Base for delivery pump

Abstract

The utility model relates to a base for a delivery pump, the delivery pump comprises a pump shell, the pump shell is provided with a first cylinder part, a second cylinder part, a step part located at the joint of the first cylinder part and the second cylinder part, and a plurality of first limiting parts which are annularly distributed on the step part; the base comprises: a base; the mounting seat is arranged on the base; and the first cylinder part is basically of a cylindrical structure with at least one open end, and a plurality of second limiting parts which are annularly distributed are arranged at the end part of the open end of the first cylinder part, so that the first cylinder part is matched with the first limiting parts after being embedded into the mounting seat through the open end to realize relative positioning of the base and the delivery pump. Before assembly, the conveying pump is rotated according to needs, so that the angle of the water outlet hole is adjusted to adapt to different installation environments, and better applicability is achieved.

Description

Technical Field

[0001] The utility model relates to a base for a delivery pump, which is mainly used for pump products for liquid delivery, such as a centrifugal pump for a water purifier. Background Art

[0002] A water pump is a machine that transports liquid or increases the pressure of liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increases the energy of the liquid, and thus realizes the transportation of the liquid.

[0003] Currently, the delivery pumps used in the liquid delivery industry on the market have either an integrated base and housing structure or a split structure. For example, Chinese Utility Model Publication No. CN219412876U discloses a water pump noise reduction structure for a water purifier, comprising a water purifier body, a water pump disposed within the body, and a mounting base provided on the outer shell of the water purifier body. The mounting base has a raised boss, and the water pump is mounted and fixed on the boss. The boss and mounting base are an integrated and flexible structure. When a water purifier adopts this noise reduction structure, it can eliminate the vibration noise generated by the water pump during operation, thereby reducing the overall operating decibel level of the water purifier and minimizing the impact on the user's life.

[0004] The disadvantage of this structure is that a mounting seat is provided on the outer shell of the water purifier body, and the mounting seat has a raised boss, and the water pump is installed and fixed on the boss; that is, the installation position and angle of the water pump cannot be adjusted, and the direction of the water outlet of the water pump cannot be adjusted, which has certain limitations in the actual installation and use process. Summary of the Invention

[0005] The purpose of the utility model is to provide a base for a delivery pump in view of the above-mentioned problems.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0007] A base for a delivery pump, the delivery pump comprising a pump housing, the pump housing having a first cylindrical portion, a second cylindrical portion, a step portion located at a junction of the first cylindrical portion and the second cylindrical portion, and a plurality of first limiting portions distributed in an annular shape on the step portion;

[0008] The base comprises:

[0009] base;

[0010] The mounting seat is arranged on the base; it is basically a cylindrical structure with at least one end open, and the end of its open end is provided with several second limiting parts distributed in a ring shape, so that the first cylindrical part can be embedded in the mounting seat through the open end and cooperate with the first limiting part to achieve relative positioning of the base and the delivery pump.

[0011] Preferably, the first limiting portion is a plurality of positioning bosses formed on the step portion, and the second limiting portion is a plurality of positioning grooves formed at the open end of the mounting seat; or, the first limiting portion is a plurality of positioning grooves formed on the step portion, and the second limiting portion is a plurality of positioning bosses formed at the open end of the mounting seat.

[0012] Preferably, the size of the root of the positioning boss is slightly smaller than the size of the head, and the size of the notch of the positioning groove is slightly smaller than the size of the groove bottom.

[0013] Preferably, the number of the positioning bosses is smaller than the number of the positioning grooves.

[0014] Preferably, the number of the positioning bosses is 4 and they are evenly distributed, and the number of the positioning grooves is 24 and they are evenly distributed.

[0015] Preferably, the delivery pump further includes a pump cover mounted on the end of the pump casing.

[0016] Preferably, a water outlet joint is provided on the pump cover, and the axis of the water outlet joint is parallel to the end face of the pump cover; a positioning mark is provided on the side wall of the pump casing, and the radial line segment from the positioning mark to the axis of the pump casing is parallel to the axis of the water outlet joint.

[0017] Preferably, the mounting seat is further provided with a scale for cooperating with the positioning mark to indicate the water outlet angle of the water outlet connector.

