Motor pump with convex gasket structure

Abstract

The utility model discloses a motor pump with a convex gasket structure. The motor pump comprises a motor, the pump body is located at one axial end of the motor, and a connected power shaft is arranged between the motor and the pump body; the gasket is located between the motor and the pump body, the front face and the back face of the gasket are in face contact with the motor and the pump body respectively, and a center hole is formed in the centroid of the gasket and allows the power shaft to penetrate through; wherein the gasket is provided with through holes, the motor is provided with internal threaded holes, the number of the internal threaded holes is integral multiple of the number of the through holes, and the internal threaded holes are used for selectively fixing the through holes; and in respective axial projections of the motor, the pump body and the gasket, the edge of the gasket is provided with a convex area which is not intersected with the projections of the motor and the pump body. The gasket has other functions except for sealing, has the capability of multi-angle selectable installation, and has the capability of protecting a pump body and a motor to a certain extent so as to prevent the pump body and the motor from being collided and damaged.

Description

Technical Field

[0001] The utility model relates to the field of motor pumps, and particularly to a motor pump with an externally convex gasket structure. Background Art

[0002] A motor pump, also known as an electric pump, is a pump driven by electricity. A motor pump converts electrical energy into mechanical energy and uses this mechanical energy to drive the impeller in the pump body to rotate, thereby realizing the liquid transportation device. The pump body and the motor are two independent components, and the performance during their sealed assembly has always been an issue to be considered in this field. Therefore, details often need to be improved at the junction of the pump body and the motor. For example, a gasket is usually provided at the junction of the pump body and the motor. Most gaskets have a single function, basically only the auxiliary sealing function. Content of the Utility Model

[0003] The problem to be solved by the utility model is to provide a motor pump with an externally convex gasket structure, enabling the gasket to undertake other functions besides sealing. First, it has the ability to be installed at multiple angles for selection. Second, it has the ability to protect the pump body and the motor to a certain extent from being knocked and damaged.

[0004] To solve the above problems, the utility model provides a motor pump with an externally convex gasket structure. To achieve the above purpose, the technical solution adopted by the utility model to solve its technical problems is:

[0005] A motor pump with an externally convex gasket structure includes: a motor; a pump body located at one axial end of the motor, with a connecting power shaft between the motor and the pump body; a gasket located between the motor and the pump body, with the front and back surfaces of the gasket being in surface contact with the motor and the pump body respectively. There is a central hole at the centroid of the gasket, and the central hole is for the power shaft to pass through. Among them, the gasket has through holes, and the motor has internal threaded holes. The number of internal threaded holes is an integer multiple of the number of through holes, and the internal threaded holes are for selective fixation of the through holes. In the axial projections of the motor, the pump body, and the gasket respectively, there is an externally convex area at the edge of the gasket that does not intersect with the projections of the motor and the pump body.

[0006] The beneficial effects of adopting the above technical solution are: The improvement mainly lies in the gasket. First, because the number of internal threaded holes is an integer multiple of the number of through holes, the gasket can be assembled at a specified angle of its own choice, that is, there is an included angle between different installation positions of the gasket. Second, the externally convex area is equivalent to a preset anti-collision part, avoiding direct damage to the relatively more expensive motor or pump body by external collisions, but at the cost of damaging the externally convex area. Even if the entire gasket is replaced later, the cost is not high. In addition, compared with the pump body and the motor, the gasket is relatively thin and can use its own collapse deformation to absorb energy to cope with collisions. This application endows the gasket with two new functions.

[0007] As a further improvement of the present utility model, the gasket is both a centrosymmetric figure and an axisymmetric figure.

[0008] As a further improvement of the present utility model, the number of through holes of the gasket is two, and the number of internal threaded holes is four. The two through holes are symmetrically distributed on both sides of the central hole, and the four internal threaded holes are arranged in a circular array around the axis of the motor.

[0009] The beneficial effect of adopting the above technical solution is that the gasket can have two optional installation angles.

