Gear pump with feed port and discharge port located on same side

Abstract

The gear pump with the feed port and the discharge port located on the same side comprises a gear pump shell assembly and a gear assembly. The gear pump shell assembly comprises a gear pump shell, an upper cover and a bottom cover. The gear pump shell comprises a gear pump shell body, a containing cavity, a shell communicating through hole and a feeding port. And the bottom cover comprises a bottom cover main body, a bottom cover connecting through hole and a discharge hole. The gear assembly comprises a driving gear and a driven gear. When the bottom cover, the upper cover and the gear pump shell are assembled together, the shell communicating through hole and the bottom cover connecting through hole correspond to each other and communicate with each other, the extending direction of the bottom cover connecting through hole is perpendicular to the extending direction of the shell communicating through hole, and the discharging port and the feeding port are located on the same side. According to the gear pump with the feed port and the discharge port located on the same side, the feed port and the discharge port are formed on the same side, pipeline connection can be conveniently conducted on occasions with limited space, the pipeline trend does not need to be excessively adjusted, and the installation space is saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of gear pump equipment, and in particular a gear pump with the inlet and outlet located on the same side. Background Technology

[0002] A gear pump mainly consists of a pair of meshing gears, a pump body, a pump cover, and a drive shaft. The two gears are mounted on bearings on either side, and the gear shaft on the bearings is driven by an electric motor. The pump body and pump cover form a closed cavity; when the gears rotate, the fluid inside this cavity is transported.

[0003] For example, the Chinese patent for a rubber gear pump, application number CN202310304072.4, includes a pump body, a gear set, two pressure plates, and two support plates. The pump body has an inner cavity, with an inlet and an outlet on each side. The gear set is located within the inner cavity and includes two parallel, meshing gear shafts. It is evident that the inlet and outlet are located on opposite sides of the pump body. However, because the inlet and outlet are on separate sides, the pump body's lateral dimensions need to be sufficient to accommodate two independent fluid channels. This layout significantly increases the overall size of the gear pump, especially for small equipment or space-constrained locations. Its large size makes compact arrangement difficult, limiting its application in confined spaces and failing to meet user needs. Summary of the Invention

[0004] In view of this, the present invention provides a gear pump with inlet and outlet located on the same side, which can reduce the size of the pump, in order to meet industrial needs.

[0005] A gear pump with its inlet and outlet located on the same side includes a gear pump housing assembly and a gear assembly housed within the gear pump housing. The gear pump housing assembly includes a gear pump housing, a top cover disposed at one end of the gear pump housing, and a bottom cover disposed at the end of the gear pump housing opposite to the top cover. The gear pump housing includes a gear pump housing body, a receiving cavity disposed on the gear pump housing body for housing the gear assembly, a housing communication through hole connected to one end of the receiving cavity, and an inlet disposed on the side wall of the gear pump housing body and communicating with the receiving cavity. The bottom cover includes a bottom cover body, a bottom cover connecting through hole disposed within the bottom cover body, and an outlet disposed at one end of the bottom cover connecting through hole. The gear assembly includes a driving gear rotatably connected to the receiving cavity and a driven gear rotatably connected to the receiving cavity and meshing with one side of the driving gear. When the bottom cover, the top cover, and the gear pump housing are assembled together, the housing connecting through hole and the bottom cover connecting through hole correspond to each other and are connected. The extension direction of the bottom cover connecting through hole is perpendicular to the extension direction of the housing connecting through hole, and the discharge port and the inlet port are on the same side.

[0006] Furthermore, the gear pump housing also includes a first sealing assembly disposed between the upper cover and the gear pump housing, and a second sealing assembly disposed on the side of the bottom cover facing the gear pump housing.

[0007] Furthermore, the first sealing assembly includes a first sealing groove disposed at one end of the gear pump housing facing the upper cover, and a first sealing ring accommodated within the first sealing groove.

[0008] Furthermore, the second sealing assembly includes a second sealing groove at one end of the bottom cover facing the gear pump housing, and a second sealing ring accommodated within the second sealing groove.

[0009] Furthermore, the bottom cover also includes a feed pipe connected to the discharge port.

[0010] Furthermore, the bottom cover also includes a discharge pipe connected to the discharge port.

