Portable water balance tester

Abstract

The utility model relates to the technical field of environmental monitoring, and discloses a portable water balance tester, which comprises a shell, a plurality of interfaces are fixedly connected to the middle lower part of the front side of the shell, outer cylinders are fixedly connected to the left sides of the inner walls of the interfaces, inner cylinders are slidably connected to the inner walls of the outer cylinders, and the inner cylinders are fixedly connected to the left sides of the inner walls of the interfaces. Clamping blocks are fixedly connected to the bottom ends of the multiple inner cylinders, first springs are fixedly connected to the tops of the multiple clamping blocks, shifting grooves are formed in the right sides of the multiple clamping blocks, rotating grooves are formed in the bottoms of the multiple connectors, and rotating shafts are fixedly connected to the middles of the inner walls of the multiple connectors; and the outer walls of the multiple rotating shafts are rotationally connected with shifting plates. According to the water balance tester, after the plug is inserted in place, the spring I pushes the clamping block to be clamped into the clamping groove to complete locking, and the button is pressed during disassembly to drive the pressing roller and the shifting plate to act to enable the clamping block to be separated from the clamping groove, so that the convenience of the water balance tester is realized, and the operation complexity and the cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, and in particular to a portable water balance tester. Background Technology

[0002] Water balance testing is an important part of water conservancy projects and environmental monitoring, used to assess the efficiency and distribution of water resources. With the increasing severity of water shortages, water balance testing has become particularly important. Currently, there are various water balance testing devices on the market, but these devices are bulky and complex to operate, making it difficult to meet the needs of portability and real-time monitoring.

[0003] A search revealed Chinese Patent Publication No. CN215064686U, which discloses a water balance testing device and its usage method. The device includes a connecting shell, which is tubular in shape. A testing sampling rod is arranged radially along the middle of the connecting shell, with one end located on the shell and the other end inside. The testing sampling rod is an insulated tubular structure with multiple fan blades evenly rotating at its ends, the rotation plane of which is perpendicular to the length of the rod. A pair of magnetic poles of a magnet are located at the roots of two opposing fan blades. A U-shaped coil is arranged along the length of the testing sampling rod. A flow meter is located outside the connecting shell, with both ends of the U-shaped coil connected to the two electrode terminals of the flow meter. A sampling cylinder is placed inside the testing sampling rod. A sealing valve is located at one end of the testing sampling rod in the connecting shell. This device simplifies the sampling process and reduces errors. However, in practical use, the testing process is complex, requires professional personnel, and is not easily movable. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a portable water balance tester, which aims to improve the problems of complex testing processes, the need for professional personnel to operate, and the inconvenience of movement in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a portable water balance tester, comprising a shell, a plurality of interfaces fixedly connected to the lower middle part of the front side of the shell, an outer cylinder fixedly connected to the left side of the inner wall of each of the plurality of interfaces, an inner cylinder slidably connected to the inner wall of each of the plurality of outer cylinders, a locking block fixedly connected to the bottom of each of the plurality of inner cylinders, a spring fixedly connected to the top of each of the plurality of locking blocks, a slot provided on the right side of each of the plurality of locking blocks, a rotating groove provided at the bottom of each of the plurality of interfaces, a rotating shaft fixedly connected to the middle of the inner wall of each of the plurality of interfaces, a lever rotatably connected to the outer wall of each of the plurality of rotating shafts, a button shell fixedly connected to the top right side of each of the plurality of interfaces, a button slidably connected to the inner wall of each of the plurality of button shells, a spring fixedly connected to the right side of the inner wall of each of the plurality of interfaces, a pressure roller fixedly connected to the bottom of each of the plurality of buttons, a plug slidably connected to the front side of each of the plurality of interfaces, a locking groove provided on the top left side of each of the plurality of plugs, and a fixing mechanism provided on the rear side of the outer wall of the shell.

