CN201106566Y - Improved structure of sewage treatment pump - Google Patents

Abstract

The utility model provides an improved structure of a sewage treatment pump, which is mainly characterized in that an annular fixed cutter seat and a movable cutter are additionally arranged between a water blade arranged in a water blade chamber of a lower seat of the pump and a wheel cutter arranged at a sediment inlet at the bottom of the water blade chamber, when a motor of the pump is started to operate, the water blade, the movable cutter and the wheel cutters can be synchronously driven to rotate, and sediment in a sewage tank is sucked by the sediment inlet at the lower part of the water blade chamber through generating water flow suction force, after the sediment is subjected to a first section of stirring and scattering operation by matching the wheel cutter with a gear ring, the sediment is subjected to a second section of stirring and scattering operation by matching the movable cutter with the fixed cutter seat, a looser crushing effect is obtained, finally, a guide pipe connected with the water blade and arranged towards the sediment outlet is utilized to discharge, the possibility of caking phenomenon and probability of being blocked between the water blades are effectively reduced, thereby greatly improving the operation efficiency of the sewage treatment pump, and the failure probability and the maintenance cost can be reduced.

Description

Improved Structure of Sewage Treatment Pumps

technical field

The utility model relates to an improved structure of a sewage treatment pump.

Background technique

The structural design of sewage treatment pumps generally used in sewage treatment tanks, please refer to Figures 1 and 2, is mainly to connect a water blade 2 and a round knife 3 to the motor shaft 1 of the pump, so that the water blade 2 And the wheel cutter 3 can be rotated by the motor transmission, and the lower edge surface of the water blade 2 is provided with a plurality of blades arranged radially in a swirl, and the wheel cutter 3 is provided with a predetermined number of blades, so that the water leaf 2 It is assembled in the water leaf chamber 5 of the pump lower seat 4, and the wheel cutter 3 is assembled in the sediment inlet 6 made at the lower part of the water leaf chamber 5, and a fixed type is also made on the inner wall of the sediment inlet 6. The gear ring 7 is provided with a sediment outlet 8 on one side of the water leaf chamber 5, and the sediment outlet 8 can be connected with the outlet pipe (not drawn) by a universal joint. According to this structure, the motor of the pump When starting to run, the mandrel 1 can drive the water blade 2 and the wheel cutter 3 to rotate to generate water flow suction, so that the sediment at the bottom of the sewage tank can be sucked from the sediment inlet 6 at the lower part of the water leaf chamber 5, and at the same time, the wheel cutter 3 Cooperate with the gear ring 7 to crush and disperse the sediment, then guide it to the sediment outlet 8 through the water blade 2, and finally discharge it along the outlet pipe to achieve the function and purpose of cleaning the sediment at the bottom of the sewage tank.

However, in terms of the design of the lifting structure, the crushing and breaking up of the sediment is achieved by using the wheel cutter at the sediment inlet at the lower part of the water leaf chamber together with the gear ring, and the stroke of the crushing operation is too short. The blades of the wheel knife are usually only made of two sets, resulting in an unsatisfactory crushing effect on the sediment, and it is easy to have a problem of large blocky sediment getting stuck on the blade of the water blade, resulting in the sediment being unable to be crushed. The smooth discharge may even affect the normal operation performance of the water leaves, resulting in poor efficiency and high failure rate, which really need to be solved and improved.

Again, as the disclosed structure of the U.S. Patent No. 7159806 B1 patent case, in the sediment inlet at the bottom of the lower seat of the pump, a group of wheel knives are still used to crush and disperse the sucked sediment, although the wheel The knife has to be lifted up and down for crushing, but the effect is still not obvious, and the sediment cannot be completely crushed, so it can hardly be called a perfect design.

In view of the existing problems and deficiencies of the existing sewage treatment pumps, the creators set out to conduct research and improvement, based on their experience and technology in related industries, and then developed the improved structure of the utility model.

Utility model content

The main purpose of this utility model is to provide an improved structure of a sewage treatment pump, which can completely break up and disperse the sediment at the bottom of the sewage tank, so that there will be no sediment accumulated on the water leaf blade, so that the water leaf can be easily and smoothly It can be discharged out efficiently, greatly improving the working efficiency of the sewage treatment pump and reducing its failure rate.

