Small horizontal water pump shell

Abstract

The utility model provides a small horizontal water pump shell, and belongs to the technical field of water pumps. The problem that an existing water pump is inconvenient to assemble is solved. The small horizontal water pump shell comprises a body with a pump cavity, a water inlet and a water outlet are formed in the front side and the top of the body respectively, an opening allowing a water pump impeller to stretch into the pump cavity is formed in the rear side of the body, the body is roughly square, a handle roughly in an inverted-U shape is arranged above the body, and the body is sleeved with the handle. Long-strip-shaped bases are integrally formed on the lower sides of the two ends of the handle, the bases are horizontally arranged, the bases are lower than the body, the length of the bases extends in the axial direction of the opening, and the two bases are arranged in parallel in the width direction of the bases. The middle parts of the two ends of the handle are matched with the body in shape and size, the handle and the body are of an integrated structure, and the middle parts of the two ends of the handle are attached to the outer side surface of the body. The problem that the pump shell of the small horizontal water pump is inconvenient to assemble is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, and relates to a small horizontal water pump, in particular to a pump housing of a small horizontal water pump. Background Art

[0002] A horizontal water pump is a water pump placed horizontally, whose transmission shaft is in a horizontal position with respect to the ground, and the input axis and the output axis are generally in the same plane.

[0003] An existing horizontal water pump, such as a horizontal centrifugal pump (application number: 202221656510.0) disclosed in the Chinese patent database, includes a base, and a pump head and a motor that are both fixed on the base and arranged front and back. The motor includes a front end cover fixedly connected to the pump head. An integrally formed connecting frame extends upward from the upper side of the front end cover. There are two connecting frames and they are symmetrically arranged left and right along the center of the front end cover. The top surface of the connecting frame is a horizontally arranged supporting plane. A strip-shaped handle is arranged above the connecting frame. Both ends of the handle are respectively pressed on the supporting plane, and both ends of the handle are fixedly connected to the two connecting frames respectively. A threaded hole two is vertically penetrated through the supporting plane. Through holes two are correspondingly arranged at both ends of the handle. A screw two is arranged in each through hole two. The head of the screw two presses tightly on the handle, and the rod portion of the screw two is screwed into the corresponding threaded hole two.

[0004] In the above horizontal water pump, the pump head and the motor are respectively fixedly connected to the base through multiple screws, and the handle is fixedly connected to the front end cover through two screws. The overall assembly steps are more, and the assembly is relatively cumbersome. Summary of the Utility Model

[0005] The purpose of the present utility model is to propose a pump housing of a small horizontal water pump with simplified assembly in view of the above problems existing in the prior art.

[0006] The purpose of the present utility model can be achieved by the following technical solutions: A pump housing of a small horizontal water pump includes a body with a pump cavity. An inlet and an outlet are respectively arranged on the front side and the top of the body. An opening for the water pump impeller to extend into the pump cavity is arranged on the rear side of the body. The characteristic is that the body is generally square-shaped. A handle generally in an inverted U shape is arranged above the body, and the handle is sleeved outside the body. At the lower sides of both ends of the handle, integrally formed strip-shaped bases are arranged. The bases are horizontally arranged, and the positions of the bases are lower than the body. The length of the bases extends along the axial direction of the opening, and the two bases are arranged side by side along the width direction of the bases. The shapes and sizes of the middle parts of both ends of the handle match those of the body. The handle and the body are of an integral structure, and the middle parts of both ends of the handle are bonded and formed on the outer side surfaces of the body.

[0007] The handle and the body are directly formed as a whole. In this way, during actual use, only the assembly of the motor and the body needs to be completed, which can greatly reduce the assembly steps and make the whole assembly simpler, having the advantages of convenient and easy assembly.

[0008] In the above-mentioned small horizontal water pump casing, the above-mentioned body and handle are integrally formed by plastic material through injection molding, so as to facilitate processing.

