Water quality detection pen

Abstract

The utility model discloses a water quality detection pen which comprises a shell, a control circuit board, an electrode, a display screen and a fixing cover, a fixing groove is formed in the shell, and the control circuit board is arranged in the shell and located on the inner side of the fixing groove; the electrode is arranged at the bottom of the shell and is electrically connected with the control circuit board through a signal line; the display screen is arranged in the fixing cover, the fixing cover is detachably connected with the fixing groove, conductive adhesives are arranged at the positions, located at the two ends of the display screen, in the fixing cover respectively, and the display screen is electrically connected with the control circuit board through the two conductive adhesives. According to the water quality detection pen disclosed by the invention, the display screen is electrically connected with the control circuit board through the conductive adhesive, and the fixed cover is detachably connected with the shell, so that the modular design of the display screen and the control circuit board is realized, the water quality detection pen has the characteristic of quick and flexible installation, the maintainability of equipment is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, and particularly relates to a water quality detection pen. Background Art

[0002] A water quality test pen, also known as a TDS test pen or a TDS water quality test pen, is a simple and portable water quality test tool used to test the TDS value or the conductivity of water to judge the purity or pollution degree of water; as a tool for testing and discriminating water quality, the water quality detection pen can be widely used in the water treatment industry, the drinking water industry, families, personal households, tourism, field operations and other fields.

[0003] The existing water quality detection pens generally include a control circuit board, a display screen and electrodes that are electrically connected to the control circuit board respectively. The electrodes are the core part of the water quality detection pen, which are used to contact water and sense specific substances or parameters in the water. The control circuit board is responsible for processing the signals sensed by the electrodes and converting them into readable values to be displayed on the display screen, enabling users to intuitively understand the water quality situation.

[0004] In the existing water quality detection pens, the display screen is generally electrically connected to the control circuit board through a signal wire. Due to the instability and susceptibility to interference of the signal wire connection, the detection reliability of the water quality detection pen is reduced. During long-term use, problems such as unstable measurement and data drift may occur; in addition, problems such as loosening and poor contact may occur at the signal wire connection, resulting in the display screen being unable to display data normally. For non-professionals, it is difficult to check and repair the signal wire connection. That is, when the display screen fails to work properly, users usually choose to repurchase a water quality detection pen, resulting in high maintenance costs.

[0005] It can be seen that the existing technology still needs to be improved. Content of the Utility Model

[0006] In view of the deficiencies of the above-mentioned existing technology, the purpose of the utility model is to provide a water quality detection pen, which realizes the modular design of the display screen and the control circuit board, has the characteristics of quick and flexible installation, improves the maintainability of the device, and reduces the maintenance cost.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A water quality detection pen, comprising a housing, a control circuit board, electrodes and a display screen, further comprising a fixing cover. A fixing groove is formed on the housing, and the control circuit board is arranged inside the housing and located inside the fixing groove; the electrodes are arranged at the bottom of the housing and are electrically connected to the control circuit board through signal lines; the display screen is arranged inside the fixing cover, the fixing cover is detachably connected to the fixing groove, conductive adhesives are respectively arranged at both ends of the display screen inside the fixing cover, and the display screen is electrically connected to the control circuit board through the two conductive adhesives.

[0009] In the water quality detection pen described above, the fixing cover includes a bottom plate, two side plates and two limiting plates are arranged on the bottom plate. The two side plates are respectively arranged on the front side and the rear side of the bottom plate, and the two limiting plates are respectively arranged on the left side and the right side of the bottom plate; the limiting plates are U-shaped limiting plates, the U-shaped grooves of the two limiting plates face each other, a first clamping block is arranged on the outer side of the side plate, and second clamping blocks are respectively arranged on the inner walls of both sides of the housing. The second clamping blocks are located below the fixing groove, and the first clamping block is in mating connection with the second clamping block; the display screen is arranged between the two side plates, and placing grooves are formed between the left and right ends of the display screen and the two limiting plates, and the conductive adhesives are located in the placing grooves.

[0010] In the water quality detection pen described above, a limiting block is arranged at the top inside the side plate, and the limiting block is used to limit the moving position of the display screen.

[0011] In the water quality detection pen described above, the side plate located on the front side of the bottom plate includes a first fixing plate and a second fixing plate, a through groove is formed between the first fixing plate and the second fixing plate, and the first clamping blocks are respectively arranged on the outer sides of the first fixing plate and the second fixing plate.

