Pump bodies, pumps and pump units

Abstract

The present disclosure relates to the field of pump technology, in particular, pump bodies, pumps and pump units, wherein the pump body includes a first connection end, the first connection end is located at one end of the pump body in the axial direction, the first connection end is configured to connect to a motor, and the first connection end includes a groove that defines a pump cavity; and a second connection end, the second connection end is located at the other end of the pump body in the axial direction, the second connection end is configured to connect to a water facility, and the second connection end includes a water inlet and a water outlet both connected to the pump cavity, and the orientation of the water inlet is the same as that of the water outlet. According to the pump body of the present disclosure, a water inlet and a water outlet facing the same direction are simultaneously provided on the second connection end, so that the pump body can be directly connected to a water facility with the water inlet and the water outlet facing the same direction, and the use of a switching device can be avoided, thereby reducing the required installation space.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pumps, in particular to a pump body, a pump and a pump unit. Background Art

[0002] In some scenarios, the water inlet and outlet of water-using facilities (such as heating equipment, air-conditioning and refrigeration equipment) have the same orientation, while the water inlet and outlet of known pumps have different orientations, usually 90° or 180° apart. Therefore, a adapter needs to be installed between the pump and the water-using facility to connect the pump to the water-using facility.

[0003] However, the existence of the adapter increases the required installation space. Utility Model Content

[0004] A first object of the present disclosure is to provide a pump body which does not have the above-mentioned drawbacks.

[0005] To achieve this purpose, the present disclosure provides a pump body, which includes a first connection end, which is located at one axial end of the pump body, the first connection end is configured to connect to a motor, and the first connection end includes a groove that defines a pump cavity; and a second connection end, which is located at the other axial end of the pump body, the second connection end is configured to connect to a water facility, and the second connection end includes a water inlet and a water outlet both connected to the pump cavity, and the direction of the water inlet is the same as that of the water outlet.

[0006] According to the pump body disclosed in the present invention, the first connecting end and the second connecting end are located at two opposite ends of the pump body in the axial direction, the first connecting end is used to connect to the motor, and the second connecting end is used to connect to the water facility, and the second connecting end is also provided with a water inlet and a water outlet facing the same direction, so that the pump body can be directly connected to the water facility whose water inlet and water outlet are facing the same direction, and the use of a switching device can be avoided, thereby reducing the required installation space.

[0007] A second object of the present disclosure is to provide a pump that does not have the above-mentioned drawbacks.

[0008] To achieve this objective, the present disclosure provides a pump, which includes the aforementioned pump body; an impeller, which is located in the pump chamber; and a motor, which is arranged at the first connecting end and drives the impeller to rotate in the pump chamber.

[0009] The advantages mentioned above for the pump body also apply to the pump.

[0010] A third object of the present disclosure is to provide a pump unit that does not have the above-mentioned drawbacks.

[0011] To achieve this objective, the present disclosure provides a pump unit, which includes the aforementioned pump; a water inlet sealing ring, which is located in a water inlet sealing groove of the pump body; a water outlet sealing ring, which surrounds the water outlet of the pump body; an outer cylindrical sealing ring, which is located in an outer cylindrical sealing groove of the pump body; and a water use facility, which is directly installed on the second connecting end, and which applies axial pressure to the water inlet sealing ring, the water outlet sealing ring and the outer cylindrical sealing ring, and whose water outlet hole is connected to the water inlet, and whose water inlet hole is connected to the water outlet.

[0012] The advantages mentioned above for the pump body or the pump also apply to the pump assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a pump provided by an embodiment of the present disclosure is shown.

[0014] Figure 2 A schematic diagram of the first connection end of the pump body provided in an embodiment of the present disclosure is shown.

[0015] Figure 3 A schematic diagram of the second connection end of the pump body provided in an embodiment of the present disclosure is shown.

[0016] Figure 4 A front view of a second connection end of a pump body provided in an embodiment of the present disclosure is shown.

[0017] Figure 5 Shows Figure 4 Cross-sectional view at AA in the middle.

[0018] Figure 6 Shows Figure 4 Cross-sectional view at BB in the middle.

[0019] Figure 7 A schematic diagram of a pump body, a water inlet sealing ring, a water outlet sealing ring and an outer circular sealing ring provided in an embodiment of the present disclosure is shown.

[0020] Figure 8 A schematic diagram of a second connection end of another pump body provided in an embodiment of the present disclosure is shown.

[0021] Fig. 9 A schematic diagram of a first connection end of another pump body provided in an embodiment of the present disclosure is shown.

