Novel stainless steel precision casting plunger pump

Abstract

The utility model discloses a novel stainless steel precision casting plunger pump, and relates to the technical field of plunger pumps. The novel stainless steel precision casting plunger pump comprises a crankcase and a cylinder body, the crankcase is fixedly connected with the cylinder body, an oil filling hole communicated with the interior of the crankcase is formed in the top of the crankcase, bearing chambers are arranged on the two sides of the crankcase, and an F-shaped pressure regulating valve is arranged on one side of the cylinder body; the F-type pressure regulating valve comprises a valve body and a water return port, the valve body is fixedly connected to one side of the cylinder body, the water return port is formed in the bottom of the valve body, the water return port and the valve body are communicated, the valve body and the cylinder body are communicated, and the water return port is rotationally connected with the valve body. According to the plunger pump, the F-shaped pressure regulating valve is arranged on the cylinder body of the plunger pump, the water return port of the F-shaped pressure regulating valve and the valve body form an F-shaped structure, and the water return port is rotationally connected with the valve body, so that the water return port can rotate along the valve body, the direction of the water return port is adjusted, and the flexibility and adaptability of pump installation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a novel stainless steel precision casting plunger pump. Background Art

[0002] A plunger pump is a positive displacement pump that uses the reciprocating motion of a plunger within the pump cylinder to change the volume of the pump cylinder, thereby drawing and discharging fluid. Plunger pumps are widely used in the petroleum, chemical, pharmaceutical, food processing, water treatment, and other fields, and are favored for their ability to deliver high-pressure and high-flow fluids.

[0003] However, existing technologies have limitations and issues, particularly regarding the design of the pump's return port: Fixed return port: In traditional plunger pump designs, the return port is typically fixed and cannot be adjusted in orientation. This limits the pump's installation flexibility and adaptability, particularly in applications where space is limited or a specific mounting angle is required. Utility Model Content

[0004] To this end, the embodiment of the present utility model provides a new stainless steel precision casting plunger pump to solve the problem that the return port of the plunger pump is fixed and cannot be adjusted in the above technology.

[0005] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0006] A new type of stainless steel precision-cast plunger pump, comprising a crankcase and a cylinder body, wherein the crankcase and the cylinder body are fixedly connected, a refueling hole connected to the interior of the crankcase is provided at the top, bearing chambers are provided on both sides of the crankcase, and an F-type pressure regulating valve is provided on one side of the cylinder body;

[0007] The F-type pressure regulating valve includes a valve body and a return water port. The valve body is fixedly connected to one side of the cylinder body. The return water port is arranged at the bottom of the valve body, and the return water port and the valve body, and the valve body and the cylinder body are all connected. The return water port is rotatably connected to the valve body, and the return water port and the valve body form an F-type structure.

[0008] Optionally, a connecting flange is provided on the outer side of one of the bearing chambers, and the connecting flange is fixedly connected to the outer side of the bearing chamber.

[0009] Optionally, the bearing chamber is a cavity extending outward from the middle of both sides of the crankcase, and the bearing chamber is integrated with the crankcase.

[0010] Optionally, arc-shaped reinforcing ribs are provided between the bearing chamber and the crankcase.

[0011] Optionally, the cylinder body is made of 304 or 316 stainless steel.

[0012] The utility model has at least the following beneficial effects:

[0013] The utility model provides an F-type pressure regulating valve on the cylinder body of the plunger pump, wherein the water return port and the valve body of the F-type pressure regulating valve form an F-type structure, and the water return port and the valve body are rotatably connected, so that the water return port can be rotated along the valve body, thereby adjusting the direction of the water return port and improving the flexibility and adaptability of the pump installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the embodiments of the present invention. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other drawings based on the provided drawings without inventive effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented. Any structural modifications, changes in proportions, or adjustments in sizes shall remain within the scope of the technical contents disclosed herein without affecting the efficacy and objectives of the present invention.

[0016] Figure 1 This is a schematic structural diagram from a first perspective of an embodiment of the present invention;

[0017] Figure 2 This is a schematic structural diagram from a second perspective of an embodiment of the present invention;

[0018] Figure 3 A schematic structural diagram from a third perspective of an embodiment of the present invention.

[0019] Description of reference numerals:

[0020] 1. Crankcase; 2. Cylinder block; 3. Oil filling hole; 4. Bearing chamber; 5. F-type pressure regulating valve; 51. Valve body; 52. Return water port; 6. Connecting flange; 7. Reinforcement rib. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0022] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not necessarily need to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0023] In addition, the terms "including", "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization solutions conceived by the present invention.

