CN218151664U

CN218151664U - Anti-blocking sewage pump

Info

Publication number: CN218151664U
Application number: CN202222482439.5U
Authority: CN
Inventors: 谢建伟; 杨华伟; 袁钧婷
Original assignee: Yuelian Electromechanical Co ltd
Current assignee: Yuelian Electromechanical Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2022-12-27
Anticipated expiration: 2032-09-19

Abstract

The application relates to an anti-blocking sewage pump which comprises a pump body and a pump cover, wherein the outer wall of the pump cover is provided with a plurality of mounting blocks, the outer wall of the pump body is provided with a mounting groove, the mounting blocks are provided with first threaded holes, and the bottom wall of the mounting groove is provided with second threaded holes; still include elastic component, elastic component includes elastic component and stopper, and the one end of elastic component elasticity direction is connected on the mounting groove cell wall, and the other end of elastic component elasticity direction is connected on the stopper. According to the sewage pump, due to the arrangement of the elastic piece and the limiting block, another worker does not need to align the first threaded hole with the second threaded hole and tightly press the pump cover on the pump body, so that the installation efficiency of the worker on the sewage pump is improved, and the production cost of the sewage pump is reduced; the arrangement of the positioning block and the positioning groove realizes the preliminary position limitation of the pump cover on the pump body, and further brings convenience for workers to guide the installation block into the installation groove; due to the arrangement of the movable blade, the impeller is not easy to block, so that the motor is idle and damaged, and the service life of the sewage pump is prolonged.

Description

Anti-blocking sewage pump

Technical Field

The application relates to the field of sewage pumps, in particular to an anti-blocking sewage pump.

Background

The sewage pump belongs to one of centrifugal impurity pumps, is mainly used for conveying urban sewage, and because the sewage contains impurities of solid particles, a common water pump cannot be used for conveying the sewage, and the sewage pump with strong sewage discharge capacity and high anti-blocking performance is required for conveying the sewage.

The utility model discloses a grant utility model patent that publication number is CN210343723U discloses a hydraulic sewage pump, including the pump body, pump cover, hydraulic motor, blade, blow off pipe, export adapter sleeve and exit joint, the pump cover buckle closure is on the pump body, and the pump body forms a pressurized-water cavity with the pump cover, and the bottom at the pump body is installed to the pump cover, hydraulic motor installs on the pump cover, has the blade in the pressurized-water cavity, and hydraulic motor's output passes the pump cover and establishes with the blade in the pressurized-water cavity and be connected, be connected with the blow off pipe on the pump body, blow off pipe and pressurized-water cavity intercommunication, the blow off pipe is the bending pipe, exit joint passes through the exit end of export adapter sleeve connection at the blow off pipe.

To the above-mentioned correlation technique, the inventor thinks that when the pump cover passes through the flange mounting on the pump body, need a staff with the screw hole on the pump cover screw hole one-to-one correspondence pump body screw hole, another staff uses the bolt to wear to establish two screw holes one by one and makes the pump cover install on the pump body, this results in sewage pump's installation effectiveness lower to increase sewage pump's manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of pump cover and pump body installation, this application provides an anti-blocking sewage pump.

The application provides a pair of prevent stifled sewage pump adopts following technical scheme:

an anti-blocking sewage pump comprises a pump body and a pump cover arranged on the pump body, wherein the pump body and the pump cover are fixed through connecting bolts, a plurality of mounting blocks are arranged on the circumferential outer wall of the pump cover facing the pump body, mounting grooves for accommodating the mounting blocks are arranged on the circumferential outer wall of the pump body facing the pump cover in a one-to-one correspondence manner, first threaded holes for the connecting bolts to penetrate through are formed in the outer wall of the mounting blocks facing the pump body, second threaded holes for the connecting bolts to penetrate through are formed in the bottom wall of the mounting grooves, and the second threaded holes penetrate through two sides of the pump body in the direction close to or far away from the pump cover; still including being used for supporting the elastic component of tight mounting groove cell wall with the installation piece outer wall, elastic component includes elastic component and stopper, the one end of elastic component elasticity direction is connected on the mounting groove cell wall, the other end of elastic component elasticity direction is connected on the stopper, works as when elastic component elasticity orders about the stopper and slides towards the installation piece and support tight mounting groove cell wall with the installation piece outer wall, first screw hole axis and the coincidence of second screw hole axis.

