Sewage pump with adjustable impeller gap

Abstract

The utility model discloses a sewage pump with an adjustable impeller gap, which comprises a pump body, a pump shell is arranged on one side of the pump body, a driving shaft is arranged in the pump body, one end of the driving shaft is movably connected with an impeller, the impeller is arranged in the pump shell, a liquid inlet is arranged on one side of the pump shell, and a liquid outlet is arranged on the other side of the pump shell. A liquid outlet is formed in the other side of the pump shell, and the distance between the impeller and the inner wall of the pump shell is adjusted through a distance adjusting assembly on the driving shaft. The utility model relates to the technical field of sewage pumps. According to the sewage pump with the adjustable impeller gap, through the arrangement of the distance adjusting assembly, the distance between the impeller and the pump shell is automatically adjusted, so that the gap between the impeller and the pump shell is reduced, the use efficiency of the pump is not reduced after the impeller is abraded, and the pump runs more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage pumps, in particular to a sewage pump with adjustable impeller clearance. Background Art

[0002] The sewage pump is a kind of equipment widely used in the field of drainage and sewage disposal. The quality of its performance directly affects the normal operation of the sewage system.

[0003] The impeller in the existing sewage pump will cause serious wear on the surface of the impeller after a long time. When the impeller of the sewage pump is severely worn, the gap between the impeller and the pump casing will become larger. If the gap is too large, the efficiency of the pump will decrease, the flow rate will decrease, and ultimately affect the production operation. In addition, the existing sewage pump generates large vibrations and produces large noise during operation. In this regard, we propose a sewage pump with an adjustable impeller gap to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a sewage pump with adjustable impeller clearance, which solves the technical problems raised in the background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sewage pump with adjustable impeller clearance, comprising a pump body, a pump casing is arranged on one side of the pump body, a driving shaft is arranged inside the pump body, an impeller is movably connected to one end of the driving shaft, the impeller is arranged inside the pump casing, a liquid inlet is opened on one side of the pump casing, a liquid outlet is arranged on the other side of the pump casing, and the distance between the impeller and the inner wall of the pump casing is adjusted by a distance adjustment component on the driving shaft;

[0006] The distance adjustment assembly includes an annular pad fixed on one side of the impeller, one end of the drive shaft passes through the annular pad and the impeller and extends to the outside of the impeller, an annular plate is fixed on the outer surface of the drive shaft, and a plurality of electric telescopic rods are fixed around one side of the annular plate, and the output ends of the plurality of electric telescopic rods are all fixed to one side of the annular pad.

[0007] Preferably, a mounting seat is provided at the bottom of the pump body, the bottom of the pump housing passes through the mounting seat and extends to the inside of the mounting seat, and a rubber pad is provided at the bottom of the mounting seat.

[0008] Preferably, a clamping assembly is provided between the mounting seat and the pump housing, the clamping assembly comprises a transverse groove provided inside the mounting seat, a slot is provided on one side of the pump housing, and an insertion rod is slidably connected to one side of the mounting seat.

[0009] Preferably, one end of the insertion rod passes through one side of the mounting seat and the transverse groove and extends to the inside of the slot, and the other end of the insertion rod is fixed with a handle.

[0010] Preferably, a circular plate is fixed on the outer surface of the insertion rod, the outer surface of the circular plate is slidably connected to the inner surface of the transverse groove, and a spring is sleeved on the outer surface of the insertion rod.

[0011] Preferably, one end of the spring is fixed to one side of the circular plate, and the other end of the spring is fixed to the inner wall of the transverse groove.

[0012] Beneficial Effects

[0013] The utility model provides a sewage pump with adjustable impeller clearance. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The sewage pump with adjustable impeller clearance realizes automatic adjustment of the distance between the impeller and the pump casing by setting a distance adjustment component, thereby reducing the gap between the two, so that the pump efficiency will not decrease even after the impeller is worn, and the pump runs more stably.

