Submersible pump sealing device

Abstract

The invention relates to the technical field of water pumps, and discloses a submersible pump sealing device which comprises a submersible pump, an installation sealing mechanism is arranged outside the submersible pump, a pre-installation mechanism is arranged at the top of the installation sealing mechanism and used for installing the installation sealing mechanism, and an air inlet mechanism is arranged outside the installation sealing mechanism. The air inlet mechanism is used for inflating air into the mounting sealing mechanism, and a pressure relief mechanism is arranged outside the air inlet mechanism and used for exhausting the air pressure in the mounting sealing mechanism and the air inlet mechanism. By arranging the sealing mechanism and the air inlet mechanism, the joint of the pump body can be sealed again, so that the problem that the sealing performance is reduced after the pump body is disassembled can be prevented, the pump body can be further protected, water is prevented from entering the pump body, the service life of the submersible pump is prolonged, and economic loss is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pump, in particular to a sealing device of submersible pump. BACKGROUND

[0002] The sealing device of submersible pump is a core component for preventing water from entering the motor and ensuring the safe operation of the equipment. Its main function is to isolate the conveying medium inside the pump body from the motor cavity to prevent the motor from short circuiting or being damaged due to moisture. Its common structure is divided into dynamic sealing and static sealing: dynamic sealing is mostly mechanical sealing, suitable for shaft rotation scenarios; static sealing commonly uses O-shaped rubber sealing ring, sealing gasket, etc. for gap sealing between fixed parts. In terms of material, the mechanical sealing ring is mostly made of wear-resistant materials such as silicon carbide and aluminum oxide, and the sealing ring is mostly made of oil and water resistant nitrile rubber and fluorine rubber. The sealing parts need to be checked regularly for wear and tear. If there is leakage or abnormal noise, it needs to be replaced in time, otherwise it may cause the motor to burn out and other faults.

[0003] The sealing device of submersible pump in the prior art is generally installed inside the shell and usually exists in the form of a sealing ring. With the use of the submersible pump, maintenance is essential. Once the pump body is disassembled, the sealing performance of the joint of the pump body will decrease, and even the sealing performance will be poor, causing water to enter the inside of the pump body and causing damage to the submersible pump, reducing the service life of the submersible pump and causing economic losses. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a sealing device of submersible pump, which solves the problem of water entering the inside of the pump body and causing damage after disassembly and maintenance of the submersible pump in the prior art, reducing the service life of the submersible pump and causing economic losses.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a sealing device of submersible pump, comprising a submersible pump, an installation sealing mechanism is arranged outside the submersible pump, a pre-installation mechanism is arranged at the top of the installation sealing mechanism, the pre-installation mechanism is used for installing the installation sealing mechanism, an air inlet mechanism is arranged outside the installation sealing mechanism, the air inlet mechanism is used for filling air pressure into the inside of the installation sealing mechanism, a pressure relief mechanism is arranged outside the air inlet mechanism, and the pressure relief mechanism is used for discharging the air pressure inside the installation sealing mechanism and the air inlet mechanism.

[0006] Preferably, the installation sealing mechanism comprises a sleeve ring, a stable air bag is fixedly connected to the inner side of the sleeve ring, connecting frames are fixedly connected to the upper and lower sides of the sleeve ring, a fixed ring is fixedly connected to the top of the upper connecting frame, a sealing air bag one is fixedly connected to the inside of the fixed ring, a fixed sleeve is fixedly connected to the bottom of the lower connecting frame, and a sealing air bag two is fixedly connected to the inner side of the fixed sleeve.

[0007] Preferably, the pre-installation mechanism comprises a plurality of rotating frames, outer portions of the plurality of rotating frames are respectively rotatably connected to upper and lower sides of the outer portion of the fixed ring, a top portion of the rotating frame is slidably connected with a sliding rod, an outer portion of the sliding rod is sleeved with a pull spring one, an outer portion of the submersible pump is provided with a plurality of clamping holes, and an end of the sliding rod away from the submersible pump is fixedly connected with a round handle.

