Electric actuator

Abstract

The utility model relates to an electric actuator, and belongs to the technical field of electric actuators, the electric actuator comprises an electromagnetic valve and a two-way valve which are connected, a quick fixing assembly is arranged between the electromagnetic valve and the two-way valve, and the electromagnetic valve and the two-way valve are connected through the quick fixing assembly. A connecting column is arranged at the end, close to the two-way valve, of the electromagnetic valve, the quick fixing assembly is movably connected with the connecting column and comprises a snowflake rotating ring block, a first threaded column is arranged in the snowflake rotating ring block and movably connected with the connecting column, and a second threaded column is arranged in the snowflake rotating ring block and movably connected with the connecting column. A second threaded column is arranged at the end, close to the electromagnetic valve, of the two-way valve and used for being in threaded connection with the first threaded column. The electric actuator has the effect that the time for an operator to disassemble the electric actuator can be shortened.

Description

Technical Field

[0001] The present application relates to the technical field of electric actuators, and in particular to an electric actuator. Background Art

[0002] With the gradual improvement of people's living standards, many residential areas have generally adopted hot water supply systems, and heating systems have been widely adopted in the north. The control actuators of existing heating systems usually use electric actuators. Electric actuators are an indispensable and important component of automatic control systems. Their function is to receive control signals sent by the controller and change the size of the controlled medium, thereby maintaining the controlled variable at the required value or within a certain range.

[0003] At present, electric actuators are usually installed on the wall along with water distributors. The electric actuators generally include a solenoid valve and a two-way valve connected to each other. A first annular interface is provided at one end of the solenoid valve close to the two-way valve, and a second annular interface is provided at one end of the two-way valve close to the solenoid valve. The first annular interface abuts against the second annular interface, and a number of equidistantly distributed bolts for connecting the first annular interface with the second annular interface are inserted into the first annular interface.

[0004] With respect to the above-mentioned related technologies, the following defects are found: when the solenoid valve and the two-way valve are used for a long time, and the two-way valve becomes clogged or the solenoid valve is damaged or other problems occur and need to be repaired and replaced, it is necessary to loosen several bolts on the first annular interface and the second annular interface one by one before the solenoid valve and the two-way valve can be removed, which may prolong the time the operator spends on disassembling the electric actuator. Utility Model Content

[0005] In order to shorten the time for an operator to disassemble an electric actuator, the present application provides an electric actuator.

[0006] The present application provides an electric actuator, which adopts the following technical solution:

[0007] An electric actuator comprises a solenoid valve and a two-way valve connected to each other, a quick fixing assembly being provided between the solenoid valve and the two-way valve, the solenoid valve and the two-way valve being connected via the quick fixing assembly, a connecting column being provided at one end of the solenoid valve close to the two-way valve, the quick fixing assembly being movably connected to the connecting column, the quick fixing assembly comprising a snowflake rotating ring block, a first threaded column being provided in the snowflake rotating ring block, the first threaded column being movably connected to the connecting column, a second threaded column being provided at one end of the two-way valve close to the solenoid valve, the second threaded column being used for being threadedly connected to the first threaded column.

[0008] By adopting the above technical scheme, a connecting column is provided at one end of the solenoid valve close to the two-way valve, the snowflake rotating ring block is movably provided on the connecting column, and a first threaded column is provided in the snowflake rotating ring block, the first threaded column is used for movably connecting with the connecting column, and a second threaded column is provided at one end of the two-way valve close to the solenoid valve, the second threaded column is used for threaded connection with the first threaded column, so that when the damaged solenoid valve or two-way valve needs to be repaired or replaced after long-term use, it is only necessary to rotate the snowflake rotating ring block to gradually disconnect the threaded connection between the first threaded column and the second threaded column, so that the solenoid valve and the two-way valve can be disassembled for inspection and replacement.

[0009] Optionally, a first limiting ring block is provided on the outer side wall of the end of the connecting column away from the solenoid valve, and a second limiting ring block cooperating with the first limiting ring block is provided on the inner side wall of the end of the first threaded column close to the solenoid valve.