[0022] Reference numerals:

[0023] 1. Pump body;

[0024] 2. first connection end; 21. mounting hole; 22. groove; 23. pump chamber;

[0025] 3. Second connection end; 31. Connection hole; 32. Water inlet; 33. Water outlet; 34. Connection surface; 341. Central area; 342. Edge area; 343. Outer circle sealing groove; 344. Water inlet sealing groove; 35. Cavity;

[0026] 4. Water inlet sealing ring;

[0027] 5. Water outlet sealing ring;

[0028] 6. Outer cylindrical sealing ring;

[0029] 7. Motor. DETAILED DESCRIPTION

[0030] The technical solution of the present disclosure is further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings, rather than all of them.

[0031] Some directional words are defined in the present disclosure. Unless otherwise stated, the directional words used, such as "up", "down", "left", "right", "inside" and "outside", are used for ease of understanding and therefore do not constitute a limitation on the scope of protection of the present disclosure.

[0032] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0034] Figure 1Schematic diagram of a pump provided by an embodiment of the present disclosure is shown. The pump may be a centrifugal pump, in particular a shielded pump. Figure 1 As shown, the pump includes a pump body 1 and a motor 7 connected to the pump body 1, the position on the pump body 1 for connecting the motor 7 is defined as a first connection end 2, the position on the pump body 1 away from the motor 7 is defined as a second connection end 3, the first connection end 2 and the second connection end 3 are located at opposite ends of the pump body 1, and the connection direction of the first connection end 2 and the second connection end 3 can be considered as the axial direction of the pump body 1. As an example, in Figure 1 In the embodiment, the axial direction of the pump body 1 and the motor shaft of the motor 7 are parallel to each other.

[0035] Figure 2 FIG. 2 shows a schematic diagram of the first connection end 2 of the pump body 1 provided in an embodiment of the present disclosure. Figure 2 As shown, the first connecting end 2 is generally rectangular, especially square, and the side lines of the rectangle are arc-shaped and slightly protrude outward, so that the interior of the rectangle (especially the center) has sufficient area to form the groove 22 while reducing the area of ​​the rectangle as a whole, thereby reducing the material required for the pump body 1 and reducing costs.

[0036] like Figure 2 As shown, a plurality of (for example, 4) mounting holes 21 are provided near the edge (especially the corner) of the first connecting end 2, and the mounting holes 21 correspond to the holes on the motor 7 so that the motor 7 and the pump body 1 can be connected together using fasteners such as bolts.

[0037] like Figure 2 As shown, a groove 22 sunken into the interior of the pump body 1 is provided inside the first connecting end 2, especially at the center position. The groove 22 defines a pump chamber 23 of the pump body 1. The pump chamber 23 can accommodate an impeller (not shown). The impeller is connected to the motor shaft and can be driven by the motor shaft to rotate in the pump chamber 23.

[0038] Figure 3 FIG. 2 shows a schematic diagram of the second connection end 3 of the pump body 1 provided in an embodiment of the present disclosure. Figure 3 As shown, the second connecting end 3 is generally rectangular, especially square, and the side lines of the rectangle are slightly convex arcs, so that the interior of the rectangle (especially the center) has sufficient area while reducing the overall area of ​​the rectangle, thereby reducing the material required for the pump body 1 and reducing costs.

[0039] like Figure 3 As shown, the second connection end 3 is provided with a plurality of (for example, 4) connection holes 31 near the edge (especially the corner), and the connection holes 31 correspond to the holes on the water facilities (not shown) so that the motor 7 and the water facilities can be connected together using fasteners such as bolts. The water facilities can be heating equipment, air-conditioning and refrigeration equipment, etc.

[0040] It should be noted that the external dimensions of the second connection end 3 may be different from those of the first connection end 2. For example, the external dimensions of the second connection end 3 may be larger than those of the first connection end 2, so that the second connection end 3 can be connected to the water facility when the first connection end 2 is already connected to the motor 7.

[0041] like Figure 3 As shown, the second connection end 3 is provided with a water inlet 32 ​​and a water outlet 33, both of which are connected to the pump chamber 23 mentioned above. When the impeller rotates in the pump chamber 23, a negative pressure is formed at the center of the impeller, and water can be sucked into the pump chamber 23 from the water inlet 32 ​​and contact the high-speed rotating impeller. The water thrown out by the impeller can flow in the pump chamber 23 and finally spray out from the water outlet 33. In addition, when the second connection end 3 is connected to a water facility, the water inlet 32 ​​is connected to the water outlet of the water facility, and the water outlet 33 is connected to the water inlet of the water facility, thereby forming a loop between the pump and the water facility.