[0015] (2) The sewage pump with adjustable impeller clearance realizes the clamping installation of the pump body and the pump casing on the mounting seat by setting the clamping assembly. The rubber pad at the bottom of the mounting seat is set to reduce the vibration generated when the pump is working, thereby reducing the noise generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the drive shaft and impeller of the utility model;

[0018] Figure 3 It is a side view of the drive shaft and impeller of the utility model;

[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle A;

[0020] Figure 5 It is a cross-sectional view of the mounting seat and rubber pad of the utility model;

[0021] Figure 6 For this utility model Figure 5 A partial enlarged view of point B in the middle.

[0022] In the figure: 1. pump body; 2. pump casing; 3. drive shaft; 4. impeller; 5. liquid inlet; 6. liquid outlet; 7. distance adjustment assembly; 8. mounting seat; 9. rubber pad; 10. clamping assembly; 71. ring pad; 72. ring plate; 73. electric telescopic rod; 101. transverse groove; 102. slot; 103. plug rod; 104. handle; 105. round plate; 106. spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides two technical solutions: specifically including the following embodiments:

[0025] Example 1

[0026] See also Figure 1-Figure 4 A sewage pump with adjustable impeller clearance comprises a pump body 1, a pump casing 2 is arranged on one side of the pump body 1, a driving shaft 3 is arranged inside the pump body 1, an impeller 4 is movably connected to one end of the driving shaft 3, the impeller 4 is arranged inside the pump casing 2, a liquid inlet 5 is opened on one side of the pump casing 2, a liquid outlet 6 is arranged on the other side of the pump casing 2, and the distance between the impeller 4 and the inner wall of the pump casing 2 is adjusted by a distance adjustment component 7 on the driving shaft 3;

[0027] The distance adjustment component 7 includes an annular gasket 71 fixed on one side of the impeller 4, one end of the drive shaft 3 passes through the annular gasket 71 and the impeller 4 and extends to the outside of the impeller 4, an annular plate 72 is fixed on the outer surface of the drive shaft 3, and a plurality of electric telescopic rods 73 are fixed around one side of the annular plate 72, and the output ends of the plurality of electric telescopic rods 73 are fixed to one side of the annular gasket 71, and glue is filled between the inner surface of the annular gasket 71 and the impeller 4 and the outer surface of the drive shaft 3, and the glue can make the connection between the drive shaft 3 and the impeller 4 more firmly. When it is necessary to adjust the position of the impeller 4 on the drive shaft 3, the glue is heated and dried by a dryer, and then the electric telescopic rod 73 is started. After the position adjustment is completed, the glue is added and packaged.

[0028] By setting the distance adjustment component 7, the distance between the impeller 4 and the pump housing 2 can be automatically adjusted, thereby reducing the gap between the two, so that the pump efficiency will not decrease even after the impeller 4 is worn, and the pump operation is more stable.

[0029] Example 2

[0030] Based on Example 1, see Figure 5-Figure 6As shown, a mounting seat 8 is provided at the bottom of the pump body 1, and the bottom of the pump casing 2 passes through the mounting seat 8 and extends to the inside of the mounting seat 8. A rubber pad 9 is provided at the bottom of the mounting seat 8. The setting of the rubber pad 9 can provide a buffer between the mounting seat 8 and the table surface, effectively reducing the noise generated by the pump and the table surface when the pump vibrates, forming a buffer protection. A snap-on assembly 10 is provided between the mounting seat 8 and the pump casing 2, and the snap-on assembly 10 includes a transverse groove 101 opened inside the mounting seat 8, a slot 102 is opened on one side of the pump casing 2, and a plug rod 103 is slidably connected to one side of the mounting seat 8.

[0031] One end of the insertion rod 103 passes through one side of the mounting seat 8 and the transverse groove 101 and extends to the inside of the slot 102 , and the other end of the insertion rod 103 is fixed with a handle 104 .

