Valve seat of overflow electromagnetic valve

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses a valve seat of an overflow electromagnetic valve, which comprises an overflow electromagnetic valve body, the overflow electromagnetic valve body is respectively provided with a valve seat body, a pilot pressure regulating valve and an electromagnetic valve body, a flow channel is arranged in the valve seat body, the inner wall of the flow channel is respectively provided with a plurality of slots, and the slots are communicated with the pilot pressure regulating valve and the electromagnetic valve body. Inserting plates are movably inserted into the multiple inserting grooves. According to the utility model, hydraulic oil enters the valve seat body through the bottom end of the flow channel in the valve seat body, and flows upwards in the flow channel, so that the two first fan blades and the second fan blade on the rotating rod rotate under the matching action of the bearing, and then the auger on the rotating rod is rotated to rotate in the flow channel of the valve seat body; impurities attached to the inner wall of the flow channel are scraped and cleaned through rotation of the auger, the situation that normal flowing of hydraulic oil is hindered by the impurities attached to the inner wall of the flow channel is avoided, and normal work of the overflow electromagnetic valve body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a valve seat of an overflow solenoid valve. Background Art

[0002] The overflow solenoid valve is a solenoid valve specially used to control the pressure in the hydraulic system. Its main function is to maintain the pressure stability in the system by controlling the discharge of hydraulic oil flow, preventing the system from being damaged due to excessive pressure. The overflow solenoid valve is usually used in conjunction with the pressure control device in the hydraulic system. When the predetermined pressure is exceeded, it automatically opens to release the excess hydraulic oil into the return oil pipeline, thereby protecting the system.

[0003] During actual use, the existing overflow solenoid valve is prone to failure to apply pressure. The general reason is that the inner wall of the flow channel in the valve seat of the overflow solenoid valve is clogged by impurities. The impurities attached to the inner wall of the flow channel will hinder the normal flow of the liquid, causing the overflow solenoid valve to fail to work normally, and may even cause system pressure to lose control or equipment damage. Therefore, a valve seat of an overflow solenoid valve is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a valve seat for an overflow solenoid valve, which is used to solve the above problems.

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

[0006] A valve seat of an overflow solenoid valve comprises an overflow solenoid valve body, on which a valve seat body, a pilot pressure regulating valve and a solenoid valve body are respectively provided, a flow channel is opened in the valve seat body, and the inner wall of the flow channel is respectively opened with a plurality of slots, wherein a plug-in plate is movably inserted in each of the plurality of slots, one end of a connecting rod is fixedly installed on the inner side of the plurality of plug-ins, and the other end of the plurality of connecting rods is fixedly installed with the same fixed ring, a bearing is provided in the fixed ring, a rotating rod is provided in the bearing, and a rotating cleaning mechanism is provided on the rotating rod.

[0007] Preferably, a mounting groove is provided on the top side of the valve seat body, the mounting groove is connected to multiple slots in the flow channel, a piston sleeve is provided in the mounting groove, the bottom side of the piston sleeve is fitted against the top side of multiple plug-ins, and the multiple plug-ins are limited by the piston sleeve.

[0008] Preferably, the rotating cleaning mechanism includes a first fan blade, a second fan blade and an auger, two first fan blades are fixedly mounted on the rotating rod, a second fan blade is fixedly mounted on the rotating rod, and an auger is fixedly mounted on the rotating rod; the hydraulic oil flows upward in the flow channel, so that the two first fan blades and one second fan blade on the rotating rod rotate under the cooperation of the bearing.

[0009] Preferably, the diameter of the first fan blade located below the rotating rod is larger than the diameter of the first fan blade above it, so that the two first fan blades of different diameters on the rotating rod can rotate in the flow channel.

[0010] Preferably, the auger on the rotating rod is located in the middle position between the first fan blade and the second fan blade, and the external contact surface of the auger rotates and fits on the inner wall of the flow channel and the piston sleeve; when the rotating rod rotates, the impurities attached to the inner wall of the flow channel are scraped and cleaned by the rotation of the auger on the rotating rod.

[0011] Preferably, a damping through hole is provided on the valve seat body, the damping through hole is communicated with the flow channel, and a damping joint is provided at one end of the damping through hole on the valve seat body; the damping joint facilitates external damping equipment.

[0012] The beneficial effects of the utility model are as follows: the valve seat of the overflow solenoid valve, when the overflow solenoid valve body is in operation, the hydraulic oil enters the valve seat body through the bottom end of the flow channel in the valve seat body, and the hydraulic oil flows upward in the flow channel, so that the two first blades and the second blade on the rotating rod are rotated under the cooperation of the bearing, and then the auger on the rotating rod is rotated in the flow channel of the valve seat body, and the impurities attached to the inner wall of the flow channel are scraped and cleaned by the rotation of the auger, so that the impurities attached to the inner wall of the flow channel are prevented from interfering with the normal flow of the hydraulic oil, thereby ensuring the normal operation of the overflow solenoid valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the utility model from a three-dimensional perspective;

[0014] Figure 2 This is a schematic structural diagram of the side cross-section of the valve seat body of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model in a partial cross-section from an exploded perspective;

[0016] Figure 4 This is a structural diagram of the rotating rod perspective of the utility model.