[0006] The above technical solution constructs a convenient sensor connection system. The structure at the interface enables quick and secure plug insertion and removal, facilitating sensor replacement and maintenance and improving the ease of use of the tester. Meanwhile, the rear fixing mechanism provides the possibility of fixing the tester in different scenarios.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes two fixing blocks. The outer walls of the two fixing blocks are fixedly connected to the middle of the rear side of the outer wall of the outer shell. Straps are fixedly connected to the outer walls of the two fixing blocks on opposite sides. A retaining clip is fixedly connected to the outer wall of the left strap, and a scroll is fixedly connected to the outer wall of the right strap. A bottom block is rotatably connected to the bottom of the scroll, and a top block is provided at the top of the scroll. The bottom of the top block is slidably connected to the inner wall of the scroll, and a knob is fixedly connected to the top of the top block.

[0009] The above technical solution enables the tester to be firmly fixed on the water pipe, adapting to different pipe diameters. The fixing process is simple to operate, and the straps can be tightened and fixed by turning the knob, which enhances the stability of the tester during the testing process.

[0010] As a further description of the above technical solution:

[0011] A transmission block is fixedly connected to the rear side of the outer wall of each of the plugs, and two rotating bases are fixedly connected to the top of the housing.

[0012] Through the above technical solution: the transmission block ensures stable data transmission between the plug and the internal circuit of the interface, ensuring that the data collected by the sensor can be accurately transmitted to the main body of the tester; the rotatable base provides a basis for the installation of the handle, making it convenient for the handle to achieve portability later.

[0013] As a further description of the above technical solution:

[0014] The inner walls of both rotating bases are rotatably connected to the same handle, and a display screen is fixedly connected to the front left side of the outer casing.

[0015] The above technical solution improves the portability of the tester by providing a handle, allowing operators to easily lift the tester and move it to different testing locations. The display screen visually shows measurement data, test results, and instrument status information, making it convenient for users to read.

[0016] As a further description of the above technical solution:

[0017] Each of the plugs has a transmission line fixedly connected to its front side, and each of the transmission lines has a sensor fixedly connected to its front end.

[0018] The above technical solution connects the sensor to the plug via a transmission line, enabling the data collected by the sensor to be transmitted to the plug and then to the main body of the tester, ensuring that the sensor can effectively collect and transmit various types of data required for the water balance test.

[0019] As a further description of the above technical solution:

[0020] Multiple buttons are fixedly connected to the front right side of the housing, and multiple heat dissipation holes are provided on both the left and right sides of the housing.

[0021] The above technical solution provides users with an input method for operation, making it convenient for users to control the tester. The heat dissipation holes promote air circulation, effectively dissipating the heat generated by the internal electronic components of the tester and ensuring stable operation of the instrument.

[0022] As a further description of the above technical solution:

[0023] A nameplate is fixedly connected to the right side of the outer casing, and positioning pins are fixedly connected to all four sides of the outer wall of the nameplate.

[0024] Through the above technical solution: the nameplate marks the key information of the tester, making it convenient for users to understand the product, and the positioning pin ensures that the nameplate is firmly installed, preventing it from loosening or falling off during use.

[0025] As a further description of the above technical solution:

[0026] Multiple anti-slip strips are fixedly connected to the rear side of the outer shell, and cushioning pads are fixedly connected to the bottom of the outer shell around its perimeter.

[0027] The above technical solutions achieve the following: the anti-slip strip increases the friction between the tester and the placement surface, preventing slippage during placement and ensuring the stability of the instrument; the buffer pad provides cushioning and shock absorption during instrument placement, reducing damage to internal components caused by placement collisions.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, after the plug is inserted into place, the spring pushes the locking block into the slot to complete the locking. When disassembling, pressing the button will drive the pressure roller and the lever to disengage the locking block from the slot, which realizes the convenience of the water balance tester, reduces the complexity and cost of operation. The automatic locking and easy unlocking operation makes the sensor installation and disassembly easy and efficient, without the need for complicated operation and professional skills, thus reducing time and labor costs.

