Tail water lifting pump station for sewage treatment

Abstract

The invention discloses a tail water lifting pump station for sewage treatment, and relates to the field of sewage treatment. The tail water lifting pump station for sewage treatment comprises a storage unit, a supporting unit, a water inlet unit and a water outlet unit. According to the tail water lifting pump station for sewage treatment, the water outlet unit comprises the multiple submersible pumps and the water outlet pipe, meanwhile, the improved self-coupling bases are arranged between the submersible pumps and the water outlet pipe one by one, the movable guide rail pieces are arranged between the multiple submersible pumps and the water outlet pipe, and any submersible pump can be selectively guided and lifted through the movable guide rail pieces; and meanwhile, a self-locking piece is arranged on the improved self-coupling base, the fixing effect of the submersible pump can be improved through the self-locking piece, meanwhile, when the movable guide rail piece is connected with the improved self-coupling base, the self-locking piece can be automatically unlocked, and therefore the installation and overhaul difficulty of the submersible pump is lowered.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a tailwater lifting pump station for sewage treatment. Background Art

[0002] The tailwater lift pump station is a relay station used for sewage treatment. It is connected to the sewage pipe network to guide the sewage into the storage space of the pump station, and then uses the liquid level sensor to monitor the liquid level. When the liquid level reaches the specified height, the submersible pump is started to lift the sewage upward, so that the sewage can enter the next level treatment system.

[0003] When a traditional tailwater lifting pump station is in use, its water inlet is usually directly connected to the sewage pipe network, so the diameter of the water inlet pipe is relatively large, while the outlet pipe is usually set to be small. Therefore, in order to meet the large-flow sewage lifting operation in a short period of time, multiple sets of outlet pipes are usually set, and each set of outlet pipes is equipped with a set of submersible pumps for use. In order to facilitate maintenance, the submersible pump is usually installed with a self-coupling base between the outlet pipe, and the submersible pump is guided up and down by a guide rod. During installation, the submersible pump slides to the bottom along the guide rod under the action of gravity, and is connected to the outlet pipe through the self-coupling base. The connection is designed with self-coupling, resulting in very small leakage, so there is basically no impact during the sewage discharge process; However, there are two key problems with the above traditional design method: 1. The design of multiple outlet pipes will inevitably require multiple guide rail systems to be set up in the storage space of the lifting pump station for multiple submersible pumps to move up and down, which divides the internal maintenance operation space and is inconvenient for internal impurity cleaning and maintenance operations; Second, the existing auto-coupling base purely relies on the gravity of the submersible pump to connect the submersible pump to the inner end of the outlet pipe. However, there is usually silt accumulation at the bottom of the lifting pump station. The density of silt is much greater than the buoyancy of water. This leads to the submersible pump being prone to slipping during use if it is not counterweighted. If the counterweight is added, the difficulty of lifting the submersible pump during maintenance will be greatly increased. In order to solve the above problems, a tailwater lifting pump station for sewage treatment is provided. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a tailwater lift pump station for sewage treatment, which solves the problem of the existing sewage treatment lift pump station having a divided internal maintenance operation space, which is inconvenient for cleaning internal impurities and maintenance operations, and also solves the problem of unstable connection between the submersible pump and the outlet pipe through the autocoupling base.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A tailwater lifting pump station for sewage treatment, comprising: Storage unit; A supporting unit, which is arranged at the bottom of the storage unit and is used to prevent the storage unit from collapsing downwards; A water inlet unit, which is arranged at one side of the storage unit; a water outlet unit, which is arranged on the other side of the storage unit; The water outlet unit comprises: a water outlet pipe fixedly extending through a side wall of the storage unit; a submersible pump disposed inside the storage unit; An improved auto-coupling base, which is connected between the water outlet pipe and the submersible pump; A movable guide rail member is laterally slidably arranged between a plurality of improved auto-coupling bases, and is used for a plurality of submersible pumps to be disassembled and assembled by moving up and down along the movable guide rail member; The improved auto-coupling base is provided with a self-locking part, which is used to fix the submersible pump, and the movable guide rail part moves downward to drive the self-locking part to open.