[0010] As a further improvement of the present utility model, the part between the edge of the gasket and the central hole is the arc edge or the wing-shaped part of the gasket. The radial dimension of the arc edge is smaller than that of the wing-shaped part. The through hole is located in the wing-shaped part, and the end of the wing-shaped part far from the central hole is the convex area.

[0011] The beneficial effect of adopting the above technical solution is that the wing-shaped part has a relatively large radial dimension, and the deformation of the convex area will not directly affect the central hole.

[0012] As a further improvement of the present utility model, the outer contour of the gasket is spindle-shaped.

[0013] As a further improvement of the present utility model, the inner diameter of the central hole is larger than that of the through hole, and the inner diameter of the internal threaded hole is equal to that of the through hole.

[0014] The beneficial effect of adopting the above technical solution is that the central hole has a relatively large size because it is equivalent to a part of the cavity.

[0015] As a further improvement of the present utility model, the thickness of the gasket is not less than 2 mm. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is an assembly diagram of a relay, a connecting bar, and a bonding sheet of an implementation manner of the relay installation structure of the gear pump motor of the present utility model;

[0018] Figure 2 It is a perspective view of an implementation manner of the motor pump with an outer convex gasket structure of the present utility model;

[0019] Figure 3 It is a perspective view of an implementation manner of the motor pump with an outer convex gasket structure of the present utility model;

[0020] Figure 4 It is a partial enlarged view of part A of an embodiment of the motor pump with an outward convex gasket structure of the present utility model;

[0021] Figure 5 It is an assembly schematic diagram of the pump body and the gasket of an embodiment of the motor pump with an outward convex gasket structure of the present utility model;

[0022] Figure 6 It is an exploded view of the pump body and the gasket of an embodiment of the motor pump with an outward convex gasket structure of the present utility model.

[0023] 1 - Motor; 2 - Pump body; 21 - Internal thread hole; 22 - Radial platform; 23 - Internal groove; 3 - Relay; 4 - Gasket; 41 - Central hole; 42 - Through hole; 43 - Arc edge; 44 - Wing part; 441 - Outward convex area; 5 - Base; 51 - Circular hole; 52 - Notch hole; 6 - Connecting bar; 61 - Round hole; 62 - Waist-shaped hole; 63 - First straight section; 64 - Second straight section; 65 - Third straight section; 7 - Fitting piece; 71 - First notch hole; 72 - Second notch hole. Specific embodiments

[0024] The following combines specific embodiments to further elaborate on the content of the present utility model:

[0025] To achieve the purpose of the present utility model, as Figure 3 , Figure 4 shown, a motor pump with an outward convex gasket structure includes: a motor 1; a pump body 2 located at one axial end of the motor 1, and there is a connected power shaft between the motor 1 and the pump body 2; a gasket 4 located between the motor 1 and the pump body 2, with the front and back surfaces of the gasket 4 being in surface contact with the motor 1 and the pump body 2 respectively, and a central hole 41 being provided at the centroid of the gasket 4 for the power shaft to pass through; wherein, the gasket 4 has through holes 42, the motor 1 has internal thread holes 11, the number of the internal thread holes 11 is an integer multiple of the number of the through holes 42, and the internal thread holes 11 are used for selectively fixing the through holes 42; in the axial projections of the motor 1, the pump body 2, and the gasket 4 respectively, there is an outward convex area 441 at the edge of the gasket 4 that does not intersect with the projections of the motor 1 and the pump body 2.

[0026] The beneficial effects of adopting the above technical solution are as follows: The improvement mainly lies in the gasket. First, since the number of internal threaded holes is an integer multiple of the number of through holes, the gasket can be assembled at a specified angle of its own choice, that is, there is an included angle between different installation positions of the gasket. Second, the outward convex region is equivalent to a preset anti-collision part, which avoids directly damaging the relatively more expensive motor or pump body by external collision, but at the cost of damaging the outward convex region. Even if the entire gasket is replaced later, the cost is not high. In addition, compared with the pump body and the motor, the gasket is relatively thin and can use its own crush deformation to absorb energy to cope with collisions. This application endows the gasket with two new functions.

