pH meter probe fixing device

Abstract

The utility model discloses a pH meter probe fixing device, including fixed plate, swing board and fixed plate parallel and be located below fixed plate, and one end of swing board is passed through a first shaft and fixed plate pivot connection, and swing board is driven under swing drive piece and swings along fixed plate in horizontal surface. Lifting drive part and swing board fixed connection and be located one side of first shaft. Probe is connected through the output end of floating module and lifting drive part, and probe switches in the first position and second position in the swing process of swing board, and the below of first position and second position has placed respectively measured groove and cleaning groove. The device can switch probe between different positions, and it is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of pH detection technology, and in particular to a pH meter probe fixing device. Background Technology

[0002] A pH meter is an instrument used to determine the acidity or alkalinity of a solution. Typically, the pH meter probe is inserted into the solution being tested, and the probe transmits a signal to the pH meter, which then calculates the pH value. Currently, pH meter probes are usually handheld during testing, and to ensure accuracy in each test, the probe needs to be cleaned after each test to remove contaminants that might affect accuracy. These factors add to the inconvenience of operation. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a pH meter probe fixing device that can switch the probe between different positions for easy cleaning.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a pH meter probe fixing device, comprising: Fixing plate; A swing plate is parallel to and located below the fixed plate. One end of the swing plate is pivotally connected to the fixed plate via a first shaft. The swing plate swings along the fixed plate in a horizontal plane under the drive of the swing drive component. A lifting drive component, which is fixedly connected to the swing plate and located on one side of the first shaft; The probe is connected to the output end of the lifting drive component via a floating component. The probe switches between a first position and a second position during the swinging process of the swing plate. The test tank and the cleaning tank are respectively placed below the first position and the second position. The beneficial effects of this utility model are as follows: The pH meter probe fixing device can fix the probe in place, eliminating the need to manually remove the probe. The lifting drive can drive the probe vertically in and out of the test tank to perform pH testing on the liquid in the test tank.

[0005] The device is equipped with a swing plate and a swing drive that drives the swing plate to swing. After the test is completed, the probe can swing to the position of the cleaning tank. The cleaning tank contains cleaning fluid, which can clean the probe when it moves down, so that the probe is ready for the next measurement.

[0006] Furthermore, the swing drive component is a cylinder hinged to the fixed plate, and the piston rod of the cylinder is hinged to the end of the swing plate away from the first axis via a second shaft. This hinged structure converts the horizontal force of the cylinder piston rod into the swinging force of the swing plate. Furthermore, the swing drive component is fixed to the upper surface of the fixed plate, and the second shaft passes through the fixed plate vertically. The fixed plate has a clearance groove to allow the second shaft to swing. In addition to allowing the second shaft to move, the clearance groove also guides the movement of the second shaft.

[0007] Furthermore, a guide block is fixed to the lower surface of the fixed plate, and a C-shaped guide groove is formed on the guide block. The end of the swing plate away from the first axis is embedded in the C-shaped guide groove and slides within the C-shaped guide groove. The guide block guides the swing of the swing plate on one hand, and supports the swing plate on the other hand, preventing the end of the swing plate away from the first axis from falling.

[0008] Furthermore, the lifting drive is positioned near the end of the swing plate furthest from the first axis. At this point, the lifting drive travels the greatest distance when the swing plate swings around the first axis, ensuring sufficient space between the first and second positions for the placement of the test tank and the cleaning tank. Furthermore, the floating assembly includes a connecting plate and a lifting plate located below the connecting plate. The connecting plate is connected to the output end of the lifting drive component. A guide rod is fixed on the lifting plate, passing through the connecting plate and movable up and down along it. A spring is sleeved on the guide rod between the connecting plate and the lifting plate. The floating assembly achieves elastic contact between the probe and the bottom of the test tank and the cleaning tank, preventing the probe from falling too far and being damaged.

[0009] Furthermore, a fall arrestor block is fixed on the guide rod above the connecting plate. When the fall arrestor block abuts against the connecting plate, the spring is in a compressed state or a free state. Furthermore, the probe and the connecting plate are detachably connected, making it easy to replace the probe as needed. Attached Figure Description

[0010] Figure 1 These are side views and partial enlarged views of embodiments of the present utility model; Figure 2 These are front views and partial enlarged views of embodiments of the present utility model; Figure 3 This is a top view of the fixing plate in an embodiment of this utility model.

