CN219754789U - Pump case and use its drain pump - Google Patents

Abstract

The utility model discloses a water pump shell and a drainage pump using the same, comprising a shell with a cavity inside and a hook positioned on the outer surface of the shell, wherein the surface of the shell is provided with a water inlet and a water outlet which are communicated with the cavity; the hanger comprises a first clamping piece and a second clamping piece which enclose a channel structure, one ends of the first clamping piece and the second clamping piece are respectively connected with a shell to form a fixed end, the other ends of the first clamping piece and the second clamping piece are free ends, two free ends are provided with clamping hooks matched with each other, in a free state, the two clamping hooks form a bayonet through which a connecting wire passes, and when the hanger receives an outward acting force of the channel structure, the two clamping hooks can be mutually abutted to enable the bayonet to be closed. The hook for limiting the connecting wire adopts a two-piece structure, and the closable bayonet is formed by the cooperation of the free ends of the two clamping pieces, so that the connecting wire is prevented from sliding out of the hook when the connecting wire is tightened.

Description

Pump case and use its drain pump

Technical Field

The utility model relates to the technical field of motor design, in particular to a water pump shell and a drainage pump using the same.

Background

The drainage pump consists of a motor and a water pump shell component, and the water pump shell component consists of a water pump shell, an inner bracket, a sealing cover and a sealing gasket. The water pump shell delivery port is provided with the buckle that supplies the connecting wire to pass generally for inject the position of connecting wire, buckle among the prior art all is monolithic open-type structure, and the buckle has one slice promptly, and one side and the water pump shell of buckle are connected, and the opposite side is opened, and the connecting wire gets into the buckle from the opening, and specific technology is: the connecting wire is slid in from the opening of the buckle along the surface of the water pump shell, and is connected with an external power supply, then the overlong connecting wire is tightened, and the redundant connecting wire part is fixed by a binding belt. When the connecting wire is tightened, the connecting wire contacts with the upper end of the buckle or directly contacts with the opening position of the buckle, the opening is easy to be stressed and opened, so that the connecting wire slides out from the opening along the surface of the water pump shell, and the connecting wire cannot be fixed. Therefore, the connecting wire needs to be put into the opening again, so that the labor cost is increased, and the connecting wire still has a certain falling risk.

Therefore, it is necessary to develop a water pump housing with a better hooking structure to solve the problem of falling of the connecting line, thereby reducing the labor cost.

Disclosure of Invention

In order to solve the technical problems that in the drainage pump in the prior art, a buckle for limiting a connecting wire is of a single-piece and open structure, so that the opening is easy to open when the connecting wire is tightened, and the connecting wire is easy to slide out, the utility model provides a water pump shell and the drainage pump using the same to solve the problems.

The utility model provides a water pump shell, which comprises a shell with a cavity inside and a hook positioned on the outer surface of the shell, wherein the surface of the shell is provided with a water inlet and a water outlet which are communicated with the cavity; the hanger comprises a first clamping piece and a second clamping piece which enclose a channel structure, one ends of the first clamping piece and the second clamping piece are respectively connected with a shell to form a fixed end, the other ends of the first clamping piece and the second clamping piece are free ends, two free ends are provided with clamping hooks matched with each other, in a free state, the two clamping hooks form a bayonet through which a connecting wire passes, and when the hanger receives an outward acting force of the channel structure, the two clamping hooks can be mutually abutted to enable the bayonet to be closed.

Further, along the radial direction of the housing, one of the hooks is located radially inward of the other hook.

Further, the first clamping piece includes the first side edge, the section of bending and the first trip that connect gradually, the second clamping piece includes second side edge and second trip, first trip is located the radial inboard of second trip, first side edge and second side edge parallel arrangement just are connected with the casing respectively, the height along the first side is greater than the height along the second side.

Further, the first side edge and the second side edge are arranged along the axial direction of the shell.

Further, the first hook and the second hook are parallel to the axial direction of the shell, and the first side edge and the second side edge are perpendicular to the axial direction of the shell.

Further, the first inclined lacing wire is connected to one axial side of the first side edge and one axial side of the second side edge, which are located outside the channel structure, and the first inclined lacing wire is connected with the shell.

Further, along the through direction of the channel structure, the two sides of the first side edge and the second side edge are respectively provided with a second inclined lacing wire, and the second inclined lacing wire is connected with the shell.

