Flow guide shell convenient to maintain

Abstract

The utility model provides a flow guide shell convenient to maintain, and belongs to the technical field of flow guide shells. The problem of easy damage in the prior art is solved. The flow guide shell convenient to maintain comprises a flow guide shell body, a detachable lower end wall is arranged at the lower end of the flow guide shell body, a connecting column is arranged on the lower end wall, a connecting hole matched with the connecting column is formed in the flow guide shell body, a connecting device is arranged on the connecting column, and a movable space for installing the connecting device is formed in the connecting column. The connecting device is composed of a clamping block and a clamping spring, a clamping hole connected with the connecting hole is formed in the position, opposite to the clamping block, of the inner wall of the flow guide shell body, a replaceable abrasion-resistant sleeve is arranged on the inner wall of the flow guide shell body, and a plurality of limiting parts are arranged on the outer diameter of the abrasion-resistant sleeve. And a limiting groove matched with the limiting part is formed in the inner wall of the flow guide shell body. The utility model has the advantage of wear resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of a flow guide shell, and relates to a flow guide shell, in particular to a flow guide shell convenient for maintenance. Background Art

[0002] A submersible pump is an important device for pumping water from deep wells. When in use, the whole unit works submerged in water, extracting groundwater to the ground surface. It is used for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship ballasting, and can also be used for fountain landscapes. The flow guide shell of a submersible pump is a protective device for the blades of the submersible pump flow guide shell.

[0003] During the actual operation of a deep well pump, the well water often contains sediment, so the well water pumped into the pump also contains sediment. The sediment drives the water flow to continuously impact and rub against the flow guide shell as the impeller rotates. After the pump runs for a long time, the part of the flow guide shell that cooperates with the impeller is easily worn through, and even the flow guide shell may crack. After the flow guide shell is worn through, the working efficiency of the pump is affected. If the flow guide shell cracks, the entire pump cannot work properly and fails. Moreover, the housing of the existing flow guide shell and its end wall are integrally arranged, and the annular holes on the end wall are easily damaged after long-term use, affecting the working efficiency of the pump and causing the entire flow guide shell to be unusable and need to be replaced. Summary of the Invention

[0004] The purpose of the utility model is to provide a flow guide shell convenient for maintenance for the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A flow guide shell convenient for maintenance, including a flow guide shell housing, characterized in that a detachable lower end wall is provided at the lower end of the flow guide shell housing, a connecting column is provided on the lower end wall, a connecting hole matching with the connecting column is opened on the flow guide shell housing, a connecting device is provided on the connecting column, an activity space for installing the connecting device is opened on the connecting column, the connecting device is composed of a clamping block and a clamping spring, a clamping hole connected to the connecting hole is opened on the inner wall of the flow guide shell housing relative to the clamping block, a replaceable wear-resistant sleeve is provided on the inner wall of the flow guide shell housing, a plurality of limiting parts are provided on the outer diameter of the wear-resistant sleeve, and a limiting groove matching with the limiting parts is opened on the inner wall of the flow guide shell housing.

[0006] In the above flow guide shell convenient for maintenance, a pump core hole is opened on the lower end wall, and a convex wall is provided on the lower end wall relative to the pump core hole.

[0007] Compared with the prior art, the detachable lower end wall provided by the utility model can be replaced after the pump core hole is worn, reducing the maintenance cost. Moreover, the connection device makes the maintenance and replacement more convenient. The wear-resistant sleeve provided can reduce the damage of impurities to the housing of the diversion shell under long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a three-dimensional structural schematic diagram of the utility model.

[0009] Figure 2 is a cross-sectional structural schematic diagram of the utility model.

[0010] Figure 3 is a partial enlarged schematic structural diagram at position A of the utility model.

[0011] In the figure, 1. housing of the diversion shell; 2. lower end wall; 3. connecting column; 4. connecting hole; 5. connecting device; 6. activity space; 7. clamping block; 8. clamping spring; 9. clamping hole; 10. wear-resistant sleeve; 11. limiting part; 12. limiting groove; 13. pump core hole; 14. convex wall. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The following are specific embodiments of the utility model in combination with the drawings to further describe the technical solutions of the utility model, but the utility model is not limited to these embodiments.

[0013] As Figure 1 、 Figure 2 、 Figure 3 shown, the diversion shell convenient for maintenance includes a housing of the diversion shell. A detachable lower end wall 2 is provided at the lower end of the housing 1 of the diversion shell. A connecting column 3 is provided on the lower end wall 2. A connecting hole 4 matching with the connecting column 3 is opened on the housing 1 of the diversion shell. A connecting device 5 is provided on the connecting column 3. An activity space 6 for installing the connecting device 5 is opened on the connecting column 3. The connecting device 5 is composed of a clamping block 7 and a clamping spring 8. A clamping hole 9 connected to the connecting hole 4 is opened on the inner wall of the housing 1 of the diversion shell relative to the clamping block 7. A replaceable wear-resistant sleeve 10 is provided on the inner wall of the housing 1 of the diversion shell. The provided wear-resistant sleeve 10 can reduce the damage of impurities to the housing 1 of the diversion shell under long-term use. A plurality of limiting parts 11 are provided on the outer diameter of the wear-resistant sleeve 10. A limiting groove 12 matching with the limiting part 11 is opened on the inner wall of the housing 1 of the diversion shell.

[0014] In further detail, a pump core hole 13 is opened on the lower end wall 2. A convex wall 14 is provided on the lower end wall 2 relative to the pump core hole 13, so that the water passing through the pump core hole 13 is more concentrated, and the overall structural strength can be improved, and deformation will not occur at the pump core hole 13.

[0015] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0016] Although terms such as diversion shell housing 1, lower end wall 2, connecting column 3, connecting hole 4, connecting device 5, activity space 6, clamping block 7, clamping spring 8, clamping hole 9, wear-resistant sleeve 10, limiting portion 11, limiting groove 12, pump core hole 13, convex wall 14, etc. are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for more conveniently describing and explaining the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A guide shell that is easy to maintain, comprising a guide shell shell (1), characterized in that: The lower end of the deflector shell (1) is provided with a detachable lower end wall (2), the lower end wall (2) is provided with a connecting column (3), the deflector shell (1) is provided with a connecting hole (4) matching with the connecting column (3), the connecting column (3) is provided with a connecting device (5), the connecting column (3) is provided with a movable space (6) for installing the connecting device (5), the connecting device (5) is composed of a clamping block (7) and a clamping spring (8), the inner wall of the deflector shell (1) is provided with a clamping hole (9) connected to the connecting hole (4) at a position opposite to the clamping block (7), the inner wall of the deflector shell (1) is provided with a replaceable wear-resistant sleeve (10), the outer diameter of the wear-resistant sleeve (10) is provided with a plurality of limiting portions (11), and the inner wall of the deflector shell (1) is provided with a limiting groove (12) matching with the limiting portion (11).

2. The easy-to-maintain guide shell according to claim 1, characterized in that: A pump core hole (13) is provided on the lower end wall (2), and a convex wall (14) is provided on the lower end wall (2) opposite to the pump core hole (13).

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