CN213016933U

CN213016933U - Impeller mounting structure for magnetic drive pump

Info

Publication number: CN213016933U
Application number: CN202022020224.2U
Authority: CN
Inventors: 胡辉; 徐华茂; 吴朝标; 李伟忠; 吴仲翔
Original assignee: Zhejiang Emida Pumps Co ltd
Current assignee: Zhejiang Emida Pumps Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-04-20
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses an impeller mounting structure for magnetic drive pump, including pivot, stop gear, impeller body and block, the one end of pivot is inserted in the impeller body and is connected with its screw thread, the screw thread has cup jointed stop gear in the pivot, the one end of stop gear inserts in the impeller body and is connected with its screw thread, the block is installed to the block of the one end that just keeps away from stop gear on the impeller body, the one end that the pivot is located the impeller body inserts in the block and is connected with its screw thread, the utility model relates to an impeller mounting structure for magnetic drive pump, this structure carries out the centre gripping fixed to the impeller body through stop gear and block, ensures that the impeller can firmly cup joint in the pivot, exerts thrust through the spring to the pivot, has effectively reduced the risk that block and pivot break away from the connection, even long-time use, threaded connection between block and the pivot also can not become flexible, effectively improves the connection firmness and greatly improves the anti-falling performance.

Description

Impeller mounting structure for magnetic drive pump

Technical Field

The utility model relates to an impeller mounting structure, in particular to impeller mounting structure for magnetic drive pump belongs to magnetic drive pump technical field.

Background

The magnetic drive pump is mainly composed of a pump head, a magnetic drive device, a motor, a base and other parts, wherein the magnetic drive device of the magnetic drive pump is composed of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolation sleeve.

Traditional impeller for magnetic drive pump only adopts simple threaded connection mode with the pivot in the installation of reality, easily causes the threaded connection between block and the pivot to produce not hard up after using for a long time, and the connection is insecure, causes the impeller to drop from the pivot easily, greatly reduced its anti-drop performance, to this, need design an impeller mounting structure for magnetic drive pump.

SUMMERY OF THE UTILITY MODEL

The utility model provides an impeller mounting structure for magnetic drive pump, the effectual simple threaded connection mode of adoption that exists among the prior art that has solved easily causes threaded connection between block and the pivot to produce not hard up after using for a long time, causes the impeller to drop from the pivot easily, has reduced the problem of its anti-drop performance.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an impeller mounting structure for magnetic drive pump, including pivot, stop gear, impeller body and block, this internal and rather than threaded connection of impeller is inserted to the one end of pivot, the screw thread has cup jointed stop gear in the pivot, just this internal and rather than threaded connection of impeller is inserted to stop gear's one end, the block is installed to the last one end block of just keeping away from stop gear of impeller body, the pivot is located this internal one end of impeller and inserts in the block and rather than threaded connection.

As a preferred technical scheme of the utility model, be equipped with first screw thread mouth on the outer wall of pivot, just first screw thread mouth and stop gear threaded connection, be equipped with the second screw thread mouth on the outer wall of pivot, just second screw thread mouth and block threaded connection, the fixed position that just is located in the pivot between first screw thread mouth and the second screw thread mouth has the butt joint circle, the one end that the pivot is close to the block is dug there is the draw-in groove.

As a preferred technical scheme of the utility model, stop gear includes connecting sleeve, just the connecting sleeve screw thread cup joints in the pivot, the connecting sleeve inner wall is opened and is chiseled there is first internal thread groove, first internal thread groove and first screw thread mouth threaded connection, connecting sleeve's one end fixed mounting has the limiting plate, the one end fixed mounting that connecting sleeve was kept away from to the limiting plate has the pressfitting sleeve, the outer wall of pressfitting sleeve is equipped with the third screw thread mouth, just third screw thread mouth and impeller body threaded connection.

As a preferred technical scheme of the utility model, impeller body's one end is opened and is dug there is first recess, fixed mounting has the sealing washer in the first recess, the block is connected in inserting first recess and rather than, just the inseparable centre gripping of sealing washer is between the outer wall of block and first recess inner wall, impeller body keeps away from the one end of first recess and is opened and is dug there is the second recess, the inner wall of second recess is opened and is dug there is the second internal thread groove, just second internal thread groove and third screw thread mouth threaded connection.