Further, along the axial direction of the housing, the first side edge is located between the opening of the housing and the second side edge; the axial distance C4 between the first side edge and the opening of the shell is 30-40 mm.

Further, c4=35 mm.

Further, the height H1 of the first side edge and the height H3 of the second side edge satisfy the following conditions: h3/h1=1/2 to 2/3.

Further, the overlapping length C1 of the two hooks along the axial direction satisfies the following conditions: c1 is more than 0 and less than or equal to 1.5mm.

Further, the maximum width C3 of the first diagonal lacing wire and the height H1 of the first side edge satisfy the following conditions: c3/h1=1/5 to 1/4.

Further, the height H2 of the second diagonal tie and the height H1 of the first side edge 601 satisfy the following conditions: h2/h1=1/3 to 1/2; the height H2 of the second diagonal tie 12 and the height H3 of the second side edge 701 satisfy the following conditions: h2/h3=2/3 to 3/4.

Further, in the free state, the width C2 of the bayonet and the diameter D of the coupling line satisfy the following conditions: c2/d=1/3 to 1/2.

The utility model also provides a drainage pump which comprises the drainage pump shell.

The beneficial effects of the utility model are as follows:

(1) The hook for limiting the connecting wire adopts a two-piece structure, and the closable bayonet is formed by the cooperation of the free ends of the two clamping pieces, so that the connecting wire is prevented from sliding out of the hook when the connecting wire is tightened.

(2) According to the utility model, through the arrangement of the height difference between the first side edge and the second side edge, the bent part, the two clamping hooks and the second side edge form a barb structure, so that the hanging wire is convenient, and when the connecting wire is tightened, the bent part is stressed to be bent outwards, so that the first clamping hook is favorably attached to the second clamping hook, and the larger the stress is, the tighter the attaching is, and the structural reliability is good.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a front view of a water pump housing according to the present utility model;

FIG. 2 is a front view of the hanger of FIG. 1;

FIG. 3 is a dimensioning of the hook;

FIG. 4 is a schematic dimensional view of a coupling line;

FIG. 5 is a perspective view of the bayonet of the present utility model with the bayonet of the hanger in a closed position (the direction indicated by the arrow is the direction of force);

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 7 is an enlarged view at a in FIG. 6;

FIG. 8 is a perspective view of the hanger of the present utility model (as viewed from a radial side of the hanger);

FIG. 9 is a perspective view of the hanger of the present utility model (from the other radial side of the hanger)

FIG. 10 is a perspective view of the drain pump according to the present utility model;

FIG. 11 is an exploded view of the water pump housing assembly of the present utility model.

In the figure, 1, a shell, 2, a hook, 3, a water inlet, 4, a water outlet, 5, a channel structure, 6, a first clamping piece, 601, a first side edge, 602, a bending section, 603, a first clamping hook, 7, a second clamping piece, 701, a second side edge, 702, a second clamping hook, 8, a connecting line, 9, a bayonet, 10, an opening, 11, a first diagonal lacing wire, 12, a second diagonal lacing wire, 13, a water pump shell component, 1301, a water pump shell, 1302, an inner bracket, 1303, a sealing cover, 1304, a sealing gasket, 14, a motor component, 15 and a motor mounting surface.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The water pump shell comprises a shell body 1 with a cavity inside and a hook 2 positioned on the outer surface of the shell body 1, wherein the surface of the shell body 1 is provided with a water inlet 3 and a water outlet 4 which are communicated with the cavity; the hook 2 comprises a first clamping piece 6 and a second clamping piece 7 which enclose a channel structure 5, the channel structure 5 is used for allowing a connecting wire 8 of a drainage pump to pass through, the positions of the connecting wire 8 are limited, one ends of the first clamping piece 6 and the second clamping piece 7 are respectively connected with the shell 1 to form fixed ends, the other ends of the first clamping piece 6 and the second clamping piece 7 are free ends, the free ends are one ends which are not connected with the shell 1, namely one ends which are open, two free ends are provided with clamping hooks which are matched with each other, in a free state, the two clamping hooks form a bayonet 9 for allowing the connecting wire 8 to pass through, and the connecting wire 8 slides into the channel structure 5 through the bayonet 9. When the hook 2 is subjected to an outward force from the channel structure 5, the two hooks can abut against each other to close the bayonet 9.

