Electromagnetic valve element with high density performance

Abstract

The utility model discloses an electromagnetic valve core with high density performance, which belongs to the technical field of electromagnetic valve cores, and comprises a valve core main body, a table-shaped groove arranged at the bottom end of the valve core main body, a communicated cylindrical clamping groove arranged at the bottom of the table-shaped groove, and a sealing pad fixedly arranged at the bottom end of the valve core main body and used for sealing a valve port, the sealing pad comprises a clamping shaft, and the lower end of the sealing pad is connected with a rubber pad. The clamping shaft is inserted into the cylindrical clamping groove, and the clamping shaft and the valve element body are fixedly connected through an anti-disengaging bolt penetrating through the clamping shaft and the valve element body. According to the technical scheme, clamping connection can be achieved through the clamping effect between the cylindrical clamping groove and the clamping shaft, then through connection of the anti-disengaging bolt ensures firmness of clamping connection between the cylindrical clamping groove and the clamping shaft, the sealing pad cannot be disengaged from the valve element body even if the sealing pad deforms in the using process, when the valve port is sealed, the rubber pad directly makes contact with the valve port, and the sealing effect is good. The sealing performance of plugging is ensured through deformation, the rubber mat can be tightly attached to the valve port, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valve cores, in particular to an electromagnetic valve core with high density performance. Background Art

[0002] The solenoid valve core, also known as the valve core or piston, is the core component of a solenoid valve. It is typically made of materials such as stainless steel, copper, and iron, and is mounted on the electromagnet. The solenoid valve core's primary function is to control the flow and direction of the medium. Through electromagnetic action, it achieves various functions, including opening and closing the valve, controlling the flow of the medium, regulating the flow rate, and preventing the reverse flow of the medium.

[0003] The utility model with announcement number CN202646783U discloses an inner core of an electromagnetic valve, which consists of an iron rod and two rubber gaskets. The iron rod is a cylinder with multiple planar ventilation grooves on the outer circumference. The upper and lower end faces of the iron rod are respectively provided with straight circular blind holes. The gasket is a straight circular piece. The two gaskets are respectively installed in the blind holes at the upper and lower ends of the iron rod. The side walls of the two blind holes on the iron rod are provided with straight wall annular grooves from the middle to the bottom. The two gaskets are provided with conical outer flanges from large to small from the middle to one end face. The outer flanges of the two gaskets are respectively stuck in the straight wall annular grooves of the corresponding blind holes of the iron rod to prevent the gaskets from falling off during use.

[0004] The gasket of the above-mentioned valve core and the blind hole are only clamped together by the protruding structure on the gasket. Although a fixed connection between the gasket and the blind hole can be achieved, it is not reliable. When the gasket is deformed or the protruding structure is damaged during use, the gasket will fall off the iron rod directly, causing the valve core to lose the ability to control on and off. In addition, since the gasket is flush with the bottom end of the iron rod, when the gasket is deformed and concave, the bottom of the iron rod will directly contact the valve body, making it impossible for the gasket to fit into the valve port, resulting in poor sealing. Therefore, a high-density electromagnetic valve core is proposed to address the above problems. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a high-density electromagnetic valve core, which can achieve a clamping connection by the clamping action between the cylindrical clamping groove and the clamping shaft when installing the closing gasket, and then ensure the firmness of the clamping between the cylindrical clamping groove and the clamping shaft by a through-connection to prevent the bolt from falling off, so that the closing gasket cannot be separated from the valve core body even if it is deformed during use, thereby improving the reliability during use. In addition, when closing the valve port, the rubber gasket is in direct contact with the valve port, and the airtightness of the seal is ensured by deformation, and pressure can be applied to the bottom end of the valve core body to make the rubber gasket fit tightly against the valve port, thereby improving the sealing effect, and solving the technical problems in the prior art that the fixed connection between the gasket and the valve core is unreliable and easy to fall off during use, causing the valve core to lose the ability to control on and off, and when the gasket is deformed and concave, it will not be able to fit tightly against the valve port, resulting in reduced sealing performance.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] A high-density electromagnetic valve core, including a valve core body, a trapezoidal groove is provided at the bottom end of the valve core body, a connected cylindrical slot is provided at the bottom of the trapezoidal groove, a closing gasket is fixedly installed at the bottom end of the valve core body to seal the valve port, a receiving part is installed at the upper end of the valve core body, and its upper cover is provided with a top cover, and a sealing ring is sleeved between the valve core body, the receiving part and the top cover, wherein the closing gasket includes a clamping shaft, a rubber gasket is connected to the lower end of the clamping shaft, the clamping shaft is inserted into the cylindrical slot, the rubber gasket is arranged in the trapezoidal groove, and the clamping shaft and the valve core body are fixedly connected by an anti-disengagement bolt passing through the two.

