Disclosure of Invention
The invention mainly aims to provide an anti-blocking sewage pump which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
an anti-blocking sewage pump comprises a first pump body, a second pump body and a hydraulic telescopic mechanism, wherein the first pump body is detachably connected with the second pump body, a diaphragm is arranged between the first pump body and the second pump body, an output pipeline and an input pipeline are fixedly connected with one side of the first pump body, which is far away from the second pump body, a first check valve and a second check valve are respectively arranged in the middle of the output pipeline and the input pipeline, a third flange plate is fixedly arranged at one end of the output pipeline, which is far away from the first pump body, a fourth flange plate is fixedly arranged at one end of the input pipeline, which is far away from the first pump body, an air cylinder is fixedly arranged at one side of the second pump body, which is far away from the first pump body, the interior of the air cylinder is communicated with the interior of the second pump body, a first piston is arranged in the interior of the air cylinder, and a through hole is formed in the top of the air cylinder, a piston rod in the hydraulic telescopic mechanism structure penetrates through the through hole to enter the interior of the air cylinder and is fixedly connected with the first piston, and a pressure relief device is fixedly mounted on the outer wall of the second pump body.
Preferably, one side fixed mounting of the first pump body has a first flange, one side fixed mounting of the second pump body has a second flange, pass through detachable the connection of bolt between first flange and the second flange, the diaphragm clamp is located between first flange and the second flange.
Preferably, the first pump body is internally and fixedly provided with a limiting interlayer, the structure of the limiting interlayer is provided with a plurality of groups of through holes, the number of the through holes is a plurality of groups, one side of the limiting interlayer is provided with a filter screen, and the limiting interlayer is of a spherical structure.
Preferably, one side fixed mounting that the second pump body was kept away from to the first pump body has the buncher, the inside of the first pump body is provided with the impeller, the output shaft of buncher extends to the inside of the first pump body and is connected with impeller transmission, one side inner wall of the first pump body is provided with mechanical seal, and mechanical seal encircles the output shaft of buncher.
Preferably, the pressure relief device comprises a fifth flange, a pipe body, a first shell, a second shell, an exhaust pipeline, a spring, a second piston, a sixth flange and a seventh flange, and the fifth flange is fixedly mounted on the second pump body through bolts.
Preferably, the pipe body is fixedly installed between the first shell and the fifth flange, the exhaust pipeline is fixedly installed on the first shell, the sixth flange is fixedly installed at the top of the first shell, the seventh flange is fixedly installed at the bottom of the second shell, and the sixth flange is detachably connected with the seventh flange through a bolt.
Preferably, a sealing ring is arranged between the sixth flange and the seventh flange, the second piston is arranged in the first shell, the inside of the first shell and the inside of the second shell are combined to form a closed space, the spring is located in the closed space, and the spring is located above the second piston.
Compared with the prior art, the invention has the following beneficial effects: the anti-blocking sewage pump adopts the speed regulating motor as an auxiliary driving device, under normal conditions, the speed regulating motor drives the impeller to rotate at high speed, so that liquid can generate centrifugal force, the fluid circulation speed is increased, the sewage discharge working efficiency is improved, when blockage occurs, the rotating speed of the speed regulating motor is reduced, the power of the speed regulating motor is kept consistent before and after regulation, the rotating speed of the speed regulating motor is inversely proportional to the torque, the slower the rotating speed of the speed regulating motor is, the larger the torque is, the blockage substances can be forced to displace, the blockage removing effect is achieved, in the whole sewage discharge process, the blockage in the sewage pump can be effectively prevented, in addition, when the blockage substances are fibrous media, the blockage substances are easy to wind with the impeller, the blockage removing effect of the speed regulating motor and the impeller is difficult to be achieved, a piston rod in the hydraulic telescopic mechanism structure displaces downwards, so that a high-pressure environment