Double-water-outlet water pump volute assembly

Abstract

The utility model provides a double-water-outlet water pump volute assembly, and belongs to the technical field of water pumps. The problem that an existing water pump is large in occupied space is solved. The double-water-outlet water pump volute assembly comprises a volute body, an upper water outlet pipe and a lower water outlet pipe are horizontally formed at the top and the bottom of the volute body respectively, a water outlet is formed in the bottom wall of the lower water outlet pipe, a sealing cock is screwed in the water outlet, the lower water outlet pipe is in a circular pipe shape, a circular sealing plate is vertically arranged in the lower water outlet pipe, and an operating rod is arranged on the bottom wall of the sealing plate. A through hole penetrates through the sealing cock, and the lower end of the operating rod penetrates through the through hole; the operating rod is in running fit with the sealing cock, the operating rod is rotated to enable the side wall of the sealing plate to be tightly attached to the inner wall of the lower water outlet pipe so as to cut off the lower water outlet pipe, a threaded hole penetrates through the side wall of the sealing cock in the radial direction and is located below the sealing ring, a bolt is screwed in the threaded hole, and the rod portion of the bolt can be tightly pressed on the operating rod. By means of the double-water-outlet water pump volute assembly, occupied space can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps and relates to a double-outlet water pump, in particular to a volute component of a double-outlet water pump. Background Art

[0002] A double-outlet water pump, that is, a water pump with two water outlets, can pump two water flows at the same time and has higher pumping efficiency and capacity.

[0003] An existing dual-outlet water pump, such as a dual-outlet water pump disclosed in the China Patent Library (application number: 201911365396.9), includes: a pump casing; a fluid chamber, the fluid chamber is arranged in the pump casing; a water wheel assembly, the water wheel assembly is installed in the fluid chamber; a water inlet, the water inlet is arranged at the bottom end of the pump casing, and the water inlet is connected to the fluid chamber; two water outlets, the two water outlets are arranged opposite to each other at the side ends of the pump casing, and the water outlets are connected to the fluid chamber; a drive motor, the drive motor is connected to the top of the pump casing, and the output end of the drive motor is connected to the water wheel assembly.

[0004] Currently, in actual use, a special working condition is encountered: one water outlet continuously supplies water, and the other water outlet selectively supplies water. For this, the current dual-outlet water pump generally connects a control valve at the selective water supply outlet to realize the opening and closing of the water outlet. However, the setting of the control valve will increase the length of the pump casing and take up more space. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and to propose a double-outlet water pump volute assembly that can reduce space occupation.

[0006] The objectives of the utility model can be achieved through the following technical solutions: a double-outlet water pump volute assembly, including a volute body, an upper water outlet pipe and a lower water outlet pipe are horizontally formed on the top and bottom of the volute body respectively, a drain outlet is vertically penetrated on the bottom wall of the lower water outlet pipe, and a sealing plug is screwed in the drain outlet, characterized in that the lower water outlet pipe is in the shape of a circular tube, a circular sealing plate matching it is vertically provided in the lower water outlet pipe, a vertically arranged operating rod is provided on the bottom wall of the sealing plate, a through hole is vertically penetrated on the sealing plug, and the lower end of the operating rod is provided through the through hole; the operating rod and the sealing plug are rotated to cooperate, and rotating the operating rod can make the side wall of the sealing plate close to the inner wall of the lower water outlet pipe to cut off the lower water outlet pipe; the operating rod forms a seal between the sealing ring and the inner wall of the through hole, and a threaded hole is radially penetrated on the side wall of the sealing plug, the threaded hole is below the sealing ring, a bolt is screwed in the threaded hole, and the bolt rod can be tightly pressed on the operating rod.

[0007] During use, when it is necessary to cut off the lower water outlet pipe, the operating lever is rotated to make the side wall of the sealing plate close to the inner wall of the lower water outlet pipe, and then the bolt is screwed inward to limit the operating lever to ensure that the lower water outlet pipe is stably cut off; when it is necessary to open the lower water outlet pipe, the bolt is screwed outward to separate it from the operating lever, and then the operating lever is rotated to separate the side wall of the sealing plate and the inner wall of the lower water outlet pipe, and then the bolt is screwed inward again to limit the operating lever again to ensure that the lower water outlet pipe remains open.

