A solenoid unloading valve

Abstract

The utility model relates to the technical field of electromagnetic valves, and in particular to an electromagnetic unloading valve. The utility model includes a valve body, and a valve core arranged in the valve body, an opening and closing mechanism is assembled between the valve body and the valve core, and the opening and closing mechanism includes a spring, an electromagnet, an armature and an electrical control component, one end of the valve core is sleeved with a spring, one end of the spring is fixed to the inner side of the valve body, and the other end of the spring is fixed to the valve core, the inner side of the valve body and the position deviating from the valve core is slidably connected with the armature, and the inner side of the valve body and the position corresponding to the armature is provided with an electromagnet. Through the structural design of the opening and closing mechanism, the utility model makes it easy for the device to quickly adjust the valve core, can quickly respond to the opening and closing of the channel port P and the channel port T, and can protect the channel port P and the channel port T during the waiting period when the device is idle or put into use, so as to prevent the control accuracy of the device from being affected during the later use, thereby improving safety.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic unloading valve. Background Art

[0002] The electromagnetic unloading valve is a pressure release device that uses electromagnetic force to control the hydraulic system. Its main components include electromagnet, valve body, valve core, spring, etc. When the electromagnetic coil is energized, the electromagnet generates a magnetic field, causing the armature to drive the valve core to move;

[0003] For example, a grease-gas separation electromagnetic unloading valve for a wind power lubrication system with a publication (announcement) number of CN217683258U includes a valve body assembly, a safety relief valve assembly, an electromagnet assembly, and an electrical control assembly; an oil return hole is provided on the valve body of the valve body assembly, a main channel is provided in the valve body, a first channel is provided between the main channel and the safety relief valve assembly, a second channel is provided between the safety relief valve assembly and the oil return hole, a third channel is connected between the electromagnet working chamber in the electromagnet assembly and the second channel, a fourth channel is connected between the first channel and the third channel, a valve stem is provided in the third channel, a high-pressure sealing ring is provided on the inner wall of the third channel, and an annular unloading groove is provided at the intersection of the third channel and the fourth channel;

[0004] In summary, it can be seen that the following technical problems exist in the prior art: Although the above-mentioned prior art can achieve rapid unloading during use, when the electromagnetic unloading valve leaves the factory or is idle, due to the lack of protection for the main channel opening, dust and stains can easily enter the valve body, resulting in low accuracy of later opening and closing control. For this reason, we propose an electromagnetic unloading valve. Utility Model Content

[0005] The purpose of the utility model is to provide an electromagnetic unloading valve to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An electromagnetic unloading valve comprises a valve body and a valve core arranged in the valve body, an opening and closing mechanism is assembled between the valve body and the valve core, the opening and closing mechanism comprises a spring, an electromagnet, an armature and an electrical control component, a spring is sleeved on one end of the valve core, one end of the spring is fixed to the inner side of the valve body, and the other end of the spring is fixed to the valve core, an armature is slidably connected to the inner side of the valve body and at a position deviating from the valve core, an electromagnet is arranged on the inner side of the valve body and at a position corresponding to the armature, an electrical control component is fixed to the top of the valve body, and the electrical control component is electrically connected to the electromagnet.

[0008] Preferably, an O-ring and a retaining ring are sleeved on the outer side of the valve core, the O-ring and the retaining ring are fixed to the valve body, and the inner sides of the O-ring and the retaining ring are interference fit with the valve core.

[0009] Preferably, a sealing head is provided at the end of the valve core.

[0010] Preferably, a channel port P and a channel port T are fixed on one side of the valve body, and both the channel port P and the channel port T are communicated with the inner side of the valve body.

[0011] Preferably, one end of the channel opening P and the channel opening T are both equipped with a protective mechanism, and the protective mechanism is used to block the channel opening P and the channel opening T when idle.

[0012] Preferably, the protective mechanism includes a protective sleeve, a pad, a metal spring and an annular notch, one end of the channel opening P and the channel opening T are both sleeved with a protective sleeve, a plurality of pads are evenly fixed on the inner side of the protective sleeve, one side of the pad is slidably connected with a metal spring, one side of the metal spring is integrally fixed with an arc-shaped protrusion, the outer sides of the channel opening P and the channel opening T are both provided with an annular notch, and the arc-shaped protrusions are slidably connected to the annular notch.

[0013] Preferably, sliding beads are fixed to the side surfaces of both ends of the metal spring sheet, and strip grooves are provided on both sides of the interior of the pad, and the sliding beads are slidably connected to the strip grooves.