[0027] In some other embodiments of the present utility model, the gasket 4 is both a centrosymmetric figure and an axisymmetric figure.

[0028] In some other embodiments of the present utility model, the number of through holes of the gasket 4 is two, and the number of internal threaded holes 11 is four. The two through holes 42 are symmetrically distributed on both sides of the central hole 41, and the four internal threaded holes 42 are arranged in an annular array around the axis of the motor 1.

[0029] As Figure 6 shown, the motor has a radially outward convex radial platform 12, and an inner groove 13 is formed between the connected radial platforms 12. The internal threaded hole 11 is located in the radial platform 12.

[0030] The beneficial effects of adopting the above technical solution are as follows: The gasket can have two optional installation angles.

[0031] In some other embodiments of the present utility model, the edge of the gasket 4 to the central hole 41 is the arc edge 43 or the wing-shaped part 44 of the gasket 4. The radial dimension of the arc edge 43 is smaller than the radial dimension of the wing-shaped part 44. The through hole 42 is located in the wing-shaped part 44, and one end of the wing-shaped part 44 far from the central hole 41 is the outward convex region 441.

[0032] The beneficial effects of adopting the above technical solution are as follows: The wing-shaped part has a relatively large radial dimension, and the deformation of the outward convex region will not directly affect the central hole.

[0033] In some other embodiments of the present utility model, the outer contour of the gasket 4 is spindle-shaped.

[0034] In some other embodiments of the present utility model, the inner diameter of the central hole 41 is larger than the inner diameter of the through hole 42, and the inner diameter of the internal threaded hole 11 is equal to the inner diameter of the through hole 42.

[0035] The beneficial effects of adopting the above technical solution are as follows: The size of the central hole is relatively large because it is equivalent to a part of the cavity.

[0036] In some other embodiments of the present utility model, the thickness of the gasket 4 is not less than 2 mm.

[0037] AsFigures 1 to 3 As shown in the figure, a relay installation structure for a gear pump motor includes: a fitting piece 7 that can be fixed to the relay 3, one side of the fitting piece 7 can be attached to the outer wall of the motor 1, and several notch holes are provided at the edge of the fitting piece 7, and the notch directions of the notch holes are at an angle to each other; a connecting strip 6 that can electrically connect the relay 3 and the motor 1. Circular holes 61 and waist-shaped holes 62 are respectively provided at both ends of the connecting strip 6, and the circular holes 61 and the waist-shaped holes 62 are respectively assembled with the relay 3 and the motor 1, and the length direction of the waist-shaped hole 62 is perpendicular to the axis direction of the motor 1.

[0038] The beneficial effects of adopting the above technical solution are as follows: The fitting piece provides sufficient fixing positions between the relay and the motor, which is a physical connection. First, the notch holes can allow fasteners such as bolts to pass through. Since the opening directions of the notch holes are different, it is convenient for the fasteners to enter and exit from this opening direction, improving the disassembly, installation and adjustment efficiency. Also, because the opening directions of the notch holes are different, it is not easy to directly loosen from a certain direction. Secondly, the connecting strip plays an electrical connection, that is, a signal connection. Considering that the relay is more likely to have circumferential displacement looseness rather than axial displacement looseness after being fixed to the motor, the waist-shaped hole is specially designed to cope with this alignment error.

[0039] In some other embodiments of the present invention, the notch holes include a first notch hole 71 and a second notch hole 72. The notch directions of the first notch hole 72 and the second notch hole 72 are at a right angle to each other, and the first notch hole 71 and the second notch hole 72 are respectively located on both sides of the connection between the fitting piece 7 and the relay 3.

[0040] In some other embodiments of the present invention, the first notch hole 71 and the second notch hole 72 have the same width, the first notch hole 71 and the second notch hole 72 have the same depth, and the width of the first notch hole 71 is less than its own depth.

