Water pump with damping function

Abstract

The water pump with the damping function comprises a pump shell, a pump shaft is arranged in the middle of the pump shell in a penetrating mode, one end of the pump shaft is fixedly connected with a pump blade, the pump blade comprises a fixing base, a hole groove is formed in the side wall of the fixing base, and a fixing sleeve is fixedly connected into the hole groove; an S-shaped elastic piece is arranged in the fixing sleeve, the edge of the end of the elastic piece is fixedly connected with the inner wall of the fixing sleeve, a rotating shaft is upwards arranged at the bottom of the fixing sleeve in a penetrating and inserting mode, the rotating shaft is fixedly connected with the middle of the elastic piece, and paddles are fixedly connected to the end of the rotating shaft. According to the water pump, the blades can rotate, and the stability of water pump operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water pumps, and in particular to a water pump with a shock absorbing function. Background Art

[0002] A water pump is a machine that transports liquid or pressurizes liquid. In mechanical design, it is usually necessary to suppress the vibration of the mechanical structure, and water pumps are no exception. However, there are many factors that cause vibration in water pumps, such as the manufacturing quality and power supply of the motor, the connection between the motor shaft and the pump shaft, whether the support of the water pump and the connection between various parts are loose, as well as the manufacturing of the pump blades and the radial distance from the pump blades to the inner wall of the pump casing.

[0003] In existing water pumps, the pump casing has a spiral shape, that is, the outer shell contour of the water pump is similar to a snail shell, so that when the pump blades are in different positions, the radial distance between the pump blades and the pump casing is different, so that the force on the pump blades at each position is also different. During the rotation of the pump blades, there is a problem of dynamic balance causing vibration. Summary of the invention

[0004] To solve the above problems, the present invention discloses a water pump with a shock absorbing function, comprising a pump housing, a pump shaft is inserted in the middle of the pump housing, and a pump blade is fixedly connected to one end of the pump shaft. The pump blade can be rotated by driving the pump shaft, thereby pumping water.

[0005] The pump blade includes a fixing seat, the side wall of the fixing seat is provided with a hole groove, and a fixing sleeve is fixedly connected in the hole groove, an "S"-shaped elastic member is arranged inside the fixing sleeve, and the end edge of the elastic member is fixedly connected to the inner wall of the fixing sleeve, a rotating shaft is inserted upwardly through the bottom of the fixing sleeve, the rotating shaft is fixedly connected to the middle part of the elastic member, and a blade is fixedly connected to the end of the rotating shaft. During the operation, each blade receives different forces, so that the dynamic balance of the pump blade is no longer balanced, and elastic members, rotating shafts and other components are arranged here to make the blade rotate, thereby changing the force on the blade, and the elastic members are arranged so that the blade is subjected to forces of different sizes to control the size of the blade angle.

[0006] Preferably, a fixing plate is fixedly connected to one side of the pump housing, a shaft bracket is fixedly connected to the fixing plate, and the pump shaft passes through the fixing plate and the shaft bracket. Both the fixing plate and the shaft bracket are used to support the pump shaft.

[0007] Preferably, the shaft shoulders on both sides of the pump shaft are provided with bearings, and the two bearings are respectively matched on the fixed plate and the shaft bracket to realize the rotational connection between the pump shaft and the fixed plate and the shaft bracket.

[0008] Preferably, a sealing ring is sleeved on the pump shaft, a retaining ring is threadedly connected to the fixing plate, and the retaining ring abuts against one side of the sealing ring, and the retaining ring is located inside the pump housing, so as to ensure the axial sealing of the pump shaft.

[0009] Preferably, a base is provided below the pump housing, and rubber blocks are fixedly connected to both sides of the lower end of the base to provide support for the pump housing, while the rubber blocks play a role in supporting and damping.

[0010] Preferably, a plurality of second bolts are inserted through the bottom of the fixing sleeve, and the second bolts are threadedly connected to the fixing seat. The fixing sleeve is fixedly connected in the hole groove by the second bolts.

[0011] Preferably, a cover plate is provided on the hole groove, and the rotating shaft passes through the middle of the cover plate, a sealing gasket is provided on the side wall of the cover plate, and the surface of the cover plate and the side wall surface of the fixing seat are smoothly transitioned, thereby improving the aesthetics of the pump blade and the fluid dynamics effect of the pump blade.

[0012] Preferably, a first bolt is inserted into the front end of the fixing seat, and the first bolt is threadedly connected to the pump shaft, and a blocking cover is buckled at the front end of the fixing seat, and the blocking cover covers the first bolt. This also improves the aesthetics of the pump blades and is used to protect the first bolt from being damaged by running water. Further, a sealing gasket is provided between the blocking cover and the fixing seat.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The blade is rotatably arranged on a fixed seat and is provided with an elastic member. When the blade is subjected to force, it can rotate and change the blade angle. Under the action of the elastic member, the blade angle changes dynamically, so the operation of the water pump can be kept stable.