Compared with the prior art, the utility model improves the single-piece buckle into the two-piece hook 2, when the hook 2 receives the tightening force of the connecting wire 8, the hooks of the two clamping pieces can be mutually attached under the force, thereby forming the laterally closed channel structure 5, being convenient to install and effectively avoiding the connecting wire 8 from sliding out.

Example 1

As shown in fig. 1, 2 and 10, a water pump shell comprises a shell 1 with a cavity therein and a hook 2 positioned on the outer surface of the shell 1, wherein the shell 1 is in a barrel-shaped structure, an axial end opening 10 of the shell 1 is arranged at one end of the shell 1, and the surface of the shell 1 is provided with a water inlet 3 and a water outlet 4 which are communicated with the cavity; the hook 2 comprises a first clamping piece 6 and a second clamping piece 7 which enclose the channel structure 5, and the first clamping piece 6 and the second clamping piece 7 are preferably arranged along the axial direction of the shell 1, so that the connecting wire 8 can extend along the direction vertical to the axial direction of the shell 1, and the connecting wire 8 can directly extend outwards after passing through the channel structure 5 without bending again. One end of the first clamping piece 6 and one end of the second clamping piece 7 are respectively connected with the shell 1 to form a fixed end, the other ends of the first clamping piece 6 and the second clamping piece 7 are free ends, two free ends are provided with hooks matched with each other, the hooks on the first clamping piece 6 are made to be first hooks 603 for distinguishing conveniently, the hooks on the second clamping piece 7 are made to be second hooks 702, in a free state, the first hooks 603 and the second hooks 702 form bayonets 9 for a connecting wire 8 to pass through, and the connecting wire 8 slides into the channel structure 5 through the bayonets 9. When the hook 2 is subjected to an outward force from the channel structure 5, the two hooks can abut against each other to close the bayonet 9 (as shown in fig. 5).

The hooks can be arranged in an inner and outer overlapping mode, when the hooks are subjected to outward acting force, the two hooks can be contacted, the inner and outer overlapping means that the inner side and the outer side are overlapped, but a gap is reserved between the inner side and the outer side, namely, the bayonet 9 is reserved, and the two hooks are not stacked together.

As a preferred embodiment, the two hooks in the present embodiment are overlapped along the radial direction of the housing 1, that is, one hook is located radially inward of the other hook, as shown in fig. 5, the first hook 603 is located radially inward of the second hook 702, and when the connecting wire 8 pulls the first hook 603 outwards, the first hook 603 contacts with the second hook 702, so that the bayonet 9 is closed. Preferably, as shown in fig. 3, the overlapping length C1 of the two hooks along the axial direction satisfies the following condition: c1 is more than 0 and less than or equal to 1.5mm.

In this embodiment, as shown in fig. 2, the specific structures of the first clamping piece 6 and the second clamping piece 7 are shown in fig. 2, the first clamping piece 6 includes a first side edge 601, a bending section 602 and a first hook 603 which are sequentially connected, the second clamping piece 7 includes a second side edge 701 and a second hook 702, the first hook 603 is located at the radial inner side of the second hook 702, the first side edge 601 and the second side edge 701 are arranged in parallel and are respectively connected with the housing 1, the height of the first side edge 601 is greater than that of the second side edge 701, and the height of the first hook 603 is lower than that of the second hook 702, so that the bending section 602 is bent from the radial outer side to the radial inner side in an L shape, thereby the bending section 602, the first hook 603, the second hook 702 and the second side edge 701 form a barb structure, a hook line is convenient, and when the connecting line 8 is tightened, the bending section 602 is forced outwards, the first hook 702 is facilitated to the second hook 702, and the forced is more tightly attached, and the structure is more reliable.

The bending angles of the bending parts of the first clamping piece 6 and the second clamping piece 7 are preferably 90 degrees, so that a regular channel structure 5 is formed, as shown in fig. 1 and 3, the first clamping hook 603 and the second clamping hook 702 are parallel to the axial direction of the shell 1, and the first side edge 601 and the second side edge 701 are perpendicular to the axial direction of the shell 1.