[0012] In the water quality detection pen described above, a fixing seat and a fixing block are arranged at the bottom of the housing. The outer diameter of the fixing block is smaller than the outer diameter of the housing, and the fixing seat is located inside the fixing block; the electrode is located inside the fixing block, and one end of the electrode is fixedly connected to the fixing seat; water inlet grooves are respectively formed on both side walls of the fixing block.

[0013] In the water quality detection pen described above, a second shielding cover is further included. The outer diameter of the second shielding cover is the same as the outer diameter of the housing; a third clamping block is arranged at the top inside the second shielding cover, a fourth clamping block is arranged at the top outside the fixing block, and the third clamping block is in mating connection with the fourth clamping block.

[0014] In the described water quality detection pen, a first shielding cover is further included. A battery compartment is provided inside the top of the housing, and the battery compartment is electrically connected to the control circuit board. The outer diameter of the first shielding cover is the same as that of the housing, and the first shielding cover is detachably connected to the battery compartment.

[0015] In the described water quality detection pen, the battery compartment includes a mounting seat, a battery, and two conductive sheets. An installation plate is provided inside the mounting seat, and the installation plate is an arc-shaped installation plate. The two conductive sheets are respectively arranged inside the mounting seat and located at both ends of the installation plate. The battery is arranged on the installation plate. One ends of the two conductive sheets are respectively electrically connected to both ends of the battery, and the other ends of the two conductive sheets are electrically connected to the control circuit board. The mounting seat is detachably connected to the first shielding cover.

[0016] In the described water quality detection pen, a card slot is provided at the bottom of the outer side of the mounting seat, and a fifth clamping block is provided at the bottom of the inner side of the first shielding cover. The fifth clamping block is connected in cooperation with the card slot.

[0017] In the described water quality detection pen, a power switch is provided on the housing, and the power switch is electrically connected to the control circuit board.

[0018] Beneficial effects:

[0019] The utility model provides a water quality detection pen. The display screen is electrically connected to the control circuit board through conductive glue, and the fixing cover is detachably connected to the housing, realizing the modular design of the display screen and the control circuit board, having the characteristics of quick and flexible installation, and improving the maintainability of the device. When the display screen has a damage problem, only the display screen can be replaced, reducing the maintenance cost. Description of the drawings

[0020] Figure 1 It is a schematic structural diagram of the water quality detection pen provided by the utility model;

[0021] Figure 2 It is a schematic structural diagram of the fixing cover provided by the utility model;

[0022] Figure 3 It is a first schematic structural diagram of the water quality detection pen provided by the utility model after removing the first shielding cover and the second shielding cover;

[0023] Figure 4 It is a second schematic structural diagram of the water quality detection pen provided by the utility model after removing the first shielding cover and the second shielding cover.

[0024] Description of main component symbols: 1 - housing, 2 - display screen, 3 - fixing cover, 31 - bottom plate, 32 - side plate, 321 - first clamping block, 322 - limiting block, 33 - limiting plate, 34 - first fixing plate, 35 - second fixing plate, 36 - through groove, 41 - fixing seat, 42 - fixing block, 421 - water inlet groove, 422 - fourth clamping block, 5 - second shielding cover, 6 - first shielding cover, 71 - mounting seat, 711 - card slot, 72 - conductive sheet, 73 - mounting plate, 8 - power button. Detailed implementation

[0025] The present utility model provides a water quality detection pen. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further elaborates on the present utility model with reference to the accompanying drawings and by way of examples.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "front", "rear", "left", "right", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and should not be construed as a limitation to the present utility model; in addition, terms such as "installation" and "connection" should be understood in a broad sense, and for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Please refer to Figures 1 to 4 , the present utility model provides a water quality detection pen, including a housing 1, a control circuit board, an electrode, a display screen 2 and a fixing cover 3. A fixing groove is provided on the housing 1, and the control circuit board is arranged inside the housing 1 and located inside the fixing groove; the electrode is arranged at the bottom of the housing 1 and is electrically connected to the control circuit board through a signal wire; the display screen 2 is arranged inside the fixing cover 3, the fixing cover 3 is detachably connected to the fixing groove, conductive adhesives are respectively arranged at both ends of the display screen 2 inside the fixing cover 3, and the display screen 2 is electrically connected to the control circuit board through the two conductive adhesives.

[0028] The present application discloses a water quality detection pen. The display screen 2 is electrically connected to the control circuit board through a conductive adhesive, and the fixing cover 3 is detachably connected to the housing 1, realizing a modular design of the display screen 2 and the control circuit board, with the characteristics of quick and flexible installation, and improving the maintainability of the device. When the display screen 2 has a damage problem, only the fixing cover 3 needs to be disassembled and the display screen 2 can be replaced separately, reducing the maintenance cost and saving maintenance time.

