Air pressure difference monitoring device

Abstract

The invention discloses an air pressure difference monitoring device which comprises a water storage device, a detection device is arranged on the left side of the water storage device, and a connecting pipe is fixedly connected to the bottom of the detection device. According to the air pressure difference monitoring device, the water storage device and the detection device are arranged, when equipment is used, the water storage device is located outside a unit, the detection device is located inside the unit, the water storage device and the detection device are connected through a connecting pipe according to the principle of a communicating vessel, and the jacking pipe is connected with the interior of the unit; the adjusting device moves upwards, the display device starts to rotate for counting, the pressure difference value in the sealing cylinder is displayed to the outside through the display device, under the multiple detection effects, the detection numerical value accuracy of the equipment is high, and the problems that a traditional barometer is directly exposed, the equipment is prone to being influenced by the external environment, and the detection precision is greatly influenced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of detection, and specifically to an air differential pressure monitoring device. Background Art

[0002] The currently used differential pressure sensor has the measured pressure directly acting on the diaphragm of the sensor, causing the diaphragm to generate a micro-displacement proportional to the water pressure, changing the capacitance value of the sensor, and using an electronic circuit to detect this change and convert it to output a standard measurement signal corresponding to the pressure. For existing differential pressure sensors, the environment has a great influence on the accuracy. Some electrical components are sensitive to moisture, and the response of the output current is relatively poor. When encountering environmental factors such as severe dust, it will affect the sensor. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides an air differential pressure monitoring device, which solves the problem that traditional air pressure differential sensors are easily affected by the external environment and result in poor accuracy.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: An air differential pressure monitoring device includes a water storage device. A detection device is arranged on the left side of the water storage device. The bottom of the detection device is fixedly connected with a connecting pipe. The water storage device is located outside the unit and the detection device is located inside the unit. The connecting pipe connects the two through the principle of a communicating vessel. The top pipe is connected to the inside of the unit. As the unit equipment is used, the pressure inside the top pipe decreases. The right end of the connecting pipe is fixedly connected to the lower surface of the water storage device; The detection device includes a top pipe. The outer surface of the bottom end of the top pipe is fixedly connected with a sealing cylinder. The outer surface of the left side of the sealing cylinder is fixedly connected with a display device. When the adjusting device moves upward, the display device starts to rotate and count. The pressure difference inside the sealing cylinder is displayed to the outside through the display device. Under multiple detections, the detection value accuracy of the device is relatively high. An adjusting device is arranged at the bottom of the display device; The water storage device includes a water inlet pipe. The left end of the water inlet pipe is fixedly connected with a water tank. A bottom plate is arranged inside the water tank. The water inlet pipe controls the height of the water level inside the water tank. The top of the water tank communicates with the outside through a through hole. External air enters the inside of the water tank through a leakage plate. During use, the adjusting rod controls the bottom plate to ensure that the bottom plate is always located on the liquid surface. Through the control of the adjusting rod, the communication and closing between the water tank and the outside can be controlled. The upper surface of the bottom plate is fixedly connected with an adjusting rod. The outer surface of the adjusting rod is slidably connected with a top plate. The lower surface of the top plate is fixedly connected with a leakage plate. A retaining ring is arranged inside the leakage plate.

[0005] Preferably, the lower surface of the sealing cylinder is communicated with the left end of the connecting pipe, and the outer surface of the adjusting device is slidably connected with the inner surface of the sealing cylinder. Affected by the leakage plate and the retaining ring, it is very difficult for external dust and other impurities to enter the interior of the water tank. The dust that naturally sinks is blocked by the top plate and cannot directly enter the interior of the water tank, ensuring the cleanliness of the interior of the water tank. The detection device is located inside the unit, and the water storage device is located outside the unit.

[0006] Preferably, the lower surface of the water tank is communicated with the right end of the connecting pipe, the lower surface of the leakage plate is fixedly connected with the outer surface of the water tank, the upper surface of the water tank is fixedly connected with the lower surface of the retaining ring, and the inner surface of the water tank is slidably connected with the outer surface of the adjusting rod.

