Water pump

Abstract

The utility model provides a water pump. The water pump comprises a pump body and a base. A limiting part is arranged on the pump body, and the base is detachably connected with the pump body through a rotary knob piece. The rotary knob piece is rotatably installed on the base and comprises an extending part, and after the rotary knob piece rotates to the locking position, the extending part is matched with the limiting part to limit axial movement of the pump body. The novel water pump has the advantages that the connecting structure of the pump body and the base is simple, mounting and dismounting are convenient, the operation space is large, permanent deformation or breakage is not prone to occurring, and impurities are not prone to entering.

Description

Technical Field

[0001] The present disclosure relates to the technical field of mechanical equipment, and in particular, to a water pump. Background Art

[0002] With the acceleration of the industrialization process and the improvement of the automation level, the demand for water pump equipment in all industries is increasing continuously. Especially in the fields of water treatment, agricultural irrigation, industrial cooling, etc., the stability, convenience of disassembly and assembly, and easy maintainability of the water pump have become the key concerns of users.

[0003] In the existing water pump designs, the connection between the pump body and the base of the water pump generally adopts a snap structure. This snap structure is usually integrally formed with the base and is used to fix the pump body on the base. This design simplifies the installation process to a certain extent, enabling the water pump to be quickly positioned during the initial installation. However, as the usage time of the water pump extends and the working conditions become more complex, a series of problems gradually emerge in the snap structure of the prior art. For example, during the use of the existing snap structure, due to frequent disassembly and assembly or long-term bearing of the weight of the pump body, the snap position is prone to permanent deformation or even fracture. This not only affects the stability of the water pump but also increases the maintenance cost and the difficulty of replacement. After the snap structure is deformed, the sealing performance between the pump body and the base often decreases, easily causing liquid leakage and affecting the normal operation of the equipment. The gap formed at the snap position becomes a potential channel for impurities to enter the interior of the water pump, easily leading to blockage and affecting the normal use of the water pump. Once impurities enter the interior of the water pump, the cleaning work will become extremely complex, possibly requiring the disassembly of the entire water pump, increasing the maintenance difficulty and the downtime. The existing snap structure requires specific tools and complex operation steps for disassembly and assembly, which not only consumes time and effort but also easily damages the snap or the pump body during the disassembly and assembly process, especially not suitable for occasions where the water pump needs to be frequently replaced or maintained. Summary of the Utility Model

[0004] To solve at least a part of the above problems, the present disclosure provides a novel water pump with a base that can be quickly disassembled and assembled. The pump body and the base of the water pump are detachably connected through a knob member. After the pump body is placed in the base, rotating the knob member causes the extension portion on the knob member to press against the pump body, restricting the axial movement of the pump body and preventing the pump body from being removed from the base. When the pump body needs to be removed, simply rotate the knob member to release the axial limit. This novel water pump has the advantages of a simple connection structure between the pump body and the base, being convenient for installation and disassembly, having a large operating space, being not prone to permanent deformation or fracture, and being difficult for impurities to enter.

[0005] According to an embodiment of the present disclosure, a water pump is provided, including: a pump body, on which a limiting portion is provided; a base, detachably connected to the pump body through a knob member; wherein, the knob member is rotatably mounted on the base, the knob member includes an extending portion, and after the knob member rotates to the locking position, the extending portion cooperates with the limiting portion to limit the axial movement of the pump body.

[0006] In an implementation manner of this embodiment, a limiting rib is provided on the knob member, a limiting rib through-hole and a limiting rib stop surface are provided on the base, after the limiting rib passes through the limiting rib through-hole, the knob member is rotated forward so that the limiting rib enters below the limiting rib stop surface, and the limiting rib cooperates with the limiting rib stop surface to axially limit the knob member.

[0007] In an implementation manner of this embodiment, a snap rib is provided on the knob member, and an anti-rotation snap is provided on the base. When the limiting rib enters below the limiting rib stop surface, the snap rib passes over the anti-rotation snap and cooperates with it to radially limit the knob member, so that the knob member cannot rotate reversely.

[0008] In an implementation manner of this embodiment, the position where the snap rib cooperates with the anti-rotation snap is the first position, a limiting snap is provided on the base, and the knob member rotates forward from the first position over the limiting snap to the second position, where the first position is the unlocking position or the locking position, and correspondingly, the second position is the locking position or the unlocking position.