[0008] Preferably, the air inlet mechanism comprises a main air pipe, a top portion of the main air pipe is fixedly connected to the outer portion of the fixed ring, an inner bottom end of the main air pipe is fixedly connected with a fixed air disc, a middle portion of the fixed air disc is slidably connected with a sliding stabilizing rod, a top portion of the sliding stabilizing rod is fixedly connected with a movable air disc, an outer portion of the sliding stabilizing rod is sleeved with a pull spring two, an inner portion of the main air pipe is fixedly connected with a fixed blocking ring, an outer portion of the main air pipe is fixedly connected with a secondary pipe one, an outer portion of the main air pipe is fixedly connected with a secondary pipe two, a bottom portion of the secondary pipe one is fixedly connected to the outer portion of the fixed sleeve, and an end of the secondary pipe two away from the main air pipe is fixedly connected to the outer portion of the sleeve ring.

[0009] Preferably, the pressure relief mechanism comprises a vent pipe, one end of the vent pipe is fixedly connected to the outer portion of the main air pipe, an outer wall of the vent pipe is provided with a vent groove, an outer portion of the vent pipe is rotatably connected with a blocking ring, an outer wall of the blocking ring is provided with an alignment groove, both ends of the blocking ring are fixedly connected with a rotating ring, and an inner side of the rotating ring is provided with a torsion spring.

[0010] Preferably, one end of the pull spring one is fixedly connected to a side of the round handle close to the submersible pump, and the other end of the pull spring one is fixedly connected to the outer portion of the rotating frame.

[0011] Preferably, one end of the pull spring two is fixedly connected to the bottom portion of the movable air disc, and the other end of the pull spring two is fixedly connected to the top portion of the fixed air disc.

[0012] Preferably, the bottom portion of the sliding stabilizing rod is fixedly connected with a limiting disc, and the outer portion of the movable air disc is slidably connected in the inner portion of the main air pipe.

[0013] Preferably, one end of the torsion spring is fixedly connected to the outer portion of the vent pipe, and the other end of the torsion spring is fixedly connected to the inner side of the rotating ring.

[0014] Preferably, the outer portion of the rotating ring is provided with anti-skid lines, and the inner side of the blocking ring is fixedly connected with a sealing gasket.

[0015] The present application provides a submersible pump sealing device. The present application has the following advantages:

[0016] 1、The present application through the installation sealing mechanism and the setting of air inlet mechanism, realized can in the joint of pump body again sealing, thereby can prevent the pump body after disassembly, the problem of sealing decline, in turn can further protect the pump body, prevent the pump body inside water, improve the service life of submersible pump, avoid economic loss.

[0017] 2、The present application through pre-installation mechanism can quickly position the sealing device, convenient for installation, and can be installed outside the pump body, avoid the disassembly of pump body when installing sealing device, thereby avoid secondary damage the sealing of pump body, protect the pump body, at the same time can utilize installation sealing mechanism outside the pump body forms a layer of protective layer, in turn can protect the pump body, avoid the pump body is damaged by impact, protect the pump body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of the present application;

[0019] Figure 2 It is the structure diagram of the second sealing air bag in the present application;

[0020] Figure 3 It is the structure diagram of the installation sealing mechanism in the present application;

[0021] Figure 4 It is the structure diagram of the pre-installation mechanism in the present application;

[0022] Figure 5 It is the structure diagram of the clamping hole in the present application;

[0023] Figure 6 It is the structure diagram of the main air pipe in the present application;

[0024] Figure 7 It is the structure diagram of the fixed ventilation disc in the present application;

[0025] Figure 8 It is the structure diagram of the fixed blocking ring in the present application;

[0026] Figure 9 It is the structure diagram of the pressure relief mechanism in the present application;

[0027] Figure 10 It is the internal structure diagram of the rotating ring in the present application;

[0028] Figure 11 It is the structure diagram of the air release pipe in the present application.