[0014] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0015] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0016] The utility model makes it easy to quickly adjust the valve core through the structural design of the opening and closing mechanism of the device, can quickly respond to the opening and closing of the channel port P and the channel port T, and can protect the channel port P and the channel port T during the idle period or the waiting period for the device to be put into use, so as to prevent the control accuracy of the device from being affected during the later use, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure of the channel opening T and the protective sleeve of the utility model;

[0021] Figure 4 It is a schematic diagram of the cutaway structure of the protective cover of the utility model;

[0022] Figure 5 It is a schematic diagram of the connection structure of the metal spring piece and the sliding ball of the utility model;

[0023] Figure 6 It is a schematic diagram of the control principle of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. valve body; 2. valve core; 3. O-ring; 4. retaining ring; 5. spring; 6. electromagnet; 7. armature; 8. plugging head; 9. electrical control component; 10. channel port P; 11. channel port T; 12. protective cover; 13. gasket; 14. metal spring; 15. sliding ball; 16. strip groove; 17. annular notch. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] Example 1

[0028] Reference Figure 1-6 A solenoid unloading valve comprises a valve body 1 and a valve core 2 arranged in the valve body 1, an opening and closing mechanism is assembled between the valve body 1 and the valve core 2, the opening and closing mechanism comprises a spring 5, an electromagnet 6, an armature 7 and an electrical control component 9, one end of the valve core 2 is sleeved with a spring 5, one end of the spring 5 is fixed to the inner side of the valve body 1, the other end of the spring 5 is fixed to the valve core 2, the inner side of the valve body 1 and the position deviating from the valve core 2 is slidably connected with the armature 7, the inner side of the valve body 1 and the position corresponding to the armature 7 is provided with an electromagnet 6, the top of the valve body 1 is fixed with an electrical control component 9, the electrical control component 9 is electrically connected to the electromagnet 6, the specific structure and circuit principle related to the electrical control component 9 are existing mature technologies, which will not be elaborated here.

[0029] The outer side of the valve core 2 is sleeved with an O-ring 3 and a retaining ring 4, which are both fixed to the valve body 1. The inner sides of the O-ring 3 and the retaining ring 4 are interference fit with the valve core 2. Through the arrangement of the O-ring 3 and the retaining ring 4, when the valve core 2 moves inside the valve body 1, the outer side is always sealed and connected to the inner side of the valve body 1.

[0030] A plugging head 8 is provided at the end of the valve core 2 . The provision of the plugging head 8 facilitates the valve core 2 to fit and plug the flow opening in the valve body 1 .

[0031] A channel port P10 and a channel port T11 are fixed on one side of the valve body 1 , and both the channel port P10 and the channel port T11 are connected to the inner side of the valve body 1 . By opening and closing the electrical control component 9 , the channel port P10 and the channel port T11 can be closed and connected.

[0032] Example 2

[0033] Embodiment 1 is further optimized, specifically, as Figure 3-5 As shown, one end of the channel opening P10 and the channel opening T11 are both equipped with a protection mechanism, and the protection mechanism is used to block the channel opening P10 and the channel opening T11 when idle.

[0034] The protective mechanism includes a protective sleeve 12, a pad 13, a metal spring 14 and an annular notch 17. The protective sleeve 12 is sleeved on one end of the channel opening P10 and the channel opening T11. A plurality of pads 13 are evenly fixed on the inner side of the protective sleeve 12. One side of the pad 13 is slidably connected with a metal spring 14. One side of the metal spring 14 is integrally fixed with an arc-shaped protrusion. An annular notch 17 is provided on the outer side of the channel opening P10 and the channel opening T11. The arc-shaped protrusions are slidably connected to the annular notch 17. A rubber pad is fixed on one end of the inner side of the protective sleeve 12. It can be understood that when the arc-shaped protrusion on the metal spring 14 is connected to the annular notch 17, the rubber pad on the inner side of the protective sleeve 12 is in contact with the channel opening P10 and the channel opening T11 to form a sealing effect.

[0035] Sliding balls 15 are fixed to the sides of both ends of the metal spring piece 14, and strip grooves 16 are opened on both sides inside the pad 13. The sliding balls 15 are slidably connected to the strip grooves 16. The setting of the strip grooves 16 can provide a guide for the movement of the sliding balls 15.

