Movable iron core of pilot head of direct-acting two-way valve

Abstract

The utility model discloses a direct-acting two-way valve pilot head movable iron core, which relates to the technical field of pilot head movable iron cores and comprises a copper sleeve, a first sleeve block is sleeved on the surface of the copper sleeve, a first annular groove is arranged on the surface of the first sleeve block, a first annular ring is arranged in an inner cavity of the first annular groove, and a second annular ring is arranged in an inner cavity of the first annular ring. The surface of the copper sleeve is sleeved with a second sleeve block. When the electromagnetic valve coil is powered on, the movable iron core can be rapidly attracted by electromagnetic force, overcome the reset force of the spring and be attracted with the static iron core, so that the valve port is rapidly opened, medium circulation is achieved, and when power is off, the movable iron core rapidly returns to the initial position, closes the valve port and cuts off medium flowing under the action of the reset force of the spring. Rapid response and efficient control ensure that the valve can act rapidly and accurately when needed, through the design of the first annular ring and the second annular ring, the sealing performance of the movable iron core in the moving process is ensured, and medium leakage is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pilot head moving iron core, concretely to a direct action type two-way valve pilot head moving iron core. BACKGROUND

[0002] The electric two-way valve is a matching product specially for central air conditioning fan coil, which is composed of a driver and a valve body, the driver is driven by a synchronous motor, and has spring reset and manual valve opening lever operating functions, the working principle of the electric two-way valve is that the driver is driven by a reversible synchronous motor, and has a magnetic clutch, the magnetic action generated by the motor rotor and the clutch is used to generate stable torque in the case of stop, so when no current passes through the motor, it can be stably stopped at any point, when the valve is fully opened or closed, the magnetic clutch is separated, and the adjustment is stopped, the signals sent by the incremental or proportional controller of the driver can make the motor rotate clockwise or counterclockwise.

[0003] The sensitivity of the existing direct action type electromagnetic valve is relatively low, and a certain current is needed to make the electromagnet work, so the response of the moving iron core will be affected, in the high temperature or low temperature environment, the sensitivity of the moving iron core may be further reduced, at the same time, as one of the key components, the moving iron core is also easy to be invaded by external pollutants, which may cause the internal blockage or jam of the moving iron core, affecting its normal movement, and further affecting the opening and closing action of the valve, the working frequency of the moving iron core of the electromagnetic pilot head is high, which may cause the sealing gasket matched with it to be easy to fall off, and the falling off of the sealing gasket will directly cause the electromagnetic pilot head to be unable to use, thereby affecting the normal work of the whole valve. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a direct action type two-way valve pilot head moving iron core, when the electromagnetic valve coil is electrified, the moving iron core can be quickly attracted by electromagnetic force and overcome the reset force of the spring, and is attracted to the static iron core, so as to quickly open the valve port and realize the circulation of medium, when the power is off, the moving iron core quickly returns to the initial position under the reset force of the spring, closes the valve port and cuts off the medium flow, the quick response and high efficiency control ensure that the valve can quickly and accurately act when needed, through the design of the first annular ring and the second annular ring, the sealing property of the moving iron core in the moving process is guaranteed, the medium leakage is effectively prevented, the cooperation of the annular groove and the annular ring not only guarantees the sealing property, but also reduces the friction between the moving iron core and the copper sleeve, thereby reducing the wear of the moving iron core in the moving process, and further improving the durability and service life of the two-way valve pilot head moving iron core, through the first sleeve block and the second sleeve block sleeved outside the copper sleeve, the fixation and sealing of the related components are realized, the whole structure is compact and easy to maintain, the overall performance of the valve is improved, and the daily operation and maintenance of the user are also facilitated, thereby solving the problems in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a direct action type two -way valve pilot head moving iron core, including copper sleeve, so the surface of copper sleeve is equipped with first sleeve piece, the surface of first sleeve piece is equipped with first annular groove, the inner chamber of first annular groove is provided with first annular ring, the surface of copper sleeve is equipped with second sleeve piece, second sleeve piece is located the top of first sleeve piece, the inner chamber of copper sleeve is provided with moving iron core, the top of moving iron core is provided with static iron core, static iron core's top fixedly connected with screw block, the top of static iron core is equipped with first recess, the surface of static iron core is equipped with second annular groove, the inner chamber of second annular groove is provided with second annular ring, the bottom of static iron core is equipped with second recess, the top of moving iron core is equipped with third recess, the bottom of third recess is equipped with through slot, the inner chamber of static iron core is provided with spring, one end of spring extends to the inner chamber of second recess.

[0006] Further, the surface of the static iron core is provided with a third annular groove, and the third annular groove is located above the second annular groove.

