Connecting structure of pump body and base in booster pump

Abstract

The utility model provides a connecting structure of a pump body and a base in a booster pump, and belongs to the technical field of water pumps. The problem that an existing pump shell is complex in design is solved. A pump body comprises a pump shell and a pump cover arranged on the rear side of the pump shell, a front flange and a rear flange are formed on the outer wall of the pump shell and the outer wall of the pump cover respectively, and the front flange and the rear flange are attached to each other and fixedly connected through a circle of screws. The base comprises a strip-shaped bottom plate, the connecting structure comprises a supporting plate vertically formed at the front end of the bottom plate, a circumferential face is arranged on the outer surface of the pump shell, the front flange is arranged on the circumferential face, an arc groove is formed in the supporting plate in the axial direction of the front flange in a penetrating mode, and the inner wall of the arc groove is tightly attached to the lower side of the circumferential face. The rear side of the supporting plate is pressed on the front flange, a plurality of connecting holes are formed in the supporting plate and evenly distributed in the circumferential direction of the front flange, and a screw is arranged in each connecting hole in a penetrating mode so that the supporting plate and the front flange can be fixed together. The design of the pump shell can be simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, and relates to a booster pump, in particular to a connection structure between a pump body and a base in a booster pump. Background Technique

[0002] A booster pump is a device used to increase the pressure of liquids or gases and is commonly found in various industrial, agricultural, construction, and household applications. It increases the pressure of the fluid through mechanical energy (usually driven by an electric motor) for use in systems or processes that require higher pressure.

[0003] An existing booster pump, such as a constant-pressure tangent pump (application number: 201320218415.7) disclosed in the Chinese patent database, includes: a base; a pump body installed on the base, which has an impeller chamber defined by a housing. An impeller is provided in the impeller chamber. The shaft of the impeller is rotatably horizontally installed on the pump cover that closes the impeller chamber. A mechanical seal is provided between the shaft and the pump cover. The impeller chamber has an inlet end that communicates with it and is horizontally arranged, and an outlet end that communicates with it and is vertically arranged. A drain cavity is provided at the lower part of the impeller chamber, and a drain cock is provided in the drain cavity; a driving motor installed on the base, and its power output shaft is connected to the impeller of the pump body.

[0004] In the above-mentioned tangent pump, the housing is fixed to the base by setting support feet on its lower side, and the support feet and the housing are generally of an integral structure, which will complicate the housing structure and is not conducive to design and processing. Summary of the Utility Model

[0005] The purpose of the present utility model is to address the above problems existing in the prior art and propose a connection structure between the pump body and the base in a booster pump that can simplify the pump housing structure.

[0006] The purpose of the present utility model can be achieved by the following technical solutions: A connection structure between the pump body and the base in a booster pump. The pump body includes a pump housing and a pump cover provided at the rear of the pump housing. Front flanges and rear flanges are respectively formed on the outer walls of the pump housing and the pump cover. The front flange and the rear flange are abutted against each other and fixed together by a circle of screws; the base includes a strip-shaped bottom plate, and the length of the bottom plate extends along the axial direction of the front flange. It is characterized in that this connection structure includes a support plate vertically formed at the front end of the bottom plate. The outer surface of the pump housing has a circumferential surface coaxial with the front flange, and the above-mentioned front flange is arranged on the circumferential surface. The support plate is axially penetrated with an arc groove along the front flange, and the inner wall of the arc groove abuts against the lower side of the circumferential surface; the rear side of the support plate presses against the front end face of the front flange. The support plate is provided with a plurality of connection holes axially penetrating through the pump housing. The plurality of connection holes are evenly distributed along the circumferential direction of the front flange. Each connection hole is penetrated with one of the above-mentioned screws to fix the support plate and the front flange together.

[0007] A support plate for vertically supporting the pump casing is vertically arranged on the bottom plate, and the support plate is directly fixedly connected to the front flange. In this way, the existing pump casing feet can be cancelled in actual design to simplify the pump casing structure. At the same time, the support plate is also fixedly connected to the pump casing by screws for fixedly connecting the pump casing and the pump cover, so that the through holes on the front flange are simultaneously used to connect the support plate and the rear flange, further simplifying the pump casing structure and facilitating the design and processing of the pump casing.