[0006] Preferably, the storage unit comprises: Cylinder; A pump inspection port is provided on one side of the top of the cylinder, and the movable guide member is located below the pump inspection port; A ventilation pipe fixedly penetrates the top wall of the cylinder; A feed inspection port is provided on the other side of the top of the cylinder, and the water inlet unit is located below the feed inspection port; A liquid level sensor is fixedly arranged on the inner wall of the cylinder; The maintenance ladder is fixedly installed on the inner wall of the cylinder.

[0007] Preferably, the support unit comprises: Concrete pad; The embedded base plate of the foundation is arranged on the top of the concrete cushion layer; The cast-in-place fixing seat is cast and fixed on the top of the embedded base plate of the foundation, and the cylinder is fixed in the middle of the cast-in-place fixing seat.

[0008] Preferably, the water inlet unit comprises: A water inlet pipe, which is fixed and penetrates the side wall of the cylinder; A filter screen basket is slidably disposed on the inner end of the water inlet pipe; A support frame is fixedly arranged on the side wall of the cylinder, and the bottom of the filter grid basket abuts against the top of the support frame; The basket slide rail is fixedly mounted on the support frame, and its top end extends into the feed inspection port; A positioning connecting pipe, which is fixedly welded to the outer wall of the filter grid basket and movably sleeved on the outer surface of the basket slide rail; An anti-tilt fixing frame is fixed on the side wall of the feed inspection port by bolts; The anti-roll link is fixedly arranged on the top of the positioning connecting pipe, and the bottom of the anti-roll fixing frame is movably connected with the anti-roll link.

[0009] Preferably, the movable guide rail member comprises: A vertical rail, which is arranged in the cylinder; N-type support rail, which is fixedly arranged at the bottom of the cylinder; A horizontal rail fixedly disposed in the pump inspection opening; Movable slots are provided at both ends of the vertical rails; An ejector pin is fixedly arranged at the bottom end of the vertical rail; Two sets of horizontal sliding positioning members, both ends of which are slidably arranged in the movable grooves, and the middle parts of the two sets of horizontal sliding positioning members are slidably arranged on the N-shaped support rail and the outer surface of the horizontal rail respectively; A lifting handle, which is fixedly arranged on the top of the vertical rail; A positioning shaft, which is fixedly arranged at the bottom of the lifting handle; A positioning hole is provided on the outer surface of the horizontal rail, and the positioning hole corresponds to the improved auto-coupling base one by one, and the bottom end of the positioning shaft is movably inserted in the positioning hole.

[0010] Preferably, the improved autocoupling base comprises: A fixed support, which is fixedly arranged at the bottom of the cylinder; A connecting pipe, one end of which is connected to the water outlet pipe; The autocoupler frame is fixedly installed at the output end of the submersible pump and is movably connected with the other end of the connecting pipe; A mounting seat, which is fixedly welded to the middle of the fixed support; A guide rod, which is fixedly mounted on the top of the mounting seat; Limiting grooves are provided on both sides of the top of the autocoupler frame, and the autocoupler frame slides on the outer surface of the guide rod and the vertical rail through the limiting grooves; The self-locking piece is installed in the fixed support, and the self-locking piece is movably connected with the self-coupling frame.

[0011] Preferably, the self-locking member comprises: The F-shaped side flip lock arm is rotatably arranged on both sides of the fixed support, and its top end is movably connected with the top of the auto-coupling frame; A J-shaped front flip lock arm is rotatably arranged in the middle of the fixed support and is movably connected with the output end of the submersible pump; The driving shaft is slidably arranged inside the guide rod, the top end of the driving shaft is matched with the ejector pin, and the bottom end of the driving shaft is transmission-connected with the F-type side flip lock arm and the J-type front flip lock arm.

[0012] Preferably, a trapezoidal support is fixedly provided on the fixed support, the J-shaped front flip locking arm is movably hinged in the trapezoidal support, and a locking spring is fixedly installed between the end of the J-shaped front flip locking arm and the trapezoidal support, and a connecting shaft is movably provided at the end of the F-shaped side flip locking arm, and the connecting shaft is movably connected to the J-shaped front flip locking arm.

[0013] Preferably, a hinged portion is integrally formed on the outer surface of the F-type side flip lock arm, and the hinged portion is rotatably connected to the inside of a fixed support. A connecting groove is provided at the end of the F-type side flip lock arm, and a traction portion is slidably arranged inside the connecting groove, and both ends of the connecting shaft are fixedly connected to two sets of traction portions.