Through adopting above-mentioned technical scheme, when preventing stifled sewage pump installation, when the staff got into the mounting groove with the installation piece one-to-one on the pump cover, elastic component elasticity ordered about the stopper and slided to installation piece outer wall and support tight mounting groove cell wall and first screw hole axis and the coincidence of second screw hole axis, it is preliminary spacing on the pump body to realize the pump cover, the staff wears to establish first screw hole and second screw hole with the connecting bolt one-to-one, realize the installation of pump cover on the pump body, it aims at the second screw hole and compresses tightly the pump cover on the pump body to need not another staff, thereby make the simple to operate of pump cover and the pump body, improve the staff and to the installation effectiveness of sewage pump, reduce the manufacturing cost of sewage pump.

Optionally, a first guide inclined surface is arranged on the outer wall of the limiting block facing the mounting block, and the first guide inclined surface is inclined towards the direction away from the pump body along the direction away from the axis of the first threaded hole; the mounting block is provided with a second guide inclined plane on the outer wall facing the limiting block, the second guide inclined plane inclines towards the direction close to the pump body along the direction far away from the axis of the pump cover, and when the first guide inclined plane is abutted against the second guide inclined plane, the mounting block is guided to enter the mounting groove.

Through adopting above-mentioned technical scheme, when the pump cover moved towards the pump body, in first spigot surface butt second spigot surface made the installation piece direction get into the mounting groove, elastic component elasticity ordered about the stopper and slided to installation piece outer wall and support tight mounting groove cell wall towards the installation piece, realized that the pump cover is preliminary spacing on the pump body, made the staff with the installation piece direction get into in the mounting groove convenient.

Optionally, a positioning block is arranged on the outer wall of the pump body facing the pump cover, a positioning groove for the positioning block to penetrate is arranged on the outer wall of the pump cover facing the pump body, and when the positioning block penetrates through the positioning groove, the axis of the first threaded hole coincides with the axis of the second threaded hole.

Through adopting above-mentioned technical scheme, when the constant head tank was worn to establish by the locating piece, the installation piece outer wall supported tight mounting groove cell wall and first screw hole axis and the coincidence of second screw hole axis, realized that the pump cover is preliminary spacing on the pump body, further made things convenient for the staff to get into the mounting groove with the installation piece direction in.

Optionally, the sewage pump further comprises an impeller rotatably arranged in the inner cavity of the pump cover and a rotating motor driving the impeller to rotate, the impeller is coaxially arranged on a motor shaft of the rotating motor, a water inlet hole for sewage to enter the inner cavity of the pump cover is formed in the outer wall, far away from the pump body, of the pump cover, a drain hole for sewage in the inner cavity of the pump cover to drain is formed in the radial outer wall of the pump cover, and moving blades are arranged on the circumferential edge, facing the water inlet hole, of the impeller.

By adopting the technical scheme, when the rotating motor drives the impeller to rotate, impurities in sewage enter the inner cavity of the pump cover from the water inlet hole, the movable blades fully cut the impurities in the inner cavity of the pump cover, so that the impeller is not easy to block, the motor is not easy to idle and is damaged, and the service life of the sewage pump is prolonged.

Optionally, the movable blades are inclined in the same clockwise direction.

By adopting the technical scheme, the movable blade inclines along the same clockwise direction, the contact area between the movable blade and impurities is increased, the movable blade can fully cut the impurities, the anti-blocking capacity of the sewage pump is further improved, and the service life of the submersible sewage pump is prolonged.

Optionally, a fixed blade is arranged on the circumferential hole wall of the water inlet hole, and the knife surface of the fixed blade abuts against the movable blade.