[0008] The opening and closing of the lower water outlet pipe can be controlled by rotating the sealing plate arranged in the lower water outlet pipe, and the operating rod for operating the rotation of the sealing plate is basically in the sealing plug, which can greatly reduce the distance between the various components, make the overall structure more compact, and effectively reduce space occupancy.

[0009] In the above-mentioned double-outlet water pump volute assembly, the operating rod is in the shape of a round rod, the through hole is a round hole matching the operating rod, and the outer circumferential surface of the operating rod is attached to the inner circumferential surface of the round hole, so that a stable and reliable circumferential fit is formed between the operating rod and the sealing plug, ensuring stable and precise rotation of the sealing plate.

[0010] In the aforementioned dual-discharge water pump volute assembly, a vertical strip groove is formed on the outer wall of the operating lever. The strip groove has an arc-shaped cross section with a central angle of 90 degrees. The shank of the bolt is located in the strip groove and can press against the bottom surface of the strip groove. Rotating the operating lever can make the two end surfaces of the strip groove contact the bolt shank to control the opening or closing of the lower water outlet pipe. The strip grooves on the outer wall of the operating lever, with the two end surfaces respectively abutting against the bolt shank, allow the sealing plate to be rotated into place at one time, facilitating operation.

[0011] In the above-mentioned double-outlet water pump volute assembly, the lower end of the strip groove is open, which not only facilitates the processing of the strip groove, but also leaves the operating rod unobstructed under the bolt. In this way, the sealing plug can be unscrewed to drain the water without unscrewing the bolt, which is convenient for use.

[0012] In the aforementioned dual-discharge water pump volute assembly, the sealing plate comprises an O-ring and a circular plate body. The operating lever is mounted on the plate body. An annular groove is defined on the outer surface of the plate body, within which the O-ring resides. The outer circumference of the O-ring is capable of sealing against the inner wall of the lower discharge pipe. The sealing plate facilitates contact between the O-ring and the inner wall of the lower discharge pipe, thereby shutting off the lower discharge pipe. This not only enhances the sealing effect but also prolongs the service life of the plate body.

[0013] In the dual-discharge water pump volute assembly, there are two annular grooves distributed along the axial direction of the sealing plate. Each annular groove is provided with the aforementioned O-ring. When the lower water outlet pipe is cut off, the drain port is located between the two O-rings. This design allows for more stable cutoff of the lower water outlet pipe.

[0014] In the above-mentioned double-outlet water pump volute assembly, an annular positioning groove is further provided on the outer side wall of the operating rod, the above-mentioned sealing ring is located in the positioning groove, and the outer side surface of the sealing ring contacts and seals with the inner wall of the through hole.

[0015] In the above-mentioned double-outlet water pump volute assembly, the operating rod and the plate body are an integrated structure to enhance the connection strength between the two, thereby driving the plate body to rotate more stably.

[0016] Compared with the existing technology, this double-outlet water pump volute assembly has the following advantages:

[0017] 1. The opening and closing of the lower water outlet pipe can be controlled by rotating the sealing plate arranged in the lower water outlet pipe, and the operating rod for operating the rotation of the sealing plate is basically in the sealing cock, which can greatly reduce the distance between the various components, make the overall structure more compact, and effectively reduce space occupancy.

[0018] 2. Strip grooves are provided on the outer side wall of the operating rod, the two end surfaces of which can respectively abut against the bolt rod, so that the sealing plate can be rotated into place at one time, which is convenient for operation.

[0019] 3. The lower end of the strip groove is open, which not only facilitates the processing of the strip groove, but also leaves the operating rod unobstructed under the bolt. In this way, the sealing plug can be unscrewed to drain the water without unscrewing the bolt, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the volute assembly of the double-outlet water pump.

[0021] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0022] Figure 3 It is a cross-sectional schematic diagram of the operating lever.

[0023] In the figure, 1, volute body; 1a, upper water outlet pipe; 1b, lower water outlet pipe; 2, sealing plug; 3, sealing plate; 3a, operating rod; 3a1, strip groove; 3b, plate body; 3c, O-ring; 4, sealing ring; 5, bolt. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figure 1As shown, the dual-outlet water pump volute assembly includes a volute body 1, with an upper outlet pipe 1a and a lower outlet pipe 1b horizontally formed on the top and bottom of the volute body 1, respectively. The inner holes of the upper outlet pipe 1a and the lower outlet pipe 1b are both the outlet holes of the volute body 1. In actual products, the upper outlet pipe 1a and the lower outlet pipe 1b are both circular tubes.