[0010] By adopting the above technical solution, a first limiting ring block is arranged on the outer wall of the end of the connecting column away from the solenoid valve, and a second limiting ring block is arranged on the inner wall of the end of the first threaded column close to the solenoid valve to cooperate with the first limiting ring block, so that the first threaded column can be limited on the connecting column.

[0011] Optionally, a plurality of anti-sliding blocks are provided on the outer side wall of the snowflake rotating ring block.

[0012] By adopting the above technical scheme, a number of anti-sliding blocks are arranged on the outer wall of the snowflake rotating ring block, which is beneficial to increase the friction between the operator and the snowflake rotating ring block when the operator rotates the snowflake rotating ring block, so that the operator is not likely to fall off the snowflake rotating ring block when rotating the snowflake rotating ring block.

[0013] Optionally, a ball valve is provided in the two-way valve, and a valve stem is provided at one end of the ball valve facing the second threaded column, and the valve stem passes through the second threaded column and is connected to the solenoid valve.

[0014] By adopting the above technical solution, a ball valve is arranged in the two-way valve, and a valve stem is arranged at one end of the ball valve facing the second threaded column. The valve stem is passed through the second threaded column and connected to the solenoid valve, so that the ball valve can be controlled to open and close by the solenoid valve through the valve stem.

[0015] Optionally, a sealing ring is provided on the outer side wall of the valve stem, and the sealing ring is made of EPDM.

[0016] By adopting the above technical solution, a sealing ring is arranged on the outer side wall of the valve stem. The sealing ring is made of EPDM material, which is beneficial to improving the sealing performance of the connection between the valve stem and the solenoid valve. The use of EPDM material can also improve the corrosion resistance and high temperature resistance of the sealing ring.

[0017] Optionally, the opening diameter of the ball valve is 1-2 mm smaller than the valve port diameter of the two-way valve.

[0018] By adopting the above technical solution, the opening diameter of the ball valve is made smaller than the valve port diameter of the two-way valve by 1-2 mm, so that slag blockage is less likely to occur in the two-way valve and the ball valve.

[0019] Optionally, the ball valve is made of stainless steel.

[0020] By adopting the above technical solution, the ball valve is made of stainless steel, so that the ball valve is not easy to rust, and thus the torque of the ball valve is not easy to increase.

[0021] Optionally, the solenoid valve includes a shell and an end cover connected to each other, the connecting column is arranged at the end of the end cover away from the end connected to the shell, a gear is arranged in the shell, a docking rod is arranged at the end of the gear close to the end cover, and the docking rod passes through the connecting column and is connected to the valve stem.

[0022] By adopting the above technical solution, a connecting column is arranged at the end of the end cover away from the end connected to the shell, a gear is arranged in the shell, and a docking rod is arranged at the end of the gear close to the end cover. The docking rod passes through the connecting column and is connected to the valve stem, which is conducive to the solenoid valve controlling the switch of the ball valve.

[0023] Optionally, the gear is made of alloy material.

[0024] By adopting the above technical solution, the gear is made of alloy material, which is beneficial to prolonging the service life of the gear.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. A connecting column is arranged at one end of the solenoid valve close to the two-way valve, and a snowflake rotating ring block is movably arranged on the connecting column, and a first threaded column is arranged inside the snowflake rotating ring block, and the first threaded column is used to be movably connected with the connecting column, and a second threaded column is arranged at one end of the two-way valve close to the solenoid valve, and the second threaded column is used to be threadedly connected with the first threaded column, so that when the damaged solenoid valve or two-way valve needs to be repaired and replaced after long-term use, it is only necessary to rotate the snowflake rotating ring block to gradually disconnect the threaded connection between the first threaded column and the second threaded column, so that the solenoid valve and the two-way valve can be disassembled for repair and replacement;

[0027] 2. A first limiting ring block is arranged on the outer side wall of the end of the connecting column away from the solenoid valve, and a second limiting ring block is arranged on the inner side wall of the end of the first threaded column close to the solenoid valve to cooperate with the first limiting ring block so that the first threaded column can be limited on the connecting column;

[0028] 3. Several anti-sliding blocks are arranged on the outer side wall of the snowflake rotating ring block, which is beneficial to increase the friction between the operator and the snowflake rotating ring block when the operator rotates the snowflake rotating ring block, so that the operator is not easy to fall off the snowflake rotating ring block when rotating the snowflake rotating ring block. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the exploded structure of the overall structure in the embodiment of the present application.

