Electromagnetic cartridge reversing valve

Abstract

The utility model relates to the technical field of valves, in particular to an electromagnetic cartridge reversing valve which comprises a valve body, a valve cavity arranged on the valve body, an electromagnetic cavity, at least one oil inlet communicated with the valve cavity, at least two oil outlets, a valve moving in the valve cavity, an electromagnetic structure and a heat dissipation structure. The cooling cavity is formed between the heat dissipation structure and the valve body, the heat dissipation structure is at least provided with the liquid inlet and the liquid outlet which are communicated with the cooling cavity, and cooling liquid can be fed into the cooling cavity and discharged from the cooling cavity through the liquid inlet and the liquid outlet, so that heat dissipation is carried out on the valve body, and stable operation of the electromagnetic structure is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, especially a kind of electromagnetic plug-in reversing valve. BACKGROUND

[0002] Electromagnetic plug-in reversing valve is one of important components in hydraulic system, through the continuous power on and power off, electromagnetic plug-in reversing valve can control the reversing control of liquid.

[0003] At present, since electromagnetic plug-in reversing valve is used, electromagnetic assembly needs to be powered frequently to control the valve core activity of electromagnetic plug-in reversing valve, leading to electromagnetic assembly often appears heating phenomenon, influence the use of electromagnetic plug-in reversing valve, therefore, the problem needs to be solved. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies existing in the prior art, the utility model aims at providing a kind of electromagnetic plug-in reversing valve, to solve the problems in the above background technology.

[0005] The technical scheme of the utility model is realized as follows: a kind of electromagnetic plug-in reversing valve, comprising:

[0006] Valve body has valve cavity, electromagnetic cavity, at least one oil inlet and at least two oil outlets communicated with valve cavity;

[0007] Valve core, in the valve cavity, and can control at least one oil outlet and oil inlet communication;

[0008] Electromagnetic structure is installed in the electromagnetic cavity, and has the valve core piston shaft connected with the valve core;It further includes the heat dissipation structure installed on valve body, cooling cavity is formed between the heat dissipation structure and valve body, and the heat dissipation structure at least has liquid inlet and liquid outlet communicated with cooling cavity.

[0009] Preferably, the heat dissipation structure comprises:

[0010] Heat sink, with the valve body is integrally formed, and cooling cavity is formed between valve body;

[0011] Liquid inlet check valve is installed on the heat sink, and is communicated with cooling cavity, and has the liquid inlet;

[0012] Liquid outlet check valve is installed on the heat sink, and is communicated with cooling cavity, and has the liquid outlet;

[0013] Piston body, in the cooling cavity;

[0014] The electromagnetic structure further has a reciprocating piston shaft connected with the piston body; when the electromagnetic structure is powered and generates magnetism, the reciprocating piston shaft controls the piston body to move to a liquid discharging position, and the cooling liquid in the cooling cavity is discharged from the liquid discharging port; when the electromagnetic structure is powered off and loses magnetism, the reciprocating piston shaft controls the piston body to move to a liquid inletting position, and the cooling liquid is introduced from the liquid inletting port into the cooling cavity.

[0015] Preferably, the electromagnetic structure comprises:

[0016] An electromagnetic assembly composed of an iron core and an electromagnetic coil installed in the electromagnetic cavity, and dividing the electromagnetic cavity into a first cavity and a second cavity;

[0017] A valve core piston shaft slidingly arranged in the first cavity and having one end penetrating into the valve cavity from the first cavity and connected with the valve core;

[0018] A reciprocating piston shaft slidingly arranged in the second cavity and having one end penetrating into the cooling cavity from the second cavity and connected with the piston body;

[0019] A first spring arranged in the first cavity and connected between the valve core piston shaft and the electromagnetic assembly;

[0020] A second spring arranged in the second cavity and connected between the reciprocating piston shaft and the electromagnetic assembly.

[0021] Preferably, the piston body comprises:

[0022] An annular piston block coaxially arranged on the valve body and capable of axially reciprocating sliding on the valve body;

[0023] A connecting shaft coaxially arranged with the annular piston block;

[0024] A connecting block arranged at one end of the connecting shaft;

[0025] A plurality of connecting rods connected between the connecting block and the annular piston block;

[0026] Preferably, one end of the connecting shaft is threadedly connected with one end of the reciprocating piston shaft.

[0027] Preferably, one end of the heat dissipation body is threadedly connected with a threaded cap.

[0028] The utility model has at least the following beneficial effects:

[0029] 1. The utility model discloses a heat dissipation structure arranged on the electromagnetic plug-in mounting change-over valve, which can timely take away the heat generated during the operation of the electromagnetic plug-in mounting change-over valve, thereby ensuring that the electromagnetic plug-in mounting change-over valve can continuously operate for a long time.

