Tubular pump blade adjusting mechanism capable of achieving bidirectional hydraulic adjustment

Abstract

The invention relates to the technical field of water conservancy and hydropower, in particular to a tubular pump blade adjusting mechanism capable of being hydraulically adjusted in two directions, which comprises a bracket, a driving assembly and a driving assembly, the surface of the bracket is provided with a tank body, and the driving assembly is used for driving a blade to rotate through a structure, so that the angle of the blade is changed; the driving assembly comprises a first motor, a hydraulic cylinder and a cylinder, the first motor and the hydraulic cylinder are installed in the tank body, and four paddles are arranged on the arc surface of the cylinder. The hydraulic cylinder and the paddle are arranged, through reasonable hydraulic design and arrangement, the paddle is operated to rotate through the hydraulic cylinder adjusting mechanism, and under the working conditions of flood drainage and water diversion of the two-way water pumping low-lift pump station, the paddle is well matched with flowing of forward and reverse water flow; and meanwhile, under the single flood drainage or water diversion working condition, the paddle placing angle is automatically adjusted according to the change of lift and flow, so that the water flow power is optimized, and the energy consumption is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and hydropower, and in particular relates to a bidirectional hydraulically adjustable blade adjustment mechanism for a throughflow pump. Background Art

[0002] A tubular pump, also known as a cylinder pump or bulb pump, is a special form of a horizontal axial flow pump. It consists of an electric motor, a reduction gear and a water pump as a whole, and is usually installed in a machine pit inside an underwater dam. The characteristic of a tubular pump is that its inlet and outlet channels are located in a straight line, and its shape is approximately a straight cylinder. This design reduces hydraulic losses and increases water lifting efficiency. At the same time, it has a compact structure, is easy to install and maintain, and the pump station project is relatively simple.

[0003] In the Chinese patent with the publication number CN215256860U, a stable and reliable submersible full-flow pump is mentioned. The specification discloses that by pulling the upper and lower circular plates at the same time to move the clamping rod to the rear side, and then plugging the docking block into the plug-in block, the circular plate can be loosened to quickly install the filter screen plate. The filter screen plate provided can prevent a large amount of debris in the water from entering the submersible full-flow pump body, protect the submersible full-flow pump body from being damaged, ensure normal use, and improve stability and reliability. Similarly, the filter screen plate can be quickly disassembled during disassembly, thereby improving practicality. The brush plate connected to the connecting rod is driven to rotate by the motor provided, and the brush plate fits the surface of the filter screen plate, thereby preventing debris from clogging the filter screen plate, thereby effectively improving the use effect.

[0004] However, in the application scenarios mentioned above, although the debris in the water flow is initially intercepted by the filter, there are obvious limitations in relying solely on the filter interception and brush cleaning. Specifically, although this method can temporarily separate debris from the water flow, it fails to completely process and remove the debris. When the brush cleans the filter, the intercepted debris is scraped off the filter, but they are often only temporarily moved to the water area near the filter and are not effectively collected or discharged from the system. Therefore, as the water continues to flow, these debris are likely to be brought into the water flow again, forming a cycle, and the eradication effect cannot be truly achieved. Summary of the invention

[0005] The object of the present invention is to provide a bidirectional hydraulically adjustable blade adjustment mechanism for a tubular pump, so as to solve the problem in the prior art that it is difficult to clean up debris in water during use of the existing tubular pump.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism comprises a bracket, a tank body is mounted on the surface of the bracket, and further comprises:

[0008] A driving assembly, which is used to drive the blades to rotate through the structure, so that the angle of the blades changes, so that the blades are well matched with the flow of positive and negative water flow, the driving assembly includes a first motor and a hydraulic cylinder and a cylinder installed inside the tank body, the arc surface of the cylinder is provided with four blades, the output end of the hydraulic cylinder is fixedly connected to a rectangular column, the surface of the rectangular column is provided with four limiting grooves, the side of the four blades close to the rectangular column is fixedly connected to a support rod, and the blades are connected to the rectangular column by means of the support rod and the limiting groove;

[0009] An auxiliary mechanism is used to crush the garbage entering the tank body and collect the crushed garbage. The auxiliary mechanism includes a second motor installed on the arc surface of the tank body, the output end of the second motor is fixedly connected to a ring, the inner arc surface of the ring is provided with a groove, a fixing seat and a filter are installed inside the ring, a third motor is installed on the surface of the fixing seat, and the output end of the third motor is fixedly connected to a blade.