[0030] Figure 2 yes Figure 1 Schematic diagram of the structure of part A in the middle.

[0031] Figure 3 It is a partial structural schematic diagram of the connecting column and the first threaded column in an embodiment of the present application.

[0032] Explanation of the reference numerals in the accompanying drawings: 1. solenoid valve; 11. housing; 12. end cover; 121. connecting column; 1211. first limiting ring block; 13. gear; 131. docking rod; 2. quick fixing assembly; 21. snowflake rotating ring block; 211. anti-sliding block; 22. first threaded column; 221. first threaded portion; 222. second limiting ring block; 3. two-way valve; 31. second threaded column; 311. second threaded portion; 32. ball valve; 33. valve stem; 331. sealing ring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] The present application embodiment discloses an electric actuator. Figure 1 An electric actuator includes a solenoid valve 1, a quick fixing component 2 and a two-way valve 3. The quick fixing component 2 is arranged on the solenoid valve 1, and the solenoid valve 1 is connected to the two-way valve 3 through the quick fixing component 2.

[0035] Reference Figure 1 The solenoid valve 1 includes a shell 11, an end cover 12 and a gear 13. The protection level of the shell 11 reaches IP65, and it has good waterproof and dustproof functions. The end cover 12 is ultrasonically welded to the shell 11. The gear 13 is arranged in the shell 11. A docking rod 131 is integrally formed at one end of the gear 13 close to the end cover 12, and a connecting column 121 is integrally formed at one end of the end cover 12 away from the shell 11 ultrasonically welded. The outer wall of the connecting column 121 is a smooth surface. The connecting column 121 protrudes from the end cover 12, and the docking rod 131 passes through the connecting column 121. The gear 13 is made of alloy material as a whole, which is beneficial to prolonging the service life of the gear 13.

[0036] Reference Figure 1 , Figure 2 and Figure 3The quick fixing component 2 is movably arranged on the connecting column 121. The quick fixing component 2 includes a snowflake rotating ring block 21 and a first threaded column 22. The first threaded column 22 is fixedly arranged in the snowflake rotating ring block 21. The first threaded column 22 is sleeved on the connecting column 121. A first threaded portion 221 is integrally formed at the inner side wall of the first threaded column 22. In order to prevent the first threaded column 22 from falling off from the connecting column 121, a first limiting ring block 1211 is ultrasonically welded at the outer side wall of the connecting column 121 away from the end integrally formed with the end cover 12, and a second limiting ring block 222 is welded at the inner side wall of the end of the first threaded column 22 close to the end cover 12. The first limiting ring block 1211 cooperates with the second limiting ring block 222, so that the first threaded column 22 is limited on the connecting column 121. In order to prevent the operator from slipping when rotating the snowflake rotating ring block 21, a plurality of anti-sliding blocks 211 are arranged at the outer side wall of the snowflake rotating ring block 21.

[0037] Reference Figure 1 and Figure 2 A second threaded column 31 is integrally formed on the outer wall of the two-way valve 3, and the second threaded column 31 is arranged toward the snowflake rotating ring block 21. A second threaded portion 311 is integrally formed on the outer wall of one end of the second threaded column 31 facing the snowflake rotating ring block 21. The second threaded portion 311 is used to be threadedly connected with the first threaded portion 221, so that the two-way valve 3 is connected and fixed to the solenoid valve 1.

[0038] Reference Figure 1 A ball valve 32 is fixedly arranged in the two-way valve 3. The ball valve 32 is made of stainless steel, so that the torque of the ball valve 32 is not easy to increase after long-term use. The opening diameter in the ball valve 32 is 1-2mm smaller than the valve port diameter of the two-way valve 3, which is conducive to straight water flow and no slag blockage.