For reaching above-mentioned purpose, the utility model adopts following scheme:

An improved structure of a sewage treatment pump, which is mainly to install a lower seat at the bottom of the sewage treatment pump. The lower seat is planned to have a water leaf chamber for a separate water leaf assembly, and the water leaf is connected with the built-in motor of the pump The mandrel is assembled, and a sediment inlet is prefabricated at the bottom of the water leaf chamber. A set of wheel cutters and a gear ring are built in the sediment inlet. The wheel cutter is coaxially assembled with the water leaf and the motor mandrel to obtain The motor synchronously drives the rotation performance of the water blade and the wheel knife, and the gear ring is fixed on the inner wall of the sediment inlet, and a sediment outlet is provided on the side of the water blade chamber. The sediment outlet is connected with a universal joint and a discharge pipe Connecting, between the water leaf of the water leaf chamber and the wheel knife of the sediment inlet, a set of ring-shaped fixed knife seats and a group of movable water jets are added. The fixed knife seats are locked and fixed at the top of the sediment inlet at the bottom of the water leaf chamber , and the movable water jet is set within the range of the shaft hole of the fixed knife seat, and the movable water jet is combined with the motor mandrel, and the water blade, the movable water jet and the wheel knife are driven and rotated synchronously by the motor.

The upper edge of the ring portion of the fixed knife seat is provided with a predetermined number of blades near the periphery of the shaft hole, and several bolt holes are prefabricated on the ring portion, and the fixed knife seat is locked and fixed to the water leaf chamber with bolts. The concave part of the expansion ring made on the periphery of the top of the entrance, and in conjunction with the addition of the fixed knife seat and the shape of the blade, a storage space for the fixed knife seat and the movable water knife is reserved on the periphery of the shaft hole of the water blade. The center of the movable waterjet is set as a shaft hole, which is connected with the motor mandrel assembly, and the periphery of the movable waterjet is provided with a predetermined number of blades, which are connected with the blades of the fixed knife seat. form microcontacts.

The reverse surface of the blade of the fixed knife seat is designed as an oblique cone edge surface, while the blade of the movable water knife is designed as reverse rotary cutting.

The size of the accommodating space on the periphery of the shaft hole of the water blade is consistent with the distance from the outer edges of the two blades at the opposite angles of the fixed knife seat.

Adopting the above-mentioned scheme, the utility model is structurally designed, mainly adding an annular fixed knife seat and a movable water knife between the water leaf in the water leaf chamber of the pump lower seat and the wheel knife in the sediment inlet at the bottom, so as to Form the second stage of crushing and breaking up of the sediment, so that the sediment is sucked from the sediment inlet at the lower part of the water leaf chamber, and after the first stage of crushing and breaking up is carried out by the wheel cutter, it can be introduced into the water In front of the leaf chamber, the second stage of crushing and dispersing operation is carried out to obtain a looser crushing effect and prevent the sediment from agglomerating and accumulating between the blades of the water leaves, thereby greatly improving the efficiency of sediment treatment and drainage , and can reduce its failure rate, achieving excellent industrial applicability and practical value.

Description of drawings

Fig. 1 is a schematic diagram of the partial structural relationship of a conventional sewage treatment pump;

Fig. 2 is a schematic diagram of the local structural relationship of another type of conventional sewage treatment pump;

Fig. 3 is a structural exploded schematic diagram of a partial component of a preferred embodiment of the utility model;

Fig. 4 is a schematic exploded view of partial components in an inverted state of a preferred embodiment of the utility model;

Fig. 5 is a schematic diagram of the partial structural relationship of a preferred embodiment of the present invention;

Fig. 6 is the schematic diagram of the partial structural relationship shown by A-A' of the preferred embodiment of the utility model;

Fig. 7 is a schematic diagram of the partial structural relationship between the wheel cutter and the gear ring of the present invention;

Fig. 8 is a schematic diagram of the local structure of the utility model implemented in a sewage treatment pump;

Fig. 9 is a schematic diagram of the partial structure of the utility model implemented in another type of sewage treatment pump.