[0008] In the connection structure between the pump body and the base of the above-mentioned booster pump, triangular reinforcing ribs are formed between the above-mentioned bottom plate and the support plate. There are two reinforcing ribs and they are distributed along the width direction of the bottom plate, and the front flange is located between the two reinforcing ribs. The reinforcing ribs are provided to effectively strengthen the strength of the support plate, so that the pump body obtains a more stable and reliable support.

[0009] In the connection structure between the pump body and the base of the above-mentioned booster pump, a strip-shaped support platform is formed at the rear end of the bottom plate, and the length of the support platform extends along the width direction of the bottom plate; the cross-section of the support platform is L-shaped, and the support platform is composed of a horizontally arranged positioning plate and a connecting plate for connecting the positioning plate and the bottom plate. The motor of the booster pump is horizontally fixed on the positioning plate. There is a gap between the positioning plate for installing the motor and the bottom plate, and the gap is used for buffering to reduce the vibration during the operation of the motor.

[0010] In the connection structure between the pump body and the base of the above-mentioned booster pump, an elastic member for supporting the positioning plate is also provided on the bottom plate to better buffer the motor vibration by using the elasticity of the elastic member.

[0011] In the connection structure between the pump body and the base of the above-mentioned booster pump, the elastic member is a rubber shock absorber. Both ends of the rubber shock absorber are vertically arranged screws, and vertically threaded holes are provided on both the bottom plate and the positioning plate, and the two screws are respectively screwed into the two threaded holes.

[0012] As another solution, in the connection structure between the pump body and the base of the above-mentioned booster pump, the elastic member is a vertically arranged spring, and both ends of the spring act on the bottom plate and the positioning plate respectively.

[0013] In the connection structure between the pump body and the base of the above-mentioned booster pump, the front side of the positioning plate is bent downward to form a vertically arranged baffle to enhance the strength of the positioning plate.

[0014] In the connection structure between the pump body and the base of the above-mentioned booster pump, a plurality of bolt holes are vertically penetrated through the bottom plate to facilitate the overall installation and positioning of the base.

[0015] In the connection structure between the pump body and the base of the above-mentioned booster pump, the base is an integral structure to effectively strengthen the strength of the base itself.

[0016] Compared with the prior art, the connection structure between the pump body and the base of this booster pump has the following advantages:

[0017] 1. A support plate for vertically supporting the pump housing is provided on the bottom plate, and the support plate is directly fixedly connected to the front flange. In this way, the existing pump housing feet can be cancelled during actual design to simplify the pump housing structure. At the same time, the support plate is also fixedly connected to the pump housing by screws for fixedly connecting the pump housing and the pump cover, so that the through holes on the front flange are simultaneously used to connect the support plate and the rear flange, further simplifying the pump housing structure and facilitating the design and processing of the pump housing.

[0018] 2. There is a gap between the positioning plate for installing the motor and the bottom plate, and an elastic member for supporting the positioning plate is provided in the gap, which can effectively buffer the vibration during the operation of the motor. Description of the Drawings

[0019] Figure 1 It is a three-dimensional schematic diagram of the booster pump.

[0020] Figure 2 It is a cross-sectional schematic diagram of the booster pump.

[0021] Figure 3 It is a three-dimensional schematic diagram of the base.

[0022] In the figure, 1. Pump housing; 1a. Front flange; 1b. Circumferential surface; 2. Pump cover; 2a. Rear flange; 3. Screw; 4. Base; 4a. Bottom plate; 4b. Support plate; 4c. Arc groove; 4d. Connection hole; 4e. Reinforcing rib; 4f. Support platform; 4f1. Positioning plate; 4f2. Connecting plate; 4g. Baffle; 4h. Bolt hole; 5. Motor; 6. Rubber shock absorber. Detailed Implementation Manner

[0023] The following are specific embodiments of the present invention and in combination with the drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments. Embodiment 1

[0024] As Figure 1 shown, in the connection structure between the pump body and the base in the booster pump,

[0025] The pump body includes a pump housing 1 and a pump cover 2 provided at the rear of the pump housing 1. The outer walls of the pump housing 1 and the pump cover 2 are respectively formed with a front flange 1a and a rear flange 2a. Both the front flange 1a and the rear flange 2a are annular, and the front flange 1a and the rear flange 2a are abutted and fixedly connected by a circle of screws 3. In actual products, the front flange 1a and the pump housing 1 are of an integral structure; the rear flange 2a and the pump cover 2 are of an integral structure.

