Novel sealed centrifugal pump

Abstract

The utility model provides a novel sealing centrifugal pump, and belongs to the technical field of pump bodies. The problems that a gap exists between a motor rotating shaft and an impeller shell of a traditional centrifugal pump, the connection is not tight enough, liquid leakage is possibly caused, and the working efficiency and performance of the pump are affected are solved. The novel sealed centrifugal pump comprises a base and a motor arranged at the top of the base, a pump body is arranged at the front end of the motor, a water inlet and a water outlet are formed in the pump body, a pump shaft is arranged on the pump body, a motor shaft of the motor is connected with the pump shaft through a coupler, and an impeller used for accelerating rotation of liquid is arranged at the top end of the pump shaft. A packing box is arranged on one side of the pump body, a step groove is formed in the position, located on one side of the pump body, of the packing box, a sealing piece matched with the step groove is arranged in the step groove, a hole opening groove is formed in the step groove, symmetrical clamping plates are arranged in the hole opening groove, and the clamping plates are fixed to the hole opening groove through elastic blocks. The centrifugal pump has the advantage that the working efficiency and the performance of the centrifugal pump are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pump body technical field relates to a new centrifugal pump especially a new sealing centrifugal pump. BACKGROUND

[0002] The centrifugal pump is worked by the water centrifugal motion caused by the impeller rotation, before the water pump starts, the pump shell and the water suction pipe must be filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at high speed, the water is centrifugally moved, is thrown to the outer edge of the impeller, and is flowed into the water pump's water pressure pipe through the flow channel of the volute pump shell.

[0003] The connection between the motor rotating shaft and the impeller shell of the traditional centrifugal pump has a gap, the connection is not tight enough, which may cause liquid leakage, thereby affecting the working efficiency and performance of the pump. SUMMARY

[0004] The utility model discloses a new sealing centrifugal pump to solve the above problems in the prior art.

[0005] The utility model discloses a new sealing centrifugal pump, including base and the motor of setting at the top of base, its characterized in that, the motor front end part is provided with the pump body, and the pump body is provided with the water inlet and the water outlet, the pump body is provided with the pump shaft, the motor shaft is connected with the pump shaft through the shaft coupling, the pump shaft top is provided with the impeller for liquid rotation acceleration, the pump body one side is provided with the packing box, the packing box is located on the step groove on the pump body one side, the step groove is provided with the sealing element that cooperates with it, the step groove is seted up and is provided with the open groove, the open groove is provided with the symmetric clamping plate, the clamping plate is fixed on the open groove through the elastic block.

[0006] In the above-mentioned new sealing centrifugal pump, the clamping plate is provided with a clamping groove, the front end of the clamping plate is provided with an opening part, the sealing element is provided with a clamping block assembly, the clamping block assembly is provided with a fixed part matched with the opening part, the clamping block assembly is provided with a bracket, and the bracket is provided with a protruding block matched with the clamping groove at both ends.

[0007] In the above-mentioned new sealing centrifugal pump, the inner wall of the sealing element is provided with a sealing ring for abutting on the pump shaft, and the sealing element is in T-shaped structure.

[0008] In the above-mentioned new sealing centrifugal pump, the pump body has an inner cavity for storing liquid, and the water inlet and the water outlet are connected with the inner cavity.

[0009] Compared with the prior art, the sealed centrifugal pump has the sealing element arranged between the packing box and the pump body and sleeved on the pump shaft, reduces the gap between the pump body and the packing box and reduces the risk of liquid leakage, and improves the working efficiency and performance of the centrifugal pump. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a perspective view of the sealed centrifugal pump.

[0011] Figure 2 is a sectional view of the sealed centrifugal pump.

[0012] Figure 3 is a partial sectional view of the sealed centrifugal pump.