[0030] 2. The heat dissipation structure of the utility model utilizes the liquid inlet to send the cooling liquid into the cooling cavity and contacts with the valve body, and the cooling liquid in the cooling cavity is discharged from the liquid discharge port, and the heat dissipation is completed, simultaneously, the piston of the utility model is also controlled by the electromagnetic assembly, that is to say, when the electromagnetic assembly is electrified, the piston body moves synchronously and introduces the cooling liquid from the liquid inlet into the cooling cavity to dissipate heat, when the electromagnetic assembly is powered off, the piston body is controlled to reset by the reciprocating piston shaft, and the cooling liquid after absorbing heat in the cooling cavity is extruded from the liquid discharge port, therefore, the utility model can realize the mutual synchronization with the heat production of the electromagnetic assembly when electrifying the valve body to dissipate heat. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor for the ordinary skilled in the art.

[0032] Figure 1 It is the structure schematic view of the embodiment 1 of the utility model;

[0033] Figure 2 It is the A-A sectional view of Figure 1

[0034] Figure 3 It is the structure schematic view of the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0035] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without the creative labor belong to the protection scope of the utility model.

[0036] Embodiment 1:

[0037] As shown in Figures 1-2 The utility model discloses an electromagnetic cartridge valve, which comprises:

[0038] A valve body 10 has a valve cavity 100, an electromagnetic cavity 101, at least one oil inlet 102 communicated with the valve cavity 100 and at least two oil outlets 103;

[0039] ​Valve core 11, moving in the valve cavity 100, and can control at least one oil outlet 103 and oil inlet 102 communication, valve core 11 has closed part 110, closed part 110 and oil inlet 102 always communicate, in the movement of closed part 110, open one of the oil outlet 103;

[0040] Electromagnetic structure, installed in the electromagnetic cavity 101, and has with the valve core 11 connection valve core piston shaft 20, the electromagnetic structure of this embodiment includes the iron core 21 installed in electromagnetic cavity 101, electromagnetic coil 22 and electromagnetic spring 23 connected with valve core piston shaft 200.

[0041] In this embodiment, also includes the heat dissipation structure 3 installed on the valve body 10, the cooling cavity 30 is formed between the heat dissipation structure 3 and the valve body 10, and the heat dissipation structure 3 has at least with the cooling cavity 30 communication liquid inlet 31 and liquid outlet 32.

[0042] Reference Figures 1-2 , this embodiment in the valve body cooling, by liquid inlet 31 to the cooling cavity into the cooling liquid (such as water), cooling liquid in the cooling cavity of the valve body cooling, and from the liquid outlet cooling cavity when, take away heat, complete the heat dissipation.

[0043] It should be noted that: liquid inlet can be connected with the cooling liquid supply source through the liquid inlet pipe, the liquid outlet can also be connected with the liquid outlet pipe for liquid discharge, this is prior art, therefore, in this embodiment will not be described.

[0044] Embodiment 2, the difference between embodiment 1 is:

[0045] As Figure 3 shown in this embodiment: the heat dissipation structure 3 includes:

[0046] Heat sink 40, with the valve body 10 is integrally formed, and the cooling cavity 30 is formed between the valve body 10 and the valve body 10;

[0047] Liquid inlet check valve 41, installed on the heat sink 40, and with the cooling cavity 30 communication, and has the liquid inlet 31;

[0048] Liquid outlet check valve 42, installed on the heat sink 40, and with the cooling cavity 30 communication, and has the liquid outlet 32;

[0049] Piston body, moving in the cooling cavity;

[0050] The electromagnetic structure further has a reciprocating piston shaft 43 connected with the piston body. When the electromagnetic structure is powered and generates magnetism, the reciprocating piston shaft 43 controls the piston body to move to a liquid discharge position, and the cooling liquid in the cooling cavity 30 is discharged from the liquid discharge port 32. When the electromagnetic structure is powered off and loses magnetism, the reciprocating piston shaft 43 controls the piston body to move to a liquid intake position, and the cooling liquid is introduced into the cooling cavity 30 from the liquid intake port 31.

[0051] In the embodiment, the electromagnetic structure comprises:

[0052] An electromagnetic assembly composed of an iron core 21 and an electromagnetic coil 22 installed in the electromagnetic cavity 101, and dividing the electromagnetic cavity 101 into a first cavity and a second cavity;

[0053] A valve core piston shaft 20 slidingly arranged in the first cavity, and one end of which penetrating into the valve cavity 100 from the first cavity and connected with the valve core 11;

[0054] A reciprocating piston shaft 43 slidingly arranged in the second cavity, and one end of which penetrating into the cooling cavity 30 from the second cavity and connected with the piston body;

[0055] A first spring 45 arranged in the first cavity, and connected between the valve core piston shaft 20 and the electromagnetic assembly;

[0056] A second spring 46 arranged in the second cavity, and connected between the reciprocating piston shaft 43 and the electromagnetic assembly.

[0057] In the embodiment, the reciprocating piston shaft 43 is provided with a magnet 47 opposite to the magnetic pole of the electromagnetic assembly.