[0007] Further, the surface of the copper sleeve is provided with two sliding grooves, the inner cavity of the sliding groove is slidably connected with a sliding block, and one side of the sliding block is fixedly connected with the second sleeve block.

[0008] Further, the top of the moving iron core is fixedly connected with a rubber pad, and one side of the rubber pad is in contact with the static iron core.

[0009] Further, the bottom of the second sleeve block is fixedly connected with a short rod, and the number of the short rods is several.

[0010] Further, the moving iron core, the static iron core and the spring form an extension structure, and the maximum moving distance of the moving iron core and the static iron core is equal to the deformation amount of the spring.

[0011] Compared with the prior art, the utility model has the beneficial effects as follows:

[0012] The utility model provides a kind of direct-acting two-way valve pilot head moving iron core, when solenoid coil is energized, moving iron core can be quickly attracted by electromagnetic force and overcome the reset force of spring, and static core is attracted, to quickly open valve port, realize the flow of medium, when power off, moving iron core returns initial position under the reset force of spring, closes valve port, cuts off medium flow, fast response and high-efficiency control ensure that valve can quickly, accurately act when required, the design of first annular ring and second annular ring guarantees the sealing property of moving iron core in moving process, effectively prevent medium leakage, the cooperation of annular groove and annular ring not only guarantees sealing property, but also reduces the friction between moving iron core and copper sleeve pipe, to reduce the wear of moving iron core in moving process, and then improve the durability and service life of two-way valve pilot head moving iron core, by the first sleeve block and second sleeve block of being set in the outside of copper sleeve pipe, the fixation and sealing of relevant components are realized, so that the whole structure is compact and easy to maintain, improve the overall performance of valve, also facilitate user's daily operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is local structure schematic diagram of the utility model;

[0015] Figure 3 It is main view sectional view of the utility model;

[0016] Figure 4 It is three-dimensional structure schematic diagram of static core and threaded block of the utility model;

[0017] Figure 5 It is three-dimensional structure schematic diagram of second sleeve block of the utility model.

[0018] In the drawing: 1, copper sleeve pipe;2, first sleeve block;3, first annular groove;4, first annular ring;5, second sleeve block;6, moving iron core;7, static core;8, threaded block;9, first recess;10, second annular groove;11, second annular ring;12, second recess;13, third recess;14, through groove;15, spring;16, third annular groove;17, sliding slot;18, sliding block;19, rubber pad;20, short rod. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0020] To solve technical problems, such as Figures 1-5 As shown, the following preferred technical solutions are provided: a direct-acting two-way valve pilot head moving iron core, including a copper sleeve 1, so that the surface of the copper sleeve 1 is sleeved with a first set block 2, the surface of the first set block 2 is provided with a first annular groove 3, the inner cavity of the first annular groove 3 is provided with a first annular ring 4, the surface of the copper sleeve 1 is sleeved with a second set block 5, the second set block 5 is located at the top of the first set block 2, the inner cavity of the copper sleeve 1 is provided with a moving iron core 6, the top of the moving iron core 6 is provided with a static iron core 7, the top of the static iron core 7 is fixedly connected with a threaded block 8, the top of the static iron core 7 is provided with a first groove 9, the surface of the static iron core 7 is provided with a second annular groove 10, the inner cavity of the second annular groove 10 is provided with a second annular ring 11, the bottom of the static iron core 7 is provided with a second groove 12, the top of the moving iron core 6 is provided with a third groove 13, the bottom of the third groove 13 is provided with a through groove 14, the inner cavity of the static iron core 7 is provided with a spring 15, and one end of the spring 15 extends to the inner cavity of the second groove 12.

[0021] Further, such as Figure 3 and Figure 4 As shown, the following preferred technical solutions are provided:

[0022] A third annular groove 16 is provided on the surface of the static iron core 7. The third annular groove 16 is located above the second annular groove 10. The provision of the third annular groove 16 saves manufacturing costs, thereby reducing the economic burden on users.

[0023] Further, such as Figures 1-5 As shown, the following preferred technical solutions are provided:

[0024] Two chute 17 are provided on the surface of the copper sleeve 1, and the inner cavity of the chute 17 is slidably connected to a slider 18, and one side of the slider 18 is fixedly connected to the second set of blocks 5. Through the coordinated use of the chute 17 and the slider 18, the second set of blocks 5 are limited, making it difficult for the second set of blocks 5 to separate from the surface of the copper sleeve 1.

[0025] Further, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0026] A rubber pad 19 is fixedly connected to the top of the moving iron core 6, and one side of the rubber pad 19 is in contact with the static iron core 7. The setting of the rubber pad 19 seals the moving iron core 6 and the static iron core 7, thereby improving the sealing between the moving iron core 6 and the static iron core 7.