[0008] Through the above-mentioned structural form, the clamping connection can be achieved by the clamping action between the cylindrical clamping groove and the clamping shaft, and then the firmness of the clamping between the cylindrical clamping groove and the clamping shaft is ensured by the through connection to prevent the bolt from disengaging, so that even if the closing gasket is deformed during use, it cannot be separated from the valve core body, thereby improving the reliability during use. In addition, when closing the valve port, the rubber gasket is in direct contact with the valve port, and the airtightness of the seal is ensured by deformation, and pressure can also be applied at the bottom end of the valve core body to make the rubber gasket fit tightly against the valve port, thereby improving the sealing effect.

[0009] In a possible implementation, a snap ring is fixedly provided on the wall of the cylindrical snap groove, and an annular snap groove matching the snap ring is fixedly provided on the outer wall of the clamping shaft.

[0010] With the above-mentioned structural form, the clamping action between the clamping ring and the annular clamping groove can prevent the clamping shaft from slipping out of the cylindrical clamping groove.

[0011] In a possible implementation, a plug-in hole groove matching the anti-dropout bolt is provided at the bottom of the valve core body, and a matching groove communicating with the plug-in hole groove is provided on the clamping shaft, and a matching cylinder is fixedly arranged in the matching groove.

[0012] The above-mentioned structural form provides the necessary structural foundation for the anti-slip bolt to maintain a tight connection with the clamping shaft and the valve core body after insertion, and the setting of the matching cylinder can increase the force-bearing area of ​​the matching groove, avoiding the anti-slip bolt from directly contacting it due to its smaller size causing local deformation and making the connection loose.

[0013] In a possible implementation, an anti-slip sleeve is fixedly provided in the plug hole groove, the aperture of the anti-slip sleeve is consistent with the diameter of the bolt body of the anti-slip bolt, and a plurality of annular convex patterns are provided on the inner wall of the anti-slip sleeve.

[0014] With the above structure, after the anti-dropping bolt is inserted into the insertion hole, its end is in close contact with the anti-slip sleeve, and is difficult to be pulled out under the action of friction, thereby improving the anti-slip performance of the anti-dropping bolt after insertion.

[0015] In a possible implementation, a first mounting protrusion is fixedly provided on the upper end surface of the valve core body, a tightly fitting sealing ring is provided on the outer sleeve of the first mounting protrusion, and a plurality of water-blocking rings are fixedly provided on the outer wall of the sealing ring.

[0016] Through the above-mentioned structural form, the installation and fixing of the first sealing ring can be achieved, and there is no need to expand the sealing ring before installing it during the installation process. This installation method can improve the tightness of the connection between the sealing ring and the valve core body, thereby improving the sealing effect.

[0017] In a possible implementation, the receiving member includes a separating ring, the upper and lower ends of which are respectively fixed with a second mounting protrusion and a plug-in ring, wherein the plug-in ring is plugged into the first mounting protrusion, and the outer sleeve of the second mounting protrusion is provided with a tightly fitting closed ring.

[0018] Through the above-mentioned structural form, the second sealing ring can be installed and fixed, and the upper end of the first sealing ring can be sealed, and this stacked installation method is very convenient to operate.

[0019] In one possible implementation, the top cover includes a pressure ring and a trapezoidal shell, which is inserted into the second mounting protrusion ring. A centrally arranged clamping screw is fixed to the top of the valve core body, and its top end passes through the trapezoidal shell and is threadedly connected to a locking piece.

[0020] Through the above-mentioned structural form, the locking part and the clamping screw can work together to apply downward pressure to the top cover, so that its downward pressure receiving part fits tightly with the upper end of the valve core body, avoiding installation gaps and resulting in poor sealing of the entire valve core.