[0010] Preferably: the cylinder is fixedly connected to the output end of the first motor, the four blades are rotatably connected to the arc surface of the cylinder, the four support rods slide inside the four limit grooves respectively, and the hydraulic cylinder and the rectangular column are both located inside the cylinder.

[0011] Preferably: the arc surface of the circular ring is connected to a leakage pipe, the bottom end of the leakage pipe rotates through the tank body and is provided with a collecting tube, the arc surface of the leakage pipe is rotatably connected to a connecting ring, the bottom surface of the connecting ring is provided with a plurality of slots, and the arc surface of the collecting tube is fixedly connected with a plurality of blocks adapted to the plurality of slots.

[0012] Preferably: the output shaft of the third motor is fixedly connected to a gear, the tooth surface of the gear is meshed with a rack, the bottom surface of the rack is fixedly connected to a rectangular plate, the inner wall of the groove is fixedly connected to a rectangular frame, the rectangular plate is slidably connected to the inside of the rectangular frame, the side wall of the rack is fixedly connected to a connecting rod, the end of the connecting rod away from the rack is fixedly connected to the fourth motor, and the output end of the fourth motor is fixedly connected to a cleaning pad.

[0013] Preferably: a block is fixedly connected to the surface of the rectangular frame, a spring is fixedly connected to the end face of the block, a fixed block is fixedly connected to the end of the spring away from the block, and the fixed block is fixedly connected to the surface of the rectangular plate.

[0014] Preferably, the end surface of the block is fixedly connected to a limiting rod, an end of the limiting rod away from the block slides through the fixed block, and the spring is sleeved on the arc surface of the limiting rod.

[0015] Preferably: the inner arc surface of the leakage pipe is rotatably connected to a round rod, the arc surface of the round rod is fixedly connected to a blocking plate, the arc surface of the round rod is sleeved with a torsion spring, and both ends of the torsion spring are respectively fixedly connected to the blocking plate and the inner wall of the leakage pipe.

[0016] Preferably, the size of the blocking plate is smaller than the size of the inner diameter of the leakage pipe, a sealing gasket is fixedly connected to the bottom surface of the blocking plate, the sealing gasket is a rubber gasket, and the size of the sealing gasket is adapted to the size of the inner diameter of the leakage pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention sets hydraulic cylinders and blades, and through reasonable hydraulic design and layout, operates the blades to rotate through the hydraulic cylinder adjustment mechanism. Under the conditions of drainage and diversion of bidirectional low-lift pump stations, the blades can well match the flow of positive and reverse water flows; at the same time, under single drainage or diversion conditions, the blade placement angle is automatically adjusted according to the changes in head and flow, thereby helping to optimize water flow power and reduce energy consumption. The present invention fully adopts the blade design and special layout of the optimized profile, and completely solves the problem of poor hydraulic performance of the reverse operation condition of the bidirectional low-lift pump station.

[0019] 2. The present invention provides blades, filters, collection barrels and rings. Driven by a third motor, the blades rotate at high speed, which can effectively crush large debris that enters the tank body with the water flow. These crushed debris are then blocked by the filter to ensure that they are properly intercepted to avoid affecting the subsequent processing links. The collection barrel is responsible for collecting these crushed debris for subsequent processing. At the same time, the rotation of the ring can adjust the direction of the blades and the filter according to actual needs, so as to optimize the matching with the water flow. Whether it is forward or reverse water flow, it can ensure efficient operation, improve the overall processing efficiency and the flexibility of equipment use.

