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CN-224229350-U - Pressure regulating valve

CN224229350UCN 224229350 UCN224229350 UCN 224229350UCN-224229350-U

Abstract

The utility model relates to a pressure regulating valve, which comprises a pole shoe (1) and is characterized in that an oil inlet hole at the bottom of the pole shoe (1) is communicated to a cavity at the upper part of the pole shoe, the oil inlet hole of the pole shoe (1) in a conical oil hole of a valve seat (2) in the cavity of the pole shoe (1) is communicated, a ball body (14) is pressed in the conical oil hole of the valve seat (2) through an armature (3) of a valve core (4), an electromagnet assembly (6) is embedded in an inner sleeve (7), the inner sleeve (6) is connected to the pole shoe (1) in a pressing mode through the outer sleeve (7), and the top of a spring (15) in a central through hole of the electromagnet assembly (6) acts on the top of the armature (3). The pressure regulating valve is convenient to process and beneficial to miniaturized application.

Inventors

  • LIN XIAN
  • XU TIEGANG

Assignees

  • 江阴林格科技有限公司

Dates

Publication Date
20260512
Application Date
20250320

Claims (10)

  1. 1. A pressure regulating valve comprises a pole shoe (1) and is characterized in that an oil inlet hole at the bottom of the pole shoe (1) is communicated to a cavity at the upper part of the pole shoe, the oil inlet hole of the pole shoe (1) in a conical oil hole of a valve seat (2) in the cavity of the pole shoe (1) is communicated, a ball body (14) is pressed in the conical oil hole of the valve seat (2) through an armature (3) of a valve core (4), an electromagnet assembly (6) is embedded in an inner sleeve (7), the inner sleeve (7) is connected to the pole shoe (1) through an outer sleeve (11) in a pressing mode, and the top of a spring (15) in a central through hole of the electromagnet assembly (6) acts on the top of the armature (3).
  2. 2. The pressure regulating valve according to claim 1, wherein a guide cylinder (8) is embedded in a central through hole of the electromagnet assembly (6), the spring (15) is positioned in the guide cylinder (8), and a spring seat (9) is sleeved on the top of the spring (15) and then positioned in the guide cylinder (8).
  3. 3. The pressure regulating valve according to claim 2, wherein a plurality of balance oil holes are formed in one end of the guide cylinder (8) extending outside the electromagnet assembly (6).
  4. 4. The pressure regulating valve according to claim 1, wherein the inner wall of the outer sleeve (11) and the outer wall of the inner sleeve (7) are connected by step surface fit, and the lower inner wall of the outer sleeve (11) is screwed on the outer wall of the pole shoe (1).
  5. 5. The pressure regulating valve according to claim 1, wherein a pressing cover (10) presses the electromagnet assembly (6) into the inner sleeve (7), and a central through hole of the pressing cover (10) is communicated with the center of the electromagnet assembly (6).
  6. 6. The pressure regulating valve according to claim 1, wherein the outgoing line of the electromagnet assembly (6) penetrating out of the gland (10) is injection molded to form a plug (12) wrapped on the outer wall of the gland (10).
  7. 7. The pressure regulating valve according to claim 1, wherein the valve core (4) is provided with an oil hole (4.1).
  8. 8. The pressure regulating valve according to claim 7, wherein the oil hole (4.1) is formed by a vertical duct and an inclined duct which are communicated with each other, the vertical duct is communicated with a cavity of the pole shoe (1), and the inclined duct is communicated to an inner cavity formed by enclosing the valve seat (2) and the valve core (4) to accommodate the ball body (14).
  9. 9. The pressure regulating valve according to claim 1, wherein the armature (3) has a T-shaped structure, a gasket (5) is arranged between the T-shaped head of the armature (3) and the valve core (4), and the gasket (5) and the T-shaped head of the armature (3) are vertically provided with through holes.
  10. 10. The pressure regulating valve according to claim 1, wherein a filter screen (13) for filtering oil is installed in an oil inlet hole at the bottom of the pole shoe (1).