[0029] Wherein, 1, submersible pump; 2, installation sealing mechanism; 201, collar; 202, stable air bag; 203, connecting frame; 204, fixed ring; 205, sealing air bag one; 206, fixed sleeve; 207, sealing air bag two; 3, pre-installation mechanism; 301, rotating frame; 302, sliding rod; 303, pull spring one; 304, clamping hole; 305, round handle; 4, air inlet mechanism; 401, main air pipe; 402, fixed air disc; 403, sliding stabilizing rod; 404, moving air disc; 405, pull spring two; 406, fixed blocking ring; 407, limiting disc; 408, secondary pipe one; 409, secondary pipe two; 5, pressure relief mechanism; 501, air release pipe; 502, air release groove; 503, blocking ring; 504, alignment groove; 505, rotating ring; 506, torsional spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to the accompanying drawings of the present application Figure 1 - the accompanying drawings of the present application Figure 11 The embodiment of the present application provides a submersible pump sealing device, which comprises a submersible pump 1, an installation sealing mechanism 2 is arranged outside the submersible pump 1, a pre-installation mechanism 3 is arranged at the top of the installation sealing mechanism 2, the pre-installation mechanism 3 is used for installing the installation sealing mechanism 2, an air inlet mechanism 4 is arranged outside the installation sealing mechanism 2, the air inlet mechanism 4 is used for filling air pressure into the inside of the installation sealing mechanism 2, a pressure relief mechanism 5 is arranged outside the air inlet mechanism 4, and the pressure relief mechanism 5 is used for discharging air pressure inside the installation sealing mechanism 2 and the air inlet mechanism 4.

[0032] The installation sealing mechanism 2 comprises a collar 201, the inner side of the collar 201 is fixedly connected with a stabilizing air bag 202, the upper and lower sides of the collar 201 are fixedly connected with connecting frames 203, the connecting frames 203 can be tightly attached to the outside of the submersible pump 1 after being inflated, so that the installation sealing mechanism 2 can be installed, the top of the upper connecting frame 203 is fixedly connected with a fixed ring 204, the inside of the fixed ring 204 is fixedly connected with a sealing air bag one 205, the bottom of the lower connecting frame 203 is fixedly connected with a fixed sleeve 206, the inner side of the fixed sleeve 206 is fixedly connected with a sealing air bag two 207, the sealing air bag one 205 and the sealing air bag two 207 can be tightly attached to the joint of the submersible pump 1 after being inflated, so that the sealing performance can be improved, when the gas enters the inside of the fixed ring 204, the fixed sleeve 206 and the collar 201 through the air inlet mechanism 4, at this time, the sealing air bag one 205, the sealing air bag two 207 and the stabilizing air bag 202 are blown up by the gas, then the sealing air bag one 205 and the sealing air bag two 207 can be tightly attached to the joint of the submersible pump 1, so that the sealing performance of the submersible pump 1 can be improved, the sealing performance of the submersible pump 1 caused by the maintenance can be avoided, at the same time, the inflation of the stabilizing air bag 202 can be pressed on the outside of the submersible pump 1, then the installation sealing mechanism 2 can be installed on the outside of the submersible pump 1.

[0033] The pre-installation mechanism 3 comprises a plurality of rotating frames 301, which provide installation positions, and the outer portions of the plurality of rotating frames 301 are respectively rotationally connected to the upper and lower sides of the outer portion of the fixing ring 204, the top portion of the rotating frame 301 is slidingly connected with a sliding rod 302, the sliding rod 302 can slide in the inner portion of the rotating frame 301, the outer portion of the sliding rod 302 is sleeved with a tension spring I 303, a plurality of clamping holes 304 are formed in the outer portion of the submersible pump 1, after the sliding rod 302 is inserted into the inner portion of the clamping hole 304, the fixing ring 204 can be installed on the submersible pump 1, so that the installation sealing mechanism 2 can be pre-installed on the outer portion of the submersible pump 1, the end of the sliding rod 302 away from the submersible pump 1 is fixedly connected with a round handle 305, the round handle 305 is convenient to pull, and the tension spring I 303 can also be used, one end of the tension spring I 303 is fixedly connected to the side of the round handle 305 close to the submersible pump 1, the other end of the tension spring I 303 is fixedly connected to the outer portion of the rotating frame 301, when the installation sealing mechanism 2 is installed, first, the installation sealing mechanism 2 is sleeved on the outer portion of the submersible pump 1, and the fixing ring 204 is attached to the fixing sleeve 206 at the interface of the submersible pump 1, the rotating frame 301 is flipped upward, and the round handle 305 is pulled away from the submersible pump 1, when the sliding rod 302 is rotated to the clamping hole 304, the round handle 305 is loosened, under the action of the tension of the tension spring I 303, the round handle 305 can be moved toward the submersible pump 1, the sliding rod 302 can be moved toward the submersible pump 1, the sliding rod 302 is inserted into the inner portion of the clamping hole 304, so that the pre-installation of the installation sealing mechanism 2 is completed, when the inner portion of the installation sealing mechanism 2 is decompressed, the installation sealing mechanism 2 is disassembled, the round handle 305 is pulled, the rotating frame 301 is rotated downward, so that the installation sealing mechanism 2 can be disassembled from the submersible pump 1.