[0030] 2. In this utility model, the strap in the fixing mechanism can wrap around the outer wall of water pipes of different diameters. Combined with the flexible locking method of the clip and the bottom block, as well as the unique rotation and tightening design of the top block and the roller, the strap can be tightly wrapped on water pipes of different diameters. This makes the fixing mechanism adaptable to water pipes of different diameters and shapes, effectively expanding the application range of the tester. Attached Figure Description

[0031] Figure 1 This is a perspective view of a portable water balance tester proposed in this utility model;

[0032] Figure 2 This is a rear view of a portable water balance tester proposed in this utility model;

[0033] Figure 3 This is a partial structural exploded view of a portable water balance tester proposed in this utility model;

[0034] Figure 4 This is a partial structural schematic diagram of a portable water balance tester proposed in this utility model;

[0035] Figure 5 This is an exploded view of the fixing mechanism of a portable water balance tester proposed in this utility model;

[0036] Figure 6 This is a partial structural cross-sectional view of a portable water balance tester proposed in this utility model.

[0037] Legend:

[0038] 1. Outer shell; 2. Fixing mechanism; 201. Fixing block; 202. Strap; 203. Locking case; 204. Reel; 205. Bottom block; 206. Top block; 207. Knob; 3. Interface; 4. Outer cylinder; 5. Inner cylinder; 6. Spring 1; 7. Locking block; 8. Slot; 9. Rotary slot; 10. Shaft; 11. Toggle plate; 12. Button housing; 13. Button; 14. Spring 2; 15. Pressure roller; 16. Plug; 17. Locking slot; 18. Transmission block; 19. Rotary base; 20. Handle; 21. Display screen; 22. Transmission line; 23. Sensor; 24. Button; 25. Heat dissipation hole; 26. Nameplate; 27. Positioning pin; 28. Anti-slip strip; 29. ​​Buffer pad. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] See attached document Figure 1 Appendix Figure 3 and attached Figure 4This utility model provides an embodiment of a portable water balance tester, comprising a housing 1 for protecting internal components and providing overall support. Multiple interfaces 3 are fixedly connected to the lower front side of the housing 1, providing connection positions for a plug 16 to connect a sensor 23 to the main body of the tester. An outer cylinder 4 is fixedly connected to the left side of the inner wall of each of the multiple interfaces 3, providing a sliding track for an inner cylinder 5 and serving a protective function. An inner cylinder 5 is slidably connected to the inner wall of each of the multiple outer cylinders 4, allowing the inner cylinder 5 to slide within the outer cylinders 4, moving a locking block 7 to achieve the locking and unlocking function of the plug 16. A locking block 7 is fixedly connected to the bottom of each of the multiple inner cylinders 5, used to engage the plug 16. Within the slot 17, the plug 16 is fixed. A spring 6 is fixedly connected to the top of each of the multiple locking blocks 7, providing elastic force to allow them to automatically engage or disengage from the slot 17. A slot 8 is provided on the right side of each of the multiple locking blocks 7, engaging with a lever 11 to move the locking block 7 upwards. A rotating groove 9 is provided at the bottom of each of the multiple interfaces 3, providing space for the lever 11 to rotate. A rotating shaft 10 is fixedly connected to the center of the inner wall of each of the multiple interfaces 3, serving as the axis of rotation for the lever 11. Lever 11s are rotatably connected to the outer walls of the multiple rotating shafts 10, engaging with the slots 8 of the locking blocks 7 through rotation, thus driving the locking blocks... Block 7 moves upward, releasing the locking state of plug 16. A button housing 12 is fixedly connected to the top right side of each of the multiple interfaces 3. The button housing 12 provides a sliding track for button 13 and protects its internal structure. Buttons 13 are slidably connected to the inner walls of the multiple button housings 12. Buttons 13 are used to trigger the rotation of the toggle plate 11, unlocking plug 16. Springs 14 are fixedly connected to the right side of the inner walls of each of the multiple interfaces 3. Springs 14 provide elastic restoring force to button 13, allowing it to reset after being pressed. Pressing rods 15 are fixedly connected to the bottom of each of the multiple buttons 13. Pressing rods 15 are used to press down on the toggle plate 11, causing it to rotate around the pivot 10. Plugs 16 are slidably connected to the front side of each of the multiple interfaces 3. Plugs 16 are used to connect to the transmission... Sensor 23 and interface 3 enable data transmission. Each of the multiple plugs 16 has a slot 17 on the top left side. The slot 17 cooperates with the card block 7 to lock the plug 16. Each of the multiple plugs 16 has a transmission block 18 fixedly connected to the rear side of its outer wall. The transmission block 18 is used to interface with the internal circuit structure of interface 3 to transmit the data collected by sensor 23. Each of the multiple plugs 16 has a transmission line 22 fixedly connected to its front side. The transmission line 22 is used to connect the plug 16 and sensor 23 to transmit the signal collected by sensor 23. Each of the multiple transmission lines 22 has a sensor 23 fixedly connected to its front end. The sensor 23 is used to collect parameters related to water balance testing. A fixing mechanism 2 is provided on the rear side of the outer wall of the outer shell 1.