[0036] From the above, we can know that:

[0037] The utility model aims at the technical problem that the existing technology can realize rapid unloading during use, but when the electromagnetic unloading valve leaves the factory or is idle, due to the lack of protection for the main channel opening, dust and stains can easily enter the valve body, resulting in low precision of later opening and closing control; the technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solutions is:

[0038] When in use, when the electrical control assembly 9 is turned on, the electromagnet 6 generates a magnetic field, causing the armature 7 to drive the valve core 2 to move, and at the same time, the spring 5 is squeezed to deform, closing the oil leakage channel in the valve body 1, at which time the channel port P10 and the channel port T11 are closed; when the electrical control assembly 9 is powered off, the spring force generated by the spring 5 causes the armature 7 to drive the valve core 2 to move and reset, at which time the channel port P10 and the channel port T11 are connected;

[0039] When the device leaves the factory or is idle, the protective sleeve 12 is aligned with the ends of the channel openings P10 and T11, and then the protective sleeve 12 is put on the outside of the channel openings P10 and T11, and then under the guidance of the arc-shaped protrusion, the metal spring 14 drives the sliding ball 15 to slide along the inside of the strip groove 16, and at the same time the metal spring 14 deforms and contracts, so that the arc-shaped protrusion is stuck on the outside of the annular notch 17, so that the protective sleeve 12 protects the ends of the channel openings P10 and T11 and prevents dust and stains from entering the valve body 1.

[0040] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects:

[0041] The utility model uses the structural design of the opening and closing mechanism to facilitate rapid adjustment of the valve core 2, can respond quickly to the opening and closing of the channel ports P10 and T11, and can protect the channel ports P10 and T11 during the idle or waiting period of the device to be put into use, thereby preventing the control accuracy of the device from being affected during later use, thereby improving safety.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An electromagnetic unloading valve, characterized in that: The invention comprises a valve body (1) and a valve core (2) arranged in the valve body (1); an opening and closing mechanism is arranged between the valve body (1) and the valve core (2); the opening and closing mechanism comprises a spring (5), an electromagnet (6), an armature (7) and an electrical control component (9); one end of the valve core (2) is sleeved with a spring (5); one end of the spring (5) is fixed to the inner side of the valve body (1); the other end of the spring (5) is fixed to the valve core (2); the armature (7) is slidably connected to the inner side of the valve body (1) and at a position deviating from the valve core (2); the electromagnet (6) is arranged on the inner side of the valve body (1) and at a position corresponding to the armature (7); the electrical control component (9) is fixed to the top of the valve body (1); the electrical control component (9) is electrically connected to the electromagnet (6); a channel port P (10) and a channel port T (11) are fixed to one side of the valve body (1); the channel port P (10) is connected to the valve core (2); the channel port T (11) is connected to the valve core (2); the channel port P (10) is connected to the valve core (2); the electromagnet (6 ... ) and the channel opening T (11) are both in communication with the inner side of the valve body (1); one end of each of the channel openings P (10) and T (11) is equipped with a protective mechanism, which is used to block the channel openings P (10) and T (11) when not in use; the protective mechanism comprises a protective sleeve (12), a gasket (13), a metal spring sheet (14) and an annular notch (17); one end of each of the channel openings P (10) and T (11) is sleeved with a protective sleeve (12); a plurality of gaskets (13) are evenly fixed on the inner side of the protective sleeve (12); one side of each of the gaskets (13) is slidably connected with a metal spring sheet (14); one side of each of the metal spring sheets (14) is integrally fixed with an arc-shaped protrusion; an annular notch (17) is provided on the outer side of each of the channel openings P (10) and T (11); and the arc-shaped protrusion is slidably connected with the annular notch (17).

2. The electromagnetic unloading valve according to claim 1, characterized in that: The outer side of the valve core (2) is sleeved with an O-type sealing ring (3) and a retaining ring (4); the O-type sealing ring (3) and the retaining ring (4) are both fixed to the valve body (1); and the inner sides of the O-type sealing ring (3) and the retaining ring (4) are interference fit with the valve core (2).

3. The electromagnetic unloading valve according to claim 2, characterized in that: A sealing head (8) is provided at the end of the valve core (2).

4. The electromagnetic unloading valve according to claim 1, characterized in that: Sliding beads (15) are fixed to the side surfaces at both ends of the metal spring sheet (14), and strip grooves (16) are provided on both sides inside the pad (13), and the sliding beads (15) are slidably connected to the strip grooves (16).

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