[0014] Preferably, a rectangular groove is provided in the middle of the J-shaped front flip lock arm, a lifting spring is provided at the inner bottom end of the guide rod, a sliding groove is provided on the bottom side wall of the guide rod, a horizontal axis is slidably connected inside the sliding groove, both ends of the horizontal axis are fixedly welded to the bottom ends of the two groups of driving shafts, and the horizontal axis and the connecting shaft are both slidably connected in the rectangular groove.

[0015] The invention discloses a tailwater lifting pump station for sewage treatment, which has the following beneficial effects: 1. In the tailwater lifting pump station for sewage treatment, when installing the submersible pump, the submersible pump is sleeved on the outer surface of the vertical rail through the limiting groove on the autocoupler, and the submersible pump is slowly lowered so that the autocoupler enters the outer surface of the guide rod. At this time, the end face of the autocoupler and the end face of the connecting pipe fit each other under the influence of the gravity of the submersible pump, and the lifting handle is pulled upward to move the ejector pin out from the inside of the guide rod. At this time, under the action of the lifting spring and the locking spring, the front end of the J-type front flip lock arm flips upward, so that the front end of the J-type front flip lock arm is stuck in the flange slot at the output end of the submersible pump, and at the same time, the J-type front flip lock arm pushes the end of the F-type side flip lock arm to move upward through the connecting shaft, so that the top end of the F-type side flip lock arm is stuck on the top of the autocoupler, thereby self-locking the autocoupler. During the use of the submersible pump, the self-locking member is used to ensure the tightness of the connection with the connecting pipe.

[0016] 2. The tailwater lifting pump station for sewage treatment is provided with a group of movable guide rails between a plurality of submersible pumps arranged side by side. When in use, the lifting handle is pulled upward to push the entire vertical rail along the horizontal rail to move the vertical rail to the target submersible pump position, and the lifting handle is released. At this time, the vertical rail naturally falls, and the ejector pin at the bottom thereof is inserted into the guide rod. Under the action of gravity of the vertical rail, the ejector pin presses the driving shaft downward to make the horizontal shaft slide inside the rectangular groove, so that the front end of the J-shaped front flip lock arm is moved out of the flange slot at the output end of the submersible pump, and at the same time, the end of the F-shaped side flip lock arm is pulled downward by the traction parts at both ends through the connecting shaft, so that the top end of the F-shaped side flip lock arm is moved away from the top of the self-coupling frame, thereby releasing the locking of the self-locking member on the self-coupling frame, and then the submersible pump is lifted and moved out along the guide rod and the vertical rail, thereby reducing the track layout and the occupation of the maintenance space inside the cylinder, and at the same time, the self-locking member can be unlocked.

[0017] 3. The tailwater lifting pump station used for sewage treatment opens the feed inspection port, then removes the bolts between the anti-tilt fixing frame and the feed inspection port, removes the anti-tilt fixing frame, and then pulls the anti-tilt connecting rod upward to drive the filter grille basket to slide upward along the basket slide rail and move out of the cylinder through the positioning connecting pipe, so as to facilitate the cleaning of large-volume impurities retained inside the filter grille basket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall outer surface structure of the present invention; Figure 2 It is a schematic diagram of the internal cross-section of the cylinder of the present invention; Figure 3 It is a cross-sectional view of the internal structure of the cylinder of the present invention; Figure 4 This is a schematic diagram of the structure of the water outlet unit of the present invention; Figure 5 It is a schematic diagram of the structure of the movable guide rail member of the present invention; Figure 6 It is a schematic diagram of the outer surface structure of the submersible pump and the improved auto-coupling base of the present invention; Figure 7 It is a schematic diagram of the side structure of the submersible pump and the improved auto-coupling base of the present invention; Figure 8 It is an exploded view of the submersible pump and the improved auto-coupling base structure of the present invention; Fig. 9 This is a schematic diagram of the bottom structure of the improved auto-coupling base of the present invention; Fig.10 It is a schematic diagram of the structure of the self-locking member of the present invention; Fig.11 It is a schematic diagram of the structure of the water inlet unit of the present invention.