[0020] 3. The present invention is provided with gears, racks, cleaning pads and springs. The rotation of the gears and racks can drive the cleaning pad to move, brush off the debris attached to the filter screen, and collect it into the collection tube. Under the action of the spring, the cleaning pad can be repeatedly moved up and down to improve the cleaning effect. When not cleaning, the cleaning pad changes its angle and, with the transmission of the gears and racks, can open the leakage pipe again to discharge the crushed debris into the collection tube. That is, the cleaning pad can clean the debris attached to the filter screen under horizontal action, and can discharge the crushed debris into the collection tube under vertical state.

[0021] 4. The present invention provides a blocking plate, a sealing gasket and a torsion spring. The blocking plate and the sealing gasket play a role in sealing the leaking pipe, so as to avoid excessive water from entering the collecting tube as much as possible. With the help of the elastic force of the torsion spring, the cleaning pad in a vertical state can enter the collecting tube, and when coming out of the collecting tube, the blocking plate will automatically return to the sealing state to ensure that the collecting tube is sealed again to avoid water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 One of the three-dimensional diagrams of the present invention;

[0023] Figure 2 This is the second stereogram of the present invention;

[0024] Figure 3 For the present invention Figure 2 A partial right view structural diagram of FIG.

[0025] Figure 4 For the present invention Figure 1 Schematic diagram of the plane section structure of the middle cylinder;

[0026] Figure 5 It is a partial structural schematic diagram of the driving assembly of the present invention;

[0027] Figure 6 For the present invention Figure 2 Schematic diagram of the internal structure;

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of some structures;

[0029] Figure 8 For the present invention Figure 7 Schematic diagram of some structures;

[0030] Fig. 9 It is a schematic diagram of the disassembly structure of the collecting tube of the present invention.

[0031] In the figure: 1, bracket; 101, tank; 2, driving assembly; 201, cylinder; 202, blade; 203, first motor; 204, hydraulic cylinder; 205, rectangular column; 206, limit groove; 207, support rod; 3, auxiliary mechanism; 301, second motor; 302, ring; 303, groove; 304, fixed seat; 305, third motor; 306, blade; 307, filter; 308, leakage pipe; 3 09, collecting tube; 310, connecting ring; 311, slot; 312, block; 313, round rod; 3131, torsion spring; 314, blocking plate; 315, sealing gasket; 316, gear; 317, rack; 318, rectangular plate; 319, rectangular frame; 320, connecting rod; 3201, fourth motor; 321, cleaning pad; 322, block; 323, spring; 324, fixing block; 325, limiting rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0033] Reference Figure 1-Figure 9 As shown, the present invention provides a bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism, comprising a bracket 1, a tank body 101 is mounted on the surface of the bracket 1, and further comprising:

[0034] refer to Figure 1 , Figure 4 and Figure 5 As shown, the drive assembly 2 is used to drive the blades to rotate through the structure, so that the angle of the blades changes, so that the blades are well matched with the flow of positive and reverse water flow. The drive assembly 2 includes a first motor 203 and a hydraulic cylinder 204 and a cylinder 201 installed inside the tank body 101. The arc surface of the cylinder 201 is provided with four blades 202. The output end of the hydraulic cylinder 204 is fixedly connected to a rectangular column 205. Four limiting grooves 206 are opened on the surface of the rectangular column 205. The four blades 202 are fixedly connected to a support rod 207 on one side close to the rectangular column 205. The blades 202 are connected to the rectangular column 205 by means of the support rod 207 and the limiting groove 206.

[0035] In this embodiment, the hydraulic cylinder 204 is an existing mechanism, and the figure does not fully show all the hydraulic components.

[0036] The cylinder 201 is fixedly connected to the output end of the first motor 203 , the four blades 202 are rotatably connected to the arc surface of the cylinder 201 , the four support rods 207 slide inside the four limit grooves 206 respectively, and the hydraulic cylinder 204 and the rectangular column 205 are both located inside the cylinder 201 .