[0024] like Figure 1-Figure 3 The figure shows a novel stainless steel precision-cast plunger pump disclosed in the present utility model, comprising a crankcase 1 and a cylinder body 2, wherein the crankcase 1 and the cylinder body 2 are fixedly connected, a refueling hole 3 communicating with the interior of the crankcase 1 is provided at the top, bearing chambers 4 are provided on both sides of the crankcase 1, and an F-type pressure regulating valve 5 is provided on one side of the cylinder body 2;

[0025] The F-type pressure regulating valve 5 includes a valve body 51 and a return water port 52. The valve body 51 is fixedly connected to one side of the cylinder body 2. The return water port 52 is arranged at the bottom of the valve body 51. The return water port 52 and the valve body 51 are connected, and the valve body 51 and the cylinder body 2 are connected. The return water port 52 is rotatably connected to the valve body 51.

[0026] The crankcase 1 has a streamlined three-dimensional shape, and its appearance is unique and beautiful with a strong three-dimensional effect.

[0027] The connection between the two sides of the crankcase 1 and the bearing chamber 4 is uniquely designed. The bearing chamber 4 is a cavity extending outward from the middle of both sides of the crankcase 1. The size of the bearing chamber 4 is smaller than that of the crankcase 1. The bearing chamber 4 and the crankcase 1 are integrated. The front end of the bearing chamber 4 faces the side of the cylinder block 2 and is connected to the crankcase 1 by an arc-shaped plate rib formed downward from the top of the bearing chamber 4. The hollow arc-shaped wide auxiliary plate rib is used to form a reinforcing rib 7, which reduces the deformation of the bearing chamber 4, enhances the tensile strength of the crankcase 1, and has good air circulation, thereby reducing the temperature of the crankcase 1 and the bearing chamber 4.

[0028] The oil filling hole 3 on the top of the crankcase 1 is designed at the front end of the crankcase 1 near the plunger oil seal, which improves the lubrication inside the case. Three small holes with a diameter of 3 are punched on the side wall of the three plunger holes in the case through the oil filling hole 3, which enhances the lubrication of the plunger body and the oil seal and increases the service life of the pump.

[0029] A connecting flange 6 is provided on the outer side of one of the bearing chambers 4 , and the connecting flange 6 is fixedly connected to the outer side of the bearing chamber 4 .

[0030] The cylinder body 2 is made of 304 or 316 stainless steel. The cylinder body 2 is made of stainless steel through one-time precision casting, which enhances the acid resistance, alkali resistance and corrosion resistance of the cylinder body 2.

[0031] The geometric shape of the precision-cast cylinder body 2, all machining surfaces and each hole are formed in one step by precision casting. The machining allowance of the cylinder body 2 and the machining parts is small, which shortens the machining time and reduces the machining cost.

[0032] The material utilization rate of the precision casting cylinder body 2 is relatively high, and the material utilization rate can reach 90%. The precision casting mold of the cylinder body 2 has high universal performance and can use materials such as steel, iron, copper, and aluminum.

[0033] The F-type pressure regulating valve 5 is designed with a three-dimensional structure. The return port 52 is rotatably connected to the valve body 51, and a limit structure is provided to limit the rotation angle of the return port 52 to 180°, and it can rotate at any angle within the limit range.

[0034] The stainless steel precision casting plunger pump of the present application has the advantages of small size, light weight, streamlined appearance, beautiful shape, unique and exquisite.

[0035] The above specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0036] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0037] The above description of the present invention is relatively specific and detailed through a general explanation and specific embodiments. It should be noted that variations and modifications to these specific embodiments are possible without departing from the spirit of the present invention, and all such variations and modifications fall within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be determined by the appended claims.

Claims

1. A new type of stainless steel precision casting plunger pump, characterized by: It includes a crankcase and a cylinder body, wherein the crankcase is fixedly connected to the cylinder body, a refueling hole connected to the interior of the crankcase is provided on the top of the crankcase, bearing chambers are provided on both sides of the crankcase, and an F-type pressure regulating valve is provided on one side of the cylinder body; The F-type pressure regulating valve includes a valve body and a return water port. The valve body is fixedly connected to one side of the cylinder body. The return water port is arranged at the bottom of the valve body, and the return water port and the valve body, and the valve body and the cylinder body are all connected. The return water port is rotatably connected to the valve body, and the return water port and the valve body form an F-type structure.

2. A novel stainless steel precision casting plunger pump according to claim 1, characterized in that: A connecting flange is provided on the outside of one of the bearing chambers, and the connecting flange is fixedly connected to the outside of the bearing chamber.

3. A novel stainless steel precision casting plunger pump according to claim 1, characterized in that: The bearing chamber is a cavity extending outward from the middle of both sides of the crankcase, and the bearing chamber is integrated with the crankcase.

4. A novel stainless steel precision casting plunger pump according to claim 1, characterized in that: An arc-shaped reinforcing rib is provided between the bearing chamber and the crankcase.

5. A novel stainless steel precision casting plunger pump according to claim 1, characterized in that: The cylinder body is made of 304 or 316 stainless steel.

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