[0041] The beneficial effects of adopting the above technical solution are as follows: The notch holes have the same specifications, which can firmly semi-wrap and limit the fasteners such as bolts in the circumferential direction.

[0042] In some other embodiments of the present invention, the connecting strip 6 includes a first straight section 61, a second straight section 62, and a third straight section 63 that are integrally connected in sequence. The circular hole 61 is located in the first straight section 63, and the waist-shaped hole 62 is located in the third straight section 63; the junction of the first straight section 61 and the second straight section 62 is a right-angle bend, the plane where the first straight section 63 is located is perpendicular to the axis of the motor 1, and the planes where the second straight section 62 and the third straight section 63 are located are parallel to the axis of the motor 1.

[0043] In some other embodiments of the present invention, the fitting piece 7 and the connecting strip 6 are metal plates with the same thickness.

[0044] The beneficial effects of adopting the above technical solution are as follows: Although they perform different functions, they can be obtained by punching and bending the same metal plate, which is convenient for controlling the material cost.

[0045] As Figure 2 shown, in some other embodiments of the present invention, a base 5 is further fixed to the outer wall of the motor 1. The base 5 is provided with a circular hole 51 and a notch hole 52.

[0046] The beneficial effects of adopting the above technical solution are as follows: The base facilitates the fixation of the motor to other parts, such as floor fixation.

[0047] In some other embodiments of the present invention, the number of circular holes 51 is several, the number of notch holes 52 is one, and the inner diameter of the circular hole 51 is equal to the width of the notch hole 52.

[0048] The beneficial effects of adopting the above technical solution are as follows: The notch hole and the notch hole are essentially the same. This design is also for the convenience of disassembling and assembling the base and for fine-tuning the position.

[0049] In some other embodiments of the present invention, the base 5 and the bonding piece 7 are respectively located on both sides of the motor 1.

[0050] The beneficial effects of adopting the above technical solution are as follows: To avoid interference between the two.

[0051] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A motor pump with an outwardly convex gasket structure, characterized in that Comprising: A motor; A pump body located at one axial end of the motor, with a connected power shaft between the motor and the pump body; A gasket located between the motor and the pump body, with the front and back surfaces of the gasket being in surface contact with the motor and the pump body respectively. The centroid of the gasket has a central hole through which the power shaft passes; Wherein, the gasket has through holes, the motor has internal threaded holes, and the number of internal threaded holes is an integer multiple of the number of through holes, and the internal threaded holes are used for selectively fixing the through holes; In the axial projections of the motor, the pump body, and the gasket respectively, there is an outer convex area at the edge of the gasket that does not intersect with the projections of the motor and the pump body.

2. The motor pump with an outwardly convex gasket structure according to claim 1, characterized in that: The gasket is both a centrosymmetric figure and an axisymmetric figure.

3. The motor pump with an outwardly convex gasket structure according to claim 1, characterized in that: The number of through holes of the gasket is two, and the number of internal threaded holes is four. The two through holes are symmetrically distributed on both sides of the central hole, and the four internal threaded holes are arranged in a circular array around the axis of the motor.

4. The motor pump with an externally convex gasket structure according to claim 1, characterized in that: The area between the edge of the gasket and the central hole is an arc edge or a wing-shaped part of the gasket. The radial dimension of the arc edge is smaller than that of the wing-shaped part. The through hole is located in the wing-shaped part, and the end of the wing-shaped part away from the central hole is the outer convex area.

5. The motor pump with an outwardly convex gasket structure according to claim 1, characterized in that: The outer contour of the gasket is spindle-shaped.

6. The motor pump with an outwardly convex gasket structure according to claim 1, characterized in that: The inner diameter of the central hole is larger than the inner diameter of the through hole, and the inner diameter of the internal threaded hole is equal to that of the through hole.

7. The motor pump with an outwardly convex gasket structure according to claim 1, characterized in that: The thickness of the gasket is not less than 2 mm.

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