[0026] The base 4 is of an integral structure, and the base 4 includes a strip-shaped bottom plate 4a, and the length of the bottom plate 4a extends along the axial direction of the front flange 1a.

[0027] As Figures 1 to 3As shown in the figure, the connection structure between the pump body and the base of the booster pump includes a support plate 4b vertically formed at the front end of the bottom plate 4a. There is a circumferential surface 1b on the outer surface of the pump shell 1 that is coaxial with the front flange 1a, and the front flange 1a is arranged on the circumferential surface 1b. The support plate 4b is axially penetrated with an arc groove 4c along the front flange 1a, and the inner wall of the arc groove 4c is in close contact with the lower side of the circumferential surface 1b. The rear side of the support plate 4b presses against the front end face of the front flange 1a. A plurality of connection holes 4d axially penetrating the pump shell 1 are provided on the support plate 4b. The plurality of connection holes 4d are evenly distributed along the circumference of the front flange 1a. A screw 3 as described above is inserted into each connection hole 4d to fix the support plate 4b and the front flange 1a together. In an actual product, the number of connection holes 4d is 3.

[0028] A support plate 4b for vertically supporting the pump shell 1 is vertically arranged on the bottom plate 4a, and the support plate 4b is directly fixed to the front flange 1a. In this way, the existing feet of the pump shell 1 can be cancelled in actual design to simplify the structure of the pump shell 1. At the same time, the support plate 4b is also fixed to the pump shell 1 by the screw 3 for fixing the pump shell 1 and the pump cover 2, so that the through holes on the front flange 1a are simultaneously used for connecting the support plate 4b and the rear flange 2a, further simplifying the structure of the pump shell 1 and facilitating the design and processing of the pump shell 1.

[0029] Further explanation, as Figure 3 shown, a triangular reinforcing rib 4e is formed between the bottom plate 4a and the support plate 4b. There are two reinforcing ribs 4e distributed along the width direction of the bottom plate 4a, and the front flange 1a is located between the two reinforcing ribs 4e. The arrangement of the reinforcing ribs 4e effectively strengthens the strength of the support plate 4b, enabling the pump body to obtain a more stable and reliable support.

[0030] As Figure 2 and Figure 3 shown, a strip-shaped support platform 4f is formed at the rear end of the bottom plate 4a, and the length of the support platform 4f extends along the width direction of the bottom plate 4a. The cross-section of the support platform 4f is L-shaped. The support platform 4f is composed of a horizontally arranged positioning plate 4f1 and a connecting plate 4f2 for connecting the positioning plate 4f1 and the bottom plate 4a. That is, at this time, the connecting plate 4f2 is between the positioning plate 4f1 and the bottom plate 4a. The motor 5 of the booster pump is horizontally fixed on the positioning plate 4f1. There is a gap between the positioning plate 4f1 for installing the motor 5 and the bottom plate 4a, and the gap is used for buffering to reduce the vibration during the operation of the motor 5. Further explanation, an elastic member for supporting the positioning plate 4f1 is also provided on the bottom plate 4a to better buffer the vibration of the motor 5 by using the elasticity of the elastic member. The front side of the positioning plate 4f1 is bent downward to form a vertically arranged baffle 4g to enhance the strength of the positioning plate 4f1.

[0031] In this embodiment, the elastic member is a rubber shock absorber 6. The rubber shock absorber 6 is an existing product. Both ends of the rubber shock absorber 6 are vertically arranged screws. Threaded holes are vertically provided on both the bottom plate 4a and the positioning plate 4f1, and the two screws are respectively screwed into the two threaded holes. Preferably, there are two rubber shock absorbers 6 distributed along the width direction of the bottom plate 4a. At this time, two of the above-mentioned threaded holes are provided on both the bottom plate 4a and the positioning plate 4f1.