[0011] Compared with the prior art, the gear pump provided by this utility model, with its inlet and outlet located on the same side, features a bottom cover connecting through hole in the bottom cover body, with an outlet at one end of the bottom cover connecting through hole. The gear pump housing body contains a receiving cavity and a housing connecting through hole, and an inlet is located on the side wall of the gear pump housing body. When the bottom cover, the top cover, and the gear pump housing are assembled together, the housing connecting through hole and the bottom cover connecting through hole correspond to and are connected to each other. The extension direction of the bottom cover connecting through hole is perpendicular to the extension direction of the housing connecting through hole, and the outlet and the inlet are on the same side. Therefore, this gear pump with its inlet and outlet on the same side achieves convenient pipe connection in space-constrained situations, eliminating the need for excessive adjustments to the pipe routing and saving installation space. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of a gear pump with the inlet and outlet located on the same side, as provided by this utility model.

[0013] Figure 2 for Figure 1 A cross-sectional view of a gear pump with its inlet and outlet located on the same side.

[0014] Figure 3 for Figure 2 A partially enlarged structural diagram of a gear pump located on the same side as the inlet and outlet, at point A.

[0015] Figure 4 for Figure 2 A partially enlarged structural diagram of a gear pump with its inlet and outlet on the same side at point B.

[0016] Figure 5 for Figure 1 A cross-sectional view of a gear pump with its inlet and outlet on the same side. Detailed Implementation

[0017] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0018] like Figures 1 to 5 The diagram shows a structural schematic of a gear pump with its inlet and outlet located on the same side, as provided by this utility model. The gear pump with its inlet and outlet located on the same side includes a gear pump housing assembly 10 and a gear assembly 20 housed within the gear pump housing 10. The gear pump with its inlet and outlet located on the same side also includes other functional modules, such as assembly components, etc., which should be known to those skilled in the art and will not be described in detail here.

[0019] The gear pump housing 10 includes a gear pump housing 11, an upper cover 12 disposed at one end of the gear pump housing 11, a bottom cover 13 disposed at one end of the gear pump housing 11 opposite to the upper cover 12, a first sealing assembly 14 disposed between the upper cover 12 and the gear pump housing 11, and a second sealing assembly 15 disposed on the side of the bottom cover 13 facing the gear pump housing 11.

[0020] The gear pump housing 11 includes a gear pump housing body 111, a receiving cavity 112 disposed on the gear pump housing body 111 for accommodating the gear assembly 20, a housing communication through hole 113 connected to one end of the receiving cavity 112, a feed port 114 disposed on the side wall of the gear pump housing body 111 and communicating with the receiving cavity 112, and a feed pipe 115 connected to the feed port 114. The two ends of the receiving cavity 112 are respectively connected to the two ends of the gear pump housing body 111. The upper cover 12 and the bottom cover 13 are respectively sealed at the two ends of the receiving cavity 112 to seal the gear assembly 20 within the receiving cavity 112. The feed pipe 115 is used to guide liquid into the feed port 114. The connection structure between the feed pipe 115 and the feed port 114 is existing technology and will not be described in detail here.

[0021] The upper cover 12 is sealed at one end of the accommodating cavity 112. The upper cover 12 can open or close one end of the accommodating cavity 112, thereby allowing the gear assembly 20 to be installed in the accommodating cavity 112.

[0022] The bottom cover 13 includes a bottom cover body 131, a bottom cover connecting through hole 132 disposed within the bottom cover body 131, a discharge port 133 disposed at one end of the bottom cover connecting through hole 132, and a feed pipe 134 connected to the discharge port 133. The extending direction of the bottom cover connecting through hole 132 is perpendicular to the extending direction of the housing connecting through hole 113, that is, the bottom cover connecting through hole 132 changes the transmission direction of the housing connecting through hole 113, and makes the discharge port 133 and the feed port 114 on the same side, which facilitates pipe connection in space-constrained situations. The feed pipe 134 is used to guide the liquid out of the discharge port 133. The connection structure between the feed pipe 134 and the discharge port 133 is existing technology and will not be described in detail here.

[0023] The upper cover 12 and the bottom cover 13 are used to seal the two ends of the gear pump housing 11, thereby sealing the gear assembly 20 inside the gear pump housing 11. The connection structure between the upper cover 12, the bottom cover 13 and the gear pump housing 11 is a prior art and will not be described in detail here.

[0024] The first sealing assembly 14 includes a first sealing groove 141 disposed at one end of the gear pump housing 11 facing the upper cover 12, and a first sealing ring 142 accommodated within the first sealing groove 141. The first sealing groove 141 is used to limit the position of the first sealing ring 142, and the first sealing ring 142 is used to improve the sealing performance between the gear pump housing 11 and the upper cover 12. The first sealing groove 141 and the first sealing ring 142 are both prior art and will not be described in detail here.