As the utility model discloses a preferred technical scheme, it has the butt joint groove to open the chisel in the impeller body, just butt joint groove and second recess intercommunication, the butt joint groove is connected with the butt joint circle block, it has circular opening to open the chisel in the impeller body, the butt joint groove is through circular opening and first recess intercommunication.

As a preferred technical scheme of the utility model, the block inner wall is opened and is chiseled there is the third internal thread groove, third internal thread groove and second screw thread mouth threaded connection, fixed mounting has built-in base in the block, fixed mounting has the card post on the built-in base, the one end that the built-in base was kept away from to the card post is inserted in the draw-in groove and is connected rather than the block, fixed mounting has the spring on the built-in base, just the spring cup joints on the card post, the spring centre gripping is in the position between built-in base and pivot.

The utility model discloses the beneficial effect who reaches is: this structure is provided with stop gear, the block adopts original threaded connection mode to dock with the pivot, carry out the centre gripping to the impeller through stop gear and block, strengthen the fastness that impeller and pivot are connected, be provided with the spring in the block in addition, can exert thrust to the pivot, effectively increase the fastness that block and pivot are connected, it is not hard up to prevent to use threaded connection between block and the pivot for a long time to produce, effectively improved the fastness of its connection, improved its anti-drop performance greatly.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the rotating shaft of the present invention;

FIG. 3 is a schematic structural view of a limiting mechanism of the present invention;

fig. 4 is a cross-sectional view of the impeller body of the present invention;

fig. 5 is a schematic view of the internal structure of the cap of the present invention.

In the figure: 1. a rotating shaft; 11. a first threaded port; 12. a butt joint ring; 13. a card slot; 14. a second threaded port; 2. a limiting mechanism; 21. a connecting sleeve; 22. a first internally threaded groove; 23. pressing the sleeve; 24. a third threaded port; 25. a limiting plate; 3. an impeller body; 31. a first groove; 32. a seal ring; 33. a second internally threaded groove; 34. a butt joint groove; 35. a second groove; 36. a circular through opening; 4. capping; 41. a base is arranged inside; 42. a spring; 43. a third internally threaded groove; 44. and (5) clamping the column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1-5, the impeller mounting structure for magnetic pump of the present invention comprises a rotating shaft 1, a limiting mechanism 2, an impeller body 3 and a cap 4, wherein one end of the rotating shaft 1 is inserted into the impeller body 3 and connected with the same by screw thread, the limiting mechanism 2 is sleeved on the rotating shaft 1 by screw thread, one end of the limiting mechanism 2 is inserted into the impeller body 3 and connected with the same by screw thread, the cap 4 is mounted on the impeller body 3 and connected with one end far from the limiting mechanism 2 by snap fit, one end of the rotating shaft 1 located in the impeller body 3 is inserted into the cap 4 and connected with the same by screw thread, the impeller body 3 is clamped and fixed by the limiting mechanism 2 and the cap 4, the firmness of the connection between the impeller body 3 and the rotating shaft 1 is enhanced, and the spring 42 is mounted in the cap 4, the risk of the cap 4 being disconnected from the rotating shaft 1 is reduced, even if the impeller mounting structure is used for a long, effectively improves the connection firmness and greatly improves the anti-falling performance.