[0034] The air inlet mechanism 4 comprises a main air pipe 401 which provides an air passage and can provide a mounting position, the top of the main air pipe 401 is fixedly connected outside the fixed ring 204, the inner bottom end of the main air pipe 401 is fixedly connected with a fixed air disc 402 which provides a mounting position, the middle part of the fixed air disc 402 is slidingly connected with a sliding stabilizing rod 403 which plays a connecting role, the top of the sliding stabilizing rod 403 is fixedly connected with a moving air disc 404, the outside of the sliding stabilizing rod 403 is sleeved with a pull spring two 405 which can pull the moving air disc 404 back to position, the inside of the main air pipe 401 is fixedly connected with a fixed blocking ring 406 which is blocked at the groove of the moving air disc 404, so as to prevent the gas in the mounting sealing mechanism 2 from being discharged through the main air pipe 401, the outside of the main air pipe 401 is fixedly connected with a secondary pipe one 408 which is used to connect the fixed sleeve 206, the outside of the main air pipe 401 is fixedly connected with a secondary pipe two 409 which is used to connect the sleeve ring 201, the bottom of the secondary pipe one 408 is fixedly connected outside the fixed sleeve 206, the end of the secondary pipe two 409 away from the main air pipe 401 is fixedly connected outside the sleeve ring 201, one end of the pull spring two 405 is fixedly connected at the bottom of the moving air disc 404, the other end of the pull spring two 405 is fixedly connected at the top of the fixed air disc 402, the bottom of the sliding stabilizing rod 403 is fixedly connected with a limiting disc 407, the outside of the moving air disc 404 is slidingly connected inside the main air pipe 401, when the inside of the air inlet mechanism 4 is filled with air, the gas can push the moving air disc 404 upward through the air passage on the fixed air disc 402 and the middle part of the fixed blocking ring 406, at this time, the groove at the edge of the moving air disc 404 is not blocked by the fixed blocking ring 406, so that the gas can enter the inside of the secondary pipe one 408 and the secondary pipe two 409, and then can reach the inside of the sleeve ring 201, the fixed ring 204 and the fixed sleeve 206, when the air pressure in the mounting sealing mechanism 2 reaches the same pressure as the filled air pressure, at this time, the moving air disc 404 can be moved downward under the pulling force of the pull spring two 405, and the groove of the moving air disc 404 is blocked by the fixed blocking ring 406 again, when the gas source is removed from the bottom of the main air pipe 401, the groove on the moving air disc 404 is blocked by the fixed blocking ring 406, so as to prevent the gas in the mounting sealing mechanism 2 from being discharged, and then the air pressure in the mounting sealing mechanism 2 can be maintained.

[0035] The pressure relief mechanism 5 comprises a gas exhaust pipe 501, one end of the gas exhaust pipe 501 is fixedly connected to the outside of the main gas pipe 401, a gas exhaust groove 502 is formed in the outer wall of the gas exhaust pipe 501, a blocking ring 503 is rotatably connected to the outside of the gas exhaust pipe 501, the blocking ring 503 can block the gas exhaust groove 502 to keep the gas exhaust pipe 501 sealed, an alignment groove 504 is formed in the outer wall of the blocking ring 503, the alignment groove 504 can exhaust the gas in the air inlet mechanism 4 and the installation sealing mechanism 2 after aligning with the gas exhaust groove 502, so as to reduce the gas pressure, thereby facilitating the disassembly and installation of the installation sealing mechanism 2, rotating rings 505 are fixedly connected to both ends of the blocking ring 503, the rotating rings 505 can be easily rotated to drive the blocking ring 503 to rotate, torsional springs 506 are arranged on the inner side of the rotating rings 505, the torsional springs 506 can drive the rotating rings 505 to automatically reset, one end of the torsional spring 506 is fixedly connected to the outside of the gas exhaust pipe 501, the other end of the torsional spring 506 is fixedly connected to the inner side of the rotating ring 505, anti-skid lines are arranged on the outside of the rotating ring 505, and sealing pads are fixedly connected to the inner side of the blocking ring 503, when it is needed to exhaust the gas in the installation sealing mechanism 2, the rotating ring 505 is rotated to compress the torsional spring 506, the alignment groove 504 on the blocking ring 503 is aligned with the gas exhaust groove 502, the gas in the air inlet mechanism 4 is exhausted, the gas in the installation sealing mechanism 2 is further exhausted, and after the gas is exhausted, the rotating ring 505 is loosened and automatically resets under the driving of the torsional spring 506, the rotating ring 505 drives the blocking ring 503 to reset so that the alignment groove 504 is disengaged from the gas exhaust groove 502, and the blocking ring 503 continues to block the gas exhaust groove 502 to keep the air inlet mechanism 4 sealed.