[0009] In an implementation manner of this embodiment, the base is provided with a receiving cavity, a spring and a ball are provided in the receiving cavity, and a first limiting groove and a second limiting groove for radially limiting the knob member in cooperation with the ball are provided below the knob member, corresponding to the locking position and the unlocking position of the knob member respectively.

[0010] In an implementation manner of this embodiment, the limiting portion is the first limiting portion, the pump body further includes a second limiting portion, and the base includes a third limiting portion corresponding to the second limiting portion. When the knob member rotates to the locking position, it acts on the pump body so that the third limiting portion cooperates with the second limiting portion to axially limit the pump body.

[0011] In an implementation manner of this embodiment, the water pump includes a plurality of the knob members, which are evenly arranged on the base to axially limit the pump body.

[0012] In an implementation manner of this embodiment, the knob member includes an operation handle, which extends in the opposite direction to the extending portion.

[0013] In one implementation of this embodiment, the extension portion can be operated by the user to rotate the knob member.

[0014] In one implementation of this embodiment, the third limiting portion is symmetrically arranged with the knob member.

[0015] The water pump proposed by the present disclosure realizes the detachable connection between its pump body and the base through a knob member. After the pump body is placed in the base, rotate the knob member so that the extension portion of the knob (the part that protrudes outward from the knob member) presses against the pump body to ensure that the pump body cannot be taken out of the base. When the user needs to take out the pump body, just rotate the knob member to take out the pump body. The installation and removal of the base of this water pump can be achieved only by rotating the knob member, which has the advantages of simple operation, no permanent deformation even after repeated operation of the components, the components are not easily broken, a large operating space, a long service life, and no buckle notch on the pump body so that impurities are not easily introduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features and advantages of the present disclosure can be better understood through the following preferred embodiments described in detail in conjunction with the drawings, where:

[0017] Figure 1 FIG. shows a cross-sectional schematic view of a knob connection structure of a water pump with a quickly detachable base according to an embodiment of the present disclosure.

[0018] Figure 2 FIG. shows a top view of a partial structure of a water pump with a quickly detachable base according to an embodiment of the present disclosure.

[0019] Figure 3a and Figure 3b FIG. shows schematic views of a knob member at different angles according to an embodiment of the present disclosure.

[0020] Figure 4a FIG. shows a cross-sectional schematic view of a limiting connection structure of a water pump with a quickly detachable base according to an embodiment of the present disclosure.

[0021] Figure 4b FIG. shows Figure 4a an enlarged schematic view of area M in

[0022] Figure 5 FIG. shows a schematic view of another connection structure between a knob member and a base according to an embodiment of the present disclosure.

[0023] Figure 6 FIG. shows Figure 5 a schematic view of the structure of the knob member in

[0024] Figure 7 FIG. shows Figure 5 a schematic view of the structure of the base in Detailed implementation manners

[0025] In the following detailed description of the preferred embodiments, reference will be made to the accompanying drawings which form a part of the present disclosure. The accompanying drawings illustrate, by way of example, specific embodiments that can implement the present disclosure. The exemplary embodiments are not intended to exhaust all embodiments according to the present disclosure. It can be understood that other embodiments can be utilized and structural or logical modifications can be made without departing from the scope of the present disclosure. Therefore, the following detailed description is not restrictive, and the scope of the present disclosure is defined by the appended claims.

[0026] Before introducing the embodiments of the present disclosure, some terms involved in the present disclosure are first explained to better understand the present disclosure.

[0027] The terms "a", "a group of" or "one" and the like used in the present disclosure do not indicate a quantity limitation, but rather indicate the existence of at least one. The terms "comprising", "including" and similar terms used in the present disclosure should be understood as open terms, that is, "including / including but not limited to", indicating that other contents can also be included. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment" and so on. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0028] As described above, for the problems in the prior art that the snap connection structure between the pump body and the base of the water pump is prone to permanent deformation or even fracture, impurities are easy to enter and cause blockage, and the disassembly and assembly efficiency is low, the present disclosure proposes a water pump with a knob connection structure between the pump body and the base, that is, a water pump with a base that can be quickly disassembled and assembled. Through this knob connection structure, the quick installation and removal of the base can be realized, which can meet the installation, maintenance or repair requirements in different scenarios. The water pump can be a submersible pump (such as a multi-stage submersible pump, a deep well submersible pump), a centrifugal pump, an axial flow pump, a mixed flow pump, etc. The following will elaborate on it in detail with specific embodiments.

