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CN-224228953-U - Pump cover assembly and water pump

CN224228953UCN 224228953 UCN224228953 UCN 224228953UCN-224228953-U

Abstract

The utility model provides a pump cover subassembly and water pump, this pump cover subassembly includes pump cover and filter, the inner wall of pump cover is equipped with annular baffle with its hollow inner chamber separate into with the first chamber of holding of water inlet intercommunication and with the second of delivery port intercommunication hold the chamber, the radial inner wall that the first chamber of holding of pump cover was equipped with the mounting groove of symmetry, the upper end between this symmetrical mounting groove is equipped with the guide surface, the baffle is equipped with first baffle through-hole, be equipped with the first bottom plate through-hole of symmetry on the bottom plate of filter, this first bottom plate through-hole need not to align can self-adaptation insert in the mounting groove and realize first baffle through-hole and first bottom plate through-hole intercommunication. Through the pump cover assembly and the water pump of above-mentioned design, its assembly is simple and to make an active effect of making an uproar falls.

Inventors

  • Lan Jianan
  • LIAO YONG

Assignees

  • 江门市甜的电器有限公司

Dates

Publication Date
20260512
Application Date
20250729

Claims (9)

  1. 1. The pump cover assembly comprises a pump cover (100) with a water inlet (110) and a water outlet (120) and a filter (200) arranged on the pump cover, wherein an annular baffle plate (130) is arranged on the inner wall of the pump cover (100) to divide a hollow inner cavity of the pump cover into a first accommodating cavity (11) communicated with the water inlet (110) and a second accommodating cavity (12) communicated with the water outlet (120), the filter (200) is arranged in the first accommodating cavity (11), the pump cover assembly comprises a bracket (210) and a bottom plate (220) arranged at the bottom end of the bracket, the bracket (210) comprises a connecting arm (211) extending axially, a guide block (212) is arranged on the radial protrusion of the connecting arm (211), and is characterized in that symmetrical mounting grooves (140) are arranged on the radial inner wall of the first accommodating cavity (11) of the pump cover (100), guide surfaces (150) are arranged at the upper ends between the symmetrical mounting grooves (140), first baffle plate through holes (131) are arranged on the bottom plate (220), symmetrical first bottom plate through holes (221) are arranged on the bottom plate (220), the axial projection is a line L, which is adjacent to the axial projection of the first baffle plate through holes (131) and the two projection ends (1) are connected with the projection through holes (1) respectively, the connecting line between the central point of the guide block (212) and the axis of the filter (200) is K1, the connecting line between the central point of the first bottom plate through hole (221) adjacent to the guide block (212) and the axis of the filter (200) is K2, the included angle values of the connecting lines L1 and L2 and the included angle values of the connecting lines L1 and L3 are a and b respectively, the included angle value of the connecting lines K1 and K2 is c, the points of intersection of the radial S which starts from the axis of the pump cover and passes through the central point of the first baffle through hole and the first baffle through hole (131) in sequence are S1 and S2, the distances from the axis of the pump cover to the intersection points S1 and S2 are D1 and D2 respectively, and the distances from the axis of the filter (200) to the central point of the first bottom plate through hole (221) are D3, so that a is not less than c not less than b, and D1 not less than D2 are satisfied.
  2. 2. A pump cover assembly according to claim 1, wherein the guide surface (150) is formed in a mountain shape gradually rising and gradually lowering in the circumferential direction from one end.
  3. 3. A pump cover assembly according to claim 2, wherein the guide surface (150) comprises a first inclined plane (151) and a second inclined plane (152) which are radially projected as inclined lines, and an included angle alpha formed by intersecting the first inclined plane (151) and the second inclined plane (152) is an obtuse angle.
  4. 4. A pump cap assembly according to claim 3, wherein the first inclined plane (151) and the second inclined plane (152) are symmetrically disposed.
  5. 5. A pump cap assembly according to claim 3 or 4, wherein the first inclined plane (151) and the second inclined plane (152) are connected by an arcuate transition surface (153).
  6. 6. A pump cap assembly according to claim 1, wherein in an axial projection, the plane passing through the axis of the water inlet (110) and perpendicular to the baffle (130) divides the contour of the baffle (130) into a region T1 close to the water outlet (120) and a region T2 distant from the water outlet (120), and the first baffle through hole (131) is located in the region T2 distant from the water outlet (120).
  7. 7. A pump cap assembly according to claim 6, wherein in an axial projection, the projection of the axis through the water outlet (120) intersects the contour of the projection of the first floor through hole (221).
  8. 8. A pump cover assembly according to claim 6 or 7, wherein the baffle plate (130) is further provided with a second baffle through hole (132) and a third baffle through hole (133) on both circumferential sides of the first baffle through hole (131), the bottom plate is further provided with a pair of second bottom plate through holes (222) and third bottom plate through holes (223) on both circumferential sides of the first bottom plate through hole (221), and in an axial projection of the pump housing assembly, a contour of one of the second bottom plate through holes (222) is at least partially overlapped with a contour of the second baffle through hole (132), and a contour of one of the third bottom plate through holes (223) is at least partially overlapped with a contour of the third baffle through hole (133).
  9. 9. A water pump comprises a stator assembly (20), a pump body (30) fixed on the stator assembly, a rotor rotatably mounted on the pump body and an impeller (40) mounted on one axial side of the rotor, and is characterized by further comprising the pump cover assembly according to any one of claims 1 to 8, wherein the pump cover assembly is mounted on the pump body (30) and enables the impeller (40) to be accommodated in a second accommodating cavity.