[0036] Working principle: when the air inlet mechanism 4 is filled with gas, the gas can lift the movable air inlet disc 404 upward through the air inlet groove in the fixed air inlet disc 402 and the middle part of the fixed blocking ring 406, at this time, the groove in the edge of the movable air inlet disc 404 is not blocked by the fixed blocking ring 406, so that the gas can enter the inside of the auxiliary pipe one 408 and the auxiliary pipe two 409, and then reach the inside of the sleeve ring 201, the fixed ring 204 and the fixed sleeve 206, when the gas pressure in the installation sealing mechanism 2 reaches the same pressure as the filled gas pressure, the movable air inlet disc 404 can move downward under the tension of the tension spring two 405, and the groove in the movable air inlet disc 404 is blocked by the fixed blocking ring 406, the gas source is removed from the bottom of the main gas pipe 401, the groove in the movable air inlet disc 404 is blocked by the fixed blocking ring 406, so as to prevent the gas in the installation sealing mechanism 2 from being exhausted, thereby keeping the gas pressure in the installation sealing mechanism 2;

[0037] When the gas enters the inside of the fixed ring 204, the fixed sleeve 206 and the sleeve ring 201 through the main gas pipe 401, the secondary pipe one 408 and the secondary pipe two 409, the sealing air bag one 205, the sealing air bag two 207 and the stabilizing air bag 202 are blown up by the gas, then the sealing air bag one 205 and the sealing air bag two 207 can be tightly attached to the interface of the submersible pump 1, so as to improve the sealing performance of the submersible pump 1, avoid the sealing performance of the submersible pump 1 from being not tight due to the maintenance, and the swelling of the stabilizing air bag 202 can be pressed on the outside of the submersible pump 1, then the installation sealing mechanism 2 can be installed on the outside of the submersible pump 1.

[0038] When the installation sealing mechanism 2 is installed, the installation sealing mechanism 2 is first sleeved on the outside of the submersible pump 1, the fixed ring 204 and the fixed sleeve 206 are attached to the interface of the submersible pump 1, the rotating frame 301 is turned up, the circular handle 305 is pulled away from the submersible pump 1, when the sliding rod 302 is rotated to the clamping hole 304, the circular handle 305 is loosened, under the action of the tension spring one 303, the circular handle 305 can be moved towards the submersible pump 1, the sliding rod 302 can be moved towards the submersible pump 1, the sliding rod 302 is inserted into the inside of the clamping hole 304, so as to complete the pre-installation of the installation sealing mechanism 2, when the air pressure in the installation sealing mechanism 2 is discharged, the installation sealing mechanism 2 is disassembled, only the circular handle 305 is pulled, the rotating frame 301 is turned down, so as to disassemble the installation sealing mechanism 2 from the submersible pump 1.

[0039] When the air pressure in the installation sealing mechanism 2 needs to be discharged, the rotating ring 505 is rotated, so as to compress the torsional spring 506, the alignment groove 504 on the blocking ring 503 is aligned with the air discharge groove 502, then the gas in the air inlet mechanism 4 is discharged, further the gas in the installation sealing mechanism 2 is discharged, after the gas is discharged, the rotating ring 505 is loosened, under the action of the torsional spring 506, the rotating ring 505 is automatically reset, so as to drive the blocking ring 503 to reset, the alignment groove 504 is misaligned with the air discharge groove 502, so as to continue to block the air discharge groove 502 by the blocking ring 503, and the sealing performance of the air inlet mechanism 4 is maintained.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A submersible pump sealing device, comprising a submersible pump (1), characterized in that, The submersible pump (1) is provided with an installation sealing mechanism (2) on the outside. The installation sealing mechanism (2) is provided with a pre-installation mechanism (3) on the top. The pre-installation mechanism (3) is used to install the installation sealing mechanism (2). The installation sealing mechanism (2) is provided with an air intake mechanism (4) on the outside. The air intake mechanism (4) is used to fill the interior of the installation sealing mechanism (2) with air pressure. The air intake mechanism (4) is provided with a pressure relief mechanism (5) on the outside. The pressure relief mechanism (5) is used to discharge the air pressure inside the installation sealing mechanism (2) and the air intake mechanism (4).