[0029] In this embodiment, the control circuit board, the electrode, and the display screen 2 are the control circuit board, the electrode, and the display screen 2 of an existing water quality detection pen, that is, the control circuit board, the electrode, and the display screen 2 are all prior art; the conductive adhesive is prior art, and the conductive adhesive is an adhesive with conductive properties, which is usually composed of conductive fillers, matrix resins, dispersants, and additives, etc.; the conductive fillers endow the conductive adhesive with conductive properties, and common conductive fillers include silver powder, copper powder, nickel powder, carbon black, etc.; the matrix resin acts as an adhesive to bond the conductive fillers together to form a conductive path; the dispersants and additives are used to improve the processing performance and storage stability of the conductive adhesive.

[0030] Further, please refer to Figure 2 , the fixed cover 3 includes a bottom plate 31, and two side plates 32 and two limiting plates 33 are provided on the bottom plate 31. The two side plates 32 are respectively arranged on the front side and the rear side of the bottom plate 31, and the two limiting plates 33 are respectively arranged on the left side and the right side of the bottom plate 31; the limiting plate 33 is a U-shaped limiting plate 33, and the U-shaped grooves of the two limiting plates 33 face each other. A first clamping block 321 is arranged on the outer side of the side plate 32, and second clamping blocks are respectively arranged on the inner walls of the two sides of the housing 1. The second clamping blocks are located below the fixed slots, and the first clamping block 321 is connected with the second clamping blocks in a matching manner; the display screen 2 is arranged between the two side plates 32, and placing grooves are formed between the left and right ends of the display screen 2 and the two limiting plates 33, and the conductive adhesive is located in the placing grooves.

[0031] In this embodiment, the bottom plate 31, the side plates 32, and the limiting plates 33 are integrally formed, the first clamping block 321 is integrally formed with the side plate 32, and the second clamping block is integrally formed with the housing 1; through the mutual buckling of the first clamping block 321 and the second clamping block, the detachable connection between the side plate 32 and the inner wall of the housing 1 is realized.

[0032] Further, please refer to Figure 2 , a limiting block 322 is arranged at the inner top of the side plate 32, and the limiting block 322 is used to limit the moving position of the display screen 2.

[0033] In this embodiment, the limiting block 322 is integrally formed with the side plate 32; by arranging the limiting block 322, the stability and safety of the display screen 2 during use can be ensured, so that when the display screen 2 moves or adjusts the angle, it will not exceed the predetermined range, avoiding damage or displacement of the display screen 2 caused by misoperation or external force.

[0034] Further, please refer to Figure 2, the side plate 32 located on the front side of the bottom plate 31 includes a first fixing plate 34 and a second fixing plate 35. A through groove 36 is formed between the first fixing plate 34 and the second fixing plate 35. The first clamping blocks 321 are respectively arranged on the outer sides of the first fixing plate 34 and the second fixing plate 35.

[0035] In this embodiment, the display screen 2 is adhesively bonded to the fixing cover 3. When the display screen 2 is pressed to ensure it remains flat, that is, parallel to the bottom plate 31, part of the fixing glue overflows outward through the through groove 36 formed between the first fixing plate 34 and the second fixing plate 35, achieving the function of pressure relief and ensuring the normal progress of the pressing operation.

[0036] Further, please refer to Figure 3 , a fixing seat 41 and a fixing block 42 are arranged at the bottom of the housing 1. The outer diameter of the fixing block 42 is smaller than the outer diameter of the housing 1. The fixing seat 41 is located inside the fixing block 42; the electrode is located inside the fixing block 42, and one end of the electrode is fixedly connected to the fixing seat 41; water inlet grooves 421 are respectively formed on the two side walls of the fixing block 42.

[0037] In this embodiment, the fixing seat 41 and the fixing block 42 are integrally formed with the housing 1 respectively, and the electrode is adhesively bonded to the fixing seat 41 to ensure the sealing performance of the fixing seat 41, prevent water from entering the interior of the housing 1 from the connection between the fixing seat 41 and the motor, and improve the stability and reliability of the water quality detection pen during operation.

[0038] In this embodiment, there are two electrodes, and two corresponding fixing seats 41 are provided.

