Mounting and positioning structure of dust cover of water pump

Abstract

The utility model discloses a mounting and positioning structure of a dust cover of a water pump, the dust cover comprises a top end part, the upper end surface of the top end part is provided with a through glue injection hole, the edge of the inner end surface of the top end part is provided with a combination part which is clamped with a spigot part at the upper end of a pump body, and the combination part can fix a spigot at the upper end of the pump body. The inner end face of the top end portion is further provided with a glue inlet portion fixed with pump body glue, after the columnar body arranged on the inner end face is inserted into the injected glue to be solidified, the purpose of fixing the dustproof cover and the pump body can be achieved, complexity of a two-component mold is reduced, meanwhile, the dustproof cover is further provided with a power line hole, and cost is reduced. The power line hole and the positioning boss on the pump body can be conveniently assembled and positioned, and the glue position line marking opening of the positioning boss can effectively warn the glue injection height.

Description

Technical Field

[0001] The utility model relates to the field of water pumps, in particular to the field of water pumps which are fixed by injecting glue from a top cover. Background Art

[0002] The top cover of the water pump is also called the dust cover. In the common dust cover structure, a buckle structure is set between the dust cover and the pump body to achieve the purpose of fixing after assembly. However, this structural method will lead to a complex mold structure and increased mold costs. In addition, the controllability of the fit between the two components is difficult to grasp, which easily leads to poor fit. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an installation and positioning structure for a water pump dust cover, the dust cover includes a top end portion, the upper end surface of the top end portion is provided with a through glue injection hole, the inner end surface edge of the top end portion is provided with a joint portion clamped with the upper end stop portion of the pump body, the inner end surface of the top end portion is also provided with a glue entry portion fixed with glue of the pump body, and a power cord hole is also provided on one side of the top end portion.

[0004] Furthermore, the joint part is an outer ring part and a positioning ring cocentric with the outer ring part, and the joint part can position and clamp the stopper position at the upper end of the pump body.

[0005] Furthermore, the outer end surface of the positioning ring is provided with at least three positioning ribs, which are evenly distributed with the center of the positioning ring as the center. The positioning ribs can play a role in transitionally reducing the space and tightening the stop position at the upper end of the pump body.

[0006] Furthermore, the glue entry portion is a columnar body, and there are at least three or more columnar bodies evenly distributed on the positioning ring and placed on the opposite side of the positioning rib. The columnar body can be inserted into the glue in the inner cavity of the pump body. After the glue solidifies, the columnar body is fixed therein, thereby effectively fixing the dust cover to the pump body.

[0007] Preferably, the surface of the column is also provided with ribs which are in the same direction as its axis and can increase friction and strength. The ribs help to improve its own strength and prevent it from breaking easily, and can increase friction, and cooperate more firmly with the solidified glue.

[0008] Furthermore, a positioning boss is provided at the position where the pump body and the power cord hole of the dust cover cooperate, and a glue position line marking port is provided at the upper end of the positioning boss. When the glue injected into the glue injection hole reaches the glue position line marking port, the glue injection can be stopped, which plays a control role in the glue injection process. There are also reinforcing ears on both sides of the glue position line marking port.

[0009] The working principle of the utility model is as follows: the dust cover of the water pump has a glue injection hole for convenient glue injection from the top, the inner end face of the dust cover is provided with a joint portion, which can fix the stopper on the upper end of the pump body, and the columnar body arranged on the inner end face is inserted into the injected glue and solidified, which can fix the dust cover to the pump body, reducing the complexity of the two-component mold, and at the same time, the dust cover also has a power cord hole and the power cord hole and the positioning boss on the pump body can be conveniently assembled and positioned, and the glue position line marking port of the positioning boss can also effectively warn the glue injection height. This new structural method can effectively improve the technical content of water pump products and reduce their costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0011] Figure 1 An exploded schematic diagram of the utility model is shown.

[0012] Figure 2 An enlarged view of the dust cover of the utility model is shown.

[0013] Figure 3 The figure shows the finished product of the utility model after assembly.