is formed in the second pump body, and the resistance of the blockage substances is met, the diaphragm can't swell towards the direction of the first pump body, along with piston rod continues to push down in the hydraulic telescoping mechanism, the inside atmospheric pressure of the second pump body improves gradually, when the atmospheric pressure is higher than the threshold value of pressure release ware, promote the inside second piston upward displacement of pressure release ware, the spring atress shrink, when the second piston is higher than exhaust duct, the pressure release passageway is unblocked, automatically, accomplish the pressure release, reduce the piston rod downward displacement resistance in the hydraulic telescoping mechanism structure, provide overload protection for main drive mechanism, do benefit to people and use, whole anti-clogging sewage pump simple structure, high durability and convenient operation, the effect of use is better for traditional mode.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in FIGS. 1-3, an anti-clogging sewage pump comprises a first pump body 1, a second pump body 2 and a hydraulic telescopic mechanism 10, wherein the first pump body 1 is detachably connected with the second pump body 2, a diaphragm 16 is arranged between the first pump body 1 and the second pump body 2, an output pipeline 13 and an input pipeline 14 are fixedly connected with one side of the first pump body 1 away from the second pump body 2, a first check valve 6 and a second check valve 8 are respectively arranged at the middle parts of the output pipeline 13 and the input pipeline 14, a third flange 5 is fixedly arranged at one end of the output pipeline 13 away from the first pump body 1, a fourth flange 7 is fixedly arranged at one end of the input pipeline 14 away from the first pump body 1, an air cylinder 9 is fixedly arranged at one side of the second pump body 2 away from the first pump body 1, the interior of the air cylinder 9 is communicated with the interior of the second pump body 2, a first piston is arranged in the air cylinder 9, the top of the air cylinder 9 is provided with a through hole, a piston rod in the structure of the hydraulic telescopic mechanism 10 penetrates through the through hole to enter the inside of the air cylinder 9 and is fixedly connected with a first piston, sewage enters the inside of the first pump body 1 through an input pipeline 14, the first piston is controlled to do continuous longitudinal reciprocating motion through the hydraulic telescopic mechanism 10, the first piston moves downwards to compress the air in the second pump body 2, so that a diaphragm 16 bulges towards one side of the first pump body 1 to extrude the sewage in the inside of the first pump body 1, under the influence of a second one-way valve 8 in the middle of the input pipeline 14, the sewage can not flow back through the input pipeline 14, the sewage passes through an output pipeline 13 to be discharged, the first piston moves upwards, the air pressure in the second pump body 2 is reduced to form a low-pressure environment, the diaphragm 16 bulges towards one side of the air cylinder 9, so that the inside of the first pump body 1 forms a low-pressure environment, and a low-pressure adsorption principle is adopted, sewage is sucked, the sewage which is discharged through the output pipeline 13 is limited by the first one-way valve 6 in the middle of the output pipeline 13, the sewage cannot flow back to the inside of the first pump body 1 through the output pipeline 13, the sewage enters the inside of the first pump body 1 through the input pipeline 14, the purpose of fluid pressurization conveying is achieved through continuous longitudinal reciprocating motion of the first piston, and the pressure relief device 11 is fixedly installed on the outer wall of the second pump body 2.
Furthermore, one side fixed mounting of the first pump body 1 has a first flange 3, one side fixed mounting of the second pump body 2 has a second flange 4, the first flange 3 is detachably connected with the second flange 4 through bolts, the diaphragm 16 is clamped between the first flange 3 and the second flange 4, the assembly and disassembly operations between the first pump body 1 and the second pump body 2 are simple, and the production assembly and the internal component fault maintenance or replacement are facilitated.
Further, the inside fixed mounting of the first pump body 1 has spacing interlayer 17, and the quantity that has seted up thru hole and thru hole in the structure of spacing interlayer 17 is a plurality of groups, and one side of spacing interlayer 17 is provided with filter screen 18, and spacing interlayer 17 is the spherical structure, and spacing interlayer 17 plays limiting displacement to diaphragm 16, and filter screen 18 can prevent solid-state impurity and diaphragm 16 contact in the sewage, avoids diaphragm 16 to receive the damage.