[0020] In the figure: 1, storage unit; 11, cylinder; 12, pump inspection port; 13, ventilation pipe; 14, feed inspection port; 15, liquid level sensor; 16, inspection ladder; 2. Support unit; 21. Concrete cushion layer; 22. Pre-buried foundation slab; 23. Cast-in-place fixing seat; 3. Water inlet unit; 31. Water inlet pipe; 32. Filter grille basket; 33. Support frame; 34. Basket slide rail; 35. Positioning connecting pipe; 36. Anti-tilt fixing frame; 37. Anti-tilt connecting rod; 4. Water outlet unit; 41. Water outlet pipe; 42. Submersible pump; 43. Movable guide rail; 44. Improved auto-coupling base; 431, vertical rail; 432, N-type support rail; 433, horizontal rail; 434, movable groove; 435, ejector pin; 436, horizontal sliding positioning piece; 437, lifting handle; 438, positioning shaft; 439, positioning hole; 441, fixed support; 442, connecting pipe; 443, self-coupling frame; 444, self-locking member; 445, mounting seat; 446, guide rod; 447, limit groove; 448, slide groove; 4441. F-type side flip lock arm; 4442. J-type front flip lock arm; 4443. driving shaft; 4444. lifting spring; 4445. trapezoidal support; 4446. locking spring; 4447. rectangular groove; 4448. horizontal axis; 4449. hinged part; 44410. traction part; 44411. connecting shaft. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The embodiment of the present application provides a tailwater lift pump station for sewage treatment, thereby solving the problem of existing sewage treatment lift pump stations having a divided internal maintenance operation space, which is inconvenient for cleaning internal impurities and maintenance operations, and a problem of unstable connection between the submersible pump and the outlet pipe through the autocoupling base.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] An embodiment of the present invention discloses a tailwater lifting pump station for sewage treatment.

[0025] According to the attached Figure 1-11 As shown, including; Storage unit 1, storage unit 1 includes a cylinder 11, a pump inspection port 12, a ventilation pipe 13, a feed inspection port 14, a liquid level sensor 15 and an inspection ladder 16, the pump inspection port 12 is arranged on one side of the top of the cylinder 11, and the movable guide rail member 43 is located below the pump inspection port 12; the ventilation pipe 13 is fixedly passed through the top wall of the cylinder 11; the feed inspection port 14 is arranged on the other side of the top of the cylinder 11, and the water inlet unit 3 is located below the feed inspection port 14; the liquid level sensor 15 is fixedly arranged on the inner wall of the cylinder 11; the inspection ladder 16 is fixedly installed on the inner wall of the cylinder 11.

[0026] A supporting unit 2, which is arranged at the bottom of the storage unit 1 and is used to prevent the storage unit 1 from collapsing downwards; The support unit 2 includes a concrete cushion layer 21, a foundation embedded bottom plate 22 and a cast-in-place fixing seat 23. The foundation embedded bottom plate 22 is arranged on the top of the concrete cushion layer 21; the cast-in-place fixing seat 23 is fixedly cast on the top of the foundation embedded bottom plate 22, and the cylinder 11 is fixed to the middle of the cast-in-place fixing seat 23.

