Valve assembly and electromagnetic valve with same

Abstract

The utility model provides a valve assembly, which comprises a valve body, a valve core, a valve core, a valve core and a valve core, the valve core component is movably arranged in the valve cavity and is used for blocking or opening the valve port; the ejector rod is located on the side, away from the valve port, of the valve element component, and the valve element component is pushed by the ejector rod to move towards the valve port and block the valve port; the valve element component comprises a valve element body and a reinforcing piece, the reinforcing piece is connected to the side, close to the ejector rod, of the valve element body, and the ejector rod abuts against the reinforcing piece so as to push the valve element body to block the valve port. According to the valve assembly, the reinforcing piece with high strength is arranged on the valve element, when the electromagnetic valve is closed, the ejector rod directly collides with the reinforcing piece instead of the valve element, and the problem that the actual valve opening action is unqualified due to deformation of the valve element can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a valve component and a solenoid valve having the same. Background Art

[0002] The normally open solenoid valve includes a valve core, a push rod and a coil. The working principle of the normally open solenoid valve is to control the switch of the solenoid valve by whether the coil is energized. Under normal circumstances, when the coil is energized, it will generate an electromagnetic field, which in turn drives the push rod to hit the valve core, pushing the valve core to move toward the valve port, thereby closing the solenoid valve; when the coil is de-energized, the push rod moves in the opposite direction, the valve core resets, and the solenoid valve opens.

[0003] However, the valve cores of existing solenoid valves are mostly made of brass, and the push rods are made of stainless steel. If the push rod directly hits the valve core, the valve core will be deformed due to repeated opening and closing of the valve. Specifically, the upper end face of the valve core will be deformed by the impact, causing the actual contact surface between the valve core and the push rod to move downward. The push rod does not push the valve core far enough, and the sealing gasket cannot contact the valve port normally, resulting in internal leakage of the product or failure to close the valve. Utility Model Content

[0004] In view of the above problems, the utility model provides a valve assembly and a solenoid valve having the same.

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

[0006] A valve assembly comprises: a valve body having a valve cavity and a valve port communicating with the valve cavity;

[0007] A valve core component, movably disposed in the valve cavity, for blocking or opening the valve port;

[0008] A push rod is located at a side of the valve core component away from the valve port, and the valve core component moves toward the valve port and is sealed at the valve port under the push of the push rod;

[0009] Wherein, the valve core component includes a valve core body and a reinforcement member, the reinforcement member is connected to a side of the valve core body close to the push rod, and the push rod is supported by the reinforcement member to push the valve core body to seal the valve port.

[0010] In this way, by setting a strong reinforcement member on the valve core, when the solenoid valve is closed, the push rod directly hits the reinforcement member instead of the valve core, which can avoid the problem of unqualified actual valve opening action due to valve core deformation. By setting the reinforcement member, the overall anti-deformation ability of the valve core component is improved, and deformation caused by impact of the push rod is avoided, thereby ensuring the normal operation of the solenoid valve.

[0011] Furthermore, the strength of the reinforcement is greater than the strength of the valve core body.

[0012] It is understandable that by providing a reinforcing member on the valve core body with a strength greater than its own strength, the overall anti-deformation ability of the valve core component can be better improved.

[0013] Furthermore, a receiving groove extending inwardly is formed in the valve core body. The reinforcing member is disposed in the receiving groove and connected to the valve core body. The reinforcing member is located directly below the ejector rod, and the ejector rod moves toward the valve core body and abuts against the reinforcing member.

[0014] It is understandable that by forming a receiving groove on the valve core body for receiving the reinforcing member, the connection between the reinforcing member and the valve core body is made more stable while ensuring that the outer contour of the valve core body is adapted to other components of the valve assembly remains unchanged.

[0015] Furthermore, the receiving groove includes a first groove section and a second groove section that are sequentially connected in the direction toward the ejector rod. The inner diameter of the second groove section is larger than that of the first groove section; the reinforcing member is in interference fit with the first groove section, and the reinforcing member is in clearance fit with the second groove section.