Further, a speed regulating motor 12 is fixedly installed on one side of the first pump body 1, which is far away from the second pump body 2, an impeller 15 is arranged inside the first pump body 1, an output shaft of the speed regulating motor 12 extends into the first pump body 1 and is in transmission connection with the impeller 15, a mechanical seal is arranged on the inner wall of one side of the first pump body 1 and surrounds the output shaft of the speed regulating motor 12, under normal conditions, the speed regulating motor 12 drives the impeller 15 to rotate at a high speed, so that liquid can generate centrifugal force, the fluid circulation speed is accelerated, the pollution discharge working efficiency is improved, when blockage occurs, the rotating speed of the speed regulating motor 12 is reduced, the power of the speed regulating motor 12 is kept consistent before and after regulation, the rotating speed of the speed regulating motor 12 is inversely proportional to the torque, the slower the torque of the speed regulating motor 12 is larger, the blockage substance can be forced to displace, the blockage dredging effect is achieved, in the whole pollution discharge process, can effectively prevent the inside of the sewage pump from being blocked.
Further, the pressure relief device 11 is composed of a fifth flange 19, a pipe body 20, a first housing 21, a second housing 22, an exhaust pipe 23, a spring 24, a second piston 25, a sixth flange 26 and a seventh flange 27, and the fifth flange 19 is fixedly mounted on the second pump body 2 through bolts.
Further, the pipe body 20 is fixedly installed between the first shell 21 and the fifth flange 19, the exhaust pipeline 23 is fixedly installed on the first shell 21, the sixth flange 26 is fixedly installed at the top of the first shell 21, the seventh flange 27 is fixedly installed at the bottom of the second shell 22, the sixth flange 26 is detachably connected with the seventh flange 27 through bolts, the first shell 21 and the second shell 22 are easy to disassemble and assemble, and the production assembly and the fault maintenance or replacement of internal components are facilitated.
Furthermore, a sealing ring is arranged between the sixth flange 26 and the seventh flange 27 to improve the sealing effect after the assembly of the sixth flange and the seventh flange, the second piston 25 is arranged inside the first housing 21, the inside of the first housing 21 and the inside of the second housing 22 are combined to form a sealed space, the spring 24 is arranged in the sealed space, and the spring 24 is arranged above the second piston 25, when the blocking material is a fibrous medium, the blocking material is easily wound around the impeller 15, therefore, the speed regulating motor 12 and the impeller 15 are difficult to block and loosen, the piston rod in the structure of the hydraulic telescopic mechanism 10 is displaced downward to form a high-pressure environment in the second pump body 2, and due to the resistance of the blocking material, the diaphragm 16 cannot bulge toward the first pump body 1, as the piston rod in the hydraulic telescopic mechanism 10 is continuously pressed downward, the air pressure in the second pump body 2 is gradually increased, when the air pressure is higher than the threshold value of the pressure release 11, the second piston 25 in the pressure relief device 11 is pushed to move upwards, the spring 24 is stressed to contract, when the spring 24 is higher than the exhaust pipeline 23, the pressure relief channel is smooth, the pressure relief is automatically completed, the downward displacement resistance of the piston rod in the structure of the hydraulic telescopic mechanism 10 is reduced when the piston rod is blocked, and the overload protection is provided for the piston rod.
It should be noted that, before use, the output pipeline 13 and the input pipeline 14 are respectively butted with a pipeline in a sewage discharge system through the first flange 3 and the second flange 4, when in use, sewage enters the interior of the first pump body 1 through the input pipeline 14, the first piston in the air cylinder 9 is controlled to do continuous longitudinal reciprocating motion through the hydraulic telescopic mechanism 10, the first piston moves downwards to compress the air in the second pump body 2, so that the diaphragm 16 expands towards one side of the first pump body 1, the sewage in the first pump body 1 is extruded and cannot flow back through the input pipeline 14 under the influence of the second check valve 8 in the middle of the input pipeline 14, the sewage passes through the output pipeline 13 to be discharged, the first piston moves upwards, the air pressure in the second pump body 2 is reduced to form a low-pressure environment, the diaphragm 16 expands towards one side of the air cylinder 9, the method comprises the steps of enabling the interior of a first pump body 1 to form a low-pressure environment, sucking sewage through a low-pressure adsorption principle, enabling the sewage which is discharged through an output pipeline 13 to be limited by a first one-way valve 6 in the middle of the output pipeline 13 and not to flow back to the interior of the first pump body 1 through the output pipeline 13, enabling the sewage to pass through an input pipeline 