[0013] In the figure, 1 is a base, 2 is a motor, 3 is a pump body, 4 is an inlet, 5 is an outlet, 6 is a pump shaft, 7 is a motor shaft, 8 is a shaft coupling, 9 is an impeller, 10 is a packing box, 11 is a stepped groove, 12 is a sealing element, 13 is an opening groove, 14 is a clamping plate, 15 is an elastic block, 16 is a clamping groove, 17 is an opening part, 18 is a fixing part, 19 is a bracket, 20 is a protruding block, 21 is a sealing ring, and 22 is an inner cavity. DETAILED DESCRIPTION

[0014] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0015] As Figure 1 , Figure 2 , Figure 3 In the sealed centrifugal pump, the base 1 and the motor 2 arranged on the top of the base 1 are provided, the motor 2 is provided with the pump body 3 at the front end, the pump body 3 is provided with the inlet 4 and the outlet 5, the pump shaft 6 is arranged on the pump body 3, the motor shaft 7 of the motor 2 is connected with the pump shaft 6 through the shaft coupling 8, the pump shaft 6 is provided with the impeller 9 for liquid rotation acceleration at the top end, the packing box 10 is arranged on one side of the pump body 3, the stepped groove 11 is arranged on one side of the pump body 3, the sealing element 12 matched with the stepped groove 11 is arranged in the stepped groove 11, the opening groove 13 is arranged on the stepped groove 11, the clamping plates 14 are symmetrically arranged in the opening groove 13, the clamping plates 14 are fixed on the opening groove 13 through the elastic blocks 15, and the sealing element 12 matched with the stepped groove 11 is fixed through the clamping plates 14.

[0016] Further, the clamping plate 14 is provided with a clamping groove 16, and the front end of the clamping plate 14 is provided with an opening part 17; the sealing element 12 is provided with a clamping block assembly, the clamping block assembly is provided with a fixed part 18 which is matched with the opening part 17, and the clamping block assembly is provided with a support 19, and the support 19 is provided with a protruding block 20 which is matched with the clamping groove 16; and the support 19 is inserted into the clamping plate 14 so that the protruding block 20 is clamped in the clamping groove 16 to prevent the sealing element 12 from falling off.

[0017] Further, the inner wall of the sealing element 12 is provided with a sealing ring 21 which is used to abut against the pump shaft 6, so as to increase the connection between the sealing element 12 and the pump shaft 6 and reduce the gap; and the sealing element 12 is in a T-shaped structure.

[0018] Further, the pump body 3 is provided with an inner cavity 22 which is used to store liquid, and the water inlet 4 and the water outlet 5 are communicated with the inner cavity 22; and the pump shaft 6 is rotated to drive the impeller 9 to generate centrifugal force so that the water which is introduced into the water inlet 4 is moved out from the water outlet 5.

[0019] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0020] Although the terms such as base 1, motor 2, pump body 3, water inlet 4, water outlet 5, pump shaft 6, motor shaft 7, shaft coupling 8, impeller 9, stuffing box 10, stepped groove 11, sealing element 12, opening groove 13, clamping plate 14, elastic block 15, clamping groove 16, opening part 17, fixed part 18, support 19, protruding block 20, sealing ring 21, inner cavity 22, etc. are used more frequently herein, but the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any kind of additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A new type of sealed centrifugal pump comprising a base and a motor arranged on top of the base, characterized in that, The motor front end is provided with a pump body, and the pump body is provided with a water inlet and a water outlet; the pump body is provided with a pump shaft; the motor shaft is connected with the pump shaft through a shaft coupling; the top end of the pump shaft is provided with an impeller for liquid rotation acceleration; one side of the pump body is provided with a packing box; the packing box is provided with a stepped groove on one side of the pump body; the stepped groove is provided with a sealing element matched with the stepped groove; the stepped groove is provided with an opening groove; the opening groove is provided with symmetrical clamping plates; the clamping plates are fixed on the opening groove through elastic blocks.

2. A new type of sealed centrifugal pump according to claim 1, characterized in that, The clamping plates are provided with clamping grooves; the front end of the clamping plates is provided with an opening part; the sealing element is provided with a clamping block assembly; the clamping block assembly is provided with a fixed part matched with the opening part; the clamping block assembly is provided with a support; the support is provided with protrusions matched with the clamping grooves at both ends of the support.

3. A new type of sealed centrifugal pump according to claim 1, characterized in that, The inner wall of the sealing element is provided with a sealing ring for abutting against the pump shaft; the sealing element has a T-shaped structure.

4. A new type of sealed centrifugal pump according to claim 1, characterized in that, The pump body has an inner cavity for storing liquid; the water inlet and the water outlet are communicated with the inner cavity.

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