing a stable vertical support for the arm support 1. The first sleeve 13 is sleeved on the vertical tube 12 and is slidably connected to the vertical tube 12 in the length direction of the vertical tube 12. The side support 14 is mounted on the side wall of the first sleeve 13 so that the side support 14 can freely adjust its height in the vertical direction. The calibration component 2 comprises a lifting motor 21, one end of the lifting motor 21 is connected to the base 11, and the other end is connected to the first sleeve 13. The lifting motor 21 is connected to the base 11 at one end and to the first sleeve 13 at the other end. The lifting motor 21 is driven by the motor to realize the automatic lifting of the side support 14, greatly improving the convenience and efficiency of the water extraction process. The water intake handle 3 is mounted on the end of the side bracket 14 away from the first sleeve 13 and is used for quantitative water intake. The water intake handle 3 can be raised and lowered as the side bracket 14 is raised and lowered, making it easy to adjust the height of the water intake handle 3. Furthermore, the water intake handle 3 is mounted on the end of the side bracket 14 away from the first sleeve 13 and has a quantitative water intake function, which can accurately control the amount of water taken each time, avoiding errors caused by human operation.

[0050] Reference Figure 1 and Figure 2 The base 11 includes a bottom plate 111 and a box body 113. The box body 113 is located above the bottom plate 111, and the box opening of the box body 113 is connected to the bottom plate 111. The bottom of the box body 113 is provided with a mounting hole 11302. The vertical pipe 12 is located above the box body 113, and one end is located in the mounting hole 11302 and is connected to the box body 113. The mounting hole 11302 can be a screw hole, a socket, etc., so that the vertical pipe 12 and the box body 113 can be screwed and plugged together, which facilitates the installation of the vertical pipe 12. In order to better protect the lifting motor 21, the lifting motor 21 is installed in the box body 113, and a lifting shaft 22 is connected between the driving end and the first sleeve 13. A plurality of legs 112 are provided at the lower end of the bottom plate 111. A plurality of first heat dissipation holes 11101 are provided on the bottom plate 111, and two heat dissipation holes are provided on the box body 113.

[0051] Reference Figure 1 and Figure 2, the lifting shaft 22 and the first sleeve 13 are both coaxial with the vertical tube 12. A coaxial guide tube 121 is installed in the vertical tube 12, and the guide tube 121 is coaxially sleeved on the lifting shaft 22, and is slidingly connected to the lifting shaft 22 in the axial direction of the vertical tube 12. In the embodiment of the present application, the precise vertical movement of the arm bracket 1 is achieved, and the stability and reliability of the water intake handle 3 at different heights are ensured. The design of the guide tube 121 effectively reduces the shaking of the lifting shaft 22 during movement, and improves the accuracy and response speed of the system. At the same time, this design enables the arm bracket 1 to move up and down smoothly, avoids positioning errors caused by unstable mechanical structure, and further improves the overall performance of the equipment.

[0052] Reference Figure 1 and Figure 2 The lifting shaft 22 and the first sleeve 13 are both coaxial with the vertical tube 12, and the side wall of the first sleeve 13 is provided with a slide groove 1201 arranged along the axial direction of the vertical tube 12. A slider 131 is provided on the first sleeve 13, and the slider 131 is slidably connected to the vertical tube 12 through the slide groove 1201. The slider 131 is also connected to the end of the lifting shaft 22 away from the lifting motor 21. In the embodiment of the present application, the design of the lifting shaft 22 and the first sleeve 13 being coaxial with the vertical tube 12 ensures the stability of the arm support 1 during the lifting process, avoids shaking and wear caused by eccentricity, and improves the service life and reliability of the equipment. The design of the slide groove 1201 on the side wall of the first sleeve 13 enables the slider 131 to slide smoothly along the axial direction of the vertical tube 12, further enhancing the movement accuracy and positioning accuracy of the arm support 1. The connection design of the slider 131 and the lifting shaft 22 ensures that the power transmission of the lifting motor 21 is smoother and more efficient, reduces power loss, and improves the response speed and control accuracy of the system. The stability and accuracy of the arm support 1 are improved.