[0027] A water inlet unit 3, which is arranged at one side of the storage unit 1; The water inlet unit 3 includes: an inlet pipe 31, a filter grille basket 32, a support frame 33, a basket slide rail 34, a positioning connecting pipe 35, an anti-tilt fixing frame 36 and an anti-tilt connecting rod 37. The water inlet pipe 31 is fixedly penetrated through the side wall of the cylinder 11; the filter grille basket 32 ​​is slidably arranged at the inner end of the water inlet pipe 31; the support frame 33 is fixedly arranged on the side wall of the cylinder 11, and the bottom of the filter grille basket 32 ​​is against the top of the support frame 33; the basket slide rail 34 is fixedly arranged on the support frame 33, and its top end extends into the feed inspection port 14; the positioning connecting pipe 35 is fixedly welded to the outer wall of the filter grille basket 32, and it is movably sleeved on the outer surface of the basket slide rail 34; the anti-tilt fixing frame 36 is fixedly installed on the side wall of the feed inspection port 14 by bolts; the anti-tilt connecting rod 37 is fixedly arranged on the top of the positioning connecting pipe 35, and the bottom of the anti-tilt fixing frame 36 is movably engaged with the anti-tilt connecting rod 37. A water outlet unit 4, which is arranged on the other side of the storage unit 1; The water outlet unit 4 includes a water outlet pipe 41, a submersible pump 42, a movable guide member 43 and an improved autocoupler base 44, the water outlet pipe 41 is fixedly passed through the side wall of the storage unit 1; the submersible pump 42 is arranged inside the storage unit 1; the improved autocoupler base 44 is connected between the water outlet pipe 41 and the submersible pump 42; the movable guide member 43 is laterally slidably arranged between multiple improved autocoupler bases 44, and is used for multiple submersible pumps 42 to move up and down along the movable guide member 43 for disassembly and assembly; a self-locking member 444 is arranged on the improved autocoupler base 44, the self-locking member 444 is used to fix the submersible pump 42, and the movable guide member 43 moves downward to drive the self-locking member 444 to open. The movable guide rail member 43 includes a vertical rail 431, an N-type support rail 432, a horizontal rail 433, a movable groove 434, a pin 435, two sets of horizontal sliding positioning members 436, a lifting handle 437, a positioning shaft 438 and a positioning hole 439. The vertical rail 431 is arranged in the cylinder 11; the N-type support rail 432 is fixedly arranged at the bottom of the cylinder 11; the horizontal rail 433 is fixedly arranged in the pump inspection port 12; the movable groove 434 is opened at both ends of the vertical rail 431; the pin 435 is fixedly arranged at the bottom of the vertical rail 431; The two ends of the two groups of horizontal sliding positioning members 436 are slidably set in the movable groove 434, and the middle parts of the two groups of horizontal sliding positioning members 436 are respectively slidably set on the outer surfaces of the N-shaped support rail 432 and the horizontal rail 433; the pulling handle 437 is fixedly set on the top of the vertical rail 431; the positioning shaft 438 is fixedly set at the bottom of the pulling handle 437, and the positioning hole 439 is opened on the outer surface of the horizontal rail 433, and the positioning hole 439 corresponds to the improved autocoupling base 44 one by one, and the bottom end of the positioning shaft 438 is movably inserted in the positioning hole 439.

[0028] The improved autocoupler base 44 includes a fixed support 441, a connecting pipe 442, an autocoupler frame 443, a self-locking member 444, a mounting seat 445, a guide rod 446, a limiting groove 447 and a slide groove 448. The fixed support 441 is fixedly arranged at the bottom of the cylinder 11; one end of the connecting pipe 442 is connected to the water outlet pipe 41; the autocoupler frame 443 is fixedly installed at the output end of the submersible pump 42, and it is movably connected with the other end of the connecting pipe 442; the mounting seat 445 is fixedly welded to the middle of the fixed support 441; the guide rod 446 is fixedly installed on the top of the mounting seat 445; the limiting grooves 447 are opened on both sides of the top of the autocoupler frame 443, and the autocoupler frame 443 slides on the guide rod 446 and the outer surface of the vertical rail 431 through the limiting grooves 447; the self-locking member 444 is installed in the fixed support 441, and the self-locking member 444 is movably connected with the autocoupler frame 443.

[0029] The self-locking member 444 includes an F-shaped side flip lock arm 4441, a J-shaped front flip lock arm 4442, a drive shaft 4443, a lifting spring 4444, a trapezoidal support 4445, a locking spring 4446, a rectangular groove 4447, a horizontal shaft 4448, a hinged portion 4449, a traction portion 44410 and a connecting shaft 44411; The F-shaped side flip lock arm 4441 is rotatably disposed on both sides of the fixed support 441, and its top end is movably engaged with the top of the self-coupling frame 443; The J-shaped front flip lock arm 4442 is rotatably arranged in the middle of the fixed support 441, and a flange is arranged on the output end of the submersible pump 42, and a flange slot is opened on the flange, and the end of the J-shaped front flip lock arm 4442 is inserted into the flange slot to realize active connection with the submersible pump 42; The driving shaft 4443 is slidably disposed inside the guide rod 446 , the top end of the driving shaft 4443 is matched with the ejector pin 435 , and the bottom end of the driving shaft 4443 is transmission-connected with the F-shaped side flip lock arm 4441 and the J-shaped front flip lock arm 4442 .

[0030] A trapezoidal support 4445 is fixedly provided on the fixed support 441, the J-shaped front flip locking arm 4442 is movably hinged in the trapezoidal support 4445, and a locking spring 4446 is fixedly installed between the end of the J-shaped front flip locking arm 4442 and the trapezoidal support 4445, and a connecting shaft 44411 is movably provided at the end of the F-shaped side flip locking arm 4441, and the connecting shaft 44411 is movably connected to the J-shaped front flip locking arm 4442.