[0039] Further, please refer to Figure 1 and Figure 3 , the water quality detection pen further includes a second shielding cover 5. The outer diameter of the second shielding cover 5 is the same as the outer diameter of the housing 1; a third clamping block is arranged at the inner top of the second shielding cover 5, and a fourth clamping block 422 is arranged at the outer top of the fixing block 42. The third clamping block is cooperatively connected with the fourth clamping block 422.

[0040] In this embodiment, the third clamping block is integrally formed with the second shielding cover 5, and the fourth clamping block 422 is integrally formed with the fixing block 42; the detachable connection between the second shielding cover 5 and the fixing block 42 is realized by the mutual clamping of the third clamping block and the fourth clamping block 422; when water quality detection is required, the second shielding cover 5 is removed, the fixing block 42 is placed in the water to be detected, and the water source enters the inside of the fixing block 42 through the water inlet groove 421 and contacts the electrode, and the electrode detects different water quality parameters and feeds them back to the control circuit board; when the water quality detection is completed, the second shielding cover 5 is closed to protect the electrode in the fixing block 42, prevent moisture, dust or other impurities from entering the electrode area, and ensure the stability and accuracy of the electrode.

[0041] In this embodiment, third clamping blocks are arranged at the tops of the four inner side walls of the second shielding cover 5, and fourth clamping blocks 422 are arranged at the tops of the four outer side walls of the fixing block 42. By the clamping connection of the four third clamping blocks and the four fourth clamping blocks 422, the connection stability between the second shielding cover 5 and the fixing block 42 can be improved.

[0042] Further, please refer to Figure 1 and Figure 4 , the water quality detection pen further includes a first shielding cover 6. A battery compartment is arranged inside the top of the housing 1, and the battery compartment is electrically connected to the control circuit board; the outer diameter of the first shielding cover 6 is the same as the outer diameter of the housing 1, and the first shielding cover 6 is detachably connected to the battery compartment.

[0043] In this embodiment, the battery compartment is used to provide power for the operation of the water quality detection pen; when battery replacement is required, the first shielding cover 6 is removed, the battery is taken out and replaced, and then the first shielding cover 6 is closed to protect the battery compartment, prevent moisture, dust or other impurities from entering the inner area of the battery compartment, and ensure the stability and reliability of the battery compartment during operation.

[0044] In this embodiment, the outer diameters of the first shielding cover 6, the second shielding cover 5 and the housing 1 are the same. When the first shielding cover 6 and the second shielding cover 5 are closed, the side of the water quality detection pen is straight, improving the aesthetic degree of the water quality detection pen.

[0045] Further, please refer to Figure 4, the battery compartment includes a mounting base 71, a battery, and two conductive sheets 72. An installation plate 73 is provided inside the mounting base 71. The installation plate 73 is an arc-shaped installation plate, which can effectively wrap and support the battery. The two conductive sheets 72 are respectively arranged inside the mounting base 71 and are located at both ends of the installation plate 73. The battery is arranged on the installation plate 73. One ends of the two conductive sheets 72 are respectively electrically connected to both ends of the battery, and the other ends of the two conductive sheets 72 are electrically connected to the control circuit board. The mounting base 71 is detachably connected to the first shielding cover 6.

[0046] In this embodiment, the installation plate 73 and the mounting base 71 are integrally formed, the mounting base 71 and the housing 1 are integrally formed, and one end of the conductive sheet 72 electrically connected to the battery is fixedly connected to the inner wall of the mounting base 71.

[0047] During the actual working process, one ends of the two conductive sheets 72 are electrically connected to both ends of the battery, ensuring that the current generated by the battery can be smoothly transmitted to the conductive sheets 72. The other ends of the conductive sheets 72 are electrically connected to the control circuit board, realizing the electrical connection between the battery and the control circuit board, enabling the electric energy provided by the battery to supply power to the control circuit board.

[0048] Further, please refer to Figure 4 , a card slot 711 is provided at the bottom of the outer side of the mounting base 71, and a fifth clamping block is provided at the bottom of the inner side of the first shielding cover 6. The fifth clamping block is in fit connection with the card slot 711.

[0049] In this embodiment, card slots 711 are respectively provided at the bottoms of any two outer walls of the mounting base 71, and fifth clamping blocks are correspondingly provided at the bottoms of any two inner walls of the first shielding cover 6. The fifth clamping block is integrally formed with the shielding cover. Through the clamping connection between the fifth clamping block and the card slot 711, the detachable connection between the first shielding cover 6 and the mounting base 71 is realized.

[0050] Further, please refer to Figure 1 , a power switch 8 is provided on the housing 1, and the power switch 8 is electrically connected to the control circuit board.