[0021] In a possible implementation, the locking member includes a locking nut threadably connected to the clamping screw, and a spring positioning cylinder that does not contact the clamping screw is fixedly provided on the locking nut.

[0022] The above-mentioned structural form provides the necessary structural basis for the connection between the return spring and the valve core in the solenoid valve, and the spring positioning cylinder can restrain and fix the bottom end of the return spring.

[0023] In summary, the present invention has the following beneficial technical effects:

[0024] When installing the sealing gasket, the clamping connection between the cylindrical clamping groove and the clamping shaft can be achieved by the clamping effect between the cylindrical clamping groove and the clamping shaft. Subsequently, the through-connection of the anti-dropping bolt ensures the firmness of the clamping connection between the cylindrical clamping groove and the clamping shaft. In the process of use, even if the clamping shaft is deformed and the clamping effect is reduced, the anti-dropping bolt will not fall off due to the connection effect of the anti-dropping bolt, thereby improving the reliability during use.

[0025] In addition, when closing the valve port, the rubber gasket is in direct contact with the valve port, ensuring the tightness of the seal through deformation, and the bottom end of the valve core body can also apply pressure to make the rubber gasket fit tightly against the valve port, thereby improving the overall sealing effect of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the bottom installation structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the above-mentioned installation structure of the utility model;

[0030] Figure 4 It is a partial structural sectional view of the utility model.

[0031] In the figure: 1. Valve core body; 11. Trapezoidal groove; 12. Cylindrical groove; 121. Retaining ring; 13. Plug-in hole groove; 14. Anti-slip sleeve; 15. First mounting convex ring; 16. Clamping screw; 17. Locking piece; 171. Locking nut; 172. Spring positioning cylinder; 2. Closing gasket; 21. Clamping shaft; 211. Annular groove; 212. Matching groove; 22. Rubber gasket; 23. Matching cylinder; 3. Anti-slip plug; 4. Receiver; 41. Separating ring; 42. Plug-in ring; 43. Second mounting convex ring; 5. Top cover; 51. Pressing ring; 52. Trapezoidal shell; 6. Sealing ring; 61. Water-blocking ring. DETAILED DESCRIPTION

[0032] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0033] like Figure 1 - Figure 2As shown, the present embodiment provides a high-density electromagnetic valve core, including a valve core body 1, a trapezoidal groove 11 is provided at the bottom end of the trapezoidal groove 11, a cylindrical card groove 12 is provided at the bottom of the trapezoidal groove 11, a closing gasket 2 is fixedly installed at the bottom end of the valve core body 1 to seal the valve port, a receiving member 4 is installed at the upper end of the valve core body 1, and a top cover 5 is provided on the upper cover of the valve core body 1, and a sealing ring 6 is sleeved between the valve core body 1, the receiving member 4 and the top cover 5, wherein the closing gasket 2 includes a clamping shaft 21, a rubber gasket 22 is connected to the lower end of the clamping shaft 21, the rubber gasket 22 is arranged in the trapezoidal groove 11, and the clamping shaft 21 and the valve core are fixedly installed at the bottom end of the valve core body 1 to seal the valve port, and a receiving member 4 is installed at the upper end of the valve core body 1. The main bodies 1 are fixedly connected by an anti-slip bolt 3 passing through the two. Through the above-mentioned structural form, the snap connection can be achieved by the snapping effect between the cylindrical slot 12 and the snap-in shaft 21. Then, the penetrating connection of the anti-slip bolt 3 ensures the firmness of the snap connection between the cylindrical slot 12 and the snap-in shaft 21, so that even if the closing gasket 2 is deformed during use, it cannot be detached from the valve core main body 1, thereby improving the reliability during use. In addition, when closing the valve port, the rubber gasket 22 is in direct contact with the valve port, and the airtightness of the seal is ensured by deformation, and the bottom end of the valve core main body 1 can also apply pressure to make the rubber gasket 22 fit tightly against the valve port, thereby improving the sealing effect.

[0034] Among them, a snap ring 121 is fixedly provided on the groove wall of the cylindrical groove 12, and an annular snap groove 211 matching the snap ring 121 is fixedly provided on the outer wall of the snap-in shaft 21. Through the above-mentioned structural form, the snap-in effect between the snap ring 121 and the annular snap groove 211 can make the snap-in shaft 21 not easily slip out of the cylindrical groove 12.