[0041] Specifically, spring 6 and spring 14 are always in a compressed state. When plug 16 is inserted into interface 3, the bottom of the locking block 7 slides on the top inclined surface of plug 16. As the locking block 7 gradually moves upward, spring 6 gradually compresses, and the inner cylinder 5 slides upward inside the outer cylinder 4. When plug 16 is fully inserted, locking block 7 is engaged in slot 17. When plug 16 needs to be removed, button 13 is pressed down. Button 13 slides down on the inner wall of button housing 12, compressing spring 14. The pressure roller 15 at the bottom of button 13 moves down simultaneously, pressing down the right side of dial plate 11. Dial plate 11 rotates around pivot 10, and its left side engages in dial groove 8, lifting locking block 7 upward to move it away from slot 17. At this time, spring 6 is compressed. After plug 16 is pulled out, spring 6 presses locking block 7 down, and spring 14 pushes button 13 back to its original position.

[0042] See attached document Figure 2 Appendix Figure 5 and attached Figure 6 The fixing mechanism 2 includes two fixing blocks 201. The outer walls of the two fixing blocks 201 are fixedly connected to the middle of the rear side of the outer wall of the outer shell 1. The two fixing blocks 201 provide a connection base for the strap 202. Straps 202 are fixedly connected to the outer walls of the two fixing blocks 201 on opposite sides. Straps 202 are used to wrap around the water pipe to connect the tester to the water pipe. A retaining clip 203 is fixedly connected to the outer wall of the left strap 202. The retaining clip 203 is used to cooperate with the bottom block 205 and the top block 206 to fix the connection position of the strap 202. A reel 204 is fixedly connected to the outer wall of the right strap 202. The reel 204 is used to wind the strap 202 to achieve the connection of the strap 202. For tightening and fixing 02, a bottom block 205 is rotatably connected to the bottom of the scroll 204. The bottom block 205 is used to engage with the retainer 203 and provide support for the rotation of the scroll 204. A top block 206 is provided at the top of the scroll 204. The top block 206 is used to cooperate with the knob 207 to drive the scroll 204 to rotate, thereby tightening the strap 202. The bottom of the top block 206 is slidably connected to the inner wall of the scroll 204, so that the top block 206 can move up and down inside the scroll 204 to adjust the tightness of the strap 202. The top of the top block 206 is fixedly connected to the knob 207. The knob 207 makes it convenient for the operator to rotate the top block 206, thereby controlling the rotation of the scroll 204.