[0025] The second sealing assembly 15 includes a second sealing groove 151 at one end of the bottom cover 13 facing the gear pump housing 11, and a second sealing ring 152 accommodated within the second sealing groove 151. The second sealing groove 151 is used to accommodate the second sealing ring 152, and the second sealing ring 152 is used to improve the sealing performance between the bottom cover 13 and the gear pump housing 11. The second sealing groove 151 and the second sealing ring 152 are both prior art and will not be described in detail here.

[0026] The gear assembly 20 includes a drive gear 21 rotatably connected to the accommodating cavity and a driven gear 22 rotatably connected to the accommodating cavity 112 and meshing with one side of the drive gear 21.

[0027] A shaft 23 is mounted on the drive gear 21, passing through the upper cover 12. The shaft 23 is connected to a motor (not shown), enabling the rotation of both the drive gear 21 and the driven gear 22. The connection structure between the shaft 23 and the motor is existing technology and will not be described further. When the gear pump starts operating, the motor drives the drive gear 21 to rotate, which in turn drives the driven gear 22 to rotate synchronously. During the rotation of the driven gear 22 by the drive gear 21, two different regions are created. In front of the rotation direction of the drive gear 21 and driven gear 22, they gradually disengage, creating a localized vacuum environment in the suction chamber. Under atmospheric pressure, fluid is forced into the suction chamber and carried between the drive gear 21 and driven gear 22 as the gears rotate. When the driving gear 21 and the driven gear 22 are engaged, the fluid is discharged from the discharge chamber. The meshing structure of the driving gear 21 and the driven gear 22 is prior art and will not be described in detail here.

[0028] Compared with the prior art, the gear pump provided by this utility model has its inlet and outlet located on the same side. The bottom cover 13 has a bottom cover connecting through hole 132 in its main body 131, and an outlet 133 is provided at one end of the bottom cover connecting through hole 132. The gear pump housing 11 has a receiving cavity 112 and a housing connecting through hole 113 within its main body 111, and an inlet 114 is provided on the side wall of the main body 111. When the bottom cover 13, the top cover 12, and the gear pump housing 11 are assembled together, the housing connecting through hole 113 and the bottom cover connecting through hole 132 correspond to and are connected to each other. The extending direction of the bottom cover connecting through hole 132 is perpendicular to the extending direction of the housing connecting through hole 113, and the outlet 133 and the inlet 114 are on the same side. This demonstrates that the gear pump with its inlet and outlet on the same side facilitates pipe connections in space-constrained environments, eliminating the need for excessive adjustments to the pipe routing and saving installation space.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A gear pump with its inlet and outlet located on the same side, characterized in that: The gear pump with its inlet and outlet on the same side includes a gear pump housing assembly and a gear assembly housed within the gear pump housing. The gear pump housing assembly includes a gear pump housing, a top cover at one end of the gear pump housing, and a bottom cover at the end of the gear pump housing facing away from the top cover. The gear pump housing includes a gear pump housing body, a receiving cavity on the gear pump housing body for housing the gear assembly, a housing through hole connected to one end of the receiving cavity, and an inlet on the side wall of the gear pump housing body communicating with the receiving cavity. The cover includes a bottom cover body, a bottom cover connecting through hole disposed in the bottom cover body, and a discharge port disposed at one end of the bottom cover connecting through hole. The gear assembly includes a driving gear rotatably connected to the accommodating cavity and a driven gear rotatably connected to the accommodating cavity and meshing with one side of the driving gear. When the bottom cover, the top cover, and the gear pump housing are assembled together, the housing connecting through hole and the bottom cover connecting through hole correspond to each other and are connected. The extension direction of the bottom cover connecting through hole is perpendicular to the extension direction of the housing connecting through hole, and the discharge port and the inlet are on the same side.

2. The gear pump with the inlet and outlet located on the same side as described in claim 1, characterized in that: The gear pump housing also includes a first sealing assembly disposed between the upper cover and the gear pump housing, and a second sealing assembly disposed on the side of the bottom cover facing the gear pump housing.

3. The gear pump with the inlet and outlet located on the same side as described in claim 2, characterized in that: The first sealing assembly includes a first sealing groove disposed at one end of the gear pump housing facing the upper cover, and a first sealing ring accommodated within the first sealing groove.

4. The gear pump with the inlet and outlet located on the same side as described in claim 2, characterized in that: The second sealing assembly includes a second sealing groove at one end of the bottom cover facing the gear pump housing, and a second sealing ring accommodated within the second sealing groove.

5. The gear pump with the inlet and outlet located on the same side as described in claim 1, characterized in that: The bottom cover also includes a feed pipe connected to the discharge port.

6. The gear pump with the inlet and outlet located on the same side as described in claim 1, characterized in that: The bottom cover also includes a discharge pipe connected to the discharge port.

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