[0035] like Figure 2 As shown, a plug-in hole groove 13 matching the anti-dropout bolt 3 is provided at the bottom of the valve core body 1, and a matching groove 212 connected to the plug-in hole groove 13 is provided on the clamping shaft 21, and a matching cylinder 23 is fixedly arranged in the matching groove 212. Through the above-mentioned structural form, the necessary structural basis is provided for the anti-dropout bolt 3 to maintain a tight connection with the clamping shaft 21 and the valve core body 1 after insertion, and the setting of the matching cylinder 23 can increase the force-bearing area of ​​the matching groove 212, thereby avoiding the anti-dropout bolt 3 from being directly in contact with it, resulting in its local deformation due to its smaller size, making the connection loose.

[0036] Among them, an anti-slip sleeve 14 is fixedly arranged in the plug-in hole groove 13, the aperture of the anti-slip sleeve 14 is consistent with the diameter of the bolt body of the anti-slip plug 3, and a number of annular convex grooves are provided on the inner wall of the anti-slip sleeve 14. Through the above-mentioned structural form, after the anti-slip plug 3 is inserted into the plug-in hole groove 13, its end is in close contact with the anti-slip sleeve 14, and it is difficult to be pulled out under the action of friction, thereby improving the anti-slip performance of the anti-slip plug 3 after insertion.

[0037] like Figure 3-Figure 4As shown, a first mounting protrusion 15 is fixedly provided on the upper end surface of the valve core body 1, and a tightly fitting sealing ring 6 is provided on the outer sleeve of the first mounting protrusion 15, and a plurality of water-blocking rings 61 are fixedly provided on the outer wall of the sealing ring 6. Through the above-mentioned structural form, the installation and fixing function of the first sealing ring 6 can be achieved, and there is no need to expand the sealing ring 6 before installing it during the installation process. This installation method can improve the tightness of the connection between the sealing ring 6 and the valve core body 1, thereby improving the sealing effect.

[0038] Among them, the receiving part 4 includes a separating ring 41, and a second mounting protrusion ring 43 and a plug-in ring 42 are fixedly provided at its upper and lower ends respectively, wherein the plug-in ring 42 is plugged into the first mounting protrusion ring 15, and the second mounting protrusion ring 43 is provided with a tightly fitting closed ring 6 on the outer sleeve. Through the above-mentioned structural form, the installation and fixing function of the second closed ring 6 can be realized, and it can close the upper end of the first closed ring 6, and this stacked installation method is very easy to operate.

[0039] In addition, the top cover 5 includes a pressure ring 51 and a trapezoidal cylindrical shell 52. The trapezoidal cylindrical shell 52 is inserted into the second mounting protrusion ring 43. A centrally arranged clamping screw 16 is fixedly provided on the top of the valve core body 1. The top end thereof passes through the trapezoidal cylindrical shell 52 and is threadedly connected with a locking member 17. Through the above-mentioned structural form, the locking member 17 and the clamping screw 16 can cooperate to apply downward pressure to the top cover 5, so that its downward pressure receiving member 4 is tightly fitted with the upper end of the valve core body 1, avoiding the presence of gaps in the installation and resulting in poor sealing of the entire valve core.

[0040] like Figure 4 As shown, the locking member 17 includes a locking nut 171 threadedly connected to the clamping screw 16, and a spring positioning cylinder 172 that does not contact the clamping screw 16 is fixedly provided on the locking nut 171. Through the above-mentioned structural form, the necessary structural basis is provided for the connection between the reset spring in the solenoid valve and the valve core as a whole, and the spring positioning cylinder 172 can play a role in restraining and fixing the bottom end of the reset spring.

[0041] The use principle and use process of this utility model:

[0042] When installing the closing gasket 2, a snap connection can be achieved by the snapping effect between the cylindrical slot 12 and the snapping shaft 21, and then the through connection of the anti-slip bolt 3 can be used to ensure the firmness of the snapping between the cylindrical slot 12 and the snapping shaft 21, so that during use, even if the snapping shaft 21 is deformed and the snapping effect is reduced, it will not fall off due to the connecting effect of the anti-slip bolt 3, thereby improving the reliability during use; wherein, a snap ring 121 is fixedly provided on the groove wall of the cylindrical slot 12, and an annular snap groove 211 matching the snap ring 121 is fixedly provided on the outer wall of the snap shaft 21. This structural form can use the snapping effect between the snap ring 121 and the annular snap groove 211 to make the snap shaft 21 not easy to slip out of the cylindrical slot 12.