[0016] With such a setting, the interference fit between the first groove section and the reinforcing member realizes the tight connection between the reinforcing member and the valve core, ensuring the stability of the connection between the two; the clearance fit between the second groove section and the reinforcing member facilitates the installation of the reinforcing member.

[0017] Furthermore, a transition inclined surface is provided between the first groove section and the second groove section, and the inner diameter of the transition inclined surface gradually increases from the first groove section toward the second groove section; and / or, the inner side wall of the port at one end of the receiving groove close to the ejector rod is an inverted conical ring surface.

[0018] It is understandable that by providing a transition inclined surface between the first groove section and the second groove section, the connection between the first groove section and the second groove section is made continuous, ensuring the structural firmness of the valve core body. The setting of the inverted conical ring surface facilitates the installation and removal of the reinforcing member.

[0019] Furthermore, the reinforcing member is a cylindrical structure, and at least one end of the reinforcing member along its own axis is provided with a guiding inclined surface.

[0020] With such a setting, the guiding inclined surfaces are provided at both the upper and lower ends of the reinforcing member, so that both the upper and lower ends of the reinforcing member can be adapted for installation.

[0021] Furthermore, along the axis of the reinforcing member, the reinforcing member is a structure with a T-shaped cross-section. The shape of the receiving groove is adapted to the reinforcing member. External threads are provided on the outer peripheral side wall of the reinforcing member, and internal threads are provided in the receiving groove. The reinforcing member is fixedly connected to the receiving groove by threading.

[0022] With such a setting, the reinforcing member is connected to the valve core body in a screwed form, and the structure is simple, which is convenient for replacing the reinforcing member.

[0023] Furthermore, the reinforcing member is in a prismatic structure or a cylindrical structure. The shape of the receiving groove is adapted to the shape of the reinforcing member. A lapping portion is provided on the circumferential side of the upper end surface of the reinforcing member. A lapping groove for receiving the lapping portion is provided above the receiving groove. A plurality of groups of screw holes are oppositely provided on the peripheral sides of the opening of the receiving groove and the lapping portion. The lapping portion is placed in the lapping groove, and the reinforcing member and the valve core body are connected by a plurality of bolts; the circumferential side wall of the reinforcing member is closely attached to the side wall of the receiving groove.

[0024] With such a setting, the reinforcing member is connected to the valve core by bolts, and the structure is simple, which is convenient for replacing the reinforcing member.

[0025] Furthermore, along the axial direction of the reinforcing member, the longitudinal section of the reinforcing member is in a convex shape, and the longitudinal section of the receiving groove is in a convex shape. A reinforcing member installation opening is formed on the side wall of the valve core. A plurality of first screw holes are formed on the top wall of the valve core body on the circumferential side of the top opening of the receiving groove. Second screw holes are formed on the upper end surface on the circumferential side of the convex portion of the reinforcing member. The second screw holes are arranged corresponding to the first screw holes, and a connecting member sequentially passes through the first screw holes and the second screw holes to connect and fix the reinforcing member and the valve core body.

[0026] Furthermore, a plurality of card slots extending along its own axial direction are formed on the circumferential side walls of the reinforcing member. A plurality of card strips adapted to the card slots are provided on the inner side wall of the receiving groove. The card strips are embedded in the oppositely arranged card slots, and the reinforcing member slides into the receiving groove along the card strips.

[0027] With such a setting, the up-and-down and left-and-right movement of the reinforcing member is restricted through the cooperation of the card slots and the card strips, and then the reinforcing member and the valve core are connected, and the assembly stability of the reinforcing member and the valve core is high.

[0028] Furthermore, a plurality of through holes extending along its axial direction are formed on the reinforcing member.

[0029] With such a setting, the arrangement of the through holes can ensure the flow of the fluid in the upper and lower parts of the valve core and reduce the medium resistance when the valve core moves for opening and closing the valve.

[0030] An electromagnetic valve having the above-mentioned valve assembly.