[0042] like Figure 3 As shown, the water inlet 32 ​​and the water outlet 33 have the same orientation. Specifically, the water inlet 32 ​​and the water outlet 33 can both be oriented along the axial direction of the pump body 1. Therefore, even if the water inlet hole and the water outlet hole on the water use facility have the same orientation, the pump body 1 can be directly connected to the water use facility without providing an additional adapter between the water use facility and the pump body 1. Compared with the pump or pump body 1 in the prior art in which the water inlet 32 ​​and the water outlet 33 are oriented differently, the pump or pump body 1 according to the present disclosure can reduce the required installation space.

[0043] like Figure 3 Combined with Figure 2 As shown, the water inlet 32 ​​may be located at the center of the pump chamber 23 so that water entering the pump chamber 23 from the water inlet 32 ​​may immediately enter the center of the impeller.

[0044] like Figure 3 Combined with Figure 2 As shown, the water outlet 33 can be located at the edge of the pump chamber 23 so that the high-pressure water in the pump chamber 23 can immediately enter the water outlet 33 along the preset flow channel in the pump chamber 23, reducing the pressure loss of the water.

[0045] like Figure 3 Combined with Figure 2 As shown, the projection of the water outlet 33 along the axial direction of the pump body 1 can be located outside the boundary line of the pump chamber 23, and the high-pressure water in the pump chamber 23 can flow into the water outlet 33 along the boundary of the side wall of the pump chamber 23, which is beneficial to reducing the pressure loss of water.

[0046] Figure 4 FIG. 2 shows a front view of the second connection end 3 provided in an embodiment of the present disclosure. Figure 4As shown, the second connection end 3 also includes a connection surface 34, and the connection surface 34 includes a central area 341 and an edge area 342. The water inlet 32 ​​and the water outlet 33 are both located in the central area 341, and the connection hole 31 is located in the edge area 342. The boundary line between the central area 341 and the edge area 342 can be an outer circular sealing groove 343 on the connection surface 34 that is axially inwardly recessed. The outer circular sealing groove 343 is circular, and the area inside the outer circular sealing groove 343 is the central area 341, and the area outside the outer circular sealing groove 343 is the edge area 342.

[0047] like Figure 4 As shown, the water outlet 33 can be adjacent to the outer circular sealing groove 343, for example, the water outlet 33 can be tangent to the outer circular sealing groove 343. In this way, the outer circular sealing ring 6 suitable for installation in the outer circular sealing groove 343 and the water outlet sealing ring 5 suitable for installation around the water outlet 33 can be integrally formed to facilitate the installation of the sealing ring and also help to improve the sealing effect.

[0048] Figure 5 Shows Figure 4 Cross-sectional view at AA in the middle. Figure 6 Shows Figure 4 The cross-sectional view at BB in the figure. Figure 5 and Figure 6 As shown, the water inlet 32 ​​and the water outlet 33 both protrude axially outward from the connection surface 34 to facilitate the connection between the water outlet and the water inlet of the water-using facility.

[0049] In addition, the connecting surface 34 also has an axially inwardly recessed water inlet sealing groove 344, which surrounds the water inlet 32. The water inlet sealing groove 344 is suitable for installing the water inlet sealing ring 4, and when the water use facility is installed to the second connecting end 3, the water use facility applies an axial force to the water inlet 32, pressing the water inlet sealing ring 4 into the water inlet sealing groove 344.

[0050] In addition, the connecting surface 34 also has an axially inwardly recessed cavity 35, which is located inside the outer circular sealing groove 343 and surrounds the water inlet 32 ​​and the water outlet 33. By providing the cavity 35, the wall thickness of the pump body 1 can be made roughly the same at various locations, thereby reducing the material of the pump body 1 and reducing the cost while ensuring the structural strength of the pump body 1.

[0051] It should be noted that the connection surface 34 may not be provided with the cavity 35. Figure 8 and Fig. 9 Another pump body 1 shown. In addition, as Figure 7 and Figure 8 As shown, the mounting hole 21 and the connecting hole 31 may be the same hole. In addition, the first connecting end 2 and the second connecting end 3 may have substantially the same outer dimensions.

[0052] Figure 7 FIG. 1 is a schematic diagram showing a pump body 1, a water inlet sealing ring 4, a water outlet sealing ring 5 and an outer cylindrical sealing ring 6 provided in an embodiment of the present disclosure. Figure 7 As shown, the water inlet sealing ring 4 can be installed to the water inlet sealing groove 344, the water outlet sealing ring 5 can be installed around the water outlet 33, the outer circle sealing ring 6 can be installed to the outer circle sealing groove 343, and in this embodiment, each sealing ring is axially sealed to facilitate adaptation to irregular sealing surfaces and make the installation process more convenient.