[0011] In the picture: 1. Fixed plate; 11. Clearance groove; 12. Guide block; 121. C-shaped guide groove; 2. Swing plate; 21. First shaft; 22. Second shaft; 3. Lifting drive component; 4. Floating assembly; 41. Connecting plate; 42. Lifting plate; 43. Guide rod; 431. Anti-fall block; 44. Spring; 5. Probe; 6. Swing drive component; 7. Test groove; 8. Cleaning groove. Detailed Implementation The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0012] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0013] This utility model discloses a pH meter probe fixing device for fixing the probe, and the probe and pH meter main unit are connected wirelessly or wiredly.

[0014] See appendix Figure 1-3 As shown, the pH meter probe fixing device includes a fixing plate 1, a swing plate 2, a lifting drive component 3, and a probe 5.

[0015] The swing plate 2 is parallel to the fixed plate 1 and located below the fixed plate 1. One end of the swing plate 2 is pivotally connected to the fixed plate 1 via a first shaft 21. The swing plate 2 swings horizontally along the fixed plate 1 under the drive of the swing drive 6. The lifting drive 3 is fixedly connected to the swing plate 2 and located on one side of the first shaft 21, that is, the lifting drive 3 and the first shaft 21 are eccentrically set. When the swing plate 2 swings, the path of the lifting drive 3 is an arc. The probe 5 can swing synchronously with the lifting drive 3 and rise and fall under the drive of the lifting drive 3. The probe 5 switches between a first position and a second position during the swing of the swing plate 2. The test tank 7 and the cleaning tank 8 are respectively placed below the first position and the second position.

[0016] In this embodiment, the pH meter probe 5 fixing device can fix the probe 5, eliminating the need for manual removal of the probe 5. The lifting drive 3 can drive the probe 5 vertically in and out of the test tank 7 to perform pH testing on the liquid to be tested in the test tank 7. At the same time, a swing plate 2 and a swing drive 6 that drives the swing plate 2 to swing are provided. In this way, after the test is completed, the probe 5 can swing to the position of the cleaning tank 8. The cleaning tank 8 stores cleaning fluid, which can clean the probe 5 when it moves down, so that the probe 5 is ready for the next measurement.

[0017] Participate in the attached Figure 3 As shown, the swing drive 6 is a cylinder hinged to the fixed plate 1. The piston rod of the cylinder is hinged to the end of the swing plate 2 away from the first shaft 21 via the second shaft 22. Using the hinge structure, the horizontal force of the cylinder piston rod is converted into the swinging force of the swing plate 2. When the piston rod extends or retracts, it can push the swing plate 2 to swing back and forth in the horizontal direction. During the swinging process, the probe 5 switches between the first position and the second position. The small gap between the swing plate 2 and the fixed plate 1 reduces the length of the first shaft 21, making the swing of the swing plate 2 more stable. Therefore, the swing drive 6 is fixed to the upper surface of the fixed plate 1. The second shaft 22 passes through the fixed plate 1 vertically, and the fixed plate 1 has a clearance groove 11 to allow the second shaft 22 to swing. The clearance groove 11 is arc-shaped, with the center of the arc being the axis of the first shaft 21. In this case, the movement paths of the clearance groove 11 and the second shaft 22 are the same. In addition to making way for the second shaft 22, the clearance groove 11 also guides the movement of the second shaft 22.

[0018] See appendix Figure 1As shown, a guide block 12 is fixed to the lower surface of the fixed plate 1. A C-shaped guide groove 121 is formed on the guide block 12. The end of the swing plate 2 away from the first shaft 21 is embedded in the C-shaped guide groove 121 and slides within the C-shaped guide groove 121. The swing plate 2 bears its own weight as well as the weight of the lifting drive component 3 and the probe 5. In particular, the lifting drive component 3 and the probe 5 are concentrated on the side of the swing plate 2 away from the first shaft 21. Therefore, the downward force on the swing plate 2 at this point is relatively large. The guide block 12 is provided to guide the swing of the swing plate 2 on the one hand, and to support the swing plate 2 on the other hand, preventing the end of the swing plate 2 away from the first shaft 21 from falling.

[0019] In one embodiment, the lifting drive 3 is positioned near the end of the swing plate 2 away from the first shaft 21, meaning that the lifting drive 3 and the first shaft 21 are located at opposite ends of the swing plate 2 along its length. In this case, the moving distance of the lifting drive 3 is the greatest when the swing plate 2 swings around the first shaft 21, ensuring that there is sufficient space between the first and second positions for the test tank 7 and the cleaning tank 8 to be placed. In one embodiment, probe 5 is connected to the floating component 4 and the lifting drive component 3. When probe 5 moves down and inserts into the test tank 7 and the cleaning tank 8, it may touch the bottom of the test tank 7 and the cleaning tank 8. If probe 5 makes rigid contact with the bottom of the tank, it will cause damage to probe 5. Therefore, the floating component 4 is provided so that probe 5 can make elastic contact with the bottom of the tank, thus avoiding damage to probe 5.