[0031] The valve assembly of the present utility model is provided with a reinforcing member on the valve core. The strength of the reinforcing member is greater than that of the valve core. The upper end surface of the reinforcing member is in the same horizontal plane as the upper end surface of the valve core. The position of the upper end surface of the reinforcing member is the position where the ejector rod strikes. In this way, when the ejector rod moves downward, it will directly strike on the reinforcing member, avoiding the direct impact between the ejector rod and the valve core, and can avoid the problem that the actual valve opening action is unqualified due to the deformation of the valve core. Brief Description of the Drawings

[0032] Figure 1 It is a schematic structural diagram of the valve assembly provided by an embodiment of the present utility model.

[0033] Figure 2 is Figure 1 An enlarged schematic view of part A in

[0034] Figure 3 is Figure 2 A schematic structural diagram of the receiving groove in

[0035] Figure 4 is Figure 2 A schematic structural diagram of the valve core body in

[0036] Figure 5 is Figure 2 A schematic structural diagram of the reinforcing member in

[0037] Figure 6 It is a schematic longitudinal sectional structure diagram after the installation of the reinforcing member provided by an embodiment of the present utility model.

[0038] Figure 7 It is a schematic longitudinal sectional structure diagram after the installation of the reinforcing member provided by an embodiment of the present utility model.

[0039] Figure 8 It is a schematic longitudinal sectional structure diagram after the installation of the reinforcing member provided by an embodiment of the present utility model.

[0040] Figure 9 It is a schematic structural diagram of the receiving groove provided by an embodiment of the present utility model.

[0041] Figure 10 is Figure 7 A schematic structural diagram of the reinforcing member provided in

[0042] Among them, 1-valve core, 2-reinforcing member, 3-ejector rod, 4-bolt, 5-valve body, 11-receiving groove, 111-first groove section, 112-second groove section, 113-transition inclined surface, 114-card strip, 115-inverted conical ring surface, 21-through hole, 22-guiding inclined surface, 23-card slot, 24-lap joint part. Detailed Description of the Preferred Embodiments

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0044] A valve assembly, comprising:

[0045] The valve body 5 has a valve cavity and a valve port communicating with the valve cavity;

[0046] A valve core component, movably disposed in the valve cavity, for blocking or opening the valve port;

[0047] The push rod 3 is located at a side of the valve core component away from the valve port. The valve core component moves toward the valve port and is blocked at the valve port under the push of the push rod 3.

[0048] The valve core component includes a valve core body 1 and a reinforcement member 2, wherein the reinforcement member 2 is connected to a side of the valve core body 1 close to the push rod 3, and the push rod 3 is supported by the reinforcement member 2 to push the valve core body 1 to block the valve port.

[0049] The strength of the reinforcement member 2 is greater than the strength of the valve core body 1. It is understandable that by providing a reinforcement member 2 with greater strength than the valve core body 1 on the valve core body 1, when the solenoid valve is closed, the push rod 3 directly hits the reinforcement member 2 instead of the valve core body 1, which can avoid the problem of unqualified actual valve opening action due to deformation of the valve core body 1. That is, by providing a reinforcement member, the overall anti-deformation ability of the valve core component is improved, deformation caused by impact of the push rod is avoided, and the normal operation of the solenoid valve is ensured.

[0050] like Figures 1 to 5 As shown, in some embodiments, the reinforcement member 2 is disposed inside the valve core body 1. Specifically, a receiving groove 11 extending toward the inside of the valve core body 1 is provided on the valve core body 1, and the reinforcement member 2 is placed in the receiving groove 11 and connected to the valve core body 1. The reinforcement member 2 is located directly below the push rod 3, and the push rod 3 moves toward the direction close to the valve core body 1 and abuts against the reinforcement member 2. It can be understood that by providing the receiving groove 11 for accommodating the reinforcement member 2 on the valve core body 1, the connection between the reinforcement member 2 and the valve core body 1 is made more stable while ensuring that the outer contour of the valve core body 1 adapted to other components of the valve assembly remains unchanged.