[0014] Figure 4 A cross-sectional view of the present invention is shown. DETAILED DESCRIPTION

[0015] like Figure 1-Figure 4 As shown, the present invention is further described in detail by way of embodiments:

[0016] The utility model discloses an installation and positioning structure of a water pump dust cover. In the present embodiment, the dust cover 1 comprises a top end portion 16, the upper end surface of the top end portion 16 is provided with a penetrating glue injection hole 15, the inner end surface edge of the top end portion 16 is provided with a joint portion clamped with a stopper portion at the upper end of a pump body, the joint portion is an outer ring portion 12 and a positioning ring 13 cocentric with the outer ring portion 12, and the joint portion can position and clamp the stopper position at the upper end of the pump body.

[0017] In this embodiment, the inner end surface of the top end portion 16 is also provided with a glue entry portion fixed with the glue of the pump body, and the glue entry portion is a columnar body 14. There are at least three or more columnar bodies 14 evenly distributed on the positioning ring 13 and placed on the opposite side of the positioning rib 131. The columnar body 14 can be inserted into the glue in the glue cavity 22 of the pump body. After the glue solidifies, the columnar body 14 is fixed therein, so that the dust cover 1 and the pump body 2 are effectively fixed. The lower end of the pump body 2 is the water pump bottom 3.

[0018] In this embodiment, a power cord hole 11 is further provided on one side of the top end portion 16 as a through hole for the power cord. The power cord hole 11 has a smooth surface or can be installed with a wire sheath to protect the power cord surface from damage.

[0019] In this embodiment, at least three positioning ribs 131 are provided on the outer end surface of the positioning ring 13. The positioning ribs 131 are evenly distributed around the center of the positioning ring 13. The positioning ribs 131 can play a role in transitionally reducing the space and tightening the stop position at the upper end of the pump body.

[0020] Preferably, the surface of the columnar body 14 is also provided with ribs which are in the same direction as its axis and can increase friction and strength. The ribs help to improve its own strength and prevent it from breaking easily, and can increase friction, and cooperate more firmly with the solidified glue.

[0021] In this embodiment, the pump body 2 is further provided with a positioning boss 21 at the position where it matches the power cord hole 11 of the dust cover 1. The upper end of the positioning boss 21 is provided with a glue position line marking port 211. When the glue injected into the glue injection hole 15 reaches the glue position line marking port 211, the glue injection can be stopped, which plays a control role in the glue injection process. There are also reinforcing ears 212 on both sides of the glue position line marking port 211. The positioning boss 21 is assembled corresponding to the power cord hole 11 of the dust cover 1 to prevent the dust cover 1 from being installed in an offset position, which causes the power cord to be installed in an offset position.

[0022] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communicative with each other; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited.

[0025] For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present utility model. Those of ordinary skill in the art can change, modify, replace and modify the above embodiments within the scope of the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A water pump dust cover installation and positioning structure, the dust cover includes a top portion, characterized in that: A through glue injection hole is provided on the upper end face of the top end portion, a joint portion clamped with the stop portion at the upper end of the pump body is provided on the edge of the inner end face of the top end portion, a glue entry portion fixed with the glue of the pump body is also provided on the inner end face of the top end portion, and a power cord hole is also provided on one side of the top end portion.

2. The installation and positioning structure of a water pump dust cover according to claim 1, characterized in that: The joint portion is an outer ring portion and a positioning ring which is cocentric with the outer ring portion.

3. The installation and positioning structure of a water pump dust cover according to claim 2, characterized in that: The outer end surface of the positioning ring is provided with at least three positioning ribs, and the positioning ribs are evenly distributed with the center of the positioning ring as the center.

4. The installation and positioning structure of a water pump dust cover according to claim 1, characterized in that: The glue entry portion is a columnar body, and at least three of the columnar bodies are evenly distributed on the positioning ring and are placed on the reverse side of the positioning rib.

5. The installation and positioning structure of a water pump dust cover according to claim 4, characterized in that: The surface of the columnar body is also provided with ribs which are consistent with the axis direction and can increase the friction and strength.

6. The installation and positioning structure of a water pump dust cover according to claim 1, characterized in that: A positioning boss is also provided at the position where the pump body and the power line hole of the dust cover match, a glue position line marking port is provided at the upper end of the positioning boss, and reinforcing ears are provided on both sides of the glue position line marking port.

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