[0053] Reference Figure 1 and Figure 2 The side bracket 14 includes a second sleeve 141, a connecting rod 142 and a mounting seat 143. The second sleeve 141 is coaxially sleeved on the first sleeve 13, and the mounting seat 143 is spaced apart on the side of the second sleeve 141. One end of the connecting rod 142 is connected to the second sleeve 141, and the other end is connected to the mounting seat 143. The water-drawing handle 3 is mounted on the mounting seat 143. In the embodiment of the present application, the second sleeve 141 is coaxially sleeved on the first sleeve 13, which facilitates the quick installation of the side bracket 14 on the first sleeve 13. When the arm bracket 1 stays next to the water-drawing pool, the connecting rod 142 is used to extend the mounting seat 143 to the top of the water-drawing pool, that is, to extend the water-drawing handle 3 to the top of the water-drawing pool, so that after the water-drawing handle 3 is lowered, it can contact the water in the water-drawing pool, making it convenient for the water-drawing handle 3 to draw water.

[0054] Reference Figure 1 and Figure 2 The water intake handle 3 includes a handle bracket 30, a connecting vertical pipe 31, a pump body access pipe 32, a liquid level sensor 33, and a water suction cup 34. The handle bracket 30 is mounted on the mounting base 143. The connecting vertical pipe 31 is vertically mounted at the lower end of the handle bracket 30. One end of the pump body access pipe 32 is connected to the connecting vertical pipe 31, and the other end is used to connect to the water pump. The liquid level sensor 33 is mounted in the connecting vertical pipe 31. The water suction cup 34 is located below the connecting vertical pipe 31. Both ends of the water suction cup 34 have openings, and one open end is connected to the lower end of the connecting vertical pipe 31. In the embodiment of the present application, the handle bracket 30 of the water intake handle 3 can be firmly mounted on the mounting base 143, ensuring the stability and reliability of the entire water intake handle 3. The connecting vertical pipe 31 is vertically mounted at the lower end of the handle bracket 30, and the water suction cup 34 is located below the connecting vertical pipe 31 to facilitate the water suction cup 34 to contact the water source after the water intake handle 3 is lowered. After the pump inlet pipe 32 is connected to the pump body, when the water cup 34 contacts the water source, water can be directly sucked into the water cup 34 through the pump body, thereby achieving water intake from the water cup 34. A liquid level sensor 33 is installed in the connecting riser pipe 31 to monitor the liquid level changes in the water cup 34 in real time, accurately controlling the water intake and preventing overflow.

[0055] Reference Figure 1 and Figure 2 The water suction cup 34 includes a first cylinder 341 and a second cylinder 343. The first end of the first cylinder 341 and the first end of the second cylinder 343 both have openings, and the second end of the first cylinder 341 and the second end of the second cylinder 343 are both closed. The open end of the first cylinder 341 and the open end of the second cylinder 343 are connected. The closed end of the second cylinder 343 is provided with a water inlet suction nozzle 342. The closed end of the second cylinder 343 is provided with a joint pipe 345 and a ventilation valve 344. The end of the joint pipe 345 away from the second cylinder 343 is detachably connected to the lower end of the vertical pipe 31.

[0056] Reference Figure 1 and Figure 2In the embodiment of the present application, the first barrel 341 and the second barrel 343 form the main body of the water cup 34. When the interior of the water cup 34 needs to be cleaned, the first barrel 341 and the second barrel 343 can be separated, thereby facilitating cleaning of the interior of the water cup 34. The water inlet nozzle 342 is used to absorb water from the water cup 34. The provision of the joint pipe 345 facilitates connection to the vertical connecting pipe 31, thereby enabling the water pump to remove air from the water cup 34 through the pipeline consisting of the joint pipe 345, the vertical connecting pipe 31, and the pump body access pipe 32, thereby generating a negative pressure in the water cup 34 and drawing water into the water cup 34. The function of the air exchange valve 344 is to open the air exchange valve 344 when the joint pipe 345 is closed due to a malfunction or other factors, thereby balancing the internal and external air pressures of the water cup 34, thereby allowing the fluid in the water cup 34 to flow smoothly out of the water inlet nozzle 342 under the action of gravity.