[0051] In some embodiments, the receiving groove 11 includes a first groove section 111 and a second groove section 112 that are sequentially connected and arranged in a direction approaching the ejector rod 3. The inner diameter of the second groove section 112 is larger than that of the first groove section 111. The reinforcing member 2 is in interference fit with the first groove section 111, and the reinforcing member 2 is in clearance fit with the second groove section 112.

[0052] It can be understood that the inner diameter of the first groove section 111 is equal to the outer diameter of the reinforcing member 2, realizing the interference fit setting between the first groove section 111 and the reinforcing member 2, achieving the tight fit connection between the reinforcing member 2 and the valve core 1, fixedly connecting the reinforcing member 2 and the valve core body 1, and ensuring the stability of their connection; the inner diameter of the second groove section 112 is slightly larger than the outer diameter of the reinforcing member 2, enabling the second groove section 112 to be in clearance fit with the reinforcing member 2, realizing the reduction of the frictional force between the reinforcing member 2 and the receiving groove 11 within a certain range, and facilitating the installation of the reinforcing member 2. Such a setting not only ensures the connection stability between the reinforcing member 2 and the receiving groove 11 but also reduces the installation difficulty of the reinforcing member 2.

[0053] As Figures 1 to 5 shown, in some embodiments, a transition inclined surface 113 is provided between the first groove section 111 and the second groove section 112, and the inner diameter of the transition inclined surface 113 gradually increases from the first groove section 111 towards the second groove section 112; the inner side wall of the port at one end of the receiving groove 11 close to the ejector rod 3 is an inverted conical ring surface 115. Of course, in other embodiments, the first groove section 111 and the second groove section 112 may also be directly connected. It can be understood that by connecting the first groove section 111 and the second groove section 112 through the transition inclined surface 113, the connection continuity between the first groove section 111 and the second groove section 112 is ensured, and further the structural firmness of the valve core body 1 is ensured; the design of the inverted conical ring surface 115 can reduce the frictional force between the reinforcing member 2 and the port of the receiving groove 11, facilitating the installation and removal of the reinforcing member 2.

[0054] Furthermore, the reinforcing member 2 is a cylindrical structure, and at least one end of the reinforcing member 2 along its own axial direction is provided with a guiding inclined surface 22.

[0055] In some embodiments, the reinforcing member 2 is a steel seat with a cylindrical structure. The reinforcing member 2 may be provided with a guiding inclined surface 22 only at one end along its own axial direction, or may be provided with guiding inclined surfaces 22 at both ends along its own axial direction.

[0056] In some embodiments, in order to enable both ends of the reinforcing member 2 to be assembled along its own axial direction, guiding inclined surfaces 22 are provided at both ends thereof.

[0057] Of course, in other embodiments, the reinforcing member 2 may also have a square structure, and the shape of the receiving groove 11 only needs to be adapted to the shape of the reinforcing member 2.

[0058] As Figure 6 shown, in one embodiment, along the axial direction of the reinforcing member 2, the reinforcing member 2 has a T-shaped cross-sectional structure, the shape of the receiving groove 11 is adapted to the reinforcing member 2, an external thread is provided on the outer peripheral side wall of the reinforcing member 2, an internal thread is provided in the receiving groove 11, and the reinforcing member 2 is threadedly connected and fixed to the receiving groove 11.

[0059] It can be understood that the transverse portion of the T-shaped reinforcing member 2 forms a limiting connection with the valve core body 1, and the external thread on the vertical portion of the reinforcing member 2 is screwed with the internal thread of the receiving groove 11, which facilitates the replacement of the reinforcing member 2.

[0060] As Figure 6 shown, in one embodiment, the reinforcing member 2 has a prismatic structure or a cylindrical structure, the shape of the receiving groove 11 is adapted to the shape of the reinforcing member 2, a lapping portion 24 is provided on the peripheral side of the upper end surface of the reinforcing member 2, a lapping groove for receiving the lapping portion 24 is provided above the receiving groove 11, a plurality of screw holes are relatively provided on the peripheral side of the opening of the receiving groove 11 and the lapping portion 24, the lapping portion 24 is placed in the lapping groove, and the reinforcing member 2 and the valve core body 1 are connected by a plurality of bolts 4; the circumferential side wall of the reinforcing member 2 is closely attached to the side wall of the receiving groove 11.