Description of main component symbols

1 mandrel 2 water leaves 3 round cutters

4 Lower seat 5 Water leaf chamber 6 Sediment inlet

7 gear ring 8 sediment outlet 10 pump

11 Motor 12 Mandrel 20 Lower seat

21 water leaf chamber 22 sediment inlet 23 sediment outlet

24 expanded diameter ring concave 30 water leaves 31 blades

32 shaft hole 40 wheel cutter 41 gear ring

42, 43 blade 50 fixed knife seat 51 ring

52 shaft holes 53 blades 54 blade faces

55 bolt hole 56 bolt 60 movable water jet

61 shaft holes 62 blades

Detailed ways

Regarding the structural composition, technical means and effect realization of the present utility model, please cooperate with the accompanying drawings and embodiments to make a further detailed description in the following:

Please refer to the structural decomposition diagrams of Fig. 3 and 4, the schematic structural diagrams of Fig. 5 to Fig. 7 and the structural action diagrams of Fig. 8 and 9, which are preferred embodiments of the present utility model, as shown in the figure, its sewage treatment pump In terms of structural design, the base 20 is mainly connected to the bottom of the sewage treatment pump 10, and the base is planned to be provided with a water leaf chamber 21 for the assembly of an additional water leaf 30, which is connected with the pump. 10. The mandrel 12 groups of the built-in motor 11 are connected to obtain a linkage relationship, and a sediment inlet 22 is prefabricated at the bottom of the water leaf chamber 21. A set of wheel cutters 40 and a gear ring 41 are built in the sediment inlet 22. The wheel The cutter 40 is coaxially assembled with the water blade 30 and the motor 11 mandrel 12 to achieve the effect of the motor 11 synchronously driving the rotation of the water blade 30 and the wheel cutter 40, while the gear ring 41 is fixed on the inner wall of the sediment inlet 22, The wheel cutter 40 and the gear ring 41 are respectively provided with blades 42, 43 for rotary cutting and pulverizing the sediment, and a sediment outlet 23 is provided on one side of the water leaf chamber 21, and the sediment outlet 23 can be connected with a universal joint. It is connected with the outlet pipe (not drawn), and thus constitutes the basic functional structure of this type of sewage treatment pump. When the motor 11 of the pump 10 starts running, it will synchronously drive the water blade 30 and the wheel cutter 40 to generate water flow. The sediment at the bottom of the sewage tank is sucked in by the sediment inlet 22 at the bottom of the water leaf chamber 21, and at the same time, the sediment is broken up by the wheel knife 40 and the gear ring 41, and then sent to the sediment outlet through the water blade 30 23 guide row, and finally discharge along the outlet pipe to achieve the function and purpose of cleaning the sediment at the bottom of the sewage tank;

In order to improve the crushing and dispersing performance of the sediment, the utility model is structurally designed to include the water leaf 30 provided in the water leaf chamber 21 of the lower seat 20 of the pump 10 and the wheel cutter provided at the sediment inlet 22 at the bottom of the pump. 40, add an annular fixed knife seat 50 and a movable water knife 60, the upper edge surface of the ring portion 51 of this fixed knife seat 50 is made with a predetermined number of blades 53 by the periphery of the shaft hole 52, and the blades The reverse surface of 53 is an oblique cone edge surface 54, and several bolt holes 55 are prefabricated in the ring portion 51, so that bolts 56 can be used to lock and fix the fixed knife seat 50 to the top periphery of the water leaf chamber 21 relative to the sediment inlet 22. The expanded diameter ring recess 24 that is made, and cooperate with this fixed knife seat 50 to set up and its blade 53 type, the reverse vortex radial blade 31 of this water blade 30 lower edge surface will not be able to extend by its axis hole 32 places. However, appropriate accommodation space must be reserved on the periphery of the shaft hole 32. The size of the accommodation space is roughly in line with the distance from the outer edge of the opposite corner of the fixed knife seat 50 to the two blades 53, so that the fixed knife seat 50 can be provided. The blade 53 and the movable water knife 60 are accommodated so that the water blade 30 will not be disturbed by the fixed knife seat 50 when it rotates, and the movable water knife 60 is set within the shaft hole 52 of the fixed knife seat 50, and the movable water knife The center of the knife 60 is set as a shaft hole 61, so that it can be connected with the motor 11 spindle 12, and the periphery of the base body of the movable water knife 60 is provided with a predetermined number of blades 62, and the blades 62 are reversed. Rotary cutting design, and its blade 62 obtains the micro-contact relative relationship with the blade 53 of the fixed knife seat 50, thereby constituting the improved structure of the present utility model;