Through adopting above-mentioned technical scheme, when impurity in sewage got into pump body inner chamber from the inlet opening, the impurity centre gripping was between adjacent stationary blade, and the moving blade knife face cuts impurity with stationary blade knife face butt, makes the moving blade abundant to the impurity cutting to further improve sewage pump prevent blockking up the ability.

Optionally, the circumferential outer wall of the fixed blade is in threaded connection with the circumferential hole wall of the water inlet hole.

Through adopting above-mentioned technical scheme, when the wearing and tearing of stator blade knife face need be changed, twist and move the stator blade, realize the split of stator blade and pump cover, make things convenient for the staff to install new stator blade on the pump cover, need not to change whole pump cover, reduce the waste of material.

Optionally, a connecting hole for discharging impurities in the inner cavity of the pump cover is formed in the circumferential outer wall of the pump cover.

By adopting the technical scheme, after the impurities in the inner cavity of the pump cover are fully cut by the driven blade, the impurities are discharged from the connecting hole by the centrifugal force generated by the rotation of the impeller, so that the impurities are not easy to accumulate in the inner cavity of the pump cover, and the service life of the sewage pump is prolonged.

Optionally, a circumferential groove wall of the second threaded hole, which is far away from the first threaded hole, is provided with a countersunk hole for accommodating an end of the connecting bolt.

Through adopting above-mentioned technical scheme, connecting bolt's tip is located the countersunk head, and when making sewage pump use, the difficult collision connecting bolt that produces of impurity in the sewage is not hard up to improve the connection stability of the pump body and pump cover.

Optionally, still include the sealing washer, the sealing washer is located the pump body and towards the circumference outer wall of pump cover, the pump body supports tight pump cover circumference outer wall through the sealing washer and forms sealedly.

Through adopting above-mentioned technical scheme, the pump body supports tight pump cover circumference outer wall through the sealing washer and forms sealedly, and sewage is difficult for getting into pump body inner chamber from the junction of pump body and pump cover, makes the pump body difficult impaired to improve sewage pump's life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. due to the arrangement of the elastic piece and the limiting block, another worker is not required to align the first threaded hole with the second threaded hole and tightly press the pump cover on the pump body, the installation efficiency of the worker on the sewage pump is improved, and the production cost of the sewage pump is reduced;

2. the arrangement of the positioning block and the positioning groove realizes the preliminary position limitation of the pump cover on the pump body, and further brings convenience for workers to guide the installation block into the installation groove;

3. due to the arrangement of the movable blades, the impeller is not easy to block, so that the motor is not easy to idle and is damaged, and the service life of the sewage pump is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of an anti-blocking sewage pump in the embodiment of the present application.

Fig. 2 is a schematic view of the overall structure of the pump body in the embodiment of the present application.

Fig. 3 is an enlarged view of a point a in fig. 2.

Fig. 4 is a schematic view of the overall structure of a pump cover in the embodiment of the present application.

Fig. 5 is a schematic view of the internal overall structure of a pump cover in the embodiment of the present application.

Description of reference numerals: 1. a pump body; 11. mounting grooves; 111. a second threaded hole; 1111. a countersunk hole; 112. connecting grooves; 12. positioning a block; 13. accommodating grooves; 2. a pump cover; 21. mounting blocks; 211. a first threaded hole; 212. a second guide slope; 22. positioning a groove; 23. a water inlet hole; 231. fixing a blade; 2311. a water inlet gap; 24. a drain hole; 25. connecting holes; 3. a connecting bolt; 4. an elastic component; 41. an elastic member; 42. a limiting block; 421. a first guide slope; 5. an impeller; 51. a movable blade; 6. rotating the motor; 7. and (5) sealing rings.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses prevent stifled sewage pump. Referring to fig. 1, an anti-blocking sewage pump comprises a pump body 1 and a pump cover 2 connected to the pump body 1, wherein the pump cover 2 is fixed on the pump body 1 through a connecting bolt 3.