[0039] Reference Figure 1 A valve stem 33 is inserted into the second threaded column 31, and the valve stem 33 is away from the snowflake rotating ring block 21 and connected to the ball valve 32. The end of the valve stem 33 away from the ball valve 32 passes through the connecting column 121 and is connected to the docking rod 131, so that the solenoid valve 1 controls the switch of the ball valve 32 through the docking of the docking rod 131 and the valve stem 33. A sealing ring 331 is sleeved on the outer side wall of the valve stem 33, which is beneficial to improving the sealing performance of the connection between the valve stem 33 and the docking rod 131, so that water is not easy to flow into the solenoid valve 1 from the valve stem 33, and the sealing ring 331 is made of EPDM, which is beneficial to improving the corrosion resistance and high temperature resistance of the sealing ring 331.

[0040] The implementation principle of an electric actuator in an embodiment of the present application is: align the second threaded column 31 with the first threaded column 22, rotate the snowflake rotating ring block 21 in one direction to threadably connect the first threaded portion 221 with the second threaded portion 311, so that the solenoid valve 1 is connected to the two-way valve 3, and the torque of the solenoid valve 1 is greater than the torque of the two-way valve 3, so that the solenoid valve 1 can control the switch of the two-way valve 3. After long-term use, when the solenoid valve 1 or the two-way valve 3 is damaged and needs to be repaired and replaced, it is only necessary to rotate the snowflake rotating ring block 21 in the other direction to gradually disconnect the threaded connection between the first threaded portion 221 and the second threaded portion 311. After the threaded connection between the first threaded portion 221 and the second threaded portion 311 is disconnected, the solenoid valve 1 or the two-way valve 3 can be repaired and replaced.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric actuator, characterized in that: The invention comprises a solenoid valve (1) and a two-way valve (3) connected to each other, wherein a quick fixing assembly (2) is provided between the solenoid valve (1) and the two-way valve (3), the solenoid valve (1) and the two-way valve (3) are connected via the quick fixing assembly (2), the solenoid valve (1) is provided with a connecting column (121) at one end close to the two-way valve (3), the quick fixing assembly (2) is movably connected to the connecting column (121), the quick fixing assembly (2) comprises a snowflake rotating ring block (21), a first threaded column (22) is provided inside the snowflake rotating ring block (21), the first threaded column (22) is movably connected to the connecting column (121), and the two-way valve (3) is provided with a second threaded column (31) at one end close to the solenoid valve (1), the second threaded column (31) is used for being threadedly connected to the first threaded column (22).

2. An electric actuator according to claim 1, characterized in that: A first limiting ring block (1211) is provided on the outer side wall of the end of the connecting column (121) away from the solenoid valve (1), and a second limiting ring block (222) is provided on the inner side wall of the end of the first threaded column (22) close to the solenoid valve (1) for limiting the position in cooperation with the first limiting ring block (1211).

3. An electric actuator according to claim 2, characterized in that: A plurality of anti-sliding blocks (211) are arranged on the outer side wall of the snowflake rotating ring block (21).

4. The electric actuator according to claim 1, characterized in that: A ball valve (32) is provided inside the two-way valve (3), and a valve stem (33) is provided at one end of the ball valve (32) facing the second threaded column (31), and the valve stem (33) passes through the second threaded column (31) and is connected to the solenoid valve (1).

5. An electric actuator according to claim 4, characterized in that: A sealing ring (331) is provided on the outer side wall of the valve stem (33), and the sealing ring (331) is made of EPDM.

6. An electric actuator according to claim 5, characterized in that: The opening diameter of the ball valve (32) is 1-2 mm smaller than the valve port diameter of the two-way valve (3).

7. An electric actuator according to claim 6, characterized in that: The ball valve (32) is made of stainless steel.

8. An electric actuator according to claim 4, characterized in that: The solenoid valve (1) comprises a housing (11) and an end cover (12) connected to each other; the connecting column (121) is arranged at an end of the end cover (12) away from the end connected to the housing (11); a gear (13) is arranged in the housing (11); a docking rod (131) is arranged at an end of the gear (13) close to the end cover (12); the docking rod (131) passes through the connecting column (121) and is connected to the valve stem (33).

9. An electric actuator according to claim 8, characterized in that: The gear (13) is made of alloy material.

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