Through the compositional design of the upper structure, when the motor 11 of the pump 10 starts to run, the coaxial relationship between the mandrel 12, the pair of water blades 30, the additional movable water knife 60, and the existing wheel knife 40 will make the The water blade 30, the movable water knife 60 and the wheel knife 40 are rotated synchronously by the motor 11 to form a water flow suction effect, and the sediment deposited on the bottom of the sewage tank is sucked into the sediment inlet 22 at the lower part of the pump 10 base 20, and after sedimentation The wheel cutter 40 in the material inlet 22 cooperates with the gear ring 41 to carry out the first stage of crushing and breaking up of the sediment, and then the movable water knife 60 cooperates with the fixed knife seat 50 to carry out the second stage of crushing and breaking up of the sediment. To achieve a looser crushing effect, so that the sediment will not agglomerate, and finally follow the blade 31 of the water blade 30 to discharge it to the outlet pipe connected to the sediment outlet 23, and then obtain high-efficiency sewage The function of the sediment at the bottom of the tank;

That is, in conjunction with the above description, it can be seen that the utility model is based on the improved design of the structure of the sewage treatment pump, and under the basic functional framework of its water blades and wheel knives, the sediment is crushed and guided. A set of fixed knife holders and a set of movable water jets are designed so that they can be combined with the existing wheel cutters to form a two-stage sediment crushing and breaking operation, so that the sediments can be matched with gears through the wheel cutters at the sediment inlet. After the first stage of crushing and breaking operation, the second stage of crushing and breaking operation can be performed on it through the fixed knife seat and movable water knife before the water blade is introduced, so as to ensure the loosening of the sediment state, effectively reducing the probability of possible agglomeration and accumulation between the blades of the water blade, thereby greatly improving the operating efficiency of its sewage treatment pump, and reducing its failure rate and maintenance cost. Overall, it is extremely The one with the best industrial utilization and practical value.

To sum up, the utility model is aimed at the structural improvement design of the sewage treatment pump for the drainage and treatment of the sediment at the bottom of the sewage tank. With the addition of a fixed knife seat and a movable water knife, it can make the sediment form The dual operation efficiency of the two-stage crushing and dispersing can effectively improve the crushing and dispersing performance of the sediment, and prevent the sediment from agglomerating and getting stuck between the blades of the water leaves, so as to greatly improve the treatment and drainage efficiency of the sediment , and can reduce its failure rate, it has excellent industrial applicability and practical value, it is an excellent and outstanding innovation, and a patent application is filed according to law.

Claims (4)

1. An improved structure of a sewage treatment pump, which is mainly to install a lower seat at the bottom of the sewage treatment pump. The lower seat is provided with a water leaf chamber for a separately made water leaf assembly. The water leaf is connected with the built-in motor of the pump. The mandrel assembly is connected to obtain a linkage relationship, and a sediment inlet is prefabricated at the bottom of the water leaf chamber. A set of wheel cutters and a gear ring are built in the sediment inlet. The wheel cutter is coaxial with the water leaf and the motor mandrel. Assembled, the motor synchronously drives the water blade and the wheel cutter to rotate, and the gear ring is fixed on the inner wall of the sediment inlet, and there is a sediment outlet on the side of the water blade chamber, and the sediment outlet is connected to the outlet by a universal joint. Pipe connection, characterized in that: Between the water leaf of the water leaf chamber and the wheel knife of the sediment inlet, a group of ring-shaped fixed knife seats and a group of movable water jets are added. The fixed knife seats are locked and fixed at the top of the sediment inlet at the bottom of the water leaf chamber, and The movable water jet is set within the range of the shaft hole of the fixed knife seat, and the movable water jet is combined with the motor mandrel, and the water blade, movable water jet and wheel knife are driven and rotated synchronously by the motor. 2. The improved structure of the sewage treatment pump according to claim 1, characterized in that: the upper edge of the ring portion of the fixed knife seat is provided with several blades near the periphery of the shaft hole, and several bolt holes are provided on the ring portion to The bolt locks and fixes the fixed knife seat to the recess of the expansion ring made by the water leaf chamber relative to the top periphery of the sediment inlet, and cooperates with the addition of the fixed knife seat and the shape of the blade, in the shaft hole of the water leaf The surrounding space is reserved for the fixed knife seat and the movable waterjet, and the center of the movable waterjet is set as a shaft hole, which is connected with the motor mandrel. The blade forms microcontact with the blade of the fixed knife seat. 3. The improved structure of the sewage treatment pump as claimed in claim 1, characterized in that: the reverse surface of the blade of the fixed blade seat is designed as an oblique cone blade surface, and the blade of the movable water knife is designed as reverse rotary cutting . 4. The improved structure of the sewage treatment pump according to claim 1, characterized in that: the size of the accommodation space around the shaft hole of the water blade is consistent with the distance between the outer edges of the two blades at the opposite angle of the fixed knife seat.

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