[0029] Figure 1 The cross-sectional view of the knob connection structure of a water pump with a base that can be quickly disassembled and assembled according to an embodiment of the present disclosure is shown. Figure 2 As shown in Figure 1 the top view of a part of the structure of the water pump in Figure 1 and Figure 2As shown, the water pump includes a pump body 110 and a base 120, and a knob member 130 is installed on the base 120. The base 120 is detachably connected to the pump body 110 through the knob member 130. The knob member 130 is rotatably installed on the base 120, and the knob member 130 includes an extension portion 132, and a limiting portion 112 is provided on the pump body 110. When the knob member 130 rotates to the locking position (i.e., Figure 1 the position shown), the extension portion 132 cooperates with the limiting portion 112 (the extension portion can be located above the limiting portion as shown in the figure, or other methods such as inserting into the limiting portion can be used for limiting cooperation) to limit the axial movement of the pump body 110. When the knob member 130 rotates to the unlocking position, the extension portion 132 turns away from the limiting portion and no longer limits the axial movement of the pump body, and the pump body can be taken out from the base, thus realizing quick disassembly.

[0030] The knob member 130 is rotatably installed on the base 120, and its installation method can be threaded connection, snap connection, etc. In some examples, the knob member 130 is installed on the base 120 through a connecting member 140. Specifically, an installation through hole 134 is provided on the knob member 130, a connection hole 122 is provided on the base 120, and the connecting member 140 passes through the installation through hole 134 and is fixedly connected to the base 120, thereby rotatably installing the knob member 130 on the base. The top width of the connecting member 140 can be greater than the inner diameter of the installation through hole 134. The connecting member 140 can be a threaded member or a snap connecting member. Correspondingly, a connection hole 122 (which can be a threaded hole) or a card slot (not shown) is provided on the base for cooperation with the connecting member.

[0031] When the knob member 130 rotates to the locking position, the extension portion 132 cooperates with the limiting portion 112 to limit the axial movement of the pump body 110. When the knob member 130 rotates to the unlocking position, the extension portion 132 turns away from the limiting portion and no longer limits the axial movement of the pump body. The knob member 130 forms a rotational limiting structure with the base 120 at the locking position and the unlocking position respectively to prevent the knob member from rotating under non-user operation, maintain the stability of the connection structure between the pump body and the base, and improve the use safety. The rotational limiting structure between the knob member 130 and the base 120 can be a snap limiting structure, a spring ball limiting structure or other types of limiting structures.

[0032] Such as Figure 3a and 3bAs shown, in some examples, the rotation limiting structure between the knob member 130 and the base 120 is a spring and ball limiting structure. The knob member 130 is provided with a rotation limiting groove 136. The base 120 is provided with a receiving cavity, in which a spring and a ball are provided. The rotation limiting groove 136 includes a first limiting groove and a second limiting groove that cooperate with the spring and the ball to radially limit (rotate and limit) the knob member, corresponding to the locking position and the unlocking position of the knob member respectively, to avoid unwanted rotational deviation of the knob member and ensure the stability and use safety of the water pump structure.

[0033] In some examples, the knob member 130 further includes an operation handle 138. The knob member 130 can extend in a direction opposite to the extension portion 132 to form the operation handle, or it can be in other arrangement directions that are convenient for the user to rotate the knob member. The shape, extension angle, height, thickness, etc. of the operation handle 138 can be flexibly designed in combination with the application environment and the convenience of user operation. For example, the operation handle 138 can be annular or other structures convenient for user operation.

[0034] As Figure 3a and 3b shown, in some examples, the knob member 130 may not be additionally designed with an operation handle, and the width, thickness or protrusion of the extension portion can be designed according to the operation needs, so that the extension portion 132 can also be used by the user to rotate the knob member for rotation, thereby limiting or releasing the limit of the pump body.

[0035] In some examples, the pump body 110 and the base 120 can be detachably connected by a plurality of knob members 130. The plurality of knob members 130 can be evenly deployed on the base 120 to axially limit the pump body 110. For example, two knob members can be symmetrically arranged at both ends of the base 120. Another example is that four knob members can be symmetrically arranged in the front, rear, left, and right of the base. The number of knob members can be flexibly adjusted according to the actual application scenario to achieve a balance between the stability of the water pump structure, simplifying the structure, and reducing costs.