[0061] It can be understood that the lapping portion 24 enables the reinforcing member 2 to form a limiting connection with the valve core body 1. Connecting the reinforcing member 2 and the valve core body 1 by a plurality of bolts 4 has a simple structure and at the same time makes the disassembly and installation of the reinforcing member 2 more convenient to operate, facilitating the replacement of the reinforcing member 2.

[0062] Furthermore, the circumferential side wall of the reinforcing member 2 is closely attached to the side wall of the receiving groove 11. With this setting, the assembly stability of the reinforcing member 2 and the valve core body 1 is ensured.

[0063] As Figure 8 shown, in one embodiment, along the axial direction of the reinforcing member 2, the longitudinal section of the reinforcing member 2 is convex-shaped, the longitudinal section of the receiving groove 11 is convex-shaped, an installation opening for the reinforcing member 2 is provided on the side wall of the valve core body 1, a plurality of first screw holes are provided on the top wall of the top opening of the receiving groove 11, a second screw hole is provided on the upper end surface of the convex portion of the reinforcing member 2, the second screw hole corresponds to the first screw hole, and a connecting member sequentially passes through the first screw hole and the second screw hole to connect and fix the reinforcing member 2 and the valve core body 1. Specifically, the connecting member can be selected as the bolt 4 here.

[0064] As shown in Figure 9 and Figure 10 shown, in some embodiments, a clamping groove 23 extending along its own axial direction is formed on the peripheral side wall of the reinforcing member 2, and a plurality of clamping strips 114 adapted to the clamping groove 23 are provided on the circumferential inner side wall of the receiving groove 11. The clamping strips 114 are inserted into the oppositely arranged clamping grooves 23, and the reinforcing member 2 slides into the receiving groove 11 along the clamping strips 114.

[0065] Furthermore, a clamping groove 23 is also formed on the bottom wall of the reinforcing member 2. Correspondingly, a clamping strip 114 adapted to the clamping groove 23 is provided on the bottom wall of the receiving groove 11.

[0066] It can be understood that the up-and-down and left-and-right movement of the reinforcing member 2 is restricted through the cooperation of the clamping groove 23 and the clamping strip, and thus the reinforcing member 2 is connected to the valve core body 1.

[0067] In all the above embodiments, a plurality of through holes 21 extending along its axial direction are provided on the reinforcing member 2. It can be understood that the provision of the through holes 21 can ensure the fluid flow between the upper and lower parts of the valve core body and reduce the medium resistance during the movement of the valve core body when opening and closing the valve. In this embodiment, the through holes 21 are circular. Of course, in other embodiments, the through holes 21 can also be of other shapes.

[0068] The number of the through holes 21 can be determined according to the actual situation. In all the above embodiments, the number of the through holes 21 is 2, and the two through holes 21 are symmetrically arranged with respect to the central axis of the reinforcing member 2. In addition, the two through holes 21 can be arranged at intervals along the length or width direction of the reinforcing member 2, or can be arranged at intervals along the diagonal direction of the reinforcing member 2.

[0069] An electromagnetic valve having the valve assembly described in any of the above embodiments.

[0070] Those of ordinary skill in the art should understand that the above description is only specific embodiments of the present invention and is not used to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A valve assembly, characterized in that, include: A valve body (5) having a valve cavity and a valve port communicating with the valve cavity; A valve core component, movably disposed in the valve cavity, for blocking or opening the valve port; A push rod (3) is located on a side of the valve core component away from the valve port, and the valve core component moves toward the valve port under the push of the push rod (3) and seals the valve port; The valve core component comprises a valve core body (1) and a reinforcement member (2), wherein the reinforcement member (2) is connected to a side of the valve core body (1) close to the push rod (3), and the push rod (3) is supported by the reinforcement member (2) to push the valve core body (1) to block the valve port.