[0051] In this embodiment, the power switch 8 is used to control the switch function of the water quality detection pen, allowing the user to start or stop the detection process. A special clamping structure can be provided on the housing 1, and the power switch 8 is connected to the housing 1 through a clamp, which facilitates the installation and disassembly of the power switch 8 and reduces the difficulty of maintenance and repair.

[0052] It is understandable that those of ordinary skill in the art can make equivalent substitutions or changes based on the technical solution of the present utility model and its inventive concept, and all such changes or substitutions shall fall within the protection scope of the present utility model.

Claims

1. A water quality detection pen, comprising a housing, a control circuit board, electrodes and a display screen, characterized in that, It further includes a fixing cover. A fixing groove is formed on the housing, and the control circuit board is arranged inside the housing and located inside the fixing groove. The electrode is arranged at the bottom of the housing and is electrically connected to the control circuit board through a signal wire. The display screen is arranged inside the fixing cover. The fixing cover is detachably connected to the fixing groove. Conductive adhesives are respectively arranged at both ends of the display screen inside the fixing cover, and the display screen is electrically connected to the control circuit board through the two conductive adhesives.

2. The water quality detection pen according to claim 1, characterized in that, The fixing cover includes a bottom plate. Two side plates and two limiting plates are arranged on the bottom plate. The two side plates are respectively arranged on the front side and the rear side of the bottom plate, and the two limiting plates are respectively arranged on the left side and the right side of the bottom plate. The limiting plates are U-shaped limiting plates, and the U-shaped grooves of the two limiting plates face each other. First clamping blocks are arranged on the outer sides of the side plates, and second clamping blocks are respectively arranged on the inner walls of both sides of the housing. The second clamping blocks are located below the fixing groove, and the first clamping blocks are connected in cooperation with the second clamping blocks. The display screen is arranged between the two side plates, and placement grooves are formed between the left and right ends of the display screen and the two limiting plates. The conductive adhesives are located in the placement grooves.

3. The water quality detection pen according to claim 2, characterized in that, A limiting block is arranged at the inner top of the side plate, and the limiting block is used for limiting the moving position of the display screen.

4. A water quality detection pen according to claim 2, characterized in that, The side plate located at the front side of the bottom plate includes a first fixing plate and a second fixing plate. A through groove is formed between the first fixing plate and the second fixing plate, and the first clamping blocks are respectively arranged on the outer sides of the first fixing plate and the second fixing plate.

5. A water quality detection pen according to claim 1, characterized in that, A fixing seat and a fixing block are arranged at the bottom of the housing. The outer diameter of the fixing block is smaller than the outer diameter of the housing, and the fixing seat is located inside the fixing block. The electrode is located inside the fixing block, and one end of the electrode is fixedly connected to the fixing seat. Water inlet grooves are respectively formed on the two side walls of the fixing block.

6. A water quality detection pen according to claim 5, characterized in that, It further includes a second shielding cover, and the outer diameter of the second shielding cover is the same as the outer diameter of the housing. A third clamping block is arranged at the inner top of the second shielding cover, and a fourth clamping block is arranged at the outer top of the fixing block. The third clamping block is connected in cooperation with the fourth clamping block.

7. A water quality detection pen according to claim 1, characterized in that, It further includes a first shielding cover. A battery compartment is arranged inside the top of the housing, and the battery compartment is electrically connected to the control circuit board. The outer diameter of the first shielding cover is the same as the outer diameter of the housing, and the first shielding cover is detachably connected to the battery compartment.

8. A water quality detection pen according to claim 7, characterized in that, The battery compartment includes a mounting seat, a battery and two conductive sheets. A mounting plate is arranged inside the mounting seat, and the mounting plate is an arc-shaped mounting plate. The two conductive sheets are respectively arranged inside the mounting seat and located at both ends of the mounting plate. The battery is arranged on the mounting plate. One ends of the two conductive sheets are respectively electrically connected to both ends of the battery, and the other ends of the two conductive sheets are electrically connected to the control circuit board. The mounting seat is detachably connected to the first shielding cover.

9. A water quality detection pen according to claim 8, characterized in that, A card slot is arranged at the outer bottom of the mounting seat, and a fifth clamping block is arranged at the inner bottom of the first shielding cover. The fifth clamping block is connected in cooperation with the card slot.

10. A water quality detection pen according to claim 1, characterized in that, A power key is provided on the housing, and the power key is electrically connected to the control circuit board.

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