[0037] In this embodiment, the hydraulic cylinder 204 is installed inside the cylinder 201 .

[0038] In a further embodiment, reference Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the auxiliary mechanism 3 is used to crush the garbage entering the tank body 101 and collect the crushed garbage. The auxiliary mechanism 3 includes a second motor 301 installed on the arc surface of the tank body 101, and the output end of the second motor 301 is fixedly connected to a ring 302, and the inner arc surface of the ring 302 is provided with a groove 303. A fixing seat 304 and a filter screen 307 are installed inside the ring 302, and a third motor 305 is installed on the surface of the fixing seat 304, and a blade 306 is fixedly connected to the output end of the third motor 305.

[0039] In this embodiment, the size of the ring 302 is smaller than the inner diameter of the tank body 101 , so as to ensure that the ring 302 can rotate inside the tank body 101 , and the groove 303 is an annular groove.

[0040] The arc surface of the ring 302 is connected to a leakage pipe 308, the bottom end of the leakage pipe 308 rotates through the tank body 101 and is provided with a collecting tube 309, the arc surface of the leakage pipe 308 is rotatably connected to a connecting ring 310, and a plurality of card grooves 311 are provided on the bottom surface of the connecting ring 310, and a plurality of card blocks 312 adapted to the plurality of card grooves 311 are fixedly connected to the arc surface of the collecting tube 309.

[0041] In this embodiment, a hole is provided on the collecting tube 309 to facilitate the insertion of the leakage tube 308, and the size of the hole on the collecting tube 309 is larger than the size of the leakage tube 308. The card slot 311 is opened with the center of the leakage tube 308 as the center circumference, and the positions of the card slot 311 and the card block 312 correspond to each other. The shape of the card block 312 is a cross, and the card slot 311 and the card block 312 are interference fit, and the fastening force is strong.

[0042] The output shaft of the third motor 305 is fixedly connected to a gear 316, the tooth surface of the gear 316 is meshed with a rack 317, the bottom surface of the rack 317 is fixedly connected to a rectangular plate 318, the inner wall of the groove 303 is fixedly connected to a rectangular frame 319, the rectangular plate 318 is slidably connected inside the rectangular frame 319, the side wall of the rack 317 is fixedly connected to a connecting rod 320, the end of the connecting rod 320 away from the rack 317 is fixedly connected to the fourth motor 3201, and the output end of the fourth motor 3201 is fixedly connected to a cleaning pad 321.

[0043] In this embodiment, the gear 316 has only half teeth on its tooth surface, so that the rack 317 can move up and down repeatedly, and the brush surface of the cleaning pad 321 contacts the filter 307, so that the cleaning pad 321 can clean the filter 307 when moving.

[0044] A block 322 is fixedly connected to the surface of the rectangular frame 319 , a spring 323 is fixedly connected to the end surface of the block 322 , a fixing block 324 is fixedly connected to the end of the spring 323 away from the block 322 , and the fixing block 324 is fixedly connected to the surface of the rectangular plate 318 .

[0045] In this embodiment, the spring 323 serves to facilitate the timely rebound of the rack 317, thereby achieving the effect of repeated movement.

[0046] The end surface of the block 322 is fixedly connected to a limiting rod 325 . One end of the limiting rod 325 away from the block 322 slides through the fixed block 324 . The spring 323 is sleeved on the arc surface of the limiting rod 325 .

[0047] In this embodiment, when the rectangular plate 318 moves, the fixing block 324 slides along the arc surface of the limiting rod 325 , thereby limiting the direction of the elastic force of the spring 323 .