Description

Pressure regulating valve Technical Field The utility model relates to a pressure regulating valve, in particular to a pressure regulating valve in an electronic control common rail system of a diesel engine, and belongs to the technical field of electromagnetic valves. Background At present, a pressure regulating valve based on an electromagnetic mode is an important executive device in an electronic control common rail system of a diesel engine, and under different engine working conditions, the fuel pressure in a common rail pipe is accurately regulated in real time according to instructions of an Electronic Control Unit (ECU), so that fuel is ensured to be injected into an engine cylinder at proper pressure, the requirement of the engine is met, and efficient combustion is realized. The conventional pressure regulating valve structure is as disclosed in China patent CN200910249091.1 'pressure regulating valve' by Boshi company, oil liquid adopts a lower inlet side outlet mode, the structure is simple, but the whole pole shoe adopts an integral processing mode, so that the processing requirement is higher, the length of an armature is overlong, and the concentricity processing requirement is also high, so that the integral processing difficulty is higher. Meanwhile, the original lower inlet and side outlet structure mode is unfavorable for the application development of miniaturization, and therefore, the lower inlet and upper outlet type pressure regulating valve favorable for the development of miniaturization is continuously developed. Disclosure of Invention The utility model aims to overcome the defects and provide the pressure regulating valve which is convenient to process and is beneficial to miniaturized application. The purpose of the utility model is realized in the following way: The utility model provides a pressure regulating valve, includes the pole shoe, in the inlet port intercommunication of pole shoe bottom is to its upper portion's cavity, and the inlet port of pole shoe is linked together in the toper oilhole of disk seat in the pole shoe cavity, passes the armature of case and presss from both sides the spheroid in the toper oilhole of disk seat, and electromagnet assembly inlays in the inner skleeve, and the outer sleeve is with inner skleeve pressfitting connection on the pole shoe, and the top of the spring that is located electromagnet assembly's central through-hole acts on the top of armature. Preferably, a guide cylinder is embedded in the central through hole of the electromagnet assembly, the spring is positioned in the guide cylinder, and a spring seat is sleeved at the top of the spring and then positioned in the guide cylinder. Preferably, a plurality of balance oil holes are formed in one end of the guide cylinder extending out of the electromagnet assembly. Preferably, the inner wall of the outer sleeve and the outer wall of the inner sleeve are connected through step surface matching, and the lower inner wall of the outer sleeve is screwed on the outer wall of the pole shoe. Preferably, a gland presses the electromagnet assembly in the inner sleeve, and a central through hole of the gland is communicated with the center of the electromagnet assembly. Preferably, the outgoing line of the electromagnet assembly penetrating out of the gland is injection molded to form the plug connector wrapped on the outer wall of the gland. Preferably, the valve core is provided with an oil hole. Preferably, the oil hole is composed of a vertical pore canal and an inclined pore canal which are mutually communicated, the vertical pore canal is communicated with a cavity of the pole shoe, and the inclined pore canal is communicated to an inner cavity formed by enclosing the valve seat and the valve core. Preferably, the armature is of a T-shaped structure, a gasket pad is arranged between the T-shaped head of the armature and the valve core, and through holes are vertically formed in the gasket and the T-shaped head of the armature. Preferably, a filter screen for filtering oil is arranged in the oil inlet hole at the bottom of the pole shoe. Compared with the prior art, the utility model has the beneficial effects that: the utility model redesigns the whole valve through the split type part structure, reduces the processing difficulty of each part, is simpler to assemble, simultaneously enables oil to enter from the lower part and lead out from the top, is favorable for being applied to miniaturized occasions, and has wider application prospect. Drawings Fig. 1 is a schematic diagram of a pressure regulating valve according to the present utility model. Fig. 2 is a schematic structural diagram of a valve core in the present utility model. Fig. 3 is a schematic structural view of a gasket according to the present utility model. Wherein: Pole shoe 1, valve seat 2, armature 3, valve core 4, gasket 5, electromagnet assembly 6, inner sleeve 7, guide cylinder 8, spring seat 9, gland 10, outer