Multi-section stepped throttling hole of valve element of electromagnetic hydraulic valve

Abstract

The utility model discloses a multi-section step type throttling hole of a valve core of an electromagnetic hydraulic valve, and particularly relates to the technical field of electromagnetic hydraulic valves, the multi-section step type throttling hole comprises a base, a flow guide assembly is arranged on the base, the flow guide assembly comprises a valve core arranged at the top of the base, a plurality of first discharge ports are formed in the outer side of the valve core, and a plurality of second discharge ports are formed in the outer side of the valve core. And the first discharge ports are arranged in a stacked manner. By arranging the flow guide assembly, a medium is gathered in the base, shunted through the shunting block and contacted with the filter screen plate, the conveyed medium is filtered through the filter screen plate, impurities in the medium are prevented from blocking the electromagnetic hydraulic valve, the position of the blocking plate is adjusted so that the blocking plate can be contacted with the first discharge ports at different positions, and the blocking effect is improved. And the displacement stroke of the plugging plate is adjusted by adjusting the tightness of the spring, it is ensured that the plugging plate can be located at the tops of different first discharge ports, and convenience during regulation and control is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic hydraulic valve technology, and more specifically, to a multi-stage stepped throttling orifice in the valve core of an electromagnetic hydraulic valve. Background Technology

[0002] As the core power transmission carrier of industrial equipment, the performance of the control components of a hydraulic system directly affects the system's dynamic response and energy efficiency. Electromagnetic hydraulic valves, as typical pilot control components, have their valve cores as the core parts of hydraulic control valves. Their function is to precisely adjust the on / off state, direction, and flow of hydraulic oil circuits, thereby controlling the actions of hydraulic actuators (such as cylinders and motors).

[0003] Among them, the patent with announcement number CN216142989U discloses a proportional relief valve, including a hydraulic valve and a valve core assembly. One end of the hydraulic valve is provided with an outlet pipe and the other end is provided with a valve core mounting hole. The valve core assembly is installed in the valve core mounting hole. The outlet of the valve core assembly is connected to the outlet pipe. The inlet located in the center of the outer wall of the valve core assembly is connected to the inlet end located in the center of the bottom of the hydraulic valve.

[0004] When the oil enters the inner valve body, it will enter the valve body shell. An electromagnetic pusher is axially slidably installed inside the valve body shell. This electromagnetic pusher is used to push the valve core cone plug closer to the oil seat, thereby changing the oil flow rate. However, this structure is not easy to adjust the oil discharge flow rate in segments, and it is not easy to quickly control during use. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a multi-stage stepped throttling orifice for the valve core of an electromagnetic hydraulic valve, which aims to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a multi-stage stepped throttling orifice of an electromagnetic hydraulic valve core, including a base, on which a flow guiding component is provided;

[0007] The flow guiding assembly includes a valve core disposed on the top of the base, and a plurality of first discharge ports are provided on the outer side of the valve core, and the first discharge ports are stacked in layers.

[0008] A filter plate is embedded in the base. A guide rod is threaded to the top of the filter plate. A sliding sleeve is fitted on the outer side of the guide rod and slides in the middle of the valve core. A sealing plate is provided at the bottom of the sliding sleeve. A spring is provided on the top of the sealing plate and covers the outer side of the sliding sleeve. A connecting plate is rotatably connected to the top of the spring. An adjusting rod is fixedly installed on the top of the connecting plate. A threaded sleeve is threaded to the outer side of the adjusting rod and is embedded in the top of the inner cavity of the valve core.

[0009] As can be seen, in the above technical solution, adjusting the position of the sealing plate allows the sealing plate to contact the first discharge port at different positions, and the function of step-wise adjustment of the flow rate of the medium discharge is achieved. When the adjusting rod is displaced, it can push the connecting plate downward and compress the spring. By adjusting the spring tension, the displacement stroke of the sealing plate can be adjusted to ensure that the sealing plate can be located at the top of different first discharge ports.

[0010] Optionally, in a possible implementation, a diversion block is fixedly provided at the bottom of the filter plate, the cross-sectional shape of the diversion block is set to a cross shape, and a plurality of second discharge ports are provided through the base, and each of the second discharge ports is distributed along the axial direction of the base on the outside of the valve core.

[0011] As can be seen, in the above technical solution, the medium is gathered in the base, diverted by the diverting block and comes into contact with the filter plate. The filter plate filters the conveyed medium to prevent impurities in the medium from clogging the electromagnetic hydraulic valve.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By setting up a flow guiding component, the overall design is simple and the structure is reasonable compared with the existing technology. Through the corresponding cooperation of various structures, the medium is gathered in the base, diverted by the flow divider block and comes into contact with the filter plate. The filter plate filters the conveyed medium to prevent impurities in the medium from clogging the electromagnetic hydraulic valve.

[0014] By adjusting the position of the sealing plate, the sealing plate can contact the first discharge port at different positions, thus enabling step-by-step adjustment of the flow rate of the medium during discharge;

[0015] Furthermore, when the adjusting rod is displaced, it can push the connecting plate downward and compress the spring. By adjusting the spring tension, the displacement stroke of the sealing plate can be adjusted, ensuring that the sealing plate can be positioned at the top of different first discharge ports, thus ensuring ease of control. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0017] Figure 1 This is a front view of the overall structure of this utility model.

[0018] Figure 2This is a side view of the overall structure of this utility model.

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the base and valve core of this utility model.

[0021] Figure 5 This is a schematic diagram of the filter screen, guide rod, sealing plate, sliding sleeve, and spring of this utility model.