[0015] 2. A base and rubber pad are provided to improve the stability of the support and reduce vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention from a side perspective;

[0017] Figure 2 It is a three-dimensional schematic diagram of another side viewing angle of the present invention;

[0018] Figure 3 It is a cross-sectional schematic diagram of the present invention;

[0019] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0020] Figure 5 It is a schematic diagram of the explosion of the pump blade of the present invention.

[0021] List of reference numerals:

[0022] 1. Pump shaft; 2. Shaft bracket; 3. Base; 4. Pump casing; 5. Fixing plate; 6. Rubber block; 7. Pump blade; 8. Bearing; 9. Retaining ring; 10. Sealing ring;

[0023] 71. blocking cover; 72. first bolt; 73. fixing seat; 74. rotating shaft; 75. fixing sleeve; 76. elastic member; 77. second bolt; 78. cover plate; 79. paddle. DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Combination Figure 1 and Figure 2 As shown, a water pump with a shock absorbing function includes a pump housing 4. The pump housing 4 is a common structure of an existing mixed flow pump and will not be described in detail here. A pump shaft 1 is inserted in the middle of the pump housing 4, and one end of the pump shaft 1 is fixedly connected to a pump blade 7. Both ends of the pump shaft 1 are provided with a flat keyway, and the pump blade 7 is also connected by a flat key. As the pump shaft 1 rotates, the other end of the pump shaft 1 is also connected to a pulley or a coupling by a flat key.

[0026] like Figure 5 As shown, the pump blade 7 includes a fixed seat 73, which is a rotating body, and is small in front and large in the back, and has a side wall of an arc surface structure. The side wall of the fixed seat 73 is provided with a hole groove, and a plurality of hole grooves are provided, and a fixed sleeve 75 is fixedly connected in the hole groove. The shape of the fixed sleeve 75 is similar to that of an engine piston. An "S"-shaped elastic member 76 is provided inside the fixed sleeve 75, and the end edge of the elastic member 76 is fixedly connected to the inner wall of the fixed sleeve 75. The elastic member 76 is a sheet member formed by bending. A rotating shaft 74 is inserted upwardly at the bottom of the fixed sleeve 75, and the lower end of the rotating shaft 74 is fixed. A circular plate is fixedly connected, and a circular groove is provided in the middle of the lower end of the fixing sleeve 75, and the circular plate fits in the circular groove. Since the fixing sleeve 75 is fixedly connected to the fixing seat 73, this structure limits the axial movement of the rotating shaft 74. The middle part of the rotating shaft 74 and the elastic member 76 are fixedly connected. Here, an opening is provided in the middle of the rotating shaft 74, and the elastic member 76 is inserted in the opening. The end of the rotating shaft 74 is fixedly connected with a paddle 79, and a connecting pipe is provided at one end of the paddle 79. One end of the rotating shaft 74 is inserted into the connecting pipe, and the side wall of the connecting pipe is threadedly connected and resists the screw of the rotating shaft 74.

[0027] Furthermore, during the operation of the pump blade 7, the problem of different forces on each blade 79 will occur. Specifically, the outer shape of the pump housing 4 is spiral, so that the distances between the blades and the inner wall of the pump housing 4 are different. At the same time, the pump body 4 is also provided with a water outlet, so that the flow rate and flow direction of the water inside the pump body are different, resulting in different forces on each blade 79, thereby causing vibration of the pump blade 7. In this solution, a rotatable blade 79 is provided, that is, the blade angle of the blade 79 can be changed, and the water pump involved in this solution is in the form of a mixed flow pump, and the pump blade 7 will be If the force on blade 79 is too large, especially the axial force, blade 79 may be forced to rotate, and elastic member 76 is deformed toward a straightened state due to the rotation of shaft 74, storing elastic potential energy, and the blade angle of blade 79 is reduced, so that the force on blade 79 is reduced. If the force on blade 79 is reduced, elastic member 76 releases elastic potential energy, so that blade 79 is reset. Therefore, during the operation of the water pump, the blade angle of blade 79 is in dynamic adjustment. This design structure improves the stability of blade 79.

[0028] Combination Figure 1 and Figure 3 As shown, a fixing plate 5 is fixedly connected to one side of the pump housing 4, a plurality of bolts are inserted through the edge of the fixing plate 5, and the bolts are threadedly connected to the pump housing 4, and a sealing gasket is provided between the fixing plate 5 and the pump housing 4, a shaft bracket 2 is fixedly connected to the fixing plate 5, the main structure of the shaft bracket 2 is conical, and a plurality of bolts are inserted through the end edge of the shaft bracket 2, and the bolts are threadedly connected to the fixing plate 5, the pump shaft 1 passes through the fixing plate 5 and the shaft bracket 2, and a pipe structure is further provided in the middle of the fixing plate 5, and the pump shaft 1 passes through the pipe structure.

[0029] The shaft shoulders on both sides of the pump shaft 1 are provided with bearings 8 , and the two bearings 8 are respectively matched on the fixing plate 5 and the shaft bracket 2 , so as to realize the positioning and rotation connection of the pump shaft 1 .