As shown in fig. 1, the left end of the housing 1 is provided with an opening 10, the right end is provided with a motor mounting surface 15, the connecting wire 8 extends from the motor component 14 of the motor mounting surface 5 to the hook 2, and the connecting wire 8 is fixed by the hook 2 and then extends outwards, and the hook 2 is preferably arranged close to the opening 10 of the housing 1 because the opening 10 is arranged closer to the outside, so that the connecting wire 8 is conveniently placed and fixed. Preferably, the first side 601 is located between the opening 10 of the housing 1 and the second side 701 along the axial direction of the housing 1; the axial distance C4 between the first side 601 and the opening 10 of the housing 1 is 30mm to 40mm, most preferably when C4 is 35mm.

In order to ensure that the connecting wire 8 can be placed into the channel structure 5, the width C2 of the bayonet 9 formed by the first hook 603 and the second hook 702 is 1/3-1/2 of the diameter D of the connecting wire 8 (as shown in fig. 3 and 4), when the connecting wire 8 passes through the opening, the bayonet 9 can be opened for a certain distance, so that the connecting wire 8 can pass smoothly, and in fig. 3, the distances between the bending part 602 and the end face of the second hook 702, between the second measuring edge 701 and the end face of the first hook 603, and between the upper and lower surfaces of the first hook 603 and the second hook 702 are all the width C2 of the bayonet 9.

The too large height difference between the first side edge 601 and the second side edge 701 may cause an increase in cost, and the too small height difference between the first side edge 601 and the second side edge 701 may not be effective as a barb, so that the height H1 of the first side edge 601 and the height H3 of the second side edge 701 satisfy the following conditions: h3/h1=1/2 to 2/3.

Example two

On the basis of the first embodiment, a first diagonal lacing wire 11 is connected to one axial side of the first side edge 601 and the second side edge 701, which are positioned outside the channel structure 5, and the first diagonal lacing wire 11 is connected to the housing 1. As shown in fig. 2, the horizontal direction is the axial direction of the casing 1, the left side of the first side edge 601 and the right side of the second side edge 701 are both provided with the first diagonal lacing wire 11, and when the first side edge 601 and the second side edge 701 receive the axial force of the connecting line 8, the first diagonal lacing wire 11 can give enough strength to the two side edges, so that the hook 2 is not easy to break, and the connecting line 8 is further prevented from falling off.

The axial dimension of the first diagonal lacing wire 11 is not required to be too large, so that the reinforcement effect is achieved, and materials can be saved, and therefore, the maximum width C3 of the first diagonal lacing wire 11 and the height H1 of the first side edge 601 meet the following conditions: c3/h1=1/5 to 1/4. The two first diagonal braces 11 are preferably approximately the same height as the corresponding measuring edges, i.e. the first diagonal brace 11 on the left side in fig. 3 is approximately the same height as the first side edge 601, and the first diagonal brace 11 on the right side is approximately the same height as the second side edge 701.

Example III

On the basis of the first embodiment or the second embodiment, along the penetrating direction of the channel structure 5, as shown in fig. 8 and 9, two sides of the first side edge 601 and the second side edge 701 are respectively provided with a second diagonal lacing wire 12, the second diagonal lacing wire 12 is connected with the shell 1, as shown in fig. 6, the second diagonal lacing wire 12 is positioned on the side surface of the first side edge 601 and the second side edge 701 axially parallel to the shell 1, two second diagonal lacing wires 12 are symmetrically arranged on the left side and the right side of the first side edge 601 in fig. 7, and two second diagonal lacing wires 12 are symmetrically arranged on the left side and the right side of the second side edge 701, and each second diagonal lacing wire 12 is preferably equal to the corresponding measuring thickness, and when the second diagonal lacing wire 12 is subjected to the radial acting force of the connecting wire 8 (namely the horizontal acting force in fig. 7), the second diagonal lacing wire 12 gives enough radial strength to the two side edges, and the hook 2 is prevented from being broken to a great extent.

The contact area between the second diagonal lacing wire 12 and the two side edges is not required to be too large, the reinforcement effect is achieved, materials can be saved, and therefore the height H2 of the second diagonal lacing wire 12 and the height H1 of the first side edge 601 meet the following conditions: h2/h1=1/3 to 1/2; the height H2 of the second diagonal tie 12 and the height H3 of the second side edge 701 satisfy the following conditions: h2/h3=2/3 to 3/4.

Example IV

The drain pump comprises a water pump shell 1301, as shown in fig. 10 and 11, wherein the drain pump comprises a water pump shell assembly 13 and a motor assembly 14, the water pump shell assembly 13 is composed of the water pump shell 1301, an inner bracket 1302, a sealing cover 1303 and a sealing pad 1304, the inner bracket 1302 is positioned in a cavity of the water pump shell 1301, and the sealing cover 1303 is sealed in an opening 10 of the water pump shell 1301.