[0036] In some examples, the limiting portion 112 is the first limiting portion, the pump body 110 further includes a second limiting portion 114, and the base 120 includes a third limiting portion 126 corresponding to the second limiting portion 114. When the knob member 130 rotates to the locking position, it acts on the pump body 110 so that the third limiting portion 126 cooperates with the second limiting portion 114 to axially limit the pump body. In some examples, the third limiting portion 126 and the knob member 130 are symmetrically arranged at both ends of the base.

[0037] Refer to Figure 4a and 4b for further showing the structural relationship between the second limiting portion 114 and the third limiting portion 126, where Figure 4b is Figure 4aEnlarged schematic view of the middle region M. As Figure 4a and 4b shown, the second limiting part 114 is an outward protruding part, and the third limiting part 126 is a limiting groove cooperating with it. During the process of rotating the knob part to the locking position, a force (thrust) is applied to the pump body to insert the second limiting part into the third limiting part. The knob part at the locking position and the mutually cooperating second and third limiting parts together achieve axial limitation of the pump body. In some examples, the water pump includes a hard limiting structure composed of a knob part and a set of second limiting parts 114 and third limiting parts 126 symmetrically arranged with the knob part. In practical applications, the water pump can flexibly set the position and number of the knob part and the hard limiting structure according to needs to achieve a balance between the stability of the water pump structure, simplifying the structure, and reducing costs.

[0038] Figures 5 - 7 Shows another connection structure between the knob part and the base. Among them, Figure 5 is a schematic diagram of the structure of the knob part and the base, Figure 6 is a schematic diagram of the structure of the knob part from another angle, Figure 7 is a schematic diagram of the structure of the base from another angle. As Figures 5 - 7 shown, the knob part 130 is snap-fitted to the base 120.

[0039] In some examples, the knob part 130 is provided with a limiting rib 1310, and the base 120 is provided with a limiting rib through hole 128 and a limiting rib stop surface 1210. After the limiting rib 1310 passes through the limiting rib through hole 128, rotate the knob part 130 in the positive direction ( Figure 5 the direction of the arrow N in the figure, clockwise direction) so that the limiting rib 1310 enters below the limiting rib stop surface 1210. The limiting rib 1310 cooperates with the limiting rib stop surface 1210 to axially limit the knob part, that is, due to the blockage of the limiting rib stop surface, the knob part cannot be pulled out axially.

[0040] Furthermore, in some examples, the knob part 130 is provided with a snap rib 1312, and the base is provided with a rotation prevention snap 1212. When the limiting rib 1310 enters below the limiting rib stop surface 1210, the snap rib 1312 crosses over the rotation prevention snap 1212 and cooperates with it to radially limit the knob part 130, which can not only prevent the knob part from rotating when the user does not perform a rotation operation, including forward rotation and reverse ( Figure 5In the middle is the reverse direction of arrow N (counterclockwise rotation), which also makes the knob member 130 unable to be rotated reversely when the user performs a rotation operation. In this example, through the cooperation between the limiting ribs of the knob member and the limiting rib stop surface of the base, and the cooperation between the snap ribs of the knob member and the anti-rotation snap of the base, the knob member 130 is rotatably mounted on the base. The mounting method between the knob member and the base is different from the mounting method through the mounting through hole 134 and the connecting member 140 in the previous text. The knob member does not need to be provided with a mounting through hole 134, nor does it need an additional connecting member 140 to achieve the mounting on the base. In some examples, the L-shaped groove in which the anti-rotation snap 1212 vertically sinks has no reverse transition slope, and the knob member cannot be rotated reversely.

[0041] In some examples, the position where the snap rib 1312 cooperates with the anti-rotation snap 1212 is the first position, and the base is also provided with a limiting snap 1214. The knob member rotates forward from the first position over the limiting snap 1214 to the second position. The first position can be an unlocking position or a locking position. When the first position is the unlocking position, correspondingly, the second position is the locking position; when the first position is the locking position, correspondingly, the second position is the unlocking position. Transition slopes are respectively provided on both sides of the limiting snap 1214, enabling the user to perform forward or reverse rotation operations on the knob member, so that the knob member can be switched between the locking position and the unlocking position. As Figure 6 shown, in some examples, the knob member 130 includes an operation protrusion 1314 for the user to operate to rotate the knob member.