[0031] A hinge part 4449 is integrally formed on the outer surface of the F-type side flip lock arm 4441, and the hinge part 4449 is rotatably connected to the inside of the fixed support 441. A connecting groove is opened at the end of the F-type side flip lock arm 4441, and a traction part 44410 is slidably arranged inside the connecting groove. Both ends of the connecting shaft 44411 are fixedly connected to the two groups of traction parts 44410.

[0032] A rectangular groove 4447 is provided in the middle of the J-shaped front flip lock arm 4442, a lifting spring 4444 is provided at the inner bottom end of the guide rod 446, a sliding groove 448 is provided on the bottom side wall of the guide rod 446, and a horizontal axis 4448 is slidably connected inside the sliding groove 448. Both ends of the horizontal axis 4448 are fixedly welded to the bottom ends of the two sets of driving shafts 4443, and the horizontal axis 4448 and the connecting shaft 44411 are both slidably connected in the rectangular groove 4447.

[0033] Working principle: When the device is in use, the water inlet pipe 31 is connected to the external sewage network, so that the sewage is filtered out of large impurities through the filter grid basket 32 ​​and then flows into the cylinder 11. When the sewage level in the cylinder 11 reaches the height of the liquid level sensor 15, the liquid level sensor 15 gives a drainage signal to act on the submersible pump 42. At this time, the submersible pump 42 pumps the sewage in the cylinder 11 outward and discharges it through the outlet pipe 41. The operator needs to perform regular inspection and maintenance on the inside of the cylinder 11 by opening the feed inspection port 14 and then removing the bolts between the anti-tilt fixing frame 36 and the feed inspection port 14. At this time, the anti-tilt fixing frame 36 is removed, and then the anti-tilt connecting rod 37 is pulled upward to drive the filter grille basket 32 ​​to slide upward along the basket slide rail 34 and move out of the cylinder 11 through the positioning connecting pipe 35, thereby cleaning the large volume impurities retained in the filter grille basket 32; At the same time, when the device is in use, when the submersible pump 42 needs to be repaired, the pump inspection port 12 is opened, and then the lifting handle 437 is pulled upward to move the positioning shaft 438 upward, and at the same time, the vertical rail 431 is moved upward, and then the entire vertical rail 431 is pushed along the horizontal rail 433 by the lifting handle 437 to move the vertical rail 431 to the target submersible pump 42 position, and then the lifting handle 437 is released. At this time, the vertical rail 431 naturally falls, and the ejector pin 435 at the bottom end thereof is inserted into the guide rod 446, and the ejector pin 435 presses the drive shaft 4443 downward under the gravity of the vertical rail 431, so that the lifting spring 4444 is compressed, and at the same time, the horizontal axis 4448 at the bottom end of the drive shaft 4443 moves downward, and at this time the horizontal axis 4448 is in the rectangular groove 4447. The locking spring 4446 is stretched and the front end of the J-shaped front flip lock arm 4442 is pressed downward, which drives the connecting shaft 44411 to move downward. At this time, the connecting shaft 44411 pulls the end of the F-shaped side flip lock arm 4441 downward through the traction parts 44410 at both ends, so that the entire F-shaped side flip lock arm 4441 is flipped around the hinge part 4449, so that the top end of the F-shaped side flip lock arm 4441 is moved away from the top of the self-coupling frame 443, thereby releasing the locking part 444 from the self-coupling frame 443. At this time, the hook rope is lowered through the pump inspection port 12 to hook the top of the submersible pump 42, and then the hook rope is pulled upward, so that the submersible pump 42 slides upward along the vertical rail 431, and finally moves out of the cylinder 11 from the pump inspection port 12, so as to facilitate the inspection of the submersible pump 42, and multiple submersible pumps 42 only need to be arranged with one set of movable guide rails 43, and the movable guide rails 43 can also move horizontally, so as to reduce the occupation of the internal inspection space of the cylinder 11, and facilitate the maintenance personnel to enter the cylinder 11 through the inspection ladder 16 to perform other maintenance and inspection operations; When installing the submersible pump 42, the submersible pump 42 is sleeved on the outer surface of the vertical rail 431 through the limit groove 447 on the autocoupler frame 443, and then the submersible pump 42 is slowly lowered through the hook rope, so that the autocoupler frame 443 enters the outer surface of the guide rod 446. At this time, the end face of the autocoupler frame 443 and the end face of the connecting pipe 442 fit each other under the influence of the gravity of the submersible pump 42. At this time, by pulling the lifting handle 437 upward, the ejector pin 435 is moved out from the inside of the guide rod 446. At this time, under the action of the lifting spring 4444, the driving shaft 4443 moves upward, and the front end of the J-shaped front flip lock arm 4442 is driven to flip upward through the horizontal axis 4448, and the locking spring 436 is locked. The spring 4446 also pulls the J-type front flip locking arm 4442 to flip upward, so that the front end of the J-type front flip locking arm 4442 is stuck in the flange slot at the output end of the submersible pump 42. At the same time, during the upward movement of the J-type front flip locking arm 4442, the end of the F-type side flip locking arm 4441 is pushed upward through the connecting shaft 44411, so that the F-type side flip locking arm 4441 flips around the hinge part 4449, so that the top end of the F-type side flip locking arm 4441 is stuck on the top of the self-coupling frame 443, thereby self-locking the self-coupling frame 443. During the use of the submersible pump 42, the self-locking part 444 is used to ensure the tightness of the connection with the connecting pipe 442.