[0048] refer to Figure 6 and Fig. 9 As shown, the inner arc surface of the leakage pipe 308 is rotatably connected with a round rod 313, the arc surface of the round rod 313 is fixedly connected with a plugging plate 314, the arc surface of the round rod 313 is sleeved with a torsion spring 3131, and the two ends of the torsion spring 3131 are respectively fixedly connected with the plugging plate 314 and the inner wall of the leakage pipe 308. The size of the plugging plate 314 is smaller than the size of the inner diameter of the leakage pipe 308, and the bottom surface of the plugging plate 314 is fixedly connected with a sealing gasket 315, which is a rubber gasket, and the size of the sealing gasket 315 is adapted to the size of the inner diameter of the leakage pipe 308.

[0049] In this embodiment, the blocking plate 314 and the sealing gasket 315 serve to block the leakage pipe 308 to prevent excessive water from entering the collecting tube 309. With the help of the elastic force of the torsion spring 3131, the cleaning pad 321 in a vertical state can enter the collecting tube 309, and when coming out of the collecting tube 309, the blocking plate 314 will automatically return to the blocking state to ensure that the collecting tube 309 is sealed again to avoid water leakage.

[0050] The working principle of the present invention is as follows: when in use, water flows into the tank body 101, and the first motor 203 can drive the cylinder 201 to rotate, so that the paddle 202 rotates to discharge or divert the water flow. If it is necessary to match the flow of reverse water flow, the angle of the paddle 202 can be adjusted, and the hydraulic cylinder 204 is started to drive the rectangular column 205 to move. Since the paddle 202 and the cylinder 201 are in a rotational relationship, the support rod 207 will slide along the inner wall of the limit groove 206, causing the paddle 202 to rotate, and stop driving when it rotates to a suitable angle, so that the placement angle of the paddle 202 can match the flow direction of the water flow, that is, under a single drainage or water diversion condition, the placement angle of the paddle 202 is automatically adjusted according to the changes in the head and flow rate, thereby helping to optimize the water flow power and reduce energy consumption;

[0051] During the flow of water, garbage and debris in the water will enter the tank 101 with the flow of water, and the third motor 305 will drive the blade 306 to rotate to crush the debris, and some of the crushed debris will adhere to the filter 307. At the same time, the third motor 305 will drive the gear 316 to rotate, and the gear 316 will transmit the transmission to the rack 317, and the rectangular plate 318 will slide along the inner wall of the rectangular frame 319. The spring 323 will be in a compressed state, and the cleaning pad 321 will move downward on the filter 307, pushing the debris attached to the filter 307 downward and accumulating it above the blocking plate 314. Because the tooth surface of the gear 316 has only half teeth, when the gear 316 does not contact the rack 317, the spring 323 rebounds and the rack 317 moves up, that is, the cleaning pad 321 will move up, and so on. During the cleaning process, the fourth motor 3201 can also drive The rotation of the cleaning pad 321 can increase the cleaning area of ​​the filter 307. When the crushed debris needs to be discharged into the collecting tube 309, the fourth motor 3201 drives the cleaning pad 321 to rotate so that the cleaning pad 321 is in a vertical state. At this time, the position of the cleaning pad 321 will be opposite to the blocking plate 314. At this time, when the gear 316 and the rack 317 are in transmission, the cleaning pad 321 in the vertical state will move downward and be squeezed onto the blocking plate 314, the round rod 313 will rotate, the blocking plate 314 will tilt, the torsion spring 3131 will be in a torsion state, and a gap will appear in the leakage pipe 308. At this time, the crushed debris will be discharged from the leakage pipe 308 into the collecting tube 309 along with the water flow, and the torsion spring 3131 plays a role in that when the cleaning pad 321 in the vertical state leaves the leakage pipe 308, the blocking plate 314 can automatically rebound to block the leakage pipe 308.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism, comprising a bracket (1), a tank body (101) being mounted on the surface of the bracket (1), characterized in that: Also includes: A drive assembly (2) is used to drive the blades to rotate through structural driving, so that the angle of the blades changes, so that the blades are well matched with the flow of positive and negative water flows. The drive assembly (2) comprises a first motor (203) and a hydraulic cylinder (204) and a cylinder (201) installed inside the tank body (101). The circular arc surface of the cylinder (201) is provided with four blades (202). The output end of the hydraulic cylinder (204) is fixedly connected to a rectangular column (205). The surface of the rectangular column (205) is provided with four limiting grooves (206). The four blades (202) are fixedly connected to a support rod (207) on one side close to the rectangular column (205). The blades (202) are connected to the rectangular column (205) by means of the support rod (207) and the limiting groove (206). The auxiliary mechanism (3) is used to crush the garbage entering the tank body (101) and collect the crushed garbage. The auxiliary mechanism (3) comprises a second motor (301) mounted on the arc surface of the tank body (101), the output end of the second motor (301) is fixedly connected to a ring (302), the inner arc surface of the ring (302) is provided with a groove (303), a fixing seat (304) and a filter (307) are mounted inside the ring (302), a third motor (305) is mounted on the surface of the fixing seat (304), and a blade (306) is fixedly connected to the output end of the third motor (305).