[0022] The attached diagram is labeled as follows: 1. Base; 2. Valve core; 3. First discharge port; 4. Filter screen plate; 5. Guide rod; 6. Sliding sleeve; 7. Sealing plate; 8. Spring; 9. Connecting plate; 10. Threaded sleeve; 11. Adjusting rod; 12. Diverter block; 13. Second discharge port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] As attached Figures 1-5 The multi-stage stepped throttling orifice of the electromagnetic hydraulic valve core shown can be adjusted by the flow guiding component on the base 1 to make the sealing plate 7 contact the first discharge port 3 at different positions. This allows for the step-like adjustment of the flow rate of the medium during discharge. When the adjusting rod 11 is displaced, it can push the connecting plate 9 downward and compress the spring 8. By adjusting the tightness of the spring 8, the displacement stroke of the sealing plate 7 can be adjusted to ensure that the sealing plate 7 can be located at the top of different first discharge ports 3. The specific structural settings of the component are as follows.

[0025] The flow guiding assembly includes a valve core 2 disposed on the top of the base 1, and a plurality of first discharge ports 3 are provided on the outer side of the valve core 2, and the first discharge ports 3 are stacked in layers.

[0026] A filter plate 4 is embedded in the base 1. A guide rod 5 is threadedly connected to the top of the filter plate 4. A sliding sleeve 6 is sleeved on the outside of the guide rod 5 and slides in the middle of the valve core 2. A sealing plate 7 is provided at the bottom of the sliding sleeve 6. A spring 8 is provided at the top of the sealing plate 7 and covers the outside of the sliding sleeve 6. A connecting plate 9 is rotatably connected to the top of the spring 8. An adjusting rod 11 is fixedly installed on the top of the connecting plate 9. A threaded sleeve 10 is threadedly connected to the outside of the adjusting rod 11 and is embedded in the top of the inner cavity of the valve core 2.

[0027] A diversion block 12 is fixedly installed at the bottom of the filter plate 4. The cross-sectional shape of the diversion block 12 is set as a cross shape. Several second discharge ports 13 are opened through the base 1, and each second discharge port 13 is distributed along the axial direction of the base 1 on the outside of the valve core 2.

[0028] The specific working principle is as follows: the valve core is installed in the electromagnetic hydraulic valve, and the medium is injected from the base 1. The medium is gathered in the base 1 and diverted by the diverting block 12 and comes into contact with the filter plate 4. The medium is filtered by the filter plate 4 to prevent impurities in the medium from clogging the electromagnetic hydraulic valve.

[0029] Meanwhile, after being filtered by the filter plate 4, the medium can flow out through the second discharge port 13. At the same time, when the medium is delivered into the valve core 2, it can push the sealing plate 7 and the sliding sleeve 6 to move along the guide rod 5 within the valve core 2. Adjusting the position of the sealing plate 7 allows the sealing plate 7 to contact the first discharge port 3 at different positions, thus providing a step-by-step adjustment of the flow rate of the medium during discharge.

[0030] Meanwhile, to further ensure the accuracy of adjustment, the position of the adjusting rod 11 is adjusted by rotating the adjusting rod 11 along the thread guide of the threaded sleeve 10. When the adjusting rod 11 is displaced, it can push the connecting plate 9 downward and compress the spring 8. By adjusting the tightness of the spring 8, the displacement stroke of the sealing plate 7 can be adjusted to ensure that the sealing plate 7 can be located at the top of different first discharge ports 3.

[0031] Unlike existing technologies, this application discloses a multi-stage stepped throttling orifice in the valve core of an electromagnetic hydraulic valve. By adjusting the position of the sealing plate 7, the sealing plate 7 can contact the first discharge port 3 at different positions, thus adjusting the flow rate of the medium during discharge in a stepped manner. When the adjusting rod 11 is displaced, it can push the connecting plate 9 downward and compress the spring 8. By adjusting the tightness of the spring 8, the displacement stroke of the sealing plate 7 can be adjusted to ensure that the sealing plate 7 can be located at the top of different first discharge ports 3.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-stage stepped throttling orifice for an electromagnetic hydraulic valve core, comprising a base (1), characterized in that: A flow guiding component is provided on the base (1); The flow guiding assembly includes a valve core (2) disposed on the top of the base (1), and a plurality of first discharge ports (3) are provided on the outer side of the valve core (2), and each of the first discharge ports (3) is stacked. The base (1) is embedded with a filter plate (4), and the top of the filter plate (4) is threaded with a guide rod (5). A sliding sleeve (6) is sleeved on the outside of the guide rod (5), and the sliding sleeve (6) slides in the middle of the valve core (2). The bottom end of the sliding sleeve (6) is provided with a sealing plate (7).

2. The multi-stage stepped throttling orifice of the electromagnetic hydraulic valve core according to claim 1, characterized in that: A spring (8) is provided on the top of the sealing plate (7), and the spring (8) covers the outside of the sliding sleeve (6).

3. The multi-stage stepped throttling orifice of the electromagnetic hydraulic valve core according to claim 1, characterized in that: A connecting plate (9) is rotatably connected to the top of the spring (8), and an adjusting rod (11) is fixedly installed on the top of the connecting plate (9).

4. The multi-stage stepped throttling orifice of the electromagnetic hydraulic valve core according to claim 1, characterized in that: The outer side of the adjusting rod (11) is threaded with a sleeve (10), which is embedded in the top of the inner cavity of the valve core (2).

5. The multi-stage stepped throttling orifice of the electromagnetic hydraulic valve core according to claim 1, characterized in that: A diversion block (12) is fixedly provided at the bottom of the filter plate (4), and the cross-sectional shape of the diversion block (12) is set to cross shape.

6. The multi-stage stepped throttling orifice of the electromagnetic hydraulic valve core according to claim 1, characterized in that: The base (1) has several second discharge ports (13) through it, and each second discharge port (13) is distributed along the axial direction of the base (1) on the outside of the valve core (2).

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