Plunger pump outlet one-way valve assembly

Abstract

The utility model relates to a plunger pump outlet one-way valve assembly which is composed of a pump cover, a spring and a steel ball, and an oil passing groove is formed in the pump cover. And the plurality of oil passing grooves are uniformly distributed on the peripheral side of the steel ball. The design of the multiple oil passing grooves is adopted, the oil passing capacity is enhanced, and meanwhile the multiple oil passing grooves are evenly distributed in the peripheral side of the steel ball, so that the steel ball can be in a relatively stable state and is not prone to damage.

Description

Technical Field

[0001] The utility model relates to a plunger pump, in particular to an outlet check valve component of the plunger pump. Background Art

[0002] The outlet check valve of a traditional plunger pump is composed of a pump cover, a spring, and a steel ball. An oil groove is provided on the pump cover. However, there is only one oil groove with poor oil passing capacity. At the same time, the oil groove is biased to one side, which makes the pressure on the steel ball uneven, and the steel ball is unstable (rotating), which can easily cause damage to the steel ball and greatly reduce the sealing effect. Summary of the invention

[0003] In order to solve the above problems, the utility model proposes a plunger pump outlet check valve assembly, which adopts a multiple oil groove design to enhance the oil passing capacity. At the same time, the multiple oil grooves are evenly distributed around the steel ball, which can keep the steel ball in a relatively stable state and not easily damaged.

[0004] The technical solution of this utility model:

[0005] A plunger pump outlet check valve assembly, the check valve assembly consists of a pump cover, a spring, and a steel ball. The pump cover is provided with an oil passage groove; the oil passage grooves are in total several and each oil passage groove is evenly distributed around the steel ball.

[0006] The bottom of the oil-passing groove is an inclined surface; the oil-passing capacity is better and the oil-passing is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram (section) of the installation of the plunger pump outlet check valve assembly.

[0008] Figure 2 This is a three-dimensional view of the pump cover.

[0009] In the figure, pump cover 1, oil groove 1-1, spring 2, steel ball 3, and plunger pump 4. DETAILED DESCRIPTION

[0010] like Figure 1-2 As shown, a plunger pump outlet check valve assembly, the check valve assembly consists of a pump cover 1, a spring 2, and a steel ball 3. The pump cover 1 is installed on the outlet (conical surface) of the plunger pump 4, and the steel ball 3 is installed in the outlet (conical surface) of the plunger pump 4. The spring 2 is arranged between the pump cover 1 and the steel ball 3, and its two ends are respectively against the pump cover 1 and the steel ball 3. Two oil grooves 1-1 are arranged on the pump cover 1, and the two oil grooves 1-1 are evenly distributed around the steel ball 3; the bottom of the oil groove 1-1 is an inclined surface.

[0011] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A plunger pump outlet check valve assembly, the check valve assembly is composed of a pump cover, a spring, and a steel ball, and the pump cover is provided with an oil groove; characterized in that: There are several oil-passing grooves in total, and each oil-passing groove is evenly distributed around the steel ball; the bottom of the oil-passing groove is an inclined surface.

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