[0027] Further, such as Figure 1 and Figure 3 As shown, the following preferred technical solutions are provided:

[0028] The bottom of the second set of blocks 5 is fixedly connected with a short rod 20, and the number of the short rods 20 is several. The setting of the short rods 20 plays a role in positioning the second set of blocks 5, so that the position of the copper sleeve 1 is not easily shifted when it is fixed.

[0029] Further, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0030] A telescopic structure is formed between the moving iron core 6, the static iron core 7 and the spring 15, and the maximum moving distance of the moving iron core 6 and the static iron core 7 is equal to the deformation of the spring 15. Through the setting of the spring 15, the static iron core 7 is moved, making it convenient for the user to pick up the static iron core 7.

[0031] Working principle: The moving iron core 6 is located in the inner cavity of the copper sleeve 1 and is pushed by the spring 15 to maintain a position separated from the static iron core 7. One end of the spring 15 is located in the third groove 13 of the moving iron core 6, and the other end extends to the second groove 12 of the static iron core 7 to provide a reset force for the moving iron core 6. The first set of blocks 2 and the second set of blocks 5 are respectively sleeved on the outside of the copper sleeve 1 to fix and seal related components. The first annular groove 3 and the second annular groove 10 are respectively provided with a first annular ring 4 and a second annular ring 11 to ensure sealing and reduce friction. When the solenoid valve coil is energized, the electromagnetic force generated attracts the moving iron core 6 to move toward the static iron core 7, and the moving iron core 6 is in Under the action of electromagnetic force, the restoring force of the spring 15 is overcome and the moving iron core 7 is attracted. At this time, due to the attraction of the moving iron core 6 and the static iron core 7, the valve port of the two-way valve is opened and the medium can flow. When the solenoid valve coil is powered off, the electromagnetic force disappears, and the moving iron core 6 quickly returns to its initial position under the restoring force of the spring 15, separates from the static iron core 7, closes the valve port, and cuts off the flow of the medium. The presence of the first annular ring 4 and the second annular ring 11 ensures the sealing of the moving iron core 6 during movement to prevent medium leakage. The design of the annular groove and the annular ring also reduces the friction between the moving iron core 6 and the copper sleeve 1, thereby improving the durability and service life of the moving iron core of the two-way valve pilot head.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A direct-acting two-way valve pilot head moving iron core, comprising a copper sleeve (1), characterized in that: Therefore, the surface of the copper sleeve (1) is provided with a first set of blocks (2), the surface of the first set of blocks (2) is provided with a first annular groove (3), the inner cavity of the first annular groove (3) is provided with a first annular ring (4), the surface of the copper sleeve (1) is provided with a second set of blocks (5), the second set of blocks (5) is located on the top of the first set of blocks (2), the inner cavity of the copper sleeve (1) is provided with a moving iron core (6), the top of the moving iron core (6) is provided with a static iron core (7), the top of the static iron core (7) is fixedly connected with a threaded block (8), the static iron core (7) is provided with a threaded block (8), and the static iron core (7) is provided with a threaded block (8). A first groove (9) is provided on the top of the core (7), a second annular groove (10) is provided on the surface of the static iron core (7), a second annular ring (11) is provided in the inner cavity of the second annular groove (10), a second groove (12) is provided on the bottom of the static iron core (7), a third groove (13) is provided on the top of the moving iron core (6), a through groove (14) is provided at the bottom of the third groove (13), a spring (15) is provided in the inner cavity of the static iron core (7), and one end of the spring (15) extends to the inner cavity of the second groove (12).

2. The direct-acting two-way valve pilot head movable iron core according to claim 1, characterized in that: A third annular groove (16) is provided on the surface of the static iron core (7), and the third annular groove (16) is located above the second annular groove (10).

3. The direct-acting two-way valve pilot head movable iron core according to claim 1, characterized in that: Two sliding grooves (17) are provided on the surface of the copper sleeve (1), and a slider (18) is slidably connected to the inner cavity of the sliding groove (17), and one side of the slider (18) is fixedly connected to the second set block (5).

4. The direct-acting two-way valve pilot head movable iron core according to claim 1, characterized in that: A rubber pad (19) is fixedly connected to the top of the moving iron core (6), and one side of the rubber pad (19) is in contact with the static iron core (7).

5. The direct-acting two-way valve pilot head movable iron core according to claim 1, characterized in that: The bottom of the second set of blocks (5) is fixedly connected with a short rod (20), and the number of the short rods (20) is several.

6. The direct-acting two-way valve pilot head movable iron core according to claim 1, characterized in that: A telescopic structure is formed between the movable iron core (6), the static iron core (7) and the spring (15), and the maximum moving distance of the movable iron core (6) and the static iron core (7) is equal to the deformation amount of the spring (15).

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