[0032] A circular plate 105 is fixed to the outer surface of the insertion rod 103 . The outer surface of the circular plate 105 is slidably connected to the inner surface of the transverse groove 101 . A spring 106 is sleeved on the outer surface of the insertion rod 103 .

[0033] One end of the spring 106 is fixed to one side of the circular plate 105, and the other end of the spring 106 is fixed to the inner wall of the transverse groove 101. By setting the snap-fit ​​assembly 10, the pump body 1 and the pump housing 2 are snap-fitted and installed on the mounting seat 8. By setting the rubber pad 9 at the bottom of the mounting seat 8, the vibration generated when the pump is working is reduced, thereby reducing the generation of noise.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] During operation, the pump casing 2 is placed on the mounting seat 8, and the handle 104 is further pulled, so that the handle 104 drives the insertion rod 103 to move, and at the same time, the insertion rod 103 drives the circular plate 105 to squeeze the compression spring 106, so that the insertion rod 103 is further aligned with the slot 102, and the handle 104 is further released. The spring 106 in the compressed state is reset, and finally the insertion rod 103 is inserted into the slot 102, so that the installation between the pump casing 2 and the mounting seat 8 is realized, and the electric telescopic rod 73 is started, so that the electric telescopic rod 73 drives the ring gasket 71 and the impeller 4 to slide along the outer surface of the drive shaft 3, thereby realizing the adjustment of the distance of the impeller 4.

[0036] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A sewage pump with adjustable impeller clearance, comprising a pump body (1), characterized in that: A pump casing (2) is arranged on one side of the pump body (1), a driving shaft (3) is arranged inside the pump body (1), one end of the driving shaft (3) is movably connected to an impeller (4), the impeller (4) is arranged inside the pump casing (2), a liquid inlet (5) is provided on one side of the pump casing (2), a liquid outlet (6) is provided on the other side of the pump casing (2), and the distance between the impeller (4) and the inner wall of the pump casing (2) is adjusted by a distance adjustment component (7) on the driving shaft (3); The distance adjustment assembly (7) comprises an annular pad (71) fixed to one side of the impeller (4); one end of the drive shaft (3) passes through the annular pad (71) and the impeller (4) and extends to the outside of the impeller (4); an annular plate (72) is fixed to the outer surface of the drive shaft (3); a plurality of electric telescopic rods (73) are fixed around one side of the annular plate (72); and the output ends of the plurality of electric telescopic rods (73) are fixed to one side of the annular pad (71).

2. A sewage pump with adjustable impeller clearance according to claim 1, characterized in that: A mounting seat (8) is provided at the bottom of the pump body (1), the bottom of the pump housing (2) passes through the mounting seat (8) and extends to the inside of the mounting seat (8), and a rubber pad (9) is provided at the bottom of the mounting seat (8).

3. A sewage pump with adjustable impeller clearance according to claim 2, characterized in that: A snap-fit ​​assembly (10) is provided between the mounting seat (8) and the pump housing (2), the snap-fit ​​assembly (10) comprising a transverse groove (101) provided inside the mounting seat (8), a slot (102) provided on one side of the pump housing (2), and an insertion rod (103) slidably connected to one side of the mounting seat (8).

4. A sewage pump with adjustable impeller clearance according to claim 3, characterized in that: One end of the insertion rod (103) passes through one side of the mounting seat (8) and the transverse groove (101) and extends to the inside of the slot (102), and the other end of the insertion rod (103) is fixed with a handle (104).

5. A sewage pump with adjustable impeller clearance according to claim 3, characterized in that: A circular plate (105) is fixed on the outer surface of the insertion rod (103), the outer surface of the circular plate (105) is slidably connected to the inner surface of the transverse groove (101), and a spring (106) is sleeved on the outer surface of the insertion rod (103).

6. A sewage pump with adjustable impeller clearance according to claim 5, characterized in that: One end of the spring (106) is fixed to one side of the circular plate (105), and the other end of the spring (106) is fixed to the inner wall of the transverse groove (101).

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