Referring to fig. 1 and 2, the anti-blocking sewage pump further includes a sealing ring 7, the sealing ring 7 may be made of rubber or silica gel, and in the embodiment of the present application, the sealing ring 7 is made of rubber and has a certain deformation capability; offer the holding tank 13 that is used for holding sealing washer 7 on the circumference outer wall of pump cover 2 of the pump body 1, when sealing washer 7 was located holding tank 13, the terminal surface that the pump body 1 was kept away from to sealing washer 7 supported tight pump cover 2 circumference outer wall and formed sealedly.

Referring to fig. 3 and 4, the pump cover 2 is evenly fixed with a plurality of installation blocks 21 towards the circumference outer wall interval of the pump body 1, and a plurality of mounting grooves 11 for holding the installation blocks 21 are provided towards the circumference outer wall one-to-one of the pump body 1 towards the pump cover 2, and the axes of the mounting grooves 11 are parallel to the length direction of the pump body 1.

Referring to fig. 1 and 4, a plurality of mounting blocks 21 are all provided with first threaded holes 211 for connecting bolts 3 to penetrate towards the end surface of the pump body 1, and the axes of the first threaded holes 211 are parallel to the axis of the pump cover 2.

Referring to fig. 1 and 4, a second threaded hole 111 for the connecting bolt 3 to penetrate is formed in the bottom wall of the mounting groove 11, the axis of the second threaded hole 111 is parallel to the axis of the pump body 1, the second threaded hole 111 penetrates through two sides of the pump body 1 along the axis of the second threaded hole 111, and a countersunk hole 1111 for accommodating the end of the connecting bolt 3 is coaxially formed in the circumferential groove wall of the second threaded hole 111 away from the pump cover 2.

Referring to fig. 3, the anti-blocking sewage pump further comprises an elastic component 4, a connecting groove 112 for accommodating the elastic component 4 is formed in the groove wall of the mounting groove 11, and the length direction of the connecting groove 112 is perpendicular to the axis of the pump body 1.

Referring to fig. 3, the elastic assembly 4 includes an elastic member 41 and a limiting block 42, the elastic member 41 may be an elastic metal sheet or a spring, and in the embodiment of the present invention, the elastic member 41 is a spring and has a certain deformation capability; one end of the elastic member 41 in the elastic direction is fixed to the bottom wall of the connecting groove 112, and the other end of the elastic member 41 in the elastic direction is fixed to the end face of the stopper 42.

Referring to fig. 3 and 4, a first guiding inclined surface 421 is fixed on the end surface of the limiting block 42 facing the mounting block 21, and the first guiding inclined surface 421 inclines in the direction away from the axis of the first threaded hole 211; the end face of the mounting block 21 facing the limiting block 42 is fixed with a second guiding inclined surface 212, and the second guiding inclined surface 212 inclines towards the direction close to the pump body 1 along the direction far away from the axis of the pump cover 2.

Referring to fig. 2 and 4, the outer wall of the pump body 1 facing the pump cover 2 is fixed with a positioning block 12, the length direction of the positioning block 12 is parallel to the length direction of the pump body 1, a positioning groove 22 for the positioning block 12 to penetrate is formed in the outer wall of the pump cover 2, the length direction of the positioning groove 22 is parallel to the axis of the pump cover 2, and the positioning groove 22 penetrates through the outer wall of the pump cover 2 along the axis of the positioning groove 22.

Referring to fig. 2 and 4, when the positioning block 12 penetrates the positioning slot 22, the plurality of mounting blocks 21 are inserted into the mounting grooves 11 in a one-to-one correspondence manner.

Referring to fig. 3 and 4, when the first guiding inclined surface 421 abuts against the second guiding inclined surface 212, the elastic member 41 elastically drives the stopper 42 to slide toward the mounting block 21 until the outer wall of the mounting block 21 is guided to abut against the groove wall of the mounting groove 11.

Referring to fig. 1 and 4, when the axis of the first threaded hole 211 coincides with the axis of the second threaded hole 111, one end of the connecting bolt 3 penetrates through the second threaded hole 111 and is in threaded connection with the hole wall of the first threaded hole 211, so that the pump body 1 and the pump cover 2 are mounted.