2. A bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism according to claim 1, characterized in that: The cylinder (201) is fixedly connected to the output end of the first motor (203), the four blades (202) are rotatably connected to the arc surface of the cylinder (201), the four support rods (207) slide inside the four limit grooves (206) respectively, and the hydraulic cylinder (204) and the rectangular column (205) are both located inside the cylinder (201).

3. The bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism according to claim 1, characterized in that: The arc surface of the circular ring (302) is connected to a leakage pipe (308), the bottom end of the leakage pipe (308) rotates through the tank body (101) and is provided with a collecting tube (309), the arc surface of the leakage pipe (308) is rotatably connected to a connecting ring (310), the bottom surface of the connecting ring (310) is provided with a plurality of slots (311), and the arc surface of the collecting tube (309) is fixedly connected to a plurality of blocks (312) adapted to the plurality of slots (311).

4. The bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism according to claim 1, characterized in that: The output shaft of the third motor (305) is fixedly connected to a gear (316), the tooth surface of the gear (316) is meshed with a rack (317), the bottom surface of the rack (317) is fixedly connected to a rectangular plate (318), the inner wall of the groove (303) is fixedly connected to a rectangular frame (319), the rectangular plate (318) is slidably connected inside the rectangular frame (319), the side wall of the rack (317) is fixedly connected to a connecting rod (320), the end of the connecting rod (320) away from the rack (317) is fixedly connected to a fourth motor (3201), and the output end of the fourth motor (3201) is fixedly connected to a cleaning pad (321).

5. The bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism according to claim 4, characterized in that: A block (322) is fixedly connected to the surface of the rectangular frame (319), a spring (323) is fixedly connected to the end surface of the block (322), a fixed block (324) is fixedly connected to one end of the spring (323) away from the block (322), and the fixed block (324) is fixedly connected to the surface of the rectangular plate (318).

6. A bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism according to claim 5, characterized in that: The end surface of the block (322) is fixedly connected to a limiting rod (325); one end of the limiting rod (325) away from the block (322) slides through the fixed block (324); and the spring (323) is sleeved on the arc surface of the limiting rod (325).

7. The bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism according to claim 3, characterized in that: The inner arc surface of the leakage pipe (308) is rotatably connected to a round rod (313), the arc surface of the round rod (313) is fixedly connected to a blocking plate (314), the arc surface of the round rod (313) is sleeved with a torsion spring (3131), and the two ends of the torsion spring (3131) are respectively fixedly connected to the blocking plate (314) and the inner wall of the leakage pipe (308).

8. The bidirectional hydraulically adjustable throughflow pump blade adjustment mechanism according to claim 7, characterized in that: The size of the blocking plate (314) is smaller than the size of the inner diameter of the leakage pipe (308); a sealing gasket (315) is fixedly connected to the bottom surface of the blocking plate (314); the sealing gasket (315) is a rubber gasket; the size of the sealing gasket (315) is compatible with the size of the inner diameter of the leakage pipe (308).

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