The impeller body 3 is provided with a butt joint groove 34, the butt joint groove 34 is communicated with a second groove 35, the butt joint groove 34 is connected with a butt joint ring 12 in a clamping manner, the impeller body 3 is provided with a circular through hole 36, the butt joint groove 34 is communicated with a first groove 31 through the circular through hole 36, the first groove 31 is communicated with the butt joint groove 34 through the circular through hole 36, it is ensured that the rotating shaft 1 can pass through the butt joint groove 34 and extend into the first groove 31, the cover cap 4 is in threaded connection with the rotating shaft 1, the outer wall of the rotating shaft 1 is provided with a first threaded port 11, the first threaded port 11 is in threaded connection with the limiting mechanism 2, the outer wall of the rotating shaft 1 is provided with a second threaded port 14, the second threaded port 14 is in threaded connection with the cover cap 4, the position of the rotating shaft 1 between the first threaded port 11 and the second threaded port 14 is fixedly provided with the butt joint ring 12, one end of the rotating shaft 1 close to the cover cap 4 is provided with a clamping groove 13, and the second threaded, the cap 4 and the rotating shaft 1 are ensured to be connected into a whole by screw thread, the limiting mechanism 2 is ensured to be firmly sleeved on the rotating shaft 1 by the screw thread connection between the first threaded port 11 and the first inner threaded groove 22, the limiting mechanism 2 comprises a connecting sleeve 21, the connecting sleeve 21 is sleeved on the rotating shaft 1 by screw thread, the first inner threaded groove 22 is chiseled on the inner wall of the connecting sleeve 21, the first inner threaded groove 22 is connected with the first threaded port 11 by screw thread, a limiting plate 25 is fixedly arranged at one end of the connecting sleeve 21, a pressing sleeve 23 is fixedly arranged at one end of the limiting plate 25 far away from the connecting sleeve 21, a third threaded port 24 is arranged on the outer wall of the pressing sleeve 23, the third threaded port 24 is connected with the impeller body 3 by screw thread connection between the third threaded port 24 and the second inner threaded groove 33, the limiting mechanism 2 and the impeller body 3 are ensured to be firmly connected into a whole, and the pressing sleeve 23 is used for limiting the abutting, the butt joint ring 12 is firmly embedded into the butt joint groove 34, a third internal thread groove 43 is chiseled on the inner wall of the cap 4, the third internal thread groove 43 is in threaded connection with the second thread opening 14, a built-in base 41 is fixedly installed in the cap 4, a clamping column 44 is fixedly installed on the built-in base 41, one end, far away from the built-in base 41, of the clamping column 44 is inserted into the clamping groove 13 and is in clamping connection with the clamping groove, a spring 42 is fixedly installed on the built-in base 41 and is sleeved on the clamping column 44, the spring 42 is clamped between the built-in base 41 and the rotating shaft 1, the precise butt joint of the cap 4 and the rotating shaft 1 is ensured through the clamping butt joint between the clamping column 44 and the clamping groove 13, the thrust is applied to the rotating shaft 1 through the spring 42, the firmness of the connection of the cap 4 and the rotating shaft 1 is effectively improved, a first groove 31 is chiseled on one end of the impeller body 3, a sealing ring 32 is fixedly installed in the first, and the sealing washer 32 closely centre gripping has the second recess 35 in the one end of impeller body 3 keeping away from first recess 31 chisel, and the inner wall of second recess 35 chisel has second internal thread groove 33, and second internal thread groove 33 and third screw thread mouth 24 threaded connection, with cap 4 card in first recess 31, ensure the accurate butt joint of cap 4 and impeller body 3, can improve the leakproofness of cap 4 and impeller body 3 joint gap department through sealing washer 32.