[0057] Reference Figure 1 and Figure 2 The side wall of the second sleeve 141 is provided with a first distance measuring sensor 15 disposed opposite the water suction cup 34. In the embodiment of the present application, the first distance measuring sensor 15 is a first TOF detection unit. The first distance measuring sensor 15 can monitor the distance between the water suction cup 34 and the second sleeve 141 in real time, ensuring that the presence of the water suction cup 34 can be determined when water is being drawn, thereby preventing the water drawing handle 3 from operating without the water drawing cup.

[0058] Reference Figure 1 and Figure 2 A second distance measuring sensor 16 is provided at the bottom end of the mounting base 143. In the embodiment of the present application, the second distance measuring sensor 16 is a second TOF detection unit. The second distance measuring sensor 16 accurately detects the height of the water cup and then determines the distance between the water cup and the water surface when dispensing water, thereby improving the accuracy and reliability of automatic water dispensing.

[0059] Reference Figure 1 and Figure 2 A top bracket 17 is also provided above the first sleeve 13. A rotary motor 23 is connected between the top bracket 17 and the first sleeve 13. The rotary motor 23 drives the top bracket 17 to rotate. A display screen 4 and a facial recognition camera 41 are mounted on the top bracket 17. The display screen 4 is used to display the working data of the various electronic components of the laboratory water purifier's automatic water dispensing arm. The facial recognition camera 41 is used to record and identify researchers using the laboratory water purifier's automatic water dispensing arm. In this application, the display screen 4 and the facial recognition camera 41 are both prior art, and the display screen 4 can also be used as a controller to control the operation of the various electronic components of the laboratory water purifier's automatic water dispensing arm.

[0060] The implementation principle of the automatic water dispensing arm of a laboratory water purifier in the embodiment of the present application is as follows:

[0061] Mount the arm support 1 near the water collection pool. First, use the first distance measuring sensor 15 to determine whether the suction cup 34 is located at the lower end of the water collection handle 3. When determining the presence of the suction cup 34, the distance value interval between the suction cup 34 and the first distance measuring sensor 15 is set to A when the suction cup 34 is located at the lower end of the water collection handle 3. If the suction cup 34 is not located at the lower end of the water collection handle 3, the first distance measuring sensor 15 detects the distance value between the first distance measuring sensor 15 and other objects in the direction away from the water collection arm. The distance value interval detected by the first distance measuring sensor 15 at this time is set to B. In this case, B and A do not overlap. In other words, when the detection data interval of the first distance measuring sensor 15 is A, the suction cup 34 is located at the lower end of the water collection handle 3, and the water collection process can continue. When the detection data interval of the first distance measuring sensor 15 is B, there is no water suction cup 34 at the lower end of the water collection handle 3, and the water collection process cannot proceed to the next step. At this time, the researchers can clearly see that the water collection arm is not continuing to work and can install the water suction cup 34 in place in time.

[0062] When the water cup 34 is located at the lower end of the water collection handle 3, the side bracket 14 is automatically raised and lowered by the driving action of the lifting motor 21. The second distance measuring sensor 16 accurately detects the height of the water cup and thus determines the distance between the water cup and the water surface during water collection. When the water inlet nozzle 342 of the water cup is submerged to a sufficient depth below the water surface, the lifting motor 21 stops. Here, the sufficient depth of the water inlet nozzle 342 below the water surface refers to the water cup 34 being filled with water, and the water level in the water collection pool dropping, while the water inlet nozzle 342 remains below the water surface.

[0063] When the water cup 34 is full of water, the liquid level sensor 33 connected to the vertical pipe 31 can contact the water at the top of the water cup 34, confirming that the water cup 34 has been accurately and quantitatively filled with water. The water cup 34 then rises, and the researchers move the full water cup 34 to the next process.

[0064] The size of the joint pipe 345 of the water absorption cup 34 is fixed. When it is necessary to take water of different volumes, the water absorption cup 34 of the corresponding volume can be directly replaced.

[0065] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0066] The above are all optional embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic water dispensing arm for a laboratory water purifier, characterized by: The invention comprises an arm support (1), a positioning assembly (2) and a water-taking handle (3), wherein the arm support (1) comprises a base (11), a vertical pipe (12), a first sleeve (13) and a side support (14), wherein the vertical pipe (12) is vertically mounted on the base (11), the first sleeve (13) is sleeved on the vertical pipe (12) and is slidably connected to the vertical pipe (12) in the longitudinal direction of the vertical pipe (12), and the side support (14) is mounted on the side wall of the first sleeve (13); The calibration component (2) includes a lifting motor (21), one end of the lifting motor (21) is connected to the base (11), and the other end is connected to the first sleeve (13); The water intake handle (3) is mounted on an end of the side bracket (14) away from the first sleeve (13) and is used for quantitative water absorption.