[0043] When closing the valve port, the rubber pad 22 is in direct contact with the valve port, ensuring the tightness of the seal through deformation, and the bottom end of the valve core body 1 can also apply pressure to make the rubber pad 22 fit tightly against the valve port, thereby improving the overall sealing effect of the valve core.

[0044] In addition, the sealing ring 6 on the upper part of the valve core that plays a sealing role can be directly mounted on the first mounting convex ring 15 and the second mounting convex ring 43 during installation. There is no need to expand the sealing ring 6 before installing it during the installation process. This installation method can improve the tightness of the connection between the sealing ring 6 and the valve core body 1, thereby improving the sealing effect.

[0045] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A high-density electromagnetic valve core, characterized in that: include: The valve core body (1) has a trapezoidal groove (11) at its bottom end, and a communicating cylindrical clamping groove (12) is formed at the bottom of the trapezoidal groove (11); A sealing gasket (2) is fixedly mounted on the bottom end of the valve core body (1) to seal the valve port; A receiving member (4) is mounted on the upper end of the valve core body (1), and the upper cover is provided with a top cover (5); A sealing ring (6) is sleeved between the valve core body (1), the receiving member (4) and the top cover (5); The closing gasket (2) comprises a clamping shaft (21), the lower end of which is connected to a rubber pad (22), the clamping shaft (21) is inserted into the cylindrical clamping groove (12), the rubber pad (22) is arranged in the terraced groove (11), and the clamping shaft (21) and the valve core body (1) are fixedly connected by an anti-dropping bolt (3) that passes through the two.

2. A high-density electromagnetic valve core according to claim 1, characterized in that: A snap ring (121) is fixedly provided on the groove wall of the cylindrical snap groove (12), and an annular snap groove (211) matching the snap ring (121) is fixedly provided on the outer wall of the snap shaft (21).

3. The high-density electromagnetic valve core according to claim 1, characterized in that: The bottom of the valve core body (1) is provided with a plug-in hole groove (13) matching the anti-dropping bolt (3), and the clamping shaft (21) is provided with a matching groove (212) communicating with the plug-in hole groove (13), and a matching cylinder (23) is fixedly arranged in the matching groove (212).

4. The high-density electromagnetic valve core according to claim 3, characterized in that: An anti-slip sleeve (14) is fixedly arranged in the plug hole groove (13), the aperture of the anti-slip sleeve (14) is consistent with the diameter of the bolt body of the anti-slip bolt (3), and a plurality of annular convex patterns are provided on the inner wall of the anti-slip sleeve (14).

5. The high-density electromagnetic valve core according to claim 1, characterized in that: A first mounting protruding ring (15) is fixedly provided on the upper end surface of the valve core body (1), a tightly fitting sealing ring (6) is provided on the outer shell of the first mounting protruding ring (15), and a plurality of water blocking rings (61) are fixedly provided on the outer wall of the sealing ring (6).

6. The high-density electromagnetic valve core according to claim 5, characterized in that: The receiving member (4) comprises a separating ring (41), the upper and lower ends of which are respectively fixedly provided with a second mounting protruding ring (43) and a plug-in ring (42), wherein the plug-in ring (42) is plugged into the first mounting protruding ring (15), and the outer shell of the second mounting protruding ring (43) is provided with a tightly fitting sealing ring (6).

7. The high-density electromagnetic valve core according to claim 6, characterized in that: The top cover (5) comprises a pressure ring (51) and a trapezoidal shell (52), the trapezoidal shell (52) being inserted into the second mounting protruding ring (43), and a centrally arranged clamping screw (16) being fixedly provided at the top end of the valve core body (1), the top end of which passes through the trapezoidal shell (52) and is threadedly connected to a locking member (17).

8. The high-density electromagnetic valve core according to claim 7, characterized in that: The locking member (17) comprises a locking nut (171) threadedly connected to the clamping screw (16), and a spring positioning cylinder (172) which does not contact the clamping screw (16) is fixedly arranged on the locking nut (171).

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