[0032] In the actual product, a plurality of bolt holes 4h also vertically penetrate through the bottom plate 4a, facilitating the overall installation and positioning of the base 4. Embodiment Two

[0033] The structure and principle of this Embodiment Two are basically the same as those of Embodiment One. The difference lies in that the elastic member is a vertically arranged spring, and both ends of the spring act on the bottom plate 4a and the positioning plate 4f1 respectively.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to substitute them, but they will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. The connection structure between the pump body and the base in a booster pump. The pump body includes a pump casing (1) and a pump cover (2) arranged at the rear side of the pump casing (1). Front flanges (1a) and rear flanges (2a) are respectively formed on the outer walls of the pump casing (1) and the pump cover (2). The front flange (1a) and the rear flange (2a) are abutted against each other and fixedly connected by a circle of screws (3); the base (4) includes a strip-shaped bottom plate (4a), and the length of the bottom plate (4a) extends along the axial direction of the front flange (1a). It is characterized in that, This connection structure includes a support plate (4b) vertically formed at the front end of the bottom plate (4a). There is a circumferential surface (1b) coaxial with the front flange (1a) on the outer surface of the pump casing (1), and the front flange (1a) is arranged on the circumferential surface (1b). The support plate (4b) is axially penetrated with an arc groove (4c) along the front flange (1a), and the inner wall of the arc groove (4c) is in close contact with the lower side of the circumferential surface (1b); the rear side of the support plate (4b) presses against the front end face of the front flange (1a). The support plate (4b) is provided with a plurality of connection holes (4d) axially penetrating through the pump casing (1). The plurality of connection holes (4d) are evenly distributed circumferentially along the front flange (1a). A screw (3) is inserted into each connection hole (4d) to fix the support plate (4b) and the front flange (1a) together.

2. The connection structure between the pump body and the base in the booster pump according to claim 1, characterized in that, A triangular reinforcing rib (4e) is formed between the bottom plate (4a) and the support plate (4b). There are two reinforcing ribs (4e) distributed along the width direction of the bottom plate (4a), and the front flange (1a) is located between the two reinforcing ribs (4e).

3. The connection structure between the pump body and the base in the booster pump according to claim 1 or 2, characterized in that, A strip-shaped support platform (4f) is formed at the rear end of the bottom plate (4a), and the length of the support platform (4f) extends along the width direction of the bottom plate (4a); the cross-section of the support platform (4f) is L-shaped. The support platform (4f) is composed of a horizontally arranged positioning plate (4f1) and a connecting plate (4f2) for connecting the positioning plate (4f1) and the bottom plate (4a). The motor (5) of the booster pump is horizontally fixed on the positioning plate (4f1).

4. The connection structure between the pump body and the base of the booster pump according to claim 3, characterized in that, The bottom plate (4a) is also provided with an elastic member for supporting the positioning plate (4f1).

5. The connection structure between the pump body and the base in the booster pump according to claim 4, characterized in that, The elastic member is a rubber shock absorber (6). Both ends of the rubber shock absorber (6) are vertically arranged screw rods. Vertically threaded holes are provided on both the bottom plate (4a) and the positioning plate (4f1), and the two screw rods are respectively screwed into the two threaded holes.

6. The connection structure between the pump body and the base in the booster pump according to claim 4, characterized in that, The elastic member is a vertically arranged spring, and both ends of the spring act on the bottom plate (4a) and the positioning plate (4f1) respectively.

7. The connection structure between the pump body and the base in the booster pump according to claim 3, characterized in that, The front side of the positioning plate (4f1) is bent downward to form a vertically arranged baffle (4g).

8. The connection structure between the pump body and the base in the booster pump according to claim 1, characterized in that, A plurality of bolt holes (4h) vertically penetrate through the bottom plate (4a).

9. The connection structure between the pump body and the base in the booster pump according to claim 1, characterized in that, The base (4) is an integral structure.

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