[0058] In the embodiment, the piston body comprises:

[0059] An annular piston block 50 coaxially arranged on the valve body 10, and capable of axially reciprocating sliding on the valve body 10;

[0060] A connecting shaft 51 coaxially arranged with the annular piston block 50;

[0061] A connecting block 52 arranged at one end of the connecting shaft 51;

[0062] A plurality of connecting rods 53 connected between the connecting block 52 and the annular piston block 50;

[0063] One end of the connecting shaft 51 is threadedly connected with one end of the reciprocating piston shaft 43.

[0064] In the embodiment, one end of the heat sink 40 is threadedly connected with a threaded cap 6, and the piston body can be taken out for cleaning by disassembling the threaded cap.

[0065] Reference Figure 3 The principle of the embodiment is:

[0066] When the electromagnetic coil is powered, it attracts the valve core piston shaft to move close to the iron core, and switches out the oil port, at the same time, the reciprocating piston shaft is driven away from the iron core by the magnet opposite to the magnetic pole of the electromagnetic assembly, and the annular piston block is driven to move away from the liquid inlet direction through the connecting block and connecting rod, and a negative pressure is formed in the cooling cavity, and the cooling liquid is sucked into the cooling cavity from the inlet check valve, and the valve body is cooled, when the electromagnetic assembly is powered off, the reciprocating piston shaft is driven to be close to the iron core by the second spring, and the annular piston block is driven to move close to the liquid inlet direction through the connecting rod and the connecting block, and the cooling liquid in the cooling cavity is squeezed out from the outlet check valve.

[0067] It should be noted that: the liquid discharge position of the annular piston block in the embodiment is close to the liquid inlet or the liquid outlet, and the liquid inlet position is that the annular piston block is away from the liquid inlet or the liquid outlet.

[0068] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An electromagnetic cartridge valve, comprising: a valve body (10) having a valve cavity (100), an electromagnetic cavity (101), at least one oil inlet (102) communicating with the valve cavity (100), and at least two oil outlets (103); a valve core (11) movably arranged in the valve cavity (100) and capable of controlling the communication between the at least one oil outlet (103) and the oil inlet (102); an electromagnetic structure arranged in the electromagnetic cavity (101) and having a valve core piston shaft (20) connected with the valve core (11); characterized in that further comprising a heat dissipation structure (3) arranged on the valve body (10), a cooling cavity (30) being formed between the heat dissipation structure (3) and the valve body (10), and the heat dissipation structure (3) having at least an inlet (31) and an outlet (32) communicating with the cooling cavity (30).

2. An electromagnetic cartridge valve according to claim 1, characterized in that: The heat dissipation structure (3) comprises: a heat dissipation body (40) integrally formed with the valve body (10) and forming the cooling cavity (30) between the heat dissipation body (40) and the valve body (10); an inlet check valve (41) arranged on the heat dissipation body (40) and communicating with the cooling cavity (30) and having the inlet (31); an outlet check valve (42) arranged on the heat dissipation body (40) and communicating with the cooling cavity (30) and having the outlet (32); a piston body movably arranged in the cooling cavity (30); wherein the electromagnetic structure further has a reciprocating piston shaft (43) connected with the piston body; when the electromagnetic structure is powered and generates magnetism, the reciprocating piston shaft (43) controls the piston body to move to a discharging position and discharges the cooling liquid in the cooling cavity (30) from the outlet (32); when the electromagnetic structure is powered off and loses magnetism, the reciprocating piston shaft (43) controls the piston body to move to an inletting position and introduces the cooling liquid into the cooling cavity (30) from the inlet (31).

3. An electromagnetic cartridge valve according to claim 2, wherein: The electromagnetic structure comprises: an electromagnetic assembly composed of an iron core (21) and an electromagnetic coil (22) arranged in the electromagnetic cavity (101) and dividing the electromagnetic cavity (101) into a first cavity and a second cavity; the valve core piston shaft (20) slidingly arranged in the first cavity and having one end penetrating into the valve cavity (100) from the first cavity and connected with the valve core (11); the reciprocating piston shaft (43) slidingly arranged in the second cavity and having one end penetrating into the cooling cavity (30) from the second cavity and connected with the piston body; a first spring (45) arranged in the first cavity and connected between the valve core piston shaft (20) and the electromagnetic assembly; a second spring (46) arranged in the second cavity and connected between the reciprocating piston shaft (43) and the electromagnetic assembly.

4. An electromagnetic cartridge valve according to claim 2 or 3, characterised in that: The piston body comprises: an annular piston block (50) coaxially arranged on the valve body (10) and capable of axially reciprocating sliding on the valve body (10); a connecting shaft (51) coaxially arranged with the annular piston block (50); a connecting block (52) arranged on one end of the connecting shaft (51); a plurality of connecting rods (53) connected between the connecting block (52) and the annular piston block (50); wherein one end of the connecting shaft (51) is threadedly connected with one end of the reciprocating piston shaft (43).

5. An electromagnetic cartridge valve according to claim 4, wherein: One end of the heat sink (40) is screwed with a threaded cap (6).

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