Referring to fig. 1 and 2, an anti-blocking sewage pump is still including rotating impeller 5 and the drive impeller 5 pivoted of connecting at the 2 inner chambers of pump cover and rotating motor 6, rotates motor 6 and connects at the 1 inner chamber of the pump body, rotates motor 6 motor shaft axis and the 1 length direction of the pump body and is parallel to each other, and the one end of rotating motor 6 motor shaft is worn to establish the 1 inner chamber of the pump body and is located the 2 inner chambers of pump cover, and impeller 5 coaxial fixation is at the tip of rotating motor 6 motor shaft and keeping away from the pump body 1.

Referring to fig. 1, the end surface of the pump cover 2, which is far away from the pump body 1, is provided with a water inlet hole 23 for sewage to enter the inner cavity of the pump cover 2, the axis of the water inlet hole 23 is overlapped with the axis of the pump cover 2, the radial end surface of the pump cover 2 is provided with a drain hole 24 for sewage in the inner cavity of the pump cover 2 to be discharged, and the axis of the drain hole 24 is perpendicular to the axis of the pump cover 2; the connecting hole 25 for discharging impurities in the inner cavity of the pump cover 2 is formed in the circumferential outer wall of the pump cover 2, the axis of the connecting hole 25 is overlapped with the axis of the pump cover 2, and the connecting hole 25 penetrates through the outer wall of the pump cover 2 along the direction close to or far away from the axis of the pump cover 2.

Referring to fig. 2 and 5, the impeller 5 includes two blades, the two blades are inclined in the same clockwise direction, the edges of the two blades facing the water inlet 23 are polished to be sharp to form the movable blade 51, the circumferential hole wall of the water inlet 23 close to the movable blade 51 is coaxially and threadedly connected with a plurality of fixed blades 231, the knife surfaces of the fixed blades 231 are abutted to the knife surface of the movable blade 51, and a water inlet gap 2311 for sewage to enter is reserved between the adjacent fixed blades 231.

Referring to fig. 2 and 5, when the rotating motor 6 drives the moving blade 51 to rotate, and the moving blade 51 rotates to intersect with the fixed blade 231, the cutting edge of the moving blade 51 coincides with the cutting edge of the fixed blade 231, and impurities in the water inlet gap 2311 are cut off, so that the impeller 5 is not easily blocked, and the anti-blocking capability of the sewage pump is improved.

The implementation principle of the anti-blocking sewage pump in the embodiment of the application is as follows: when the anti-blocking sewage pump is installed, the pump cover 2 is arranged towards the pump body 1 and penetrates through the positioning grooves 22 to the positioning blocks 12, the mounting blocks 21 are arranged towards the mounting grooves 11 in a one-to-one correspondence mode, the first guide inclined surface 211 abuts against the second abutting surface 212, the elastic piece 41 drives the limiting block 42 to slide towards the mounting blocks 21 to the outer wall of the mounting blocks 21 to guide and abut against the wall of the mounting grooves 11, the pump cover 2 is preliminarily limited on the pump body 1, the axis of the first threaded hole 211 coincides with the axis of the second threaded hole 111, a worker penetrates through the second threaded hole 111 at one end of the connecting bolt 3 and is in threaded connection with the wall of the first threaded hole 211, the pump cover 2 and the pump body 1 are installed, another worker does not need to align the first threaded hole 211 to the second threaded hole 111 and abut against the pump cover 2 on the pump body 1, the production efficiency of the sewage pump is improved, and the production cost of the sewage pump is reduced.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an prevent stifled sewage pump, includes the pump body (1) and sets up pump cover (2) on the pump body (1), the pump body (1) is fixed its characterized in that through connecting bolt (3) with pump cover (2): the pump cover (2) is provided with a plurality of mounting blocks (21) on the circumferential outer wall facing the pump body (1), mounting grooves (11) used for accommodating the mounting blocks (21) are correspondingly formed in the circumferential outer wall of the pump body (1) facing the pump cover (2) one by one, first threaded holes (211) for the connection bolts (3) to penetrate through are formed in the outer wall of the mounting blocks (21) facing the pump body (1), second threaded holes (111) for the connection bolts (3) to penetrate through are formed in the groove bottom wall of the mounting grooves (11), and the second threaded holes (111) penetrate through the two sides of the pump body (1) along the direction close to or far away from the pump cover (2); the mounting structure is characterized by further comprising an elastic assembly (4) used for enabling the outer wall of the mounting block (21) to abut against the groove wall of the mounting groove (11), the elastic assembly (4) comprises an elastic piece (41) and a limiting block (42), one end of the elastic piece (41) in the elastic direction is connected to the groove wall of the mounting groove (11), the other end of the elastic piece (41) in the elastic direction is connected to the limiting block (42), and when the elastic piece (41) enables the limiting block (42) to slide towards the mounting block (21) through elasticity and enables the outer wall of the mounting block (21) to abut against the groove wall of the mounting groove (11), the axis of the first threaded hole (211) and the axis of the second threaded hole (111) coincide.