2. The valve assembly according to claim 1, characterized in that, The strength of the reinforcement member (2) is greater than the strength of the valve core body (1).

3. A valve assembly according to claim 1, wherein The valve core body (1) is provided with a receiving groove (11) extending inwardly thereof, the reinforcing member (2) is placed in the receiving groove (11) and connected to the valve core body (1), the reinforcing member (2) is located directly below the push rod (3), and the push rod (3) moves in a direction approaching the valve core body (1) and abuts against the reinforcing member (2).

4. The valve assembly according to claim 3, wherein The accommodating groove (11) comprises a first groove section (111) and a second groove section (112) which are arranged in series in a direction close to the push rod (3); the inner diameter of the second groove section (112) is larger than the inner diameter of the first groove section (111); the reinforcing member (2) and the first groove section (111) are interference fit, and the reinforcing member (2) and the second groove section (112) are clearance fit.

5. A valve assembly according to claim 4, wherein, A transition slope (113) is provided between the first groove section (111) and the second groove section (112), and the inner diameter of the transition slope (113) gradually increases in a direction from the first groove section (111) toward the second groove section (112); And / or, the inner side wall of the port of the accommodating groove (11) close to one end of the push rod (3) is in the form of an inverted cone annular surface (115).

6. A valve assembly according to claim 4, characterized in that, The reinforcement member (2) is a cylindrical structure, and at least one end of the reinforcement member (2) along its own axial direction is provided with a guide inclined surface (22).

7. A valve assembly according to claim 3, wherein, Along the axial direction of the reinforcement member (2), the cross-sectional shape of the reinforcement member (2) is T-shaped, the shape of the receiving groove (11) is compatible with the reinforcement member (2), an external thread is provided on the outer peripheral side wall of the reinforcement member (2), and an internal thread is provided in the receiving groove (11), and the reinforcement member (2) and the receiving groove (11) are threadedly connected and fixed.

8. A valve assembly according to claim 3, characterized in that The reinforcing member (2) is a prismatic structure or a cylindrical structure. The shape of the receiving groove (11) matches the shape of the reinforcing member (2). An overlapping portion (24) is provided on the circumferential side of the upper end surface of the reinforcing member (2). An overlapping groove for accommodating the overlapping portion (24) is provided above the receiving groove (11). A plurality of groups of screw holes are provided on the open circumferential sides of the receiving groove (11) and on the overlapping portion (23). The overlapping portion (24) is placed in the overlapping groove. The reinforcing member (2) is connected to the valve core body (1) by a plurality of bolts (4). The circumferential side wall of the reinforcing member (2) is arranged in close contact with the side wall of the receiving groove (11).

9. A valve assembly according to claim 3, characterized in that, Axially along the reinforcing member (2), the longitudinal section of the reinforcing member (2) is convex-shaped, the longitudinal section of the receiving groove (11) is convex-shaped, a reinforcing member mounting opening is provided on the side wall of the valve core (1), a plurality of first screw holes are provided on the top wall of the valve core body (1) on the circumferential side of the top opening of the receiving groove (11), a second screw hole is provided on the upper end surface on the circumferential side of the convex portion of the reinforcing member (2), the second screw hole corresponds to the first screw hole, and a connecting member sequentially passes through the first screw hole and the second screw hole to connect and fix the reinforcing member (2) to the valve core body (1).

10. A valve assembly according to claim 3, characterized in that, A plurality of card slots (23) extending along its own axis are provided on the peripheral side walls of the reinforcing member (2), and a plurality of card strips (114) adapted to the card slots (23) are provided on the circumferential inner side wall of the receiving groove (11). The plurality of card strips (114) are inserted into the relatively arranged card slots (23), and the reinforcing member (2) slides into the receiving groove (11) along the card strips (114).

11. A valve assembly according to any one of claims 1 to 10, characterized in that, A plurality of through holes (21) extending along its axis are provided on the reinforcing member (2).

12. A solenoid valve, characterized in that the solenoid valve has the valve assembly according to claim 11.

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