[0018] Preferably, four first connecting parts are evenly arranged on the pump casing, and countersunk holes are formed on the end faces of any three of the connecting parts; four second connecting parts that cooperate with the first connecting parts are provided on the pump cover, and three of the second connecting parts are formed with protrusions that adapt to the countersunk holes; the first connecting part and the second connecting part are connected by bolts.

[0019] Preferably, a mounting pad is also provided on the base.

[0020] The beneficial effects of the present invention are:

[0021] 1. The mounting base of the present invention is generally cylindrical in structure, with at least one end open. The end of the open end is provided with a plurality of annularly distributed second limiting portions. This allows the first cylindrical portion, after being inserted into the mounting base through the open end, to cooperate with the annularly distributed first limiting portions to achieve relative positioning between the base and the delivery pump. This allows the delivery pump to be rotated a certain angle relative to the base along its axis, while still being able to achieve relative positioning using the annularly distributed first limiting portions and the annularly distributed second limiting portions. Prior to assembly, the delivery pump can be rotated as needed to adjust the angle of its water outlet to suit different installation environments, providing improved applicability.

[0022] 2. The size of the root of the positioning boss is slightly smaller than that of the head, and the size of the notch of the positioning groove is slightly smaller than that of the bottom of the groove; in this way, during installation, as long as a sufficient force is applied to make the positioning boss embedded in the positioning groove, the relative positioning of the base and the delivery pump can be achieved, and the two can be prevented from separating from each other, thereby ensuring the stability of the product.

[0023] 3. The pump cover is equipped with a water outlet connector, the axis of which is parallel to the end face of the pump cover. A positioning mark is provided on the side wall of the pump casing, and the radial line segment from the positioning mark to the pump casing axis is parallel to the axis of the water outlet connector. This makes it more intuitive to determine the current water outlet angle of the water outlet connector simply by looking at the positioning mark.

[0024] 4. The mounting base is also provided with a scale for cooperating with the positioning mark to indicate the water outlet angle of the water outlet connector. In this way, the water outlet angle of the current water outlet connector can be accurately known by the scale pointed by the positioning mark. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an assembly structure diagram of the base and the delivery pump of the utility model.

[0026] Figure 2 for Figure 1 Exploded diagram.

[0027] Figure 3 It is a structural diagram of the base of the utility model.

[0028] Figure 4 This is a schematic structural diagram of the pump casing of the utility model.

[0029] Figure 5 It is a structural schematic diagram of the pump cover of the utility model.

[0030] In the figure, 1-pump housing; 11-first cylindrical portion; 12-second cylindrical portion; 13-step portion; 14-first limiting portion; 15-positioning mark; 16-first connecting portion; 17-counterbore; 2-base; 3-mounting seat; 31-second limiting portion; 32-scale; 4-pump cover; 41-water outlet joint; 42-second connecting portion; 43-boss; 5-foot pad. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Pumps used in the liquid transportation industry typically connect external pipes to their inlet and outlet to increase the energy of the liquid from the inlet, thereby achieving liquid transportation. If the installation position and angle of the pump are not adjustable, the orientation of the pump's inlet and outlet cannot be adjusted. In some cases, due to installation environment restrictions (for example, the outlet of the installed pump is vertically upward, but the external pipe is arranged horizontally), the inlet and / or outlet of the pump cannot be connected directly to the external pipe and must be connected through some adapter pipes, which increases installation costs. In addition, installation in a small space is very inconvenient.

[0033] like Figure 1-Figure 5 The base of a delivery pump shown in FIG. 1 includes a pump housing 1 having a first cylindrical portion 11, a second cylindrical portion 12, a step 13 located at the junction of the first cylindrical portion 11 and the second cylindrical portion 12, and a plurality of first limiting portions 14 annularly distributed on the step 13. Specifically, the diameter of the first cylindrical portion 11 is smaller than the diameter of the second cylindrical portion 12 (e.g., the diameter difference between the two is 1-2 cm), thereby forming the step 13 at the junction of the first cylindrical portion 11 and the second cylindrical portion 12. In some practical applications, the pump housing 1 is made of a non-magnetic metal material (e.g., aluminum, aluminum alloy, etc.) or a non-magnetic plastic material with a certain strength (e.g., engineering plastic).