Description

Pump cover assembly and water pump Technical Field The utility model relates to a pump cover assembly and a water pump using the same, and belongs to F04D29/70 in IPC classification. Background The existing centrifugal pump with a filter, as shown in the prior patent application No. CN215333465U, with the patent name of a filter and a centrifugal pump, comprises a pump shell and the filter arranged on the pump shell, wherein the pump shell is respectively provided with a water inlet pipe and a water outlet pipe which are communicated with a filter cavity and an impeller cavity, and the filter is arranged in the filter cavity and is provided with a noise reduction through hole towards an end plate of the impeller cavity. During installation, the noise reduction through hole and the structure on the pump shell can be arranged in a matched mode only by adjusting the assembly angle of the filter. The current pump assembly is time consuming and has a high probability of being misplaced, and there is a need for improvement. Disclosure of utility model In order to solve the problems, the utility model provides the following technical scheme: The utility model provides a pump cover subassembly, including the pump cover that has water inlet and delivery port and install the filter on the pump cover, the inner wall of pump cover is equipped with annular baffle and separates its hollow inner chamber into with the first chamber of holding of water inlet intercommunication and the second chamber of holding of delivery port intercommunication, the filter is installed in first chamber of holding, including the support with locate the bottom plate of support bottom, the support includes the linking arm of axial extension, the radial arch of linking arm has the guide block, its characterized in that: the radial inner wall of the first accommodating cavity of the pump cover is provided with symmetrical mounting grooves, the upper ends between the symmetrical mounting grooves are provided with guide surfaces, the baffle is provided with first baffle through holes, the bottom plate is provided with symmetrical first bottom plate through holes, in axial projection, the connecting lines of the axes of the pump cover and the middle point of the projection of the mounting grooves close to the first baffle through holes are L1, the connecting lines of the two circumferential ends of the first baffle through holes and the axes of the pump cover are L2 and L3 respectively, the connecting lines of the central point of the guide block and the axes of the filter are K1, the connecting lines of the central point of the first bottom plate through holes adjacent to the guide block and the axes of the filter are K2, the included angle values of the connecting lines L1 and L2 and L1 are a and b respectively, the included angle values of the connecting lines K1 and K2 are c, the points of the radial S from the axes of the pump cover and the central point of the first baffle through holes crossing with the first baffle through holes are S1 and S2 in sequence, the distances between the axes of the cover and the intersecting points S1 and S2 are D1 and D2 respectively, the distances between the axes of the filter and the axes of the pump cover and the axes of the filter and the first baffle through holes and the central point of the filter are D1 and D2, and D2 is less than or equal to 3. According to the pump cover assembly, the guide surface is arranged on the hollow inner cavity of the pump cover, and the positions of the first baffle through hole and the first bottom plate through hole are optimally designed, so that the filter can be adaptively inserted into the mounting groove without alignment, and at least partial overlapping of axial projections of the first baffle through hole and the first bottom plate through hole is realized, and the pump cover assembly is convenient to assemble and simultaneously reduces noise of equipment applying the pump cover assembly. Further, the guide surface is formed in a mountain slope shape gradually rising from one end and gradually lowering from the other end in the circumferential direction. Further, the guide surface comprises a first inclined plane and a second inclined plane which are projected in the radial direction to form an inclined line, and an included angle alpha formed by the intersection of the first inclined plane and the second inclined plane is an obtuse angle. Further, the first inclined plane and the second inclined plane are symmetrically arranged. Further, the first inclined plane and the second inclined plane are connected through an arc-shaped transition surface. Further, in the axial projection, a plane passing through the axis of the water inlet and perpendicular to the baffle divides the contour of the baffle into a region T1 close to the water outlet and a region T2 far from the water outlet, and the first baffle through hole is located in the region T2 far from the water out