2. The anti-clogging sewage pump of claim 1, further comprising: a first guide inclined plane (421) is arranged on the outer wall of the limiting block (42) facing the mounting block (21), and the first guide inclined plane (421) inclines towards the direction away from the pump body (1) along the direction away from the axis of the first threaded hole (211); the mounting block (21) is provided with a second guide inclined plane (212) on the outer wall facing the limiting block (42), the second guide inclined plane (212) inclines towards the direction close to the pump body (1) along the direction far away from the axis of the pump cover (2), and when the first guide inclined plane (421) abuts against the second guide inclined plane (212), the mounting block (21) is guided to enter the mounting groove (11).

3. The anti-clogging sewage pump of claim 1, further comprising: be provided with locating piece (12) on the outer wall of pump body (1) orientation pump cover (2), be provided with on the outer wall of pump cover (2) orientation pump body (1) and supply constant head tank (22) that locating piece (12) wore to establish, work as when constant head tank (22) are worn to establish in locating piece (12), first screw hole (211) axis and the coincidence of second screw hole (111) axis.

4. The anti-clogging sewage pump of claim 1, wherein: still including rotating impeller (5) and drive impeller (5) pivoted rotation motor (6) that set up at pump cover (2) inner chamber, impeller (5) coaxial setting is on the motor shaft that rotates motor (6), be provided with on the outer wall that supplies sewage to get into pump cover (2) inner chamber on pump cover (2) keeps away from pump body (1) inlet opening (23), pump cover (2) radial outer wall is provided with sewage exhaust wash port (24) that supply pump cover (2) inner chamber, impeller (5) are provided with movable blade (51) towards the circumference edge of inlet opening (23).

5. The anti-clogging sewage pump of claim 4, wherein: the movable blades (51) are inclined along the same clockwise direction.

6. The anti-clogging sewage pump of claim 4, wherein: the circumferential hole wall of the water inlet hole (23) is provided with a fixed blade (231), and the surface of the fixed blade (231) is abutted against the movable blade (51).

7. The anti-clogging sewage pump of claim 6, wherein: the circumferential outer wall of the fixed blade (231) is in threaded connection with the circumferential hole wall of the water inlet hole (23).

8. The anti-clogging sewage pump of claim 4, wherein: and the circumferential outer wall of the pump cover (2) is provided with a connecting hole (25) for discharging impurities in the inner cavity of the pump cover (2).

9. The anti-clogging sewage pump of claim 1, wherein: the circumferential groove wall of the second threaded hole (111) far away from the first threaded hole (211) is provided with a counter bore (1111) used for accommodating the end part of the connecting bolt (3).

10. The anti-clogging sewage pump of claim 1, wherein: still include sealing washer (7), sealing washer (7) are located the circumference outer wall of the pump body (1) towards pump cover (2), the pump body (1) supports tight pump cover (2) circumference outer wall through sealing washer (7) and forms sealedly.