[0034] The base includes a base 2 and a mounting base 3 disposed on the base 2. The mounting base 3 is generally cylindrical with at least one end open, and the end of the open end is provided with a plurality of second stoppers 31 arranged in a ring shape, so that the first cylindrical portion 11 can be inserted into the mounting base 3 through the open end and cooperate with the first stoppers 14 to achieve relative positioning between the base and the delivery pump. In some practical applications, the base is made of a non-magnetic metal material (e.g., aluminum, aluminum alloy, etc.) or a non-magnetic plastic material with a certain strength (e.g., engineering plastic). In other practical applications, the base 2 has two mounting holes, each of which is provided with a mounting foot pad 5. In other practical applications, the first stoppers 14 are formed as a plurality of positioning bosses formed on the step portion 13, and the second stoppers 31 are formed as a plurality of positioning grooves formed on the end of the open end of the mounting base 3. Of course, within the scope of those skilled in the art, the first stoppers 14 are formed as a plurality of positioning grooves formed on the step portion 13, and the second stoppers 31 are formed as a plurality of positioning bosses formed on the end of the open end of the mounting base 3. In actual applications, in order to improve the applicability of the base, the mounting base 3 is designed as a cylindrical structure with both ends open. In this way, no matter how long the first cylindrical portion 11 is, it can be matched with the mounting base 3. Of course, as long as the length of the first cylindrical portion 11 is less than the length of the mounting base 3, even if the mounting base 3 is designed as a cylindrical structure with one end open, it can still be matched with the mounting base 3.

[0035] In this way, even if the delivery pump is rotated along its axis at a certain angle relative to the base, relative positioning can be achieved by utilizing the cooperation of several first limiting portions 14 distributed in a ring shape and several second limiting portions 31 distributed in a ring shape. The delivery pump can be rotated as needed before assembly to adjust the angle of its water outlet to adapt to different installation environments and have better applicability.

[0036] In some practical applications, the size of the root of the positioning boss is slightly smaller than the size of the head, and the size of the notch of the positioning groove is slightly smaller than the size of the bottom of the groove. In some practical applications, the size of the root of the positioning boss is about 1 mm smaller than the size of the head, and the size of the notch of the positioning groove is about 1 mm smaller than the size of the bottom of the groove; in this way, during installation, as long as a sufficient force is applied to make the positioning boss embedded in the positioning groove, the relative positioning of the base and the delivery pump can be achieved, and the two can be prevented from separating from each other, ensuring the stability of the product. In other practical applications, the number of the positioning bosses is less than the number of the positioning grooves. In this way, not all the parts on both sides of the notch of the positioning groove are subjected to force. The slight deformation of the parts on both sides of the notch of the positioning groove makes it easier for the positioning boss to be embedded in the positioning groove. In this embodiment, the number of the positioning bosses is 4 and they are evenly distributed, and the number of the positioning grooves is 24 and they are evenly distributed.

[0037] like Figure 1、 Figure 2 、 Figure 4 、 Figure 5 As shown in the figure, as a preferred embodiment of this embodiment, the delivery pump further includes a pump cover 4 mounted on the end of the pump housing 1. A water outlet connector 41 is provided on the pump cover 4, the axis of which is parallel to the end face of the pump cover 4. A positioning mark 15 is provided on the sidewall of the pump housing 1, and the radial line segment from the positioning mark to the axis of the pump housing 1 is parallel to the axis of the water outlet connector 41. This makes it more intuitive to determine the current water outlet angle of the water outlet connector 41 simply by looking at the positioning mark 15. In some practical applications, the pump housing 1 is evenly provided with four first connecting portions 16 (in this embodiment, the four first connecting portions 16 are evenly distributed on the outer circumference of the second cylindrical portion), and countersunk holes 17 are formed on the end faces of any three of the connecting portions 16; the pump cover 4 is provided with four second connecting portions 42 that cooperate with the first connecting portions 16, and three of the second connecting portions 42 are formed with protrusions 43 that adapt to the countersunk holes 17; in this way, the cooperation between the protrusions 43 and the countersunk holes 17 is used to achieve foolproofing, ensuring that after the pump cover 4 is installed on the pump housing 1, the radial line segment from the positioning mark 15 to the axis of the pump housing 1 is parallel to the axis of the water outlet joint 41. The first connecting portion 16 and the second connecting portion 42 are connected by bolts. Specifically, one end of the bolt passes through the through hole on the second connecting portion 42 and is threadedly connected to the first connecting portion 16.