[0007] Preferably, the display device includes a rotating shaft. A computing device is provided at the top of the rotating shaft. A convex block is fixedly connected to the outer surface of the rotating shaft. The rotating shaft rotates driven by the adjusting device. The light-shielding cover remains stationary relative to the rotating shaft, and the convex block rotates relative to the computing device. A reflective sheet is provided outside the convex block. A pointer is fixedly connected to the outer surface of the rotating shaft. A light-shielding cover is provided on the right side of the pointer.

[0008] Preferably, the outer surface of the reflective sheet is fixedly connected to the outer surface of the rotating shaft. The outer surface of the rotating shaft is rotatably connected with the inner surface of the sealing cylinder. The outer surface of the light-shielding cover is fixedly connected to the outer surface of the sealing cylinder. The outer surface of the computing device is fixedly connected to the inner surface of the sealing cylinder. By the number of times the convex block contacts the computing device and the number of times the reflective sheet reflects light, the number of turns of the rotating shaft is detected. Finally, adding the value indicated by the pointer gives the pressure difference. The convex blocks are arranged annularly along the outer surface of the rotating shaft, and the reflective sheets are arranged annularly along the outer surface of the rotating shaft.

[0009] Preferably, the computing device includes a top rod. A counterweight is rotatably connected to the outer surface of the top rod. A laser emitter is fixedly connected to the upper surface of the counterweight. A guiding plate is provided on the right side of the laser emitter. The left end of the top rod always remains in contact with the outer surface of the rotating shaft. As the rotating shaft rotates, the left end of the top rod contacts the convex block, and the top rod moves leftward along the inner surface of the hollow cylinder. The guiding plate slides, and the tension spring elongates. The right end of the top rod contacts and presses the induction block once, and the induction module inside the device records a value once. A tension spring is fixedly connected to the outer surface on the left side of the guiding plate. The left end of the tension spring is fixedly connected to a hollow cylinder. An induction block is fixedly connected to the inner surface of the hollow cylinder.

[0010] Preferably, the left end of the ejector rod is slidably connected to the outer surface of the convex block, and the outer surface of the ejector rod is slidably connected to the inner surface of the hollow cylinder. Then, the tension spring pulls the guide plate to ensure that the left end of the ejector rod always contacts the outer surface of the rotating shaft. During this process, the counterweight ensures that the laser emitter is located at the top of the ejector rod. The laser emitter emits laser obliquely upward to the outer surface of the reflector and then is reflected by the reflector into the interior of the light-shielding cover. The inner surface of the guide plate is fixedly connected to the outer surface of the ejector rod. Since the reflector is arc-shaped, the light will be intermittently reflected into the interior of the light-shielding cover during the rotation of the rotating shaft. By recording the number of reflections and the number of inductions of the induction block and taking the average value, the accurate pressure difference can be recorded. The outer surface of the hollow cylinder is fixedly connected to the inner surface of the sealing cylinder.

[0011] Preferably, the adjusting device includes a sleeve. The inner surface of the sleeve is fixedly connected with a sealing plate. The upper surface of the sealing plate is fixedly connected with a rack. The sleeve is stuck on the outer surface of the sealing cylinder. When the internal air pressure of the device decreases, the pressure on the top of the sealing plate decreases, and the water body at the bottom is affected by the atmospheric pressure and the pressure remains unchanged. The resultant force received by the sealing plate is vertically upward, and the sealing plate moves upward along the inner surface of the sealing cylinder. The sleeve slides upward along the outer surface of the sealing cylinder to prevent leakage. A pressure strip is arranged outside the rack, and the outer surface of the pressure strip is slidably connected with a corrugated pipe.

[0012] Preferably, the outer surface of the rack is rotatably connected to the outer surface of the rotating shaft. The inner surface of the sleeve is slidably connected to the outer surface of the sealing cylinder. The inner surface of the sealing cylinder is fixedly connected to the outer surface of the pressure strip. The inner surface of the sealing plate is slidably connected to the outer surface of the pressure strip. The lower surface of the corrugated pipe is fixedly connected to the upper surface of the sealing plate. During this process, the corrugated pipe is squeezed and contracted. The pressure strip ensures that the corrugated pipe always fits the inner surface of the sealing cylinder to prevent air leakage. The rack moves with the movement of the sealing plate. Under the action of the rack, the rotating shaft rotates forward or backward. Through gear meshing, the device can respond in a timely manner and improve the accuracy. The outer surface of the corrugated pipe is slidably connected to the inner surface of the sealing cylinder, and the outer surface of the rack is slidably connected to the inner surface of the sealing cylinder.

[0013] The present invention provides an air pressure difference monitoring device, which has the following beneficial effects: (1). The air pressure difference monitoring device is provided with a water storage device. When the device is in use, the water inlet pipe controls the water level inside the water tank. The top of the water tank is communicated with the outside through a through hole, and the outside air enters the inside of the water tank through a leak plate. During use, the adjusting rod controls the bottom plate to ensure that the bottom plate is always on the liquid surface. Through the control of the adjusting rod, the communication and closing between the water tank and the outside can be controlled. Affected by the leak plate and the retaining ring, it is very difficult for external dust and other impurities to enter the inside of the water tank. The dust that naturally sinks is blocked by the top plate and cannot directly enter the inside of the water tank, ensuring the cleanliness inside the water tank and solving the problem that the traditional air pressure detection device is directly communicated with the outside and the device is easily polluted by the outside.

[0014] (2). The air pressure difference monitoring device is provided with a display device. When the device is in use, the rotating shaft rotates driven by the adjusting device, the light-shielding cover remains stationary relative to the rotating shaft, and the convex block rotates relative to the computing device. By the number of times the convex block contacts the computing device and the number of times the reflecting sheet reflects light, the number of turns of the rotating shaft is detected. Finally, adding the value indicated by the pointer is the pressure difference, solving the problem of the single detection method and large numerical error of the traditional barometer.

[0015] (3). The air pressure difference monitoring device is provided with a computing device. When the device is in use, the left end of the ejector rod always remains in contact with the outer surface of the rotating shaft. As the rotating shaft rotates, the left end of the ejector rod contacts the convex block, and the ejector rod moves leftward along the inner surface of the hollow cylinder. The guide plate slides and the tension spring stretches. The right end of the ejector rod contacts and presses the induction block once, and the induction module inside the device records a value once. Then the tension spring pulls the guide plate to ensure that the left end of the ejector rod always remains in contact with the outer surface of the rotating shaft. During this process, the counterweight ensures that the laser emitter is located at the top of the ejector rod. The laser emitter emits laser obliquely upward to the outer surface of the reflecting sheet and then is reflected by the reflecting sheet into the inside of the light-shielding cover. Since the reflecting sheet is arc-shaped, the light will be intermittently reflected into the inside of the light-shielding cover during the rotation of the rotating shaft. By recording the number of reflections and the number of inductions of the induction block and taking the average value, the accurate pressure difference is recorded, solving the problem of large difference and poor data accuracy of the traditional barometer.

[0016] (4) The air pressure difference monitoring device is provided with an adjusting device. When the device is in use, the sleeve is stuck on the outer surface of the sealing cylinder. When the air pressure inside the device decreases, the pressure on the top of the sealing plate decreases, while the water body at the bottom is under the action of the atmospheric pressure and its pressure remains unchanged. The resultant force acting on the sealing plate is vertically upward, and the sealing plate moves upward along the inner surface of the sealing cylinder. The sleeve slides upward along the outer surface of the sealing cylinder to prevent leakage. During this process, the corrugated pipe is squeezed and shrunk, and the pressure strip ensures that the corrugated pipe always fits the inner surface of the sealing cylinder to prevent air leakage. The rack moves as the sealing plate moves. Under the action of the rack, the rotating shaft rotates forward or backward. Through gear meshing, the device can respond in a timely manner and improve the accuracy, solving the problem of easy leakage inside the traditional barometer.

[0017] (5) The air pressure difference monitoring device is provided with a water storage device and a detection device. When the device is in use, the water storage device is located outside the unit and the detection device is located inside the unit. The connecting pipe connects the two through the principle of a communicating vessel. The top pipe is connected to the inside of the unit. As the unit equipment is used, the pressure inside the top pipe decreases, the adjusting device moves upward, and the display device starts to rotate and count. The pressure difference inside the sealing cylinder is displayed to the outside through the display device. Under the action of multiple detections, the detection value of the device is highly accurate, solving the problem that the traditional barometer is directly exposed and the device is easily affected by the external environment, which has a great impact on the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 is a schematic structural diagram of the detection device of the present invention; Figure 4 is a schematic structural diagram of the water storage device of the present invention; Figure 5 is a schematic structural diagram of the display device of the present invention; Figure 6 is a schematic structural diagram of the calculation device of the present invention; Figure 7 is a schematic structural diagram of the adjusting device of the present invention.

[0019] In the figure: 1. Water storage device; 2. Detection device; 3. Connecting pipe; 4. Top pipe; 5. Sealing cylinder; 6. Display device; 7. Adjusting device; 10. Water inlet pipe; 11. Water tank; 12. Bottom plate; 13. Adjusting rod; 14. Top plate; 15. Leakage plate; 16. Retaining ring; 20. Rotating shaft; 21. Calculation device; 22. Convex block; 23. Reflective sheet; 24. Pointer; 25. Light-shielding cover; 30. Top rod; 31. Counterweight; 32. Laser emitter; 33. Guide plate; 34. Tensile spring; 35. Hollow cylinder; 36. Induction block; 40. Sleeve; 41. Sealing plate; 42. Rack; 43. Pressure strip; 44. Bellows. Detailed implementation

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0021] Please refer to Figures 1 - 7 , the present invention provides a technical solution: an air pressure difference monitoring device, including a water storage device 1, a detection device 2 is arranged on the left side of the water storage device 1, the bottom of the detection device 2 is fixedly connected with a connecting pipe 3, the right end of the connecting pipe 3 is fixedly connected with the lower surface of the water storage device 1, the detection device 2 includes a top pipe 4, the outer surface of the bottom end of the top pipe 4 is fixedly connected with a sealing cylinder 5, the outer surface of the left side of the sealing cylinder 5 is fixedly connected with a display device 6, the bottom of the display device 6 is provided with an adjusting device 7, the water storage device 1 includes a water inlet pipe 10, the left end of the water inlet pipe 10 is fixedly connected with a water tank 11, a bottom plate 12 is arranged inside the water tank 11, an adjusting rod 13 is fixedly connected to the upper surface of the bottom plate 12, the outer surface of the adjusting rod 13 is slidably connected with a top plate 14, the lower surface of the top plate 14 is fixedly connected with a leakage plate 15, and a retaining ring 16 is arranged inside the leakage plate 15.

[0022] The lower surface of the sealing cylinder 5 is communicated with the left end of the connecting pipe 3, the outer surface of the adjusting device 7 is slidably connected with the inner surface of the sealing cylinder 5, the detection device 2 is located inside the unit, the water storage device 1 is located outside the unit, the lower surface of the water tank 11 is communicated with the right end of the connecting pipe 3, the lower surface of the leakage plate 15 is fixedly connected with the outer surface of the water tank 11, the upper surface of the water tank 11 is fixedly connected with the lower surface of the retaining ring 16, and the inner surface of the water tank 11 is slidably connected with the outer surface of the adjusting rod 13.

[0023] During use, the water inlet pipe 10 controls the water level inside the water tank 11. The top of the water tank 11 is connected to the outside through a through hole, and outside air enters the inside of the water tank 11 through the leakage plate 15. During use, the adjusting rod 13 controls the bottom plate 12 to ensure that the bottom plate 12 is always on the liquid surface. Through the control of the adjusting rod 13, the connection and closure between the water tank 11 and the outside can be controlled. Affected by the leakage plate 15 and the retaining ring 16, it is very difficult for outside dust and other impurities to enter the inside of the water tank 11. The dust that naturally sinks is blocked by the top plate 14 and cannot directly enter the inside of the water tank 11, ensuring the cleanliness inside the water tank 11.

[0024] The water storage device 1 is located outside the unit, and the detection device 2 is located inside the unit. The connecting pipe 3 connects the two based on the principle of a communicating vessel. The top pipe 4 is connected to the inside of the unit. As the unit equipment is used, the pressure inside the top pipe 4 decreases, the adjusting device 7 moves upward, the display device 6 starts to rotate and count, and the pressure difference inside the sealing cylinder 5 is displayed to the outside through the display device 6. Under the action of multiple detections, the detection value accuracy of the equipment is relatively high. Embodiment

[0025] Please refer to Figures 1 - 7 , the present invention provides a technical solution: on the basis of Embodiment 1, the display device 6 includes a rotating shaft 20. A calculation device 21 is provided at the top of the rotating shaft 20. A convex block 22 is fixedly connected to the outer surface of the rotating shaft 20. A reflective sheet 23 is provided outside the convex block 22. A pointer 24 is fixedly connected to the outer surface of the rotating shaft 20. A light-shielding cover 25 is provided on the right side of the pointer 24. The outer surface of the reflective sheet 23 is fixedly connected to the outer surface of the rotating shaft 20. The outer surface of the rotating shaft 20 is rotatably connected to the inner surface of the sealing cylinder 5. The outer surface of the light-shielding cover 25 is fixedly connected to the outer surface of the sealing cylinder 5. The outer surface of the calculation device 21 is fixedly connected to the inner surface of the sealing cylinder 5. The convex blocks 22 are arranged annularly along the outer surface of the rotating shaft 20, and the reflective sheets 23 are arranged annularly along the outer surface of the rotating shaft 20.

[0026] The calculation device 21 includes a top rod 30. A counterweight 31 is rotatably connected to the outer surface of the top rod 30. A laser emitter 32 is fixedly connected to the upper surface of the counterweight 31. A guide plate 33 is provided on the right side of the laser emitter 32. A tension spring 34 is fixedly connected to the outer surface on the left side of the guide plate 33. The left end of the tension spring 34 is fixedly connected to a hollow cylinder 35. An induction block 36 is fixedly connected to the inner surface of the hollow cylinder 35. The left end of the top rod 30 is slidably connected to the outer surface of the convex block 22. The outer surface of the top rod 30 is slidably connected to the inner surface of the hollow cylinder 35. The inner surface of the guide plate 33 is fixedly connected to the outer surface of the top rod 30. The outer surface of the hollow cylinder 35 is fixedly connected to the inner surface of the sealing cylinder 5.

[0027] The adjusting device 7 includes a sleeve 40. A sealing plate 41 is fixedly connected to the inner surface of the sleeve 40. A rack 42 is fixedly connected to the upper surface of the sealing plate 41. A pressure strip 43 is arranged outside the rack 42. A corrugated pipe 44 is slidably connected to the outer surface of the pressure strip 43. The outer surface of the rack 42 is rotatably connected to the outer surface of a rotating shaft 20. The inner surface of the sleeve 40 is slidably connected to the outer surface of a sealing cylinder 5. The inner surface of the sealing cylinder 5 is fixedly connected to the outer surface of the pressure strip 43. The inner surface of the sealing plate 41 is slidably connected to the outer surface of the pressure strip 43. The lower surface of the corrugated pipe 44 is fixedly connected to the upper surface of the sealing plate 41. The outer surface of the corrugated pipe 44 is slidably connected to the inner surface of the sealing cylinder 5. The outer surface of the rack 42 is slidably connected to the inner surface of the sealing cylinder 5.

[0028] During use, the water inlet pipe 10 controls the water level inside the water tank 11. The top of the water tank 11 is communicated with the outside through a through hole. External air enters the inside of the water tank 11 through the leakage plate 15. During use, the adjusting rod 13 controls the bottom plate 12 to ensure that the bottom plate 12 is always located on the liquid surface. Through the control of the adjusting rod 13, the communication and closing between the water tank 11 and the outside can be controlled. Affected by the leakage plate 15 and the retaining ring 16, it is very difficult for external dust and other impurities to enter the inside of the water tank 11. The dust that naturally sinks is blocked by the top plate 14 and cannot directly enter the inside of the water tank 11, ensuring the cleanliness inside the water tank 11.

[0029] The rotating shaft 20 rotates driven by the adjusting device 7. The light-shielding cover 25 remains stationary relative to the rotating shaft 20. The convex block 22 rotates relative to the computing device 21. By the number of times the convex block 22 contacts the computing device 21 and the number of times the reflecting sheet 23 reflects light, the number of turns of the rotating shaft 20 is detected. Finally, adding the value indicated by the pointer 24 gives the pressure difference.

[0030] The left end of the ejector rod 30 always remains in contact with the outer surface of the rotating shaft 20. As the rotating shaft 20 rotates, the left end of the ejector rod 30 contacts the convex block 22. The left end of the ejector rod 30 moves leftward along the inner surface of the hollow cylinder 35. The guide plate 33 slides, and the tension spring 34 elongates. The right end of the ejector rod 30 contacts and presses the induction block 36 once, and the induction module inside the device records a value once. The tension spring 34 then pulls the guide plate 33 to ensure that the left end of the ejector rod 30 always remains in contact with the outer surface of the rotating shaft 20. During this process, the counterweight 31 ensures that the laser emitter 32 is located at the top of the ejector rod 30. The laser emitter 32 emits laser obliquely upward to the outer surface of the reflecting sheet 23 and then is reflected by the reflecting sheet 23 into the inside of the light-shielding cover 25. Since the reflecting sheet 23 is arc-shaped, the light will be intermittently reflected into the inside of the light-shielding cover 25 during the rotation of the rotating shaft 20. By recording the number of reflections and the number of inductions of the induction block 36 and taking the average value, the accurate pressure difference is recorded.

[0031] The sleeve 40 is stuck on the outer surface of the sealing cylinder 5. When the internal air pressure of the device decreases, the pressure at the top of the sealing plate 41 decreases. The water body at the bottom is under the action of the atmospheric pressure and the pressure remains unchanged. The resultant force acting on the sealing plate 41 is vertically upward. The sealing plate 41 moves upward along the inner surface of the sealing cylinder 5, and the sleeve 40 slides upward along the outer surface of the sealing cylinder 5 to prevent leakage. During this process, the corrugated pipe 44 is squeezed and shrunk, and the pressure strip 43 ensures that the corrugated pipe 44 always fits the inner surface of the sealing cylinder 5 to prevent air leakage. The rack 42 moves with the movement of the sealing plate 41. Under the action of the rack 42, the rotating shaft 20 rotates forward or backward. Through gear meshing, the timely response of the device is realized and the precision is improved.

[0032] The water storage device 1 is located outside the unit, and the external detection device 2 is located inside the unit. The connecting pipe 3 connects the two based on the principle of a communicating vessel. The top pipe 4 is connected to the inside of the unit. As the unit equipment is used, the pressure inside the top pipe 4 decreases, the adjusting device 7 moves upward, and the display device 6 starts to rotate and count. The pressure difference inside the sealing cylinder 5 is displayed to the outside through the display device 6. Under the action of multiple detections, the detection value accuracy of the device is relatively high.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air pressure difference monitoring device, comprising a water storage device (1), characterized in that: A detection device (2) is provided on the left side of the water storage device (1). A connecting pipe (3) is fixedly connected to the bottom of the detection device (2), and the right end of the connecting pipe (3) is fixedly connected to the lower surface of the water storage device (1). The detection device (2) includes a top pipe (4). A sealing cylinder (5) is fixedly connected to the outer surface of the bottom end of the top pipe (4). A display device (6) is fixedly connected to the outer surface on the left side of the sealing cylinder (5). An adjusting device (7) is provided at the bottom of the display device (6). The water storage device (1) includes a water inlet pipe (10). A water tank (11) is fixedly connected to the left end of the water inlet pipe (10). A bottom plate (12) is arranged inside the water tank (11). An adjusting rod (13) is fixedly connected to the upper surface of the bottom plate (12). A top plate (14) is slidably connected to the outer surface of the adjusting rod (13). A leakage plate (15) is fixedly connected to the lower surface of the top plate (14). A retaining ring (16) is arranged inside the leakage plate (15).

2. The air pressure difference monitoring device according to claim 1, wherein: The lower surface of the sealing cylinder (5) is communicated with the left end of the connecting pipe (3). The outer surface of the adjusting device (7) is slidably connected to the inner surface of the sealing cylinder (5). The detection device (2) is located inside the unit, and the water storage device (1) is located outside the unit.

3. The air pressure difference monitoring device according to claim 1, characterized in that: The lower surface of the water tank (11) is communicated with the right end of the connecting pipe (3). The lower surface of the leakage plate (15) is fixedly connected to the outer surface of the water tank (11). The upper surface of the water tank (11) is fixedly connected to the lower surface of the retaining ring (16). The inner surface of the water tank (11) is slidably connected to the outer surface of the adjusting rod (13).

4. The air pressure difference monitoring device according to claim 1, characterized in that: The display device (6) includes a rotating shaft (20). A calculating device (21) is arranged at the top of the rotating shaft (20). A convex block (22) is fixedly connected to the outer surface of the rotating shaft (20). A reflective sheet (23) is arranged outside the convex block (22). A pointer (24) is fixedly connected to the outer surface of the rotating shaft (20). A light-shielding cover (25) is arranged on the right side of the pointer (24).

5. An air pressure difference monitoring device according to claim 4, characterized in that: The outer surface of the reflective sheet (23) is fixedly connected to the outer surface of the rotating shaft (20). The outer surface of the rotating shaft (20) is rotatably connected to the inner surface of the sealing cylinder (5). The outer surface of the light-shielding cover (25) is fixedly connected to the outer surface of the sealing cylinder (5). The outer surface of the calculating device (21) is fixedly connected to the inner surface of the sealing cylinder (5). The convex blocks (22) are arranged in a ring along the outer surface of the rotating shaft (20). The reflective sheets (23) are arranged in a ring along the outer surface of the rotating shaft (20).

6. The air pressure difference monitoring device according to claim 4, characterized in that: The computing device (21) includes a ejector rod (30), a counterweight block (31) is rotatably connected to the outer surface of the ejector rod (30), a laser emitter (32) is fixedly connected to the upper surface of the counterweight block (31), a guide plate (33) is arranged on the right side of the laser emitter (32), a tension spring (34) is fixedly connected to the outer surface on the left side of the guide plate (33), the left end of the tension spring (34) is fixedly connected to a hollow cylinder (35), and an induction block (36) is fixedly connected to the inner surface of the hollow cylinder (35).

7. An air pressure difference monitoring device according to claim 6, characterized in that: The left end of the ejector rod (30) is slidably connected to the outer surface of the convex block (22), the outer surface of the ejector rod (30) is slidably connected to the inner surface of the hollow cylinder (35), the inner surface of the guide plate (33) is fixedly connected to the outer surface of the ejector rod (30), and the outer surface of the hollow cylinder (35) is fixedly connected to the inner surface of the sealing cylinder (5).

8. An air pressure difference monitoring device according to claim 4, characterized in that: The adjusting device (7) includes a sleeve (40), a sealing plate (41) is fixedly connected to the inner surface of the sleeve (40), a rack (42) is fixedly connected to the upper surface of the sealing plate (41), a pressure strip (43) is arranged outside the rack (42), and a corrugated pipe (44) is slidably connected to the outer surface of the pressure strip (43).

9. The air pressure difference monitoring device according to claim 8, wherein: The outer surface of the rack (42) is rotatably connected to the outer surface of the rotating shaft (20), the inner surface of the sleeve (40) is slidably connected to the outer surface of the sealing cylinder (5), the inner surface of the sealing cylinder (5) is fixedly connected to the outer surface of the pressure strip (43), the inner surface of the sealing plate (41) is slidably connected to the outer surface of the pressure strip (43), the lower surface of the corrugated pipe (44) is fixedly connected to the upper surface of the sealing plate (41), the outer surface of the corrugated pipe (44) is slidably connected to the inner surface of the sealing cylinder (5), and the outer surface of the rack (42) is slidably connected to the inner surface of the sealing cylinder (5).

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