[0017] In the figure: 1. Overflow solenoid valve body; 2. Valve seat body; 3. Pilot pressure regulating valve; 4. Solenoid valve body; 5. Flow channel; 6. Slot; 7. Insert plate; 8. Connecting rod; 9. Fixing ring; 10. Bearing; 11. Rotating rod; 12. First fan blade; 13. Second fan blade; 14. Auger; 15. Damping through hole; 16. Damping joint; 17. Mounting groove; 18. Piston sleeve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Reference Figure 1-4 A valve seat of an overflow solenoid valve comprises an overflow solenoid valve body 1, on which a valve seat body 2, a pilot pressure regulating valve 3 and a solenoid valve body 4 are respectively arranged. A flow channel 5 is opened in the valve seat body 2, and a plurality of slots 6 are opened on the inner wall of the flow channel 5. A plug-in plate 7 is movably inserted in each of the plurality of slots 6. One end of a connecting rod 8 is fixedly installed on the inner side of the plurality of plug-ins 7, and the other end of the plurality of connecting rods 8 is fixedly installed with the same fixing ring 9. A bearing 10 is arranged in the fixing ring 9, and a rotating rod 11 is arranged in the bearing 10. A rotating rod 11 is provided on the rotating rod 11. A rotating cleaning mechanism is provided.

[0020] Furthermore, a mounting groove 17 is provided on the top side of the valve seat body 2, and the mounting groove 17 is connected to the multiple slots 6 in the flow channel 5. A piston sleeve 18 is provided in the mounting groove 17, and the bottom side of the piston sleeve 18 is fitted against the top side of the multiple plug-in plates 7, so that the multiple plug-in plates 7 are limited by the piston sleeve 18.

[0021] Furthermore, the rotating cleaning mechanism includes a first fan blade 12, a second fan blade 13 and an auger 14. Two first fan blades 12 are fixedly installed on the rotating rod 11, the second fan blade 13 is fixedly installed on the rotating rod 11, and the auger 14 is fixedly installed on the rotating rod 11; the hydraulic oil flows upward in the flow channel 5, so that the two first fan blades 12 and one second fan blade 13 on the rotating rod 11 rotate under the cooperation of the bearing 10.

[0022] Specifically, the diameter of the first fan blade 12 located below the rotating rod 11 is larger than the diameter of the first fan blade 12 above it, so that the first fan blades 12 of two diameter sizes on the rotating rod 11 can rotate in the flow channel 5.

[0023] Specifically, the auger 14 on the rotating rod 11 is located in the middle position between the first fan blade 12 and the second fan blade 13, and the external contact surface of the auger 14 rotates and fits on the inner wall of the flow channel 5 and the piston sleeve 18; when the rotating rod 11 rotates, the rotation of the auger 14 on the rotating rod 11 is used to scrape and clean impurities attached to the inner wall of the flow channel 5.

[0024] Furthermore, a damping through hole 15 is provided on the valve seat body 2, which is communicated with the flow channel 5. A damping joint 16 is provided at one end of the damping through hole 15 on the valve seat body 2; the damping joint 16 facilitates external damping equipment.

[0025] During use: When the overflow solenoid valve body 1 is working, the hydraulic oil enters the valve seat body 2 through the bottom end of the flow channel 5 in the valve seat body 2, and the hydraulic oil flows upward in the flow channel 5, so that the two first blades 12 and the second blade 13 on the rotating rod 11 rotate under the cooperation of the bearing 10, and then the auger 14 on the rotating rod 11 rotates in the flow channel 5 of the valve seat body 2. The rotation of the auger 14 is used to scrape and clean the impurities attached to the inner wall of the flow channel 5, so as to avoid the impurities attached to the inner wall of the flow channel 5 from interfering with the normal flow of the hydraulic oil, thereby ensuring the normal operation of the overflow solenoid valve body 1.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A valve seat of an overflow solenoid valve, comprising an overflow solenoid valve body (1), characterized in that: The overflow solenoid valve body (1) is respectively provided with a valve seat body (2), a pilot pressure regulating valve (3) and a solenoid valve body (4); a flow channel (5) is provided in the valve seat body (2); a plurality of slots (6) are respectively provided on the inner wall of the flow channel (5); a plug-in plate (7) is movably inserted in each of the plurality of slots (6); one end of a connecting rod (8) is fixedly installed on the inner side of the plurality of plug-in plates (7); the other end of the plurality of connecting rods (8) is fixedly installed with a same fixing ring (9); a bearing (10) is provided in the fixing ring (9); a rotating rod (11) is provided in the bearing (10); and a rotating cleaning mechanism is provided on the rotating rod (11).

2. The valve seat of a relief solenoid valve according to claim 1, characterized in that: The top side of the valve seat body (2) is provided with a mounting groove (17), the mounting groove (17) is connected to a plurality of slots (6) in the flow channel (5), a piston sleeve (18) is provided in the mounting groove (17), and the bottom side of the piston sleeve (18) is fitted against the top side of the plurality of insert plates (7).

3. The valve seat of a relief solenoid valve according to claim 1, characterized in that: The rotary cleaning mechanism comprises a first fan blade (12), a second fan blade (13) and an auger (14); two first fan blades (12) are fixedly mounted on the rotary rod (11); the second fan blade (13) is fixedly mounted on the rotary rod (11); and the auger (14) is fixedly mounted on the rotary rod (11).

4. The valve seat of a relief solenoid valve according to claim 3, characterized in that: The diameter of the first fan blade (12) located below the rotating rod (11) is larger than the diameter of the first fan blade (12) located above it.

5. The valve seat of a relief solenoid valve according to claim 3, characterized in that: The auger (14) on the rotating rod (11) is located in the middle of the first blade (12) and the second blade (13), and the outer contact surface of the auger (14) is rotatably attached to the inner wall of the flow channel (5) and the piston sleeve (18).

6. The valve seat of a relief solenoid valve according to claim 1, characterized in that: The valve seat body (2) is provided with a damping through hole (15), the damping through hole (15) is connected to the flow channel (5), and a damping joint (16) is provided at one end of the damping through hole (15) on the valve seat body (2).

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