[0030] like Figure 4 As shown, a sealing ring 10 is sleeved on the pump shaft 1, and a retaining ring 9 is threadedly connected to the fixing plate 5, that is, the side wall of the retaining ring 9 is provided with a thread, and the retaining ring 9 is against one side of the sealing ring 10, and the retaining ring 9 is located inside the pump housing 4 to achieve sealing of the axial clearance of the pump shaft 1. Furthermore, a sealing member is provided on one side of the bearing 8 on the fixing plate 5 to improve the sealing performance of the water pump.

[0031] Combination Figure 1 and Figure 2As shown, a base 3 is provided below the pump housing 4, and the base 3 includes a horizontal plate and a vertical plate. The lower part of the vertical plate is fixedly connected to the middle part of the horizontal plate, and the upper end of the vertical plate is fixedly connected to the side wall of the pump body 4. Further, a reinforcing rib plate can be provided between the lower part of the vertical plate and the horizontal plate. Rubber blocks 6 are fixedly connected to both sides of the lower end of the base 3 to provide a shock absorbing effect for the water pump support structure.

[0032] like Figure 5 As shown, a plurality of second bolts 77 are inserted through the bottom of the fixing sleeve 75 , and the second bolts 77 are threadedly connected to the fixing seat 73 . The second bolts 77 enable the fixing sleeve 75 to be fixed on the fixing seat 73 .

[0033] A cover plate 78 is provided to cover the hole groove, and the rotating shaft 74 passes through the middle of the cover plate 78 to improve the aesthetics of the pump blade 7. A sealing gasket is provided on the side wall of the cover plate 78 to prevent water from entering the inside of the hole groove, and the surface of the cover plate 78 and the side wall surface of the fixing seat 73 have a smooth transition.

[0034] A first bolt 72 is inserted into the front end of the fixing seat 73, and the first bolt 72 is threadedly connected to the pump shaft 1, that is, after the pump blade 7 is restricted in rotation by the flat key, its axial movement is also restricted by the first bolt 72. A blocking cover 71 is buckled at the front end of the fixing seat 73, and the blocking cover 71 covers the first bolt 72, thereby improving the aesthetics of the pump blade 7. At the same time, a sealing gasket is also arranged between the blocking cover 71 and the fixing seat 73.

[0035] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

Claims

1. A water pump with a shock absorbing function, characterized in that: It comprises a pump casing (4), a pump shaft (1) being inserted through the middle of the pump casing (4), and a pump blade (7) being fixedly connected to one end of the pump shaft (1); The pump blade (7) comprises a fixing seat (73), a side wall of the fixing seat (73) is provided with a hole groove, and a fixing sleeve (75) is fixedly connected in the hole groove, an "S"-shaped elastic member (76) is arranged inside the fixing sleeve (75), and the end edge of the elastic member (76) is fixedly connected to the inner wall of the fixing sleeve (75), a rotating shaft (74) is inserted upward through the bottom of the fixing sleeve (75), the rotating shaft (74) and the middle part of the elastic member (76) are fixedly connected, and a blade (79) is fixedly connected to the end of the rotating shaft (74).

2. A water pump with shock absorption function according to claim 1, characterized in that: A fixing plate (5) is fixedly connected to one side of the pump housing (4), a shaft support (2) is fixedly connected to the fixing plate (5), and the pump shaft (1) passes through the fixing plate (5) and the shaft support (2).

3. A water pump with shock absorption function according to claim 2, characterized in that: The shaft shoulders on both sides of the pump shaft (1) are provided with bearings (8), and the two bearings (8) are respectively matched on the fixing plate (5) and the shaft bracket (2).

4. A water pump with shock absorption function according to claim 2, characterized in that: A sealing ring (10) is sleeved on the pump shaft (1), a retaining ring (9) is threadedly connected to the fixing plate (5), and the retaining ring (9) abuts against one side of the sealing ring (10), and the retaining ring (9) is located inside the pump housing (4).

5. The water pump with shock absorption function according to claim 1, characterized in that: A base (3) is provided below the pump housing (4), and rubber blocks (6) are fixedly connected to both sides of the lower end of the base (3).

6. The water pump with shock absorption function according to claim 1, characterized in that: A plurality of second bolts (77) are inserted through the bottom of the fixing sleeve (75), and the second bolts (77) are threadedly connected to the fixing seat (73).

7. The water pump with shock absorption function according to claim 1, characterized in that: A cover plate (78) is provided on the hole groove, and the rotating shaft (74) passes through the middle of the cover plate (78). A sealing gasket is provided on the side wall of the cover plate (78), and the surface of the cover plate (78) and the side wall surface of the fixing seat (73) are smoothly transitioned.

8. The water pump with shock absorption function according to claim 1, characterized in that: A first bolt (72) is inserted into the front end of the fixing seat (73), and the first bolt (72) is threadedly connected to the pump shaft (1). A blocking cover (71) is buckled and arranged at the front end of the fixing seat (73), and the blocking cover (71) covers the first bolt (72).

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