[0042] In some examples, the base 120 can be a filter base for filtering the water flow entering the water pump when the water pump is running, so as to prevent particulate matters such as impurities and sediment from entering the interior of the water pump, thereby protecting the water pump from damage and improving its operating efficiency and service life. The filter base is usually designed with a structure that is convenient for installation, disassembly and cleaning, facilitating the user to clean and maintain regularly and extending the service life of the water pump. Therefore, the connection structure between the base and the pump body based on the knob member in the present disclosure is particularly applicable to a water pump equipped with a filter base.

[0043] This document is described with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications can be made to the exemplary embodiments without departing from the scope of this document. Although the principles of this document have been shown in various embodiments, many modifications of the structures, arrangements, proportions, elements, materials, and components that are particularly applicable to specific environments and operating requirements can be used without departing from the principles and scope of this disclosure. The above modifications and other changes or corrections will be included within the scope of this document. The foregoing detailed description has been described with reference to various embodiments. However, those skilled in the art will recognize that various corrections and changes can be made without departing from the scope of this disclosure. Therefore, the consideration of this disclosure will be in an illustrative rather than a restrictive sense, and all such modifications will be included within its scope. Similarly, the advantages, other advantages, and solutions to problems with respect to the various embodiments have been described above. However, benefits, advantages, solutions to problems, and any elements that can produce these, or solutions that make them more explicit, should not be construed as critical, essential, or necessary. As used herein, the term "comprising" and any other variants thereof are non-exclusive inclusions, such that a process, method, article, or apparatus that includes a list of elements not only includes those elements but also other elements not expressly listed or that are not part of the process, method, system, article, or apparatus. In addition, as used herein, the term "coupled" and any other variants thereof refer to physical connection, electrical connection, magnetic connection, optical connection, communication connection, functional connection, and / or any other connection.

[0044] Those having skill in the art will recognize that many changes may be made to the details of the above-described embodiments without departing from the basic principles of the disclosure. Thus, the scope of the disclosure should be determined solely by the claims.

Claims

1. A water pump, comprising: A pump body, on which a limiting portion is provided; A base, detachably connected to the pump body via a knob; The knob member is rotatably mounted on the base, and the knob member includes an extension portion. After the knob member is rotated to a locking position, the extension portion cooperates with the limiting portion to limit the axial movement of the pump body.

2. The water pump according to claim 1, wherein: The knob part is provided with a limiting rib, and the base is provided with a limiting rib through hole and a limiting rib stop surface. After the limiting rib passes through the limiting rib through hole, the knob part is rotated in the positive direction so that the limiting rib enters under the limiting rib stop surface. The limiting rib cooperates with the limiting rib stop surface to axially limit the knob part.

3. The water pump according to claim 2, wherein: The knob member is provided with a buckle rib, and the base is provided with a stop buckle. When the limiting rib enters below the stop surface of the limiting rib, the buckle rib passes over the stop buckle and cooperates with it to radially limit the knob member, so that the knob member cannot rotate in the reverse direction.

4. The water pump according to claim 3, wherein: The position where the buckle rib cooperates with the anti-rotation buckle is the first position, and a limit buckle is provided on the base. The knob member rotates positively from the first position to pass through the limit buckle to the second position, wherein the first position is an unlocking position or a locking position, and correspondingly, the second position is a locking position or an unlocking position.

5. The water pump according to claim 1, wherein: The base is provided with a receiving cavity, in which a spring and a ball are arranged. A first limiting groove and a second limiting groove cooperating with the ball to radially limit the knob member are provided below the knob member, corresponding to the locking position and the unlocking position of the knob member respectively.

6. The water pump according to claim 1, wherein: The limiting portion is a first limiting portion, the pump body also includes a second limiting portion, and the base includes a third limiting portion corresponding to the second limiting portion. When the knob member is rotated to the locking position, it acts on the pump body so that the third limiting portion cooperates with the second limiting portion to axially limit the pump body.

7. The water pump according to claim 1, wherein: It comprises a plurality of knob members which are evenly arranged on the base to limit the axial position of the pump body.

8. The water pump according to claim 1, wherein: The knob member includes an operating handle extending in the opposite direction relative to the extending portion.

9. The water pump according to claim 1, wherein: The extension portion is operable by a user to rotate the knob member.

10. The water pump according to claim 6, wherein: The third limiting portion is symmetrically arranged with respect to the knob member.

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