[0043] Specifically, when fixing the tester outside the water pipe, wrap the two straps 202 around the outer wall of the water pipe. First, remove the upper retaining ring of the retaining case 203 from the side plate. Then, insert the bottom block 205 into the lower retaining ring of the retaining case 203. Next, slide the upper retaining ring of the retaining case 203 onto the top block 206 and insert it into the side plate. Then, move the top block 206 upwards until it slides out of the retaining case 203. At this time, the scroll 204 is engaged with the inner wall of the bottom block 205, and the top block 206... The bottom slides upward on the inner wall of the scroll 204. Turning the knob 207 causes the top block 206 to rotate. At this time, the plate-like structure at the bottom of the top block 206 engages with the inner wall of the scroll 204, causing the scroll 204 to rotate on the inner wall of the bottom block 205. During the rotation of the scroll 204, the strap 202 gradually winds and tightens. After tightening, the top block 206 is inserted into the upper retaining ring of the retaining case 203, thus firmly installing the tester on the surface of the water pipe.

[0044] See attached document Figure 1 and attached Figure 2 Two rotating bases 19 are fixedly connected to the top of the outer casing 1. The rotating bases 19 provide rotational support points for the handles 20. The same handle 20 is rotatably connected to the inner wall of both rotating bases 19. The handles 20 make it easy for operators to hold and carry the testing instrument, improving its portability. A display screen 21 is fixedly connected to the front left side of the outer casing 1. The display screen 21 is used to intuitively display the measurement data, working status, and related parameter information of the testing instrument for easy viewing by the operator. Multiple buttons 24 are fixedly connected to the front right side of the outer casing 1. The buttons 24 are used by the operator to input commands to control the functions of the testing instrument. Multiple heat dissipation holes 25 are opened on both the left and right sides of the outer casing 1. The heat dissipation holes 25 can promote air circulation and effectively dissipate heat from the inside of the testing instrument. The heat generated by the operation of the electronic components ensures the stable operation of the internal components. A nameplate 26 is fixedly connected to the right side of the outer casing 1. The nameplate 26 is used to identify key information of the tester, so that users can understand the relevant information of the product. Positioning pins 27 are fixedly connected to the outer walls of the nameplate 26. The positioning pins 27 ensure that the nameplate 26 is firmly installed and prevents it from loosening or falling off. Multiple anti-slip strips 28 are fixedly connected to the rear side of the outer casing 1. The anti-slip strips 28 increase the friction between the tester and the placement surface, prevent the tester from sliding when placed, and ensure the stability during use. Buffer pads 29 are fixedly connected to the bottom of the outer casing 1. The buffer pads 29 play a role in cushioning and shock absorption when the tester is placed, reducing the damage to the internal components caused by placement collisions.

[0045] Specifically, the combination of the top rotating base 19 and the handle 20 makes the tester easy to carry and adaptable to different testing scenarios. The display screen 21 clearly presents measurement data, working status, and parameters, making the operation results readily apparent. The buttons 24 provide users with a way to input commands, realize function control, and facilitate convenient interaction. The heat dissipation holes 25 on both sides solve the heat dissipation problem of internal components, ensuring stable operation of the instrument and extending its service life. The nameplate 26 on the right side, with the positioning pin 27, not only clearly marks key information but also ensures the stable position of the nameplate 26. The anti-slip strip 28 on the rear side and the bottom buffer pad 29 prevent slippage and reduce collision damage when placed, respectively, providing all-round protection for the tester and providing a solid foundation for the smooth conduct of water balance testing.