[0020] See appendix Figure 2 As shown, the floating assembly 4 includes a connecting plate 41 and a lifting plate 42 located below the connecting plate 41. The connecting plate 41 is connected to the output end of the lifting drive component 3. A guide rod 43 is fixed on the lifting plate 42. The guide rod 43 passes through the connecting plate 41 and can move up and down along the connecting plate 41. A spring 44 is sleeved on the guide rod 43 between the connecting plate 41 and the lifting plate 42. The lifting plate 42 and the probe 5 on it can move upward relative to the fixed plate 1 under the limitation of the bottom of the tank, and when the external force is removed, it quickly resets under the elastic force of the spring 44, realizing elastic contact between the probe and the bottom of the tank.

[0021] A fall arrestor block 431 is fixed on the guide rod 43, located above the connecting plate 41. When the fall arrestor block 431 abuts against the connecting plate 41, the spring 44 is in a compressed state or a relaxed state. When the bottom of the probe 5 does not touch the bottom of the groove, the fall arrestor block 431 abuts against the connecting plate 41. When the bottom of the probe 5 abuts against the bottom of the groove but the piston rod of the lifting drive 3 is still extended downward, the probe 5 remains stationary, the guide rod 43 moves upward relative to the connecting plate 41, and the spring 44 is continuously compressed. In one embodiment, the probe 5 and the connecting plate 41 are detachably connected, allowing for easy replacement of the probe 5. For example, the end of the connecting plate 41 has a socket and a slot communicating with the socket. The socket and slot form a clamp-like structure. The probe 5 is inserted into the socket, and a locking bolt is fixed at the slot to retract the socket, thus fixing the probe 5 within the socket. When the probe 5 needs to be replaced, the locking bolt is loosened.

[0022] In this embodiment, when the fixing device is working, the test slot 7 is placed directly below the first position. The swing drive 6 drives the swing plate 2 to swing the probe 5 to the first position. At this time, the lifting drive 3 drives the probe 5 to move down and insert it into the test slot 7. After the probe 5 has completed the test, the probe 5 moves up and swings to the second position. At this time, the probe 5 is directly above the cleaning slot 8. When the probe 5 moves down, it can enter the cleaning slot 8 for cleaning, preparing for the next test.

[0023] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A pH meter probe fixing device, characterized in that: include Fixing plate; A swing plate is parallel to and located below the fixed plate. One end of the swing plate is pivotally connected to the fixed plate via a first shaft. The swing plate swings along the fixed plate in a horizontal plane under the drive of the swing drive component. A lifting drive component, which is fixedly connected to the swing plate and located on one side of the first shaft; The probe is connected to the output end of the lifting drive component via a floating component. The probe switches between a first position and a second position during the swinging process of the swing plate. The test tank and the cleaning tank are respectively placed below the first position and the second position.

2. The pH meter probe fixing device according to claim 1, characterized in that: The swing drive is a cylinder hinged to the fixed plate, and the piston rod of the cylinder is hinged to the end of the swing plate away from the first axis via a second axis.

3. The pH meter probe fixing device according to claim 2, characterized in that: The swing drive is fixed to the upper surface of the fixed plate, the second shaft passes through the fixed plate in a vertical direction, and the fixed plate is provided with a clearance groove to allow the second shaft to swing.

4. The pH meter probe fixing device according to claim 2, characterized in that: A guide block is fixed to the lower surface of the fixed plate, and a C-shaped guide groove is formed on the guide block. The end of the swing plate away from the first axis is embedded in the C-shaped guide groove and slides in the C-shaped guide groove.

5. The pH meter probe fixing device according to claim 1, characterized in that: The lifting drive is located in the region near the end of the swing plate away from the first axis.

6. The pH meter probe fixing device according to any one of claims 1-5, characterized in that: The floating assembly includes a connecting plate and a lifting plate located below the connecting plate. The connecting plate is connected to the output end of the lifting drive component. A guide rod is fixed on the lifting plate. The guide rod passes through the connecting plate and can move up and down along the connecting plate. A spring is sleeved on the guide rod between the connecting plate and the lifting plate.

7. The pH meter probe fixing device according to claim 6, characterized in that: A fall arrestor block is fixed on the guide rod above the connecting plate. When the fall arrestor block abuts against the connecting plate, the spring is in a compressed state or a natural state.

8. The pH meter probe fixing device according to claim 6, characterized in that: The probe and the connecting plate are detachably connected.

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