[0009] In the above-mentioned small horizontal water pump housing, triangular reinforcing ribs are formed between the lower side of the handle and the corresponding base, and the handle is located between the two reinforcing ribs. The addition of the reinforcing ribs makes the connection between the handle and the base more stable, so that the water pump is more stably positioned.

[0010] In the above-mentioned small horizontal water pump casing, bolt holes are vertically penetrated at both ends of the base to facilitate the installation and positioning of the water pump.

[0011] In the above-mentioned small horizontal water pump casing, the main body is composed of a square cylindrical casing and a volute formed in the casing, and the volute and the casing are coaxially arranged; the inner cavity of the volute is the above-mentioned pump cavity, the water inlet is arranged at the front side of the casing, the volute has a vertically arranged water outlet pipe, the upper end of the water outlet pipe extends out of the casing, and the upper end of the water outlet pipe is the above-mentioned water outlet; the above-mentioned opening is arranged at the rear side of the volute. The volute is hidden in the casing, which plays a protective role, effectively avoiding damage to the volute when the main body is hit by external force, and extending the service life.

[0012] In the above-mentioned small horizontal water pump casing, the volute extends backward from the opening position to form a connecting pipe, and an annular flange is formed on the outer wall of the rear end of the connecting pipe to facilitate connection and assembly with the motor.

[0013] Compared with the prior art, the pump casing of this small horizontal water pump has the following advantages:

[0014] 1. The handle and the body are directly formed into a whole, so that in actual use, only the motor and the body need to be assembled, which greatly reduces the assembly steps and makes the entire assembly simpler, with the advantages of convenient and easy assembly.

[0015] 2. The volute is hidden inside the shell, which plays a protective role and effectively avoids damage to the volute when the body is hit by external force, thus extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the pump casing of a small horizontal water pump.

[0017] Figure 2 It is a three-dimensional schematic diagram of the pump casing of a small horizontal water pump in another direction.

[0018] In the figure, 1, main body; 1a, water inlet; 1b, water outlet; 1c, opening; 1d, shell; 1e, volute; 1e1, water outlet pipe; 1f, connecting pipe; 1f1, annular flange; 2, handle; 3, base; 3a, bolt hole; 4, reinforcing rib. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present utility model, and in conjunction with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments. Embodiment 1

[0020] As Figure 1 shown, the pump housing of this small horizontal pump includes a body 1 with a pump chamber. The front side and the top of the body 1 are respectively provided with a water inlet 1a and a water outlet 1b, and both the water inlet 1a and the water outlet 1b communicate with the pump chamber. An opening 1c for the pump impeller to extend into the pump chamber is provided at the rear side of the body 1.

[0021] Specifically,

[0022] As Figure 1 and Figure 2 shown, the body 1 is generally square-shaped. A handle 2 approximately in an inverted U-shape is provided above the body 1, and the handle 2 is sleeved outside the body 1. At the lower sides of both ends of the handle 2, strip-shaped bases 3 are integrally formed. The bases 3 are horizontally arranged, and the positions of the bases 3 are lower than that of the body 1. The length of the base 3 extends along the axial direction of the opening 1c, and the two bases 3 are arranged side by side along the width direction of the base 3. The shapes and sizes of the middle parts of both ends of the handle 2 match those of the body 1. The handle 2 and the body 1 are of an integral structure, and the middle parts of both ends of the handle 2 are bonded and formed on the outer side surface of the body 1.

[0023] The handle 2 and the body 1 are directly formed as a whole. In this way, during actual use, only the assembly of the motor and the body 1 needs to be completed, which can greatly reduce the assembly steps and make the whole assembly simpler, having the advantages of convenient and easy assembly.

[0024] Preferably, the body 1 and the handle 2 are integrally formed by plastic materials and in an injection molding manner to make the processing more convenient.

[0025] Further explanation, triangular reinforcing ribs 4 are formed between the lower side of the handle 2 and the corresponding bases 3, and the handle 2 is located between the two reinforcing ribs 4. The addition of the reinforcing ribs 4 makes the connection between the handle 2 and the bases 3 more stable, thereby making the pump more stably positioned. Bolt holes 3a are vertically penetrated through both ends of the base 3, which is convenient for the installation and positioning of the pump.