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tailwater lifting pump station for sewage treatment, characterized in that: include; Storage unit (1); A support unit (2) disposed at the bottom of the storage unit (1) and used to prevent the storage unit (1) from collapsing downwards; A water inlet unit (3), which is arranged on one side of the storage unit (1); A water outlet unit (4), which is arranged on the other side of the storage unit (1); The water outlet unit (4) comprises: A water outlet pipe (41) fixedly extending through a side wall of the storage unit (1); A submersible pump (42) disposed inside the storage unit (1); An improved auto-coupling base (44) connected between the water outlet pipe (41) and the submersible pump (42); A movable guide rail member (43) is transversely slidably disposed between a plurality of improved auto-coupling bases (44) and is used for the plurality of submersible pumps (42) to move up and down along the movable guide rail member (43) for assembly and disassembly; The improved auto-coupling base (44) is provided with a self-locking member (444), the self-locking member (444) is used to fix the submersible pump (42), and the movable guide rail member (43) moves downward to drive the self-locking member (444) to open.

2. A tailwater lifting pump station for sewage treatment according to claim 1, characterized in that: The storage unit (1) comprises: Cylinder (11); A pump inspection port (12) is arranged on one side of the top of the cylinder (11), and the movable guide rail member (43) is located below the pump inspection port (12); A ventilation pipe (13) fixedly penetrates the top wall of the cylinder (11); A feed inspection port (14) is arranged on the other side of the top of the cylinder (11), and the water inlet unit (3) is located below the feed inspection port (14); A liquid level sensor (15) fixedly disposed on the inner wall of the cylinder (11); An inspection ladder (16) is fixedly mounted on the inner wall of the cylinder (11).

3. A tailwater lifting pump station for sewage treatment according to claim 2, characterized in that: The support unit (2) comprises: Concrete pad (21); A pre-buried foundation base plate (22) disposed on top of the concrete cushion layer (21); The cast-in-place fixing seat (23) is fixedly cast on the top of the pre-buried foundation bottom plate (22), and the cylinder (11) is fixed to the middle part of the cast-in-place fixing seat (23).

4. A tailwater lifting pump station for sewage treatment according to claim 2, characterized in that: The water inlet unit (3) comprises: A water inlet pipe (31) fixedly extending through the side wall of the cylinder (11); A filter grill basket (32) slidably disposed on the inner end of the water inlet pipe (31); A support frame (33) is fixedly arranged on the side wall of the cylinder (11), and the bottom of the filter grid basket (32) abuts against the top of the support frame (33); A basket slide rail (34) which is fixedly mounted on the support frame (33) and has a top end extending into the feed inspection port (14); A positioning connecting pipe (35) which is fixedly welded to the outer wall of the filter grid basket (32) and movably sleeved on the outer surface of the basket slide rail (34); An anti-tilt fixing frame (36) is fixedly mounted on the side wall of the feed inspection opening (14) by means of bolts; The anti-roll link (37) is fixedly arranged on the top of the positioning connection pipe (35), and the bottom of the anti-roll fixing frame (36) is movably engaged with the anti-roll link (37).