[0026] in,

[0027] A drain port is vertically penetrated on the bottom wall of the lower water outlet pipe 1b, and a sealing cock 2 is screwed into the drain port. In actual products, a rubber ring is further provided between the sealing cock 2 and the drain port to enhance the sealing effect of the drain port.

[0028] like Figure 1 and Figure 2 As shown, a matching circular sealing plate 3 is vertically installed within the lower water outlet pipe 1b. A vertically installed operating rod 3a is located on the bottom wall of the sealing plate 3. A corresponding vertical through-hole is provided through the sealing stopper 2, with the lower end of the operating rod 3a extending through the through-hole. The operating rod 3a and the sealing stopper 2 are rotatably engaged, and rotating the operating rod 3a causes the side wall of the sealing plate 3 to contact the inner wall of the lower water outlet pipe 1b, thereby shutting off the lower water outlet pipe 1b. The operating rod 3a forms a seal with the inner wall of the through-hole via a sealing ring 4. A threaded hole is radially extended through the side wall of the sealing stopper 2, located below the sealing ring 4. A bolt 5 is threaded into the threaded hole, and the shank of the bolt 5 can press tightly against the operating rod 3a to restrict its rotation.

[0029] During use, when it is necessary to cut off the lower water outlet pipe 1b, the operating lever 3a is rotated to make the side wall of the sealing plate 3 close to the inner wall of the lower water outlet pipe 1b, and then the bolt 5 is screwed inward to limit the operating lever 3a to ensure that the lower water outlet pipe 1b is stably cut off; when it is necessary to open the lower water outlet pipe 1b, the bolt 5 is screwed outward to separate it from the operating lever 3a, and then the operating lever 3a is rotated to separate the side wall of the sealing plate 3 and the inner wall of the lower water outlet pipe 1b, and then the bolt 5 is screwed inward again to limit the operating lever 3a again to ensure that the lower water outlet pipe 1b remains open.

[0030] The opening and closing of the lower water outlet pipe 1b can be controlled by rotating the sealing plate 3 arranged in the lower water outlet pipe 1b, and the operating rod 3a for operating the rotation of the sealing plate 3 is basically in the sealing plug 2, which can greatly reduce the distance between the various components, make the overall structure more compact, and effectively reduce space occupancy.

[0031] In this embodiment,

[0032] The operating rod 3a and the sealing plug 2 cooperate as follows: the operating rod 3a is in the shape of a round rod, and the through hole is a circular hole that matches the operating rod 3a. The outer circumference of the operating rod 3a is in contact with the inner circumference of the circular hole. This creates a stable and reliable circumferential fit between the operating rod 3a and the sealing plug 2, ensuring stable and precise rotation of the sealing plate 3. Of course, the alternative of "rotatingly engaging the operating rod 3a with the sealing plug 2 via a bearing" is also acceptable.

[0033] The sealing ring 4 is installed as follows: an annular positioning groove is provided on the outer wall of the operating rod 3a, and the positioning groove and the operating rod 3a are coaxially arranged. The sealing ring 4 is located in the positioning groove, and the outer side of the sealing ring 4 contacts and seals the inner wall of the through hole.

[0034] The sealing plate 3 is constructed as follows: It includes an O-ring 3c and a circular plate body 3b, with the operating rod 3a mounted on the plate body 3b. The operating rod 3a and plate body 3b are preferably integrally formed to enhance the connection strength. An annular groove is defined on the outer surface of the plate body 3b, coaxially arranged with the plate body 3b. The O-ring 3c is positioned within the groove, and its outer circumference is capable of sealing against the inner wall of the lower outlet pipe 1b. This facilitates contact between the O-ring 3c and the inner wall of the lower outlet pipe 1b, thereby terminating the lower outlet pipe 1b. This not only enhances the sealing effect but also extends its life. Furthermore, two annular grooves are located axially along the sealing plate 3, each containing an O-ring 3c. When the lower outlet pipe 1b is interrupted, the drain outlet is positioned between the two O-rings 3c. This design ensures more stable interruption of the lower outlet pipe 1b.