[0053] like Figure 7 As shown, since the distance between the water outlet 33 and the outer circular sealing groove 343 is very small, the water outlet sealing ring 5 can be integrally formed with the outer circular sealing ring 6, thereby making it easier to install the sealing ring and helping to improve the sealing effect.

[0054] The disclosed embodiment also provides a pump unit, including the above-mentioned pump; an inlet sealing ring 4, which is located in the inlet sealing groove 344 of the pump body 1; an outlet sealing ring 5, which surrounds the water outlet 33 of the pump body 1; an outer cylindrical sealing ring 6, which is located in the outer cylindrical sealing groove 343 of the pump body 1; and a water use facility, which is directly installed on the second connecting end 3, and the water use facility applies axial pressure to the inlet sealing ring 4, the outlet sealing ring 5 and the outer cylindrical sealing ring 6, and the water outlet hole of the water use facility is connected to the water inlet 32, and the water inlet hole of the water use facility is connected to the water outlet 33.

[0055] The above is a description of the embodiments of the present disclosure. Through the above description of the disclosed embodiments, professionals and technicians in the field can implement or use the present disclosure. Various modifications to these embodiments will be apparent to professionals and technicians in the field. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novelties disclosed herein.

Claims

1. Pump body, characterized in that, The pump body (1) comprises: a first connection end (2), the first connection end (2) being located at one axial end of the pump body (1), the first connection end (2) being configured to be connected to a motor (7), the first connection end (2) comprising a groove (22) defining a pump cavity (23); and A second connection end (3), the second connection end (3) is located at the other axial end of the pump body (1), the second connection end (3) is configured to connect to a water facility, the second connection end (3) comprises a water inlet (32) and a water outlet (33) both of which are connected to the pump chamber (23), and the direction of the water inlet (32) is the same as that of the water outlet (33).

2. The pump body according to claim 1, characterized in that: The water inlet (32) and the water outlet (33) are both oriented in the axial direction of the pump body (1).

3. The pump body according to claim 2, characterized in that: The water inlet (32) is located at the center of the pump chamber (23), and the water outlet (33) is located at the edge of the pump chamber (23).

4. The pump body according to claim 3, characterized in that: The projection of the water outlet (33) along the axial direction of the pump body (1) is located outside the boundary line of the pump chamber (23).

5. The pump body according to any one of claims 1 to 4, characterized in that: The second connection end (3) further comprises: A connecting surface (34), the connecting surface (34) comprising a central area (341) and an edge area (342), the water inlet (32) and the water outlet (33) are both located in the central area (341), the edge area (342) has a connecting hole (31), and the connecting hole (31) is configured to connect the pump body (1) to the water facility.

6. The pump body according to claim 5, characterized in that: The water inlet (32) and the water outlet (33) both protrude axially outward from the connecting surface (34); and / or The connection surface (34) has a water inlet sealing groove (344) that is axially recessed inward, and the water inlet sealing groove (344) surrounds the water inlet (32); and / or The connection surface (34) has an outer circular sealing groove (343) that is axially recessed inwards, the outer circular sealing groove (343) serving as a boundary line between the central area (341) and the edge area (342), and the water outlet (33) is tangent to the outer circular sealing groove (343).

7. The pump body according to claim 6, characterized in that: The connection surface (34) has a cavity (35) that is axially recessed inwards, the cavity (35) is located inside the outer circular sealing groove (343), and the cavity (35) surrounds the water inlet (32) and the water outlet (33).

8. A pump, characterized in that The pump comprises: The pump body (1) according to any one of claims 1 to 7; an impeller, the impeller being located in the pump chamber (23); and A motor (7), wherein the motor (7) is arranged at the first connecting end (2), and the motor (7) drives the impeller to rotate in the pump chamber (23).

9. A pump unit, characterized in that: The pump unit comprises: The pump according to claim 8; A water inlet sealing ring (4), wherein the water inlet sealing ring (4) is located in a water inlet sealing groove (344) of the pump body (1); A water outlet sealing ring (5), the water outlet sealing ring (5) surrounding the water outlet (33) of the pump body (1); An outer cylindrical sealing ring (6), the outer cylindrical sealing ring (6) being located in an outer cylindrical sealing groove (343) of the pump body (1); and A water-using facility, the water-using facility being directly mounted on the second connection end (3), the water-using facility applying axial pressure to the water inlet sealing ring (4), the water outlet sealing ring (5) and the outer cylindrical sealing ring (6), the water outlet hole of the water-using facility being connected to the water inlet (32), and the water inlet hole of the water-using facility being connected to the water outlet (33).

10. The pump assembly according to claim 9, characterized in that The outer cylindrical sealing ring (6) and the water outlet sealing ring (5) are integrally formed.

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