5. The tailwater lifting pump station for sewage treatment according to claim 2, characterized in that: The movable guide rail member (43) comprises: A vertical rail (431) disposed in the cylinder (11); An N-shaped support rail (432) fixedly disposed at the bottom of the cylinder (11); A horizontal rail (433) fixedly disposed in the pump inspection port (12); Movable grooves (434) are provided at both ends of the vertical rail (431); An ejector pin (435) is fixedly disposed at the bottom end of the vertical rail (431); Two sets of horizontal sliding positioning members (436), both ends of which are slidably disposed in the movable grooves (434), and the middle parts of the two sets of horizontal sliding positioning members (436) are slidably disposed on the outer surfaces of the N-shaped support rail (432) and the horizontal rail (433), respectively; A lifting handle (437) fixedly disposed on the top of the vertical rail (431); A positioning shaft (438) fixedly disposed at the bottom of the lifting handle (437); A positioning hole (439) is formed on the outer surface of the horizontal rail (433), and the positioning hole (439) corresponds to the improved auto-coupling base (44) one by one. The bottom end of the positioning shaft (438) is movably inserted into the positioning hole (439).

6. A tailwater lifting pump station for sewage treatment according to claim 5, characterized in that: The improved autocoupling base (44) comprises: A fixed support (441) fixedly disposed on the bottom of the cylinder (11); A connecting pipe (442), one end of which is connected to the water outlet pipe (41); A self-coupling frame (443) is fixedly mounted on the output end of the submersible pump (42) and is movably connected to the other end of the connecting pipe (442); A mounting seat (445) fixedly welded to the middle of the fixed support (441); A guide rod (446) fixedly mounted on the top of the mounting seat (445); Limiting grooves (447) are provided on both sides of the top of the autocoupler frame (443), and the autocoupler frame (443) slides on the outer surfaces of the guide rod (446) and the vertical rail (431) through the limiting grooves (447); The self-locking member (444) is installed in the fixed support (441), and the self-locking member (444) is movably engaged with the self-coupling frame (443).

7. A tailwater lifting pump station for sewage treatment according to claim 6, characterized in that: The self-locking member (444) comprises: An F-shaped side flip lock arm (4441) is rotatably arranged on both sides of the fixed support (441), and its top end is movably connected to the top of the self-coupling frame (443); A J-shaped front flip lock arm (4442) is rotatably disposed in the middle of the fixed support (441) and is movably engaged with the output end of the submersible pump (42); The driving shaft (4443) is slidably disposed inside the guide rod (446), the top end of the driving shaft (4443) is adapted to the ejector pin (435), and the bottom end of the driving shaft (4443) is drivingly connected to the F-shaped side flip lock arm (4441) and the J-shaped front flip lock arm (4442).

8. A tailwater lifting pump station for sewage treatment according to claim 7, characterized in that: A trapezoidal support (4445) is fixedly arranged on the fixed support (441), the J-shaped front flip lock arm (4442) is movably hinged in the trapezoidal support (4445), and a locking spring (4446) is fixedly installed between the end of the J-shaped front flip lock arm (4442) and the trapezoidal support (4445), and a connecting shaft (44411) is movably arranged at the end of the F-shaped side flip lock arm (4441), and the connecting shaft (44411) is movably connected to the J-shaped front flip lock arm (4442).

9. A tailwater lifting pump station for sewage treatment according to claim 8, characterized in that: The outer surface of the F-shaped side flip lock arm (4441) is integrally formed with a hinge portion (4449), and the hinge portion (4449) is rotatably connected to the inside of the fixed support (441). A connecting groove is provided at the end of the F-shaped side flip lock arm (4441), and a traction portion (44410) is slidably arranged inside the connecting groove. Both ends of the connecting shaft (44411) are fixedly connected to the two groups of traction portions (44410).

10. A tailwater lifting pump station for sewage treatment according to claim 9, characterized in that: A rectangular groove (4447) is provided in the middle of the J-shaped front flip lock arm (4442), a lifting spring (4444) is provided at the inner bottom end of the guide rod (446), a sliding groove (448) is provided on the bottom side wall of the guide rod (446), a transverse shaft (4448) is slidably connected inside the sliding groove (448), two ends of the transverse shaft (4448) are fixedly welded to the bottom ends of the two sets of driving shafts (4443), and the transverse shaft (4448) and the connecting shaft (44411) are both slidably connected in the rectangular groove (4447).

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