[0035] like Figure 2 and Figure 3 As shown, the outer wall of the operating lever 3a is provided with a vertical groove 3a1. The cross-section of the groove 3a1 is circular, and the central angle of the cross-section of the groove 3a1 is 90 degrees. The rod of the bolt 5 is located in the groove 3a1 and can press against the bottom surface of the groove 3a1. Rotating the operating lever 3a causes the two end surfaces of the groove 3a1 to contact the rod of the bolt 5, respectively, to control the opening or closing of the lower water outlet pipe 1b. The groove 3a1 on the outer wall of the operating lever 3a, with the two end surfaces respectively abutting the rod of the bolt 5, allows the sealing plate 3 to be rotated into place in one go, facilitating operation.

[0036] Preferably, the lower end of the strip groove 3a1 is open, which not only facilitates the processing of the strip groove 3a1, but also leaves the operating rod 3a unobstructed under the bolt 5. In this way, the sealing cock 2 can be unscrewed to drain water without unscrewing the bolt 5, which is convenient to use.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A double-outlet water pump volute assembly, comprising a volute body (1), an upper outlet pipe (1a) and a lower outlet pipe (1b) being horizontally formed on the top and bottom of the volute body (1), a drain port being vertically penetrated through the bottom wall of the lower outlet pipe (1b), and a sealing cock (2) being screwed into the drain port, characterized in that: The lower water outlet pipe (1b) is in the shape of a circular tube. A circular sealing plate (3) matching the lower water outlet pipe (1b) is vertically provided in the lower water outlet pipe (1b). A vertically provided operating rod (3a) is provided on the bottom wall of the sealing plate (3). A through hole is vertically passed through the sealing cock (2), and the lower end of the operating rod (3a) is passed through the through hole. The operating rod (3a) and the sealing cock (2) are rotated to match each other, and the rotating operating rod (3a) can make the side wall of the sealing plate (3) close to the inner wall of the lower water outlet pipe (1b) to cut off the lower water outlet pipe (1b). The operating rod (3a) forms a seal between the sealing ring (4) and the inner wall of the through hole. A threaded hole is radially passed through the side wall of the sealing cock (2), and the threaded hole is located below the sealing ring (4). A bolt (5) is screwed into the threaded hole, and the rod of the bolt (5) can be tightly pressed on the operating rod (3a).

2. The double-outlet water pump volute assembly according to claim 1, characterized in that: The operating rod (3a) is in the shape of a round rod, the through hole is a round hole matching the operating rod (3a), and the outer peripheral surface of the operating rod (3a) is attached to the inner peripheral surface of the round hole.

3. The double-outlet water pump volute assembly according to claim 2, characterized in that: A strip groove (3a1) is vertically provided on the outer side wall of the operating lever (3a). The cross section of the strip groove (3a1) is arc-shaped, and the central angle of the cross section of the strip groove (3a1) is 90 degrees. The rod of the bolt (5) is located in the strip groove (3a1) and can be pressed on the bottom surface of the strip groove (3a1). Rotating the operating lever (3a) can make the two end surfaces of the strip groove (3a1) contact the rod of the bolt (5) respectively to control the opening or cutting off of the lower water outlet pipe (1b).

4. The double-outlet water pump volute assembly according to claim 3, characterized in that: The lower end of the strip groove (3a1) is open.

5. The double-outlet water pump volute assembly according to claim 1 or 2, characterized in that: The sealing plate (3) comprises an O-ring (3c) and a circular plate body (3b), and the operating rod (3a) is arranged on the plate body (3b). An annular groove is provided on the outer surface of the plate body (3b), the O-ring (3c) is located in the annular groove, and the outer peripheral surface of the O-ring (3c) can contact and seal with the inner wall of the lower water outlet pipe (1b).

6. The double-outlet water pump volute assembly according to claim 5, characterized in that: There are two annular grooves distributed along the axial direction of the sealing plate (3), each annular groove is provided with the above-mentioned O-ring (3c), and when the lower water outlet pipe (1b) is cut off, the above-mentioned drain port is located between the two O-rings (3c).

7. The double-outlet water pump volute assembly according to claim 2, characterized in that: An annular positioning groove is also provided on the outer side wall of the operating rod (3a), the sealing ring (4) is located in the positioning groove, and the outer side surface of the sealing ring (4) contacts and seals with the inner wall of the through hole.

8. The double-outlet water pump volute assembly according to claim 5, characterized in that: The operating rod (3a) and the plate body (3b) are an integrated structure.

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