[0038] In some practical applications, the mounting base 3 is further provided with a scale 32 for cooperating with the positioning mark 15 to indicate the water outlet angle of the water outlet connector 41. Thus, the current water outlet angle of the water outlet connector 41 can be accurately determined by the scale indicated by the positioning mark 15. In some practical applications, the scale 32 is located on the end surface of the mounting base 3 away from the second limiting portion 31. When the axis of the water outlet connector 41 is perpendicular to the bottom surface of the base, and the water outlet end of the water outlet connector 41 is facing upward, the scale value indicated by the positioning mark 15 is 0, and the radial line segment from the scale value 0 to the axis of the mounting base 3 is perpendicular to the bottom surface of the base.

[0039] During actual use, the first step is to fix the base; the second step is for the staff to determine the orientation of the water outlet connector 41 according to the position and orientation of the external pipe of the water outlet connector 41. Assuming that the external pipe of the water outlet connector 41 is parallel to the bottom surface of the base, it is necessary to adjust the orientation of the water outlet connector 41 to be parallel to the bottom surface of the base for easy installation; the third step is for the staff to make the positioning mark 15 point to the scale with a scale value of 90 based on the coordination of the positioning mark 15 and the scale 32, and the water outlet end of the water outlet connector 41 is opposite to the external pipe; the fourth step is for the staff to control the delivery pump to move along its axis relative to the base so that the positioning boss is embedded in the positioning groove to achieve the relative positioning of the base and the delivery pump.

[0040] Many specific details are set forth in the above description to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed above.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

Claims

1. A base for a delivery pump, characterized in that: The delivery pump comprises a pump housing (1), the pump housing (1) having a first cylindrical portion (11), a second cylindrical portion (12), a step portion (13) located at the junction of the first cylindrical portion (11) and the second cylindrical portion (12), and a plurality of first limiting portions (14) distributed in an annular shape on the step portion (13); The base comprises: Base (2); The mounting seat (3) is arranged on the base (2); it is basically a cylindrical structure with at least one end open, and the end of the open end is provided with a plurality of second limiting portions (31) distributed in a ring shape, so that the first cylindrical portion (11) can be embedded in the mounting seat (3) through the open end and then cooperate with the first limiting portion (14) to achieve relative positioning of the base and the delivery pump.

2. The base for the delivery pump according to claim 1, characterized in that: The first limiting portion (14) is a plurality of positioning bosses formed on the step portion (13), and the second limiting portion (31) is a plurality of positioning grooves formed at the open end of the mounting seat (3); or the first limiting portion (14) is a plurality of positioning grooves formed on the step portion (13), and the second limiting portion (31) is a plurality of positioning bosses formed at the open end of the mounting seat (3).

3. The base for the delivery pump according to claim 2, characterized in that: The size of the root of the positioning boss is slightly smaller than that of the head, and the size of the notch of the positioning groove is slightly smaller than that of the groove bottom.

4. The base for the delivery pump according to claim 3, characterized in that: The number of the positioning bosses is smaller than the number of the positioning grooves.

5. The base for the delivery pump according to claim 4, characterized in that: The number of the positioning bosses is 4 and they are evenly distributed, and the number of the positioning grooves is 24 and they are evenly distributed.

6. The base for a delivery pump according to claim 1, characterized in that: The delivery pump further comprises a pump cover (4) mounted on the end of the pump housing (1); The pump cover (4) is provided with a water outlet joint (41), the axis of which is parallel to the end face of the pump cover (4); a positioning mark (15) is provided on the side wall of the pump housing (1), and a radial line segment from the positioning mark to the axis of the pump housing (1) is parallel to the axis of the water outlet joint (41); The mounting seat (3) is also provided with a scale (32) for cooperating with the positioning mark (15) to indicate the water outlet angle of the water outlet connector (41).

7. The base for a delivery pump according to claim 1, characterized in that: The base (2) is also provided with a mounting pad (5).

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