[0046] Working principle: When connecting sensor 23 to the portable water balance tester, the operator holds plug 16 and aligns it with interface 3 on the lower front side of housing 1. Springs 6 and 14 are always compressed. When plug 16 begins to be inserted into interface 3, the bottom of locking block 7 first contacts the inclined surface at the top of plug 16. As plug 16 continues to penetrate into interface 3, locking block 7 gradually moves upward under the action of the inclined surface. During this process, spring 6, which is fixedly connected to the top of locking block 7, is further compressed. At the same time, inner cylinder 5 slides upward on the inner wall of outer cylinder 4. When plug 16 is fully inserted into interface 3, slot 17 moves directly below locking block 7. At this moment, the compressed spring 6 quickly releases its elastic potential energy, pushing the locking block 7 downwards and locking it into the slot 17. Thus, the plug 16 is firmly fixed in the interface 3. Simultaneously, the transmission block 18 on the rear side of the outer wall of the plug 16 is tightly connected to the corresponding circuit structure inside the interface 3, thereby completing the installation process of the sensor 23. When it is necessary to remove the sensor 23 from the tester, the operator only needs to press down on the button 13. The button 13 will slide downwards on the inner wall of the button housing 12. During this process, the spring 14 will be further compressed. As the button 13 moves downwards, the pressure roller 15 fixedly connected to its bottom will also move downwards simultaneously. As the pressure roller 15 moves downward, it presses down the right side of the lever 11. Since the lever 11 is rotatably connected to the middle of the inner wall of the interface 3 via the rotating shaft 10, the lever 11 will start to rotate around the rotating shaft 10. During the rotation, the left side of the lever 11 will gradually engage with the slot 8 on the right side of the locking block 7. As the lever 11 continues to rotate, its left side will lift the locking block 7 upward, causing the locking block 7 to overcome the elastic force of the spring 6 and move upward, eventually disengaging from the slot 17. At this time, the spring 6 is compressed again, and the locking state between the plug 16 and the interface 3 is released. The operator can then pull the plug 16 out of the interface 3, thus completing the sensor 23. Disassembly: After unplugging plug 16, the previously compressed spring 1 6 will immediately release its elastic potential energy, pressing the locking block 7 to move downward. The locking block 7 will drive the inner cylinder 5 to slide downward on the inner wall of the outer cylinder 4 until it returns to its initial position. At the same time, the previously further compressed spring 2 14 will also release its elastic potential energy, pushing the button 13 upward back to its original position. When the button 13 moves upward, the pressure roller 15 will also move upward in sync. The lever 11 loses the pressure of the pressure roller 15. When the locking block 7 moves downward, the top of its inner wall presses the top of the left side of the lever 11, causing it to rotate in the opposite direction around the pivot 10 and return to its initial state. The entire connection structure is reset, ready for the next installation of the sensor 23.