14 to enter the interior of the first pump body 1, and achieving the purpose of fluid pressurization conveying through continuous longitudinal reciprocating motion of a first piston, controlling a speed regulating motor 12 to start in the working process, enabling the speed regulating motor 12 to drive an impeller 15 to rotate at a high speed to enable liquid to generate centrifugal force, accelerating the fluid circulation speed, improving the sewage discharge working efficiency, reducing the rotating speed of the speed regulating motor 12 when blockage occurs, enabling the power of the speed regulating motor 12 to be consistent before and after regulation, enabling the rotating speed of the speed regulating motor 12 to be in inverse proportion to the torque, and enabling the rotating speed of the torque to be larger if the rotating speed of the speed regulating motor 12 is slower, the device can force the blocking substance to move to play a role in dredging blockage, and can effectively prevent the inside of the sewage pump from being blocked in the whole sewage discharge process, in addition, when the blocking substance is a fibrous medium, the blocking substance is easy to be wound with the impeller 15, therefore, the speed regulating motor 12 and the impeller 15 are difficult to play a role in dredging blockage, the piston rod in the structure of the hydraulic telescopic mechanism 10 moves downwards, so that a high-pressure environment is formed in the second pump body 2, the diaphragm 16 cannot expand towards the direction of the first pump body 1 under the resistance of the blocking substance, the air pressure in the second pump body 2 is gradually increased along with the continuous pressing of the piston rod in the hydraulic telescopic mechanism 10, when the air pressure is higher than the threshold value of the pressure relief device 11, the second piston 25 in the pressure relief device 11 is pushed to move upwards, the spring 24 is stressed to contract, when the spring 24 is higher than the exhaust pipeline 23, the pressure relief channel is unblocked, the pressure relief is automatically completed, the downward resistance of the piston rod in the structure of the hydraulic telescopic mechanism 10 is reduced, the overload protection is provided for the device, and the device is practical.
Next, as shown in fig. 2, the through holes on the position-limiting isolation layer 17 have several circles, and each circle is formed by a plurality of through holes distributed uniformly in the circumference. The limiting interlayer 17 is provided with a moving ring 28 positioned between the limiting interlayer 17 and the diaphragm 16, the moving ring 28 is provided with a plurality of striking rods 29 inserted into a circle of through holes at the outermost side, the striking rods 29 are always inserted into the through holes, and the outer diameter of the striking rods 29 is smaller than the aperture of the through holes.
A first inner limiting ring 30 is arranged on one side of the inside of the first pump body 1 close to the diaphragm 16, a second inner limiting ring 31 is arranged on one side of the inside of the second pump body 2 close to the diaphragm 16, the diaphragm 16 is positioned between the first inner limiting ring 30 and the second inner limiting ring 31, the inner diameter of the first inner limiting ring 30 is smaller than that of the second inner limiting ring 31, one end face of the first inner limiting ring 30 far away from the diaphragm 16 is connected with the moving ring 28 through a plurality of guide pins 32, and the inner diameter of the moving ring 28 is smaller than that of the first inner limiting ring 30.
The inner wall of the first inner limiting ring 30 is provided with a first circular arc convex surface, the inner wall of the second inner limiting ring 31 is provided with a second circular arc convex surface, the inner wall of the moving ring 28 is provided with a third circular arc convex surface, and when the diaphragm 16 is bulged towards the first pump body 1, the diaphragm 16 at the moment can be contacted with the moving ring 28 and force the impact rod 29 on the moving ring 28 to impact the filter screen 18, so that the accumulation of filter substances at the outer edge of the filter screen 18 is solved to the greatest extent.
At the same time, during this process, first inner limiting ring 30 and shift ring 28 constrain septum 16 and force septum 16 into a tapered configuration to preserve the compressibility of septum 16.
In addition, first inner limiting ring 30 and second inner limiting ring 31 may provide a circumferential outer edge grip to diaphragm 16 and protection to the circumferential edge of diaphragm 16 when it is bulged, to facilitate extending the useful life of diaphragm 16.
A return spring is sleeved at one end of each guide pin 32 close to the limiting interlayer 17, one end of each return spring acts on a convex ring at one end of each guide pin 32 close to the limiting interlayer 17, the other end of each return spring acts on one end face of the movable ring 28 close to the limiting interlayer 17, and the return spring forces the impact rod 29 to return to the end face of the end far away from the movable ring 28 and then form a distance with the filter screen 18.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.