Specifically, when the utility model is used, firstly the cap 4 is inserted into the first groove 31, then the rotating shaft 1 is inserted into the impeller body 3, the threaded connection between the third inner thread groove 43 and the second thread opening 14 ensures that the thread of the cap 4 is sleeved at one end of the rotating shaft 1, at the moment, the clamping column 44 is inserted into the clamping groove 13 and is clamped with the clamping column, the forward butt joint of the cap 4 and the rotating shaft 1 can be ensured, the coaxiality of the connection between the cap 4 and the rotating shaft 1 is effectively enhanced, the spring 42 is extruded by the rotating shaft 1 to be in a compression state, then the spring 42 applies thrust to the rotating shaft 1, the connection between the third inner thread groove 43 and the second thread opening 14 can be firmer, the firm thread of the limiting mechanism 2 is sleeved on the rotating shaft 1, at the moment, the pressing sleeve 23 is inserted into the second groove 35, and the threaded connection between the second inner thread groove 33 and the third thread opening 24 is realized, ensure that stop gear 2 and impeller body 3 are firm to be connected as an organic whole, can carry on spacingly to docking collar 12 through pressfitting sleeve 23, ensure to dock the stable joint of collar 12 in butt joint groove 34, impeller body 3 is firmly centre gripping between block 4 and stop gear 2 after the installation, for traditional impeller mounting structure, this structure is on the threaded connection mode of basis, stop gear 2 has been increased, the fastness of being connected of impeller body 3 and pivot 1 has been strengthened, and install spring 42 in block 4, the risk that block 4 and pivot 1 break away from the connection has been reduced, even long-time use, threaded connection between block 4 and the pivot 1 also can not become flexible, the fastness of its connection has effectively been improved, its anti-drop performance has been improved greatly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an impeller mounting structure for magnetic drive pump, includes pivot (1), stop gear (2), impeller body (3) and block (4), its characterized in that, the one end of pivot (1) insert in impeller body (3) and rather than threaded connection, stop gear (2) have been cup jointed to the screw thread in pivot (1), just the one end of stop gear (2) is inserted in impeller body (3) and rather than threaded connection, the block (4) are installed to the one end block that just keeps away from stop gear (2) on impeller body (3), the one end that pivot (1) is located impeller body (3) is inserted in block (4) and rather than threaded connection.

2. The impeller mounting structure for the magnetic pump according to claim 1, wherein a first threaded opening (11) is formed in an outer wall of the rotating shaft (1), the first threaded opening (11) is in threaded connection with the limiting mechanism (2), a second threaded opening (14) is formed in the outer wall of the rotating shaft (1), the second threaded opening (14) is in threaded connection with the cap (4), a butt ring (12) is fixedly mounted on the rotating shaft (1) and located between the first threaded opening (11) and the second threaded opening (14), and a clamping groove (13) is formed in one end, close to the cap (4), of the rotating shaft (1).

3. The impeller mounting structure for the magnetic pump according to claim 1, wherein the limiting mechanism (2) comprises a connecting sleeve (21), the connecting sleeve (21) is in threaded sleeve connection with the rotating shaft (1), a first inner thread groove (22) is formed in the inner wall of the connecting sleeve (21), the first inner thread groove (22) is in threaded connection with the first thread opening (11), a limiting plate (25) is fixedly mounted at one end of the connecting sleeve (21), a pressing sleeve (23) is fixedly mounted at one end, away from the connecting sleeve (21), of the limiting plate (25), a third thread opening (24) is formed in the outer wall of the pressing sleeve (23), and the third thread opening (24) is in threaded connection with the impeller body (3).

4. The impeller mounting structure for the magnetic pump according to claim 1, wherein one end of the impeller body (3) is perforated with a first groove (31), a seal ring (32) is fixedly mounted in the first groove (31), the cap (4) is inserted into the first groove (31) and is in snap-fit connection with the first groove, the seal ring (32) is tightly clamped between the outer wall of the cap (4) and the inner wall of the first groove (31), one end of the impeller body (3) away from the first groove (31) is perforated with a second groove (35), the inner wall of the second groove (35) is perforated with a second inner thread groove (33), and the second inner thread groove (33) is in threaded connection with the third thread opening (24).

5. The impeller mounting structure for the magnetic pump according to claim 1, wherein the impeller body (3) has a butt groove (34) bored therein, and the butt groove (34) communicates with the second groove (35), the butt groove (34) is snap-fitted to the butt ring (12), the impeller body (3) has a circular through hole (36) bored therein, and the butt groove (34) communicates with the first groove (31) through the circular through hole (36).

6. The impeller mounting structure for the magnetic pump is characterized in that a third internal thread groove (43) is formed in the inner wall of the cover cap (4), the third internal thread groove (43) is in threaded connection with the second thread port (14), an internal base (41) is fixedly mounted in the cover cap (4), a clamping column (44) is fixedly mounted on the internal base (41), one end, far away from the internal base (41), of the clamping column (44) is inserted into the clamping groove (13) and is in clamping connection with the clamping groove, a spring (42) is fixedly mounted on the internal base (41), the spring (42) is sleeved on the clamping column (44), and the spring (42) is clamped between the internal base (41) and the rotating shaft (1).