2. The automatic water dispensing arm of a laboratory water purifier according to claim 1, characterized in that: The base (11) comprises a bottom plate (111) and a box body (113), wherein the box body (113) is arranged above the bottom plate (111), and a box opening of the box body (113) is connected to the bottom plate (111); The bottom of the box body (113) is provided with a mounting hole (11302), the vertical pipe (12) is provided above the box body (113), one end of the vertical pipe (12) is provided in the mounting hole (11302), and is connected to the box body (113); The lifting motor (21) is installed in the box body (113), and a lifting shaft (22) is connected between the driving end and the first sleeve (13).

3. The automatic water dispensing arm of a laboratory water purifier according to claim 2, characterized in that: The lifting shaft (22) and the first sleeve (13) are both coaxial with the vertical pipe (12); A coaxial guide tube (121) is installed in the vertical tube (12), and the guide tube (121) is coaxially sleeved on the lifting shaft (22) and is slidably connected to the lifting shaft (22) in the axial direction of the vertical tube (12).

4. The automatic water dispensing arm of a laboratory water purifier according to claim 2, characterized in that: The lifting shaft (22) and the first sleeve (13) are both coaxial with the vertical tube (12), and the side wall of the first sleeve (13) is provided with a sliding groove (1201) arranged along the axial direction of the vertical tube (12); A slider (131) is provided on the first sleeve (13), and the slider (131) is slidably connected to the vertical tube (12) through the sliding groove (1201). The slider (131) is also connected to an end of the lifting shaft (22) away from the lifting motor (21).

5. The automatic water dispensing arm of a laboratory water purifier according to claim 1, characterized in that: The side bracket (14) comprises a second sleeve (141), a connecting rod (142) and a mounting seat (143); the second sleeve (141) is coaxially sleeved on the first sleeve (13); the mounting seat (143) is spaced apart and arranged on the side of the second sleeve (141); one end of the connecting rod (142) is connected to the second sleeve (141), and the other end is connected to the mounting seat (143); The water intake handle (3) is mounted on the mounting seat (143).

6. The automatic water dispensing arm of a laboratory water purifier according to claim 5, characterized in that: The water intake handle (3) comprises a handle bracket (30), a connecting vertical pipe (31), a pump body access pipe (32), a liquid level sensor (33) and a water suction cup (34); the handle bracket (30) is mounted on the mounting seat (143); The connecting vertical pipe (31) is vertically mounted on the lower end of the handle bracket (30); One end of the pump body access pipe (32) is connected to the connecting vertical pipe (31), and the other end is used to connect to the water pump; The liquid level sensor (33) is installed in the connecting vertical pipe (31); The water suction cup (34) is arranged below the connecting vertical pipe (31), and both ends of the water suction cup (34) have openings, and one open end is connected to the lower end of the connecting vertical pipe (31).

7. The automatic water dispensing arm of a laboratory water purifier according to claim 6, characterized in that: The water absorption cup (34) comprises a first cylinder (341) and a second cylinder (343), wherein the first end of the first cylinder (341) and the first end of the second cylinder (343) both have openings, and the second end of the first cylinder (341) and the second end of the second cylinder (343) are both closed; The open end of the first cylinder (341) is connected to the open end of the second cylinder (343); The closed end of the second cylinder (343) is provided with a water inlet nozzle (342); The closed end of the second cylinder (343) is provided with a joint pipe (345) and a ventilation valve (344), and the end of the joint pipe (345) away from the second cylinder (343) is detachably connected to the lower end of the connecting vertical pipe (31).

8. The automatic water dispensing arm of a laboratory water purifier according to claim 7, characterized in that: A first distance measuring sensor (15) is provided on the side wall of the second sleeve (141) and is arranged opposite to the water suction cup (34).

9. The automatic water dispensing arm of a laboratory water purifier according to claim 7, characterized in that: A second distance measuring sensor (16) is provided at the lowermost end of the mounting seat (143).

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