[0047] Furthermore, when it is necessary to fix the water balance tester outside the water pipe, the fixing mechanism 2 plays a crucial role. First, the two straps 202 are wrapped around the outer wall of the water pipe. The retaining shell 203 has a special structure with a retaining ring at the top. The operator needs to remove this upper retaining ring from the side plate first, and then insert the bottom block 205 from top to bottom into the lower retaining ring of the retaining shell 203. The bottom block 205 is fixed to the bottom of the scroll 204, which is connected to the right strap 202. The shape and size of the bottom block 205 are designed to fit perfectly into the lower retaining ring of the retaining shell 203. Next, the upper retaining ring of the retaining shell 203 is inserted from the top of the top block 206 and then inserted into the side plate. The top block 206 fits tightly with the scroll 204, and its bottom can slide freely on the inner wall of the scroll 204. At this time, the scroll 204 is already engaged with the inner wall of the bottom block 205. After 206 moves upward until it slides out of the housing 203, when the knob 207 is turned, the knob 207 will drive the top block 206 to rotate. Because the bottom of the top block 206 has a special plate-like structure, during the rotation, this plate-like structure will engage with the inner wall of the scroll 204. The rotation of the top block 206 will drive the scroll 204 to rotate on the inner wall of the bottom block 205. As the scroll 204 rotates, the strap 202 will gradually wind and tighten. Because the right strap 202 is connected to the scroll 204, when the scroll 204 rotates, it will continuously wind the strap 202 around the scroll 204, thereby gradually tightening the two straps 202 around the outer wall of the water pipe, and firmly fixing the tester to the water pipe. When the strap 202 is tightened to a suitable degree, the top block 206 is locked back into the upper retaining ring of the housing 203 to prevent the strap 202 from loosening during the test.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable water balance tester comprising a housing (1) characterised in that: The lower part of the front side of the shell (1) is fixedly connected with a plurality of interfaces (3), the inner wall left side of each of the plurality of interfaces (3) is fixedly connected with an outer cylinder (4), the inner wall of each of the plurality of outer cylinders (4) is slidably connected with an inner cylinder (5), the bottom end of each of the plurality of inner cylinders (5) is fixedly connected with a clamping block (7), the top of each of the plurality of clamping blocks (7) is fixedly connected with a spring one (6), the right side of each of the plurality of clamping blocks (7) is provided with a pulling groove (8), the bottom of each of the plurality of interfaces (3) is provided with a rotating groove (9), the inner wall middle part of each of the plurality of interfaces (3) is fixedly connected with a rotating shaft (10), the outer wall of each of the plurality of rotating shafts (10) is rotatably connected with a pulling plate (11), the top right side of each of the plurality of interfaces (3) is fixedly connected with a knob shell (12), the inner wall of each of the plurality of knob shells (12) is slidably connected with a button (13), the right side of the inner wall of each of the plurality of interfaces (3) is fixedly connected with a spring two (14), the bottom of each of the plurality of buttons (13) is fixedly connected with a pressing stick (15), the front side of each of the plurality of interfaces (3) is slidably connected with a plug (16), the top left side of each of the plurality of plugs (16) is provided with a clamping groove (17), and the rear side of the outer wall of the shell (1) is provided with a fixing mechanism (2).

2. The portable water balance tester of claim 1, wherein: The fixing mechanism (2) comprises two fixing blocks (201), the outer walls of the two fixing blocks (201) are fixedly connected to the rear middle part of the outer wall of the shell (1), the outer walls of the two fixing blocks (201) are fixedly connected with a bandage (202) on the side away from each other, the outer wall of the left bandage (202) is fixedly connected with a clamping shell (203), the outer wall of the right bandage (202) is fixedly connected with a reel (204), the bottom of the reel (204) is rotatably connected with a bottom block (205), the top of the reel (204) is provided with a top block (206), the bottom of the top block (206) is slidably connected to the inner wall of the reel (204), and the top of the top block (206) is fixedly connected with a rotating knob (207).

3. The portable water balance tester of claim 1, wherein: The outer wall rear side of each of the plurality of plugs (16) is fixedly connected with a transmission block (18), and the top of the shell (1) is fixedly connected with two rotating seats (19).

4. The portable water balance tester of claim 3, wherein: The inner walls of the two rotating seats (19) are rotatably connected with the same handle (20), and the front left side of the shell (1) is fixedly connected with a display screen (21).

5. The portable water balance tester of claim 1, wherein: The front side of each of the plurality of plugs (16) is fixedly connected with a transmission line (22), and the front end of each of the plurality of transmission lines (22) is fixedly connected with a sensor (23).

6. The portable water balance tester of claim 1, wherein: The front right side of the shell (1) is fixedly connected with a plurality of keys (24), and the left and right sides of the shell (1) are provided with a plurality of heat dissipation holes (25).

7. The portable water balance tester of claim 1, wherein: The right side of the shell (1) is fixedly connected with a nameplate (26), and the outer wall of the nameplate (26) is fixedly connected with a positioning pin (27) around.

8. The portable water balance tester of claim 1, wherein: The rear side of the shell (1) is fixedly connected with a plurality of anti-skid strips (28), and the bottom of the shell (1) is fixedly connected with a buffer pad (29) around.

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