2. The submersible pump sealing device according to claim 1, characterized in that, The sealing mechanism (2) includes a collar (201), a stabilizing airbag (202) is fixedly connected to the inner side of the collar (201), and connecting frames (203) are fixedly connected to both the upper and lower sides of the collar (201). A fixing ring (204) is fixedly connected to the top of the upper connecting frame (203), and a sealing airbag (205) is fixedly connected to the inside of the fixing ring (204). A fixing sleeve (206) is fixedly connected to the bottom of the lower connecting frame (203), and a sealing airbag (207) is fixedly connected to the inner side of the fixing sleeve (206).

3. A submersible pump sealing device according to claim 2, characterized in that, The pre-installation mechanism (3) includes multiple rotating frames (301), and the exterior of the multiple rotating frames (301) is rotatably connected to the upper and lower sides of the exterior of the fixed ring (204). A sliding rod (302) is slidably connected to the top of the rotating frame (301), and a tension spring (303) is sleeved on the exterior of the sliding rod (302). Multiple engaging holes (304) are opened on the exterior of the submersible pump (1), and a round handle (305) is fixedly connected to the end of the sliding rod (302) away from the submersible pump (1).

4. A submersible pump sealing device according to claim 2, characterized in that, The air intake mechanism (4) includes a main air pipe (401). The top of the main air pipe (401) is fixedly connected to the outside of the fixed ring (204). A fixed venting disc (402) is fixedly connected to the bottom of the main air pipe (401). A sliding stabilizing rod (403) is slidably connected to the middle of the fixed venting disc (402). A movable venting disc (404) is fixedly connected to the top of the sliding stabilizing rod (403). A sleeve is provided on the outside of the sliding stabilizing rod (403). A tension spring (405) is provided. A fixed retaining ring (406) is fixedly connected inside the main air pipe (401). A secondary pipe (408) is fixedly connected outside the main air pipe (401). A secondary pipe (409) is fixedly connected outside the main air pipe (401). The bottom of the secondary pipe (408) is fixedly connected outside the fixed sleeve (206). The end of the secondary pipe (409) away from the main air pipe (401) is fixedly connected outside the collar (201).

5. A submersible pump sealing device according to claim 4, characterized in that, The pressure relief mechanism (5) includes a vent pipe (501), one end of which is fixedly connected to the outside of the main air pipe (401). A vent groove (502) is provided on the outer wall of the vent pipe (501). A retaining ring (503) is rotatably connected to the outside of the vent pipe (501). An alignment groove (504) is provided on the outer wall of the retaining ring (503). A rotating ring (505) is fixedly connected to both ends of the retaining ring (503). A torsion spring (506) is provided on the inner side of the rotating ring (505).

6. A submersible pump sealing device according to claim 3, characterized in that, One end of the tension spring (303) is fixedly connected to the side of the round handle (305) near the submersible pump (1), and the other end of the tension spring (303) is fixedly connected to the outside of the rotating frame (301).

7. A submersible pump sealing device according to claim 4, characterized in that, One end of the second tension spring (405) is fixedly connected to the bottom of the movable ventilator (404), and the other end of the second tension spring (405) is fixedly connected to the top of the fixed ventilator (402).

8. A submersible pump sealing device according to claim 4, characterized in that, The bottom of the sliding stabilizer bar (403) is fixedly connected to the limiting plate (407), and the outside of the movable ventilation plate (404) is slidably connected to the inside of the main air pipe (401).

9. A submersible pump sealing device according to claim 5, characterized in that, One end of the torsion spring (506) is fixedly connected to the outside of the vent pipe (501), and the other end of the torsion spring (506) is fixedly connected to the inside of the rotating ring (505).

10. A submersible pump sealing device according to claim 5, characterized in that, The rotating ring (505) has anti-slip texture on its outer side, and a sealing gasket is fixedly connected to the inner side of the retaining ring (503).

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