[0026] In this embodiment, as Figure 1 and Figure 2As shown, the structure of the main body 1 is as follows: the main body 1 is composed of a square cylindrical shell 1d and a volute 1e formed in the shell 1d, and the volute 1e and the shell 1d are coaxially arranged. The handle 2 is sleeved on the shell 1d, and the middle parts of both ends of the handle 2 are both formed on the outer surface of the shell 1d. The inner cavity of the volute 1e is the above-mentioned pump cavity, and the water inlet 1a is arranged on the front side of the shell 1d. The volute 1e has a vertically arranged water outlet pipe 1e1, the upper end of the water outlet pipe 1e1 extends out of the shell 1d, and the upper end of the water outlet pipe 1e1 is the above-mentioned water outlet 1b. The volute 1e is hidden in the shell 1d, which plays a protective role, effectively avoiding damage to the volute 1e when the main body 1 is hit by external force, thereby extending the service life.

[0027] The opening 1c is arranged at the rear side of the volute 1e, and in the actual product, the volute 1e extends backward from the opening 1c to form a connecting pipe 1f, and an annular flange 1f1 is formed on the outer wall at the rear end of the connecting pipe 1f to facilitate connection and assembly with the motor. Embodiment 2

[0028] The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that the body 1 and the handle 2 are integrally formed of metal material by casting.

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A small horizontal water pump casing, comprising a body (1) having a pump cavity, the front side and top of the body (1) being provided with a water inlet (1a) and a water outlet (1b) respectively, the rear side of the body (1) being provided with an opening (1c) for a water pump impeller to extend into the pump cavity, characterized in that: The main body (1) is generally square in shape. A handle (2) that is generally inverted U-shaped is provided above the main body (1), and the handle (2) is sleeved outside the main body (1). At the lower sides of both ends of the handle (2), strip-shaped bases (3) are integrally formed. The bases (3) are horizontally arranged, and the positions of the bases (3) are lower than that of the main body (1). The length of the base (3) extends along the axial direction of the opening (1c), and the two bases (3) are arranged side by side along the width direction of the base (3). The shapes and sizes of the middle parts of both ends of the handle (2) match those of the main body (1). The handle (2) and the main body (1) are of an integral structure, and the middle parts of both ends of the handle (2) are bonded and formed on the outer side surface of the main body (1).

2. The small horizontal water pump casing according to claim 1, characterized in that: The above-mentioned main body (1) and handle (2) are integrally formed by plastic materials through an injection molding method.

3. The small horizontal water pump casing according to claim 2, characterized in that: Triangular reinforcing ribs (4) are formed between the lower side of the handle (2) and the corresponding base (3), and the handle (2) is located between the two reinforcing ribs (4).

4. The small horizontal water pump casing according to claim 1, 2 or 3, characterized in that: Bolt holes (3a) are vertically penetrated through both ends of the base (3).

5. The small horizontal water pump casing according to claim 1, characterized in that: The main body (1) is composed of a square cylindrical shell (1d) and a volute (1e) formed inside the shell (1d), and the volute (1e) and the shell (1d) are coaxially arranged. The inner cavity of the volute (1e) is the above-mentioned pump cavity. The water inlet (1a) is arranged on the front side of the shell (1d). The volute (1e) has a vertically arranged water outlet pipe (1e1). The upper end of the water outlet pipe (1e1) extends out of the shell (1d), and the upper port of the water outlet pipe (1e1) is the above-mentioned water outlet (1b). The above-mentioned opening (1c) is arranged on the rear side of the volute (1e).

6. The small horizontal water pump casing according to claim 5, characterized in that: The volute (1e) extends backward from the position of the opening (1c) to form a connecting pipe (1f), and an annular flange (1f1) is formed on the outer wall of the rear end of the connecting pipe (1f).

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