In the description of the present utility model, it should be understood that the terms "center," "left," "right," "horizontal," "inner," "outer," "axial," "radial," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In this specification, a schematic representation of the terms does not necessarily refer to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (15)

1. A water pump housing, characterized in that: the novel water inlet type water outlet pipe comprises a shell (1) with a cavity inside and a hook (2) positioned on the outer surface of the shell (1), wherein the surface of the shell (1) is provided with a water inlet (3) and a water outlet (4) which are communicated with the cavity;

the hook (2) comprises a first clamping piece (6) and a second clamping piece (7) which enclose a channel structure (5), one ends of the first clamping piece (6) and the second clamping piece (7) are respectively connected with the shell (1) to form a fixed end, the other ends of the first clamping piece (6) and the second clamping piece (7) are free ends, two free ends are provided with clamping hooks matched with each other, in a free state, the two clamping hooks form a bayonet (9) for a connecting wire (8) to pass through, and when the hook (2) is subjected to an outward acting force of the channel structure (5), the two clamping hooks can be mutually abutted to enable the bayonet (9) to be closed.

2. The water pump housing of claim 1, wherein: along the radial direction of the shell (1), one clamping hook is positioned on the radial inner side of the other clamping hook.

3. A water pump housing according to claim 2, wherein: the first clamping piece (6) comprises a first side edge (601), a bending section (602) and a first clamping hook (603) which are sequentially connected, the second clamping piece (7) comprises a second side edge (701) and a second clamping hook (702), the first clamping hook (603) is located on the radial inner side of the second clamping hook (702), the first side edge (601) and the second side edge (701) are arranged in parallel and are respectively connected with the shell (1), and the height of the first side edge (601) is larger than that of the second side edge (701).

4. A water pump housing according to claim 3, wherein: the first side edge (601) and the second side edge (701) are arranged along the axial direction of the shell (1).

5. A water pump housing according to claim 3, wherein: the first clamping hook (603) and the second clamping hook (702) are parallel to the axial direction of the shell (1), and the first side edge (601) and the second side edge (701) are perpendicular to the axial direction of the shell (1).

6. The water pump housing of claim 4, wherein: the first side edge (601) and the second side edge (701) which are positioned outside the channel structure (5) are connected with a first diagonal lacing wire (11) on one axial side, and the first diagonal lacing wire (11) is connected with the shell (1).

7. The water pump housing of claim 4, wherein: along the direction of link up of channel structure (5), both sides of first side (601) and second side (701) all are equipped with second diagonal lacing wire (12), second diagonal lacing wire (12) are connected with casing (1).

8. The water pump housing of claim 4, wherein: the first side edge (601) is located between an opening (10) and a second side edge (701) of the housing (1) along the axial direction of the housing (1);

the axial distance C4 between the first side edge (601) and the opening (10) of the shell (1) is 30-40 mm.

9. The water pump housing of claim 8, wherein: c4 =35 mm.

10. The water pump housing of claim 4, wherein: the height H1 of the first side edge (601) and the height H3 of the second side edge (701) meet the following conditions: h3/h1=1/2 to 2/3.

11. A water pump housing according to claim 2, wherein: the overlapping length C1 of the two clamping hooks along the axial direction meets the following conditions: c1 is more than 0 and less than or equal to 1.5mm.

12. The water pump housing of claim 6, wherein: the maximum width C3 of the first diagonal lacing wire (11) and the height H1 of the first side edge (601) meet the following conditions: c3/h1=1/5 to 1/4.

13. The water pump housing of claim 7, wherein: the height H2 of the second diagonal lacing wire (12) and the height H1 of the first side edge (601) meet the following conditions: h2/h1=1/3 to 1/2; the height H2 of the second diagonal lacing wire (12) and the height H3 of the second side edge (701) meet the following conditions: h2/h3=2/3 to 3/4.

14. The water pump housing of claim 1, wherein: in the free state, the width C2 of the bayonet (9) and the diameter D of the connecting line (8) satisfy the following conditions: c2/d=1/3 to 1/2.

15. A drain pump, characterized by: a pump housing comprising the water pump of any one of claims 1-14.