A multi-stage regulating solenoid valve

Abstract

This utility model discloses a multi-stage regulating solenoid valve, including a solenoid valve body and a solenoid valve cover. A threaded tube is fixedly connected to the upper surface of the solenoid valve body, and a threaded sleeve is fixedly connected to the lower surface of the solenoid valve cover. A threaded tube is threaded onto the outer surface of the threaded sleeve. Limiting structures are provided at the front and rear ends of the solenoid valve cover and the solenoid valve body. These limiting structures include a fixing plate and a rectangular through hole. When disassembling the solenoid valve body, the multi-stage regulating solenoid valve of this utility model allows for the removal of the solenoid valve cover by pulling the fixing block outwards to disengage the circular locking rod from the circular locking groove, then pulling the fixing plate upwards to disengage the rectangular insert fixedly mounted on the lower surface of the fixing plate from the rectangular slot and the rectangular through hole, and finally rotating the solenoid valve cover to cause the threaded sleeve to spirally rotate on the outer surface of the threaded tube until it disengages.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage regulating solenoid valve technology, and in particular to a multi-stage regulating solenoid valve. Background Technology

[0002] A multi-stage regulating solenoid valve is an automated device that uses electromagnetic control to achieve precise multi-stage flow regulation of fluids (gas, liquid). Unlike traditional single-stage switching solenoid valves, its core advantage lies in its ability to achieve multi-level flow output based on control signals (such as current and voltage). It is commonly used in complex systems requiring precise control of fluid parameters (pressure, flow, temperature). Through pulse width modulation (PWM) signals or combinations of multiple coils, the valve core is controlled to remain at different preset positions (such as 3-stage, 5-stage, 10-stage, etc.), corresponding to different flow levels. However, currently used multi-stage regulating solenoid valves have valve covers fixed by four bolts. When repairing a multi-stage regulating solenoid valve, maintenