Miniature automatic pressure-stabilizing liquid-supplementing water tank

Abstract

The invention relates to a miniature automatic pressure stabilizing liquid supplementing water tank, and relates to the field of pressure stabilizing liquid supplementing water tanks, the miniature automatic pressure stabilizing liquid supplementing water tank comprises a first tank body and a second tank body, the first tank body is connected with the second tank body, the first tank body is provided with a liquid inlet, the second tank body is provided with a liquid outlet, and the second tank body is provided with an expansion water tank cover; the expansion water tank cover is used for exhausting or discharging liquid when the pressure in the water tank is too large, an exhausting and liquid discharging pipe is installed on the expansion water tank cover, the first tank body is higher than the second tank body, and a pressure maintaining valve is installed on the expansion water tank cover. The device has the effect of avoiding the influence on the use flexibility of the device.

Description

Technical Field

[0001] The present application relates to the field of pressure-stabilizing liquid-replenishing water tanks, and in particular to a miniature automatic pressure-stabilizing liquid-replenishing water tank. Background Art

[0002] In the liquid-cooled heat exchange circulation system, the coolant liquid with a lower temperature absorbs the heat from the heating device, and its temperature rises. It is cooled down by the heat exchange device and then passes through the heating device again, repeating the cycle to dissipate heat and cool down the heating device.

[0003] After absorbing heat, the circulating coolant increases in temperature and expands in volume. The liquid circulation system is a closed loop. If there is no suitable device, the circulating liquid after volume expansion has nowhere to be stored. At the same time, as the liquid expands, high pressure will be formed in the pipeline, which may easily cause damage to the pipeline or equipment. After the liquid is cooled, the volume shrinks, which reduces the liquid in the pipeline and reduces the pressure, affecting the system circulation and heat dissipation. In addition, there will be gas in the system circulation, which affects the circulation loop coolant flow and heat exchange efficiency. Non-condensable gas needs to be discharged during the coolant circulation process.

[0004] Existing liquid cooling heat exchange circulation systems are usually equipped with devices such as expansion tanks and water supply tanks. Due to the large size of devices such as expansion tubes and water supply tanks, the expansion tanks and water supply tanks occupy too much space, thus affecting the flexibility of the device. Summary of the invention

[0005] In order to avoid affecting the flexibility of use of the device, the present application provides a miniature automatic pressure-stabilizing liquid replenishment water tank.

[0006] The present application provides a micro automatic pressure-stabilizing liquid replenishing water tank adopts the following technical solution: A miniature automatic pressure-stabilizing liquid-replenishing water tank comprises a first tank body and a second tank body, wherein the first tank body and the second tank body are connected, a liquid inlet is provided on the first tank body, a liquid outlet is provided on the second tank body, an expansion tank cover is installed on the second tank body, the expansion tank cover is used to exhaust or drain liquid when the pressure in the water tank is too large, an exhaust and liquid-replenishing pipe is installed on the expansion tank cover, the height of the first tank body is higher than that of the second tank body, a pressure-stabilizing valve is installed on the expansion tank cover, and a sewage discharge and liquid-replenishing port is provided on the bottom of the side wall of the first tank body.

[0007] By adopting the above technical scheme, the first box body is connected to the second box body, the first box body is provided with a liquid inlet, the second box body is provided with a liquid outlet, an expansion tank cap is installed on the second box body, an exhaust and drain pipe is installed on the expansion tank cap, and the height of the first box body is higher than that of the second box body, so that the coolant enters from the liquid inlet opened on the first box body and then flows out from the liquid outlet opened on the second box body. When the volume of the liquid in the box body increases due to thermal expansion and the system pressure is too high, the expansion tank cap is opened to discharge gas or liquid to reduce the system pressure. At the same time, when the liquid in the box body is too little, liquid is replenished into the box body through the exhaust and drain pipe at the bottom of the first box body, and sewage and liquid replenishment are carried out through the sewage and liquid replenishment port arranged at the bottom of the first box, thereby eliminating the expansion tank, water replenishment tank and other devices, making the device occupy less space and avoiding affecting the flexibility of use of the device.

[0008] In a specific feasible implementation scheme, it also includes a cleaning device, which includes a sealing seat, a limiting rod and a scraper, one end of the limiting rod is connected to the sealing seat, and the other end of the limiting rod is connected to the scraper, guide grooves are provided on the side walls of the first box body and the second box body, the limiting rod is slidably connected in the guide groove, and the scraper can scrape off the sediment at the bottom of the first box body and the second box body, an installation groove is provided on the first box body, and the sealing seat can be snapped into the installation groove to seal the second box body, and a locking structure is installed on the sealing seat, and the locking structure is used to install the sealing seat on the first box body.

[0009] By adopting the above technical solution, one end of the limit rod is installed on the sealing seat, and the other end of the limit rod is installed on the scraper. Guide grooves are provided on the side walls of the first box body and the second box body corresponding to the limit rod. The limit rod is slidably connected in the guide groove. The sealing seat can be pulled out and the sliding rod can slide in the guide groove, thereby driving the scraper to move and clean the sediment at the bottom of the first box body and the second box body. At the same time, the locking structure can lock the sealing seat and install it on the first box body to ensure the sealing effect of the connection between the sealing seat and the first box body.

[0010] In a specific feasible implementation scheme, the locking structure includes a driving rod, a driving gear and a locking rack, a sealing seat cavity is provided in the sealing seat, the driving rod is rotatably connected to the sealing seat side wall, one end of the driving rod extends into the sealing seat cavity, the driving gear is installed on the driving rod at one end of the sealing seat cavity, a rack groove is provided on the inner side wall of the sealing seat cavity, one end of the locking rack is slidably connected in the rack groove, the other end of the locking rack is meshed with the driving gear, the locking rack is slidably connected to a clamping block at one end of the rack groove, a clamping groove is provided on the inner side wall of the mounting groove, and the clamping block can be clamped in the clamping groove as the locking rack moves.

[0011] By adopting the above technical scheme, a sealing seat cavity is opened in the sealing seat, the driving rod is rotatably connected to the side wall of the sealing seat, one end of the driving rod extends into the sealing seat cavity, and the driving gear is installed on the driving rod, and a rack groove is opened on the inner side wall of the sealing seat cavity, one end of the locking rack is slidably connected to the rack groove, and the other end of the locking rack is meshed with the driving gear, the locking rack is slidably connected to one end of the rack groove and a clamping block is installed, and a clamping groove is opened on the inner side wall of the installation groove, and the driving gear is driven to rotate by rotating the driving rod, and the driving gear drives the locking rack to slide along the rack groove, and the clamping block is clamped in the clamping groove, thereby ensuring the firmness of the connection between the sealing seat and the first box body, thereby ensuring the sealing effect between the two.

[0012] In a specific possible implementation scheme, it also includes a positioning rod, which is installed on the inner wall of the sealing seat cavity. A positioning rod sliding groove is opened on the locking rack corresponding to the positioning rod, and the positioning rod is slidably connected in the positioning rod sliding groove.

[0013] By adopting the above technical solution, one end of the positioning rod is rotatably connected to the inner wall of the sealing seat cavity, and the positioning rod is rotatably connected to the positioning rod slide groove. The moving direction of the locking slider can be limited by the positioning rod, thereby avoiding lateral movement of the locking slider, thereby ensuring the tightness of the connection between the sealing seat and the first box body.

[0014] In a specific possible implementation manner, two locking racks are provided, and the two locking racks are symmetrically meshed on both sides of the driving gear.

[0015] By adopting the above technical solution, two locking racks are provided, and the two locking racks are symmetrically meshed on both sides of the driving gear, thereby further ensuring the firmness of the connection between the sealing seat and the first box body.

[0016] In a specific possible implementation scheme, the clamping block is configured as an oblique block, and the shape of the clamping groove corresponds to the clamping block being configured as an oblique groove.

[0017] By adopting the above technical solution, the clamping block is set as an inclined block, and the shape of the clamping groove corresponds to the shape of the clamping groove, and the clamping block moves along the inclined groove during movement, so that the distance between the two is gradually reduced, and the connection between the two is tighter, thereby ensuring the tightness of the connection between the sealing seat and the first box body.

[0018] In a specific feasible implementation scheme, a first sealing block is provided on the side wall of the sealing seat facing the installation groove, a first sealing groove is opened in the installation groove corresponding to the first sealing block, a first sealing ring is installed on the first sealing block, and the first sealing block can be clamped in the first sealing groove and squeeze the first sealing ring.

[0019] By adopting the above technical solution, a first sealing block is arranged on the side wall of the sealing seat facing the installation groove, a first sealing groove is arranged in the installation groove corresponding to the first sealing block, a first sealing ring is arranged on the first sealing block, the first sealing block is clamped in the first sealing groove and pressed against the first sealing ring to deform the first sealing ring, thereby ensuring the sealing of the connection between the two.

[0020] In a specific implementation scheme, a second sealing block is provided on the inner wall of the first sealing block, a second sealing ring is installed on the second sealing block, a second sealing groove is provided in the installation groove corresponding to the second sealing block, and the second sealing block can be clamped in the second sealing groove to press against the second sealing ring.

[0021] By adopting the above technical solution, a second sealing block is arranged on the inner side wall of the first sealing block, a second sealing ring is installed on the second sealing block, a second sealing groove is opened in the installation groove corresponding to the second sealing block, the second sealing block is clamped in the second sealing groove, and the second sealing ring is pressed at the same time, thereby further improving the sealing effect between the two.

[0022] In a specific implementation manner, it further comprises a filtering device, and the filtering device is detachably connected to the connection between the first housing and the second housing.

[0023] By adopting the above technical solution, the filter device can be detachably installed at the connection between the first box and the second box, so that the liquid entering the second box from the first box can be filtered to avoid excessive impurities and blockage of the pipeline, and the filter device can be easily removed for cleaning.

[0024] In a specific implementation manner, it further includes a liquid level sensor, which is installed in the second tank.

[0025] By adopting the above technical solution, the liquid level sensor is installed in the second box body, and the liquid level sensor can detect the liquid level height in the second box body, so that when the liquid level height is too low, the coolant can be replenished in time.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The first box body is connected to the second box body, a liquid inlet is provided on the first box body, a liquid outlet is provided on the second box body, an expansion tank cap is installed on the second box body, an exhaust and liquid discharge pipe is installed on the expansion tank cap, and the height of the first box body is higher than that of the second box body, so that the coolant enters from the liquid inlet provided on the first box body and then flows out from the liquid outlet provided on the second box body. When the volume of the liquid in the box body increases due to heat expansion and the system pressure is too high, the expansion tank cap is opened to discharge gas or liquid to reduce the system pressure. At the same time, when the liquid in the box body is too little, liquid is replenished into the box body through the exhaust and liquid discharge pipe at the bottom of the first box body, and sewage and liquid replenishment are carried out through the sewage and liquid replenishment port provided on the first box body, thereby eliminating the expansion tank, water replenishment tank and other devices, making the device occupy less space and avoiding affecting the flexibility of use of the device; 2. One end of the positioning rod is rotatably connected to the inner wall of the sealing seat cavity, and the positioning rod is rotatably connected to the rack slide groove. The moving direction of the locking slider can be limited by the positioning rod, thereby preventing the locking slider from moving horizontally, thereby ensuring the tightness of the connection between the sealing seat and the first box body; 3. A sealing seat cavity is provided in the sealing seat, and the driving rod is rotatably connected to the side wall of the sealing seat, one end of the driving rod extends into the sealing seat cavity, and the driving gear is installed on the driving rod. A rack groove is provided on the inner side wall of the sealing seat cavity, one end of the locking rack is slidably connected to the rack groove, and the other end of the locking rack is meshed with the driving gear. The locking rack is slidably connected to one end of the rack groove and a clamping block is installed. A clamping groove is provided on the inner side wall of the installation groove. The driving gear is rotated by rotating the driving rod, and the driving gear drives the locking rack to slide along the rack groove, and the clamping block is clamped in the clamping groove to ensure the firmness of the connection between the sealing seat and the first box body, thereby ensuring the sealing effect between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the cleaning device in the embodiment of the present application.

[0030] Figure 4 for Figure 3 Enlarged view of part A.

[0031] Figure 5 This is a structural diagram of the present application in which no cleaning device is installed.

[0032] Figure 6 for Figure 5 Enlarged view of part B.

[0033] Figure 7 for Figure 5 Magnified view of part C.

[0034] Figure 8 Schematic diagram of the locking structure in the embodiment of the present application.

[0035] Explanation of the reference numerals: 1. first housing; 11. liquid inlet; 12. sewage discharge and liquid replenishment port; 13. mounting groove; 14. first sealing groove; 15. second sealing groove; 16. snap-in groove; 2. second housing; 21. liquid outlet; 22. expansion tank cover; 23. pressure-stabilizing valve; 3. cleaning device; 31. sealing seat; 311. first sealing block; 312. second sealing block; 313. first sealing ring; 314. second sealing ring; 315. rack slide; 32. limiting rod; 33. scraper; 34. locking structure; 341. driving hand wheel; 342. driving rod; 343. driving gear; 344. locking rack; 3441. positioning rod slide; 345. positioning rod; 346. snap-in block; 4. liquid level sensor; 5. filtering device. DETAILED DESCRIPTION

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0038] The embodiment of the present application discloses a miniature automatic pressure-stabilizing liquid-replenishing water tank.

[0039] like Figure 1As shown, the micro automatic pressure-stabilizing liquid-replenishing water tank comprises a first tank body 1 and a second tank body 2, the first tank body 1 is connected to the second tank body 2, a liquid inlet 11 is provided at a lower part of the side wall of the first tank body 1, a liquid outlet 21 is provided at a lower part of the side wall of the second tank body 2, an expansion tank cover 22 is installed on the top of the second tank body 2, a pressure-stabilizing valve 23 is arranged on the expansion tank cover 22, and a certain threshold value can be set according to needs. When the pressure of the tank body reaches a certain value, the pressure-stabilizing valve 23 opens and discharges gas to adjust the pressure in the tank body, so that the pressure in the tank body is always in a stable state, an exhaust and liquid-replenishing pipe is connected to the expansion tank cover 22, a sewage discharge and liquid-replenishing port 12 is installed on the first tank body 1, sewage is discharged to the outside of the tank body or liquid is replenished into the tank body through the sewage discharge and liquid-replenishing port 12, the height of the first tank body 1 is higher than that of the second tank body 2, and part of the space reserved on the upper part of the first tank body 1 can reduce the amplitude of liquid oscillation and can be used to store gas at the same time.

[0040] like Figure 2 As shown, in the embodiment of the present application, a liquid level sensor 4 and a filter device 5 are also included. The liquid level sensor 4 is installed in the second box body 2. An installation port is provided at the upper end of the second box body 2, and the filter device 5 can be inserted into the second box body 2 through the installation port, so that the filter device 5 is installed at the connection between the first box body 1 and the second box body 2, so that the coolant entering the second box body 2 from the first box body 1 can be filtered to avoid blockage of the pipeline caused by excessive sediment. The filter device 5 can adopt a filter screen structure or a common filter on the market.

[0041] like Figure 3 As shown, in the embodiment of the present application, a cleaning device 3 is also included, and the cleaning device 3 includes a sealing seat 31, a limiting rod 32, a scraper 33 and a locking structure 34. Two limiting rods 32 are provided, and the two limiting rods 32 are respectively installed on both sides of the sealing seat 31. One end of the limiting rod 32 is fixedly connected to the sealing seat 31, and the other end of the limiting rod 32 is bent. The bent end of the limiting rod 32 is fixedly connected to the scraper 33. Guide grooves are opened on the side walls of both sides of the first box body 1 and the second box body 2 corresponding to the limiting rod 32. The limiting rod 32 is slidably connected in the guide groove, and the sewage discharge and liquid replenishment port 12 is installed on the sealing seat 31.

[0042] One end of the limiting rod 32 is installed on the sealing seat 31, and the other end of the limiting rod 32 is installed on the scraper 33. Guide grooves are provided on the side walls of the first box body 1 and the second box body 2 corresponding to the limiting rod 32. The limiting rod 32 is slidably connected in the guide groove. The sealing seat 31 can be pulled out, and the sliding rod can slide in the guide groove, thereby driving the scraper 33 to move to clean the sediment at the bottom of the first box body 1 and the second box body 2. At the same time, the locking structure 34 can lock the sealing seat 31 and install it on the first box body 1 to ensure the sealing effect of the connection between the sealing seat 31 and the first box body 1.

[0043] like Figures 4 to 7As shown, a mounting groove 13 is provided on the first box body 1 corresponding to the sealing seat 31, and the sealing seat 31 can be installed in the mounting groove 13. A first sealing block 311 is provided on the side wall of the sealing seat 31 facing the mounting groove 13. A first sealing groove 14 is provided in the mounting groove 13 corresponding to the first sealing block 311. A first sealing ring 313 is provided on the first sealing block 311. The first sealing block 311 can be snapped into the first sealing groove 14 and can squeeze the first sealing ring 313 to deform. A second sealing block 312 is provided on the inner side wall of the first sealing block 311. A second sealing groove 15 is provided in the mounting groove 13 corresponding to the second sealing block 312. A second sealing ring 314 is provided on the second sealing block 312. The second sealing block 312 can be snapped into the second sealing groove 15 and can squeeze the second sealing ring 314 to deform. Both the first sealing ring 313 and the second sealing ring 314 are made of materials with sealing properties such as rubber or silicone.

[0044] A first sealing block 311 is provided on the side wall of the sealing seat 31 facing the mounting groove 13, a first sealing groove 14 is installed in the mounting groove 13 corresponding to the first sealing block 311, a first sealing ring 313 is provided in the first sealing block 311, the first sealing groove 14 is clamped in the first sealing block 311, and presses against the first sealing ring 313 to deform the first sealing ring 313, a second sealing block 312 is provided on the inner wall of the first sealing block 311, a second sealing ring 314 is installed in the second sealing block 312, a second sealing groove 15 is provided in the mounting groove 13 corresponding to the second sealing block 312, the second sealing groove 15 is clamped in the second sealing block 312, and squeezes the second sealing ring 314 to deform, thereby ensuring the sealing of the connection between the two.

[0045] like Figure 8As shown, the locking structure 34 includes a driving hand wheel 341, a driving rod 342, a driving gear 343, a locking rack 344 and a positioning rod 345. A sealing seat cavity is opened in the sealing seat 31, and the driving rod 342 is rotatably connected to the side wall of the sealing seat 31. One end of the driving rod 342 is arranged on the outside of the side wall of the sealing seat 31, and the other end of the driving rod 342 extends into the sealing seat cavity. The driving hand wheel 341 is installed on the end of the driving rod 342 located outside the sealing seat cavity, and the driving gear 343 is installed on the end of the driving rod 342 located in the sealing seat cavity. Two locking racks 344 are provided, and the two locking racks 344 are symmetrically meshed on both sides of the driving gear 343. A clamping block 346 is provided at one end of the tightening rack 344, and a rack groove 315 is provided on the inner wall of the sealing seat cavity. The clamping block 346 is slidably connected in the rack groove 315. The clamping block 346 is preferably set as an oblique block. A clamping groove 16 is provided on the inner wall of the mounting groove 13 corresponding to the clamping block 346. The shape of the clamping groove 16 corresponds to the clamping block 346 set as an oblique block. Two positioning rods 345 are provided corresponding to the locking rack 344. A positioning rod groove 3441 is provided on the locking rack 344 corresponding to the positioning rod 345. The end of the positioning rod 345 away from the side wall of the mounting groove 13 is slidably connected in the positioning rod groove 3441, thereby limiting the locking rack 344.

[0046] The cam 342 is engaged with the first gear 314 and the second gear 316 is engaged with the first gear 318. When the cam 342 is engaged with the first gear 314, the second gear 316 is engaged with the first gear 318. When the cam 342 is engaged with the first gear 314, the second gear 316 is engaged with the first gear 318.

[0047] The implementation principle of a micro automatic pressure-stabilizing liquid-replenishing water tank in the embodiment of the present application is as follows: the coolant enters the first box body 1 through the liquid inlet 11 on the first box body 1, and enters the second box body 2 after passing through the filter device 5, and is then discharged from the liquid outlet 21 arranged on the second box body 2. When the pressure in the box body is too high, the pressure-stabilizing valve 23 is pushed open and the air is exhausted to adjust the pressure in the box body. At the same time, the liquid level sensor 4 in the box body can detect the water level in the box body. When the water level is too low, the liquid can be replenished into the box body through the exhaust and drainage pipe, thereby eliminating the expansion tank, the water replenishing tank and other devices, making the device occupy less space and avoiding affecting the flexibility of use of the device. When it is necessary to clean the first box body 1 and the second box body 2, the coolant enters the second box body 2 through the filter device 5. When there is sediment in the two boxes 2, the coolant in the first box 1 and the second box 2 is discharged through the sewage and liquid replenishing port 12 installed on the sealing seat 31, and the driving hand wheel 341 is rotated. The driving hand wheel 341 drives the driving gear 343 to rotate, and the driving gear 343 drives the locking rack 344. The clamping block 346 is received in the sliding groove of the sealing seat 31, thereby releasing the connection between the sealing seat 31 and the first box 1. At this time, the sealing seat 31 is pulled out, the limiting rod 32 slides in the guide groove and is limited, and the scraper 33 scrapes off the sediment deposited at the bottom of the first box 1 and the second box 2 and cleans it. After cleaning, the sealing seat 31 can be installed on the first box 1 in the reverse direction.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A miniature automatic pressure-stabilizing liquid-replenishing water tank, characterized in that: The invention comprises a first box body (1) and a second box body (2), wherein the first box body (1) and the second box body (2) are connected, the first box body (1) is provided with a liquid inlet (11), the second box body (2) is provided with a liquid outlet (21), the second box body (1) is provided with an expansion tank cover (22), the expansion tank cover (22) is used to exhaust air or discharge liquid when the pressure in the water tank is too large, the expansion tank cover (22) is provided with an exhaust and liquid discharge pipe, the first box body (1) is arranged at a height higher than the second box body (2), the expansion tank cover (22) is provided with a pressure stabilizing valve (23), and the bottom of the side wall of the first box body (1) is provided with a sewage discharge and liquid replenishment port (12).

2. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 1 is characterized in that: The cleaning device (3) further comprises a cleaning device (3), the cleaning device (3) comprising a sealing seat (31), a limiting rod (32) and a scraper (33), one end of the limiting rod (32) being connected to the sealing seat (31), and the other end of the limiting rod (32) being connected to the scraper (33), guide grooves being provided on the side walls of the first box body (1) and the second box body (2), the limiting rod (32) being slidably connected in the guide grooves, a mounting groove (13) being provided on the first box body (1), the sealing seat (31) being able to be snapped into the mounting groove (13) to seal the second box body (2), and a locking structure (34) being installed on the sealing seat (31), the locking structure (34) being used to install the sealing seat (31) on the first box body (1).

3. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 2 is characterized in that: The locking structure (34) comprises a driving rod (342), a driving gear (343) and a locking rack (344); a sealing seat cavity is provided in the sealing seat (31); the driving rod (342) is rotatably connected to the side wall of the sealing seat (31); one end of the driving rod (342) extends into the sealing seat cavity; the driving gear (343) is mounted on the driving rod (342) at one end of the sealing seat cavity; a rack sliding groove (314) is provided on the inner side wall of the sealing seat cavity. 5), one end of the locking rack (344) is slidably connected in the rack slide groove (315), and the other end of the locking rack (344) is meshed with the driving gear (343), and the locking rack (344) is slidably connected to the rack slide groove (315) and is provided with a snap-in block (346) at one end, and a snap-in groove (16) is provided on the inner side wall of the mounting groove (13), and the snap-in block (346) can be snap-into the snap-in groove (16) as the locking rack (344) moves.

4. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 3 is characterized by: It also includes a positioning rod (345), which is installed on the inner wall of the sealing seat cavity. A positioning rod sliding groove (3441) is provided on the locking rack (344) corresponding to the positioning rod (345), and the positioning rod (345) is slidably connected in the positioning rod sliding groove (3441).

5. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 3 is characterized by: Two locking racks (344) are provided, and the two locking racks (344) are symmetrically meshed on both sides of the driving gear (343).

6. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 3 is characterized by: The clamping block (346) is configured as an oblique block, and the shape of the clamping groove (16) corresponds to that of the clamping block (346) being configured as an oblique groove.

7. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 2 is characterized by: A first sealing block (311) is arranged on a side wall of the sealing seat (31) facing the installation groove (13); a first sealing groove (14) is provided in the installation groove (13) corresponding to the first sealing block (311); a first sealing ring (313) is installed on the first sealing block (311); the first sealing block (311) can be snap-fitted into the first sealing groove (14) and squeeze the first sealing ring (313).

8. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 7 is characterized in that: A second sealing block (312) is arranged on the first sealing block (311), a second sealing ring (314) is installed on the second sealing block (312), a second sealing groove (15) is arranged in the installation groove (13) corresponding to the second sealing block (312), and the second sealing block (312) can be snapped into the second sealing groove (15) to press against the second sealing ring (314).

9. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 1 is characterized by: It also comprises a filtering device (5), and the filtering device (5) is detachably connected to the connection between the first box body (1) and the second box body (2).

10. The miniature automatic pressure-stabilizing liquid-replenishing water tank according to claim 1 is characterized by: It also comprises a liquid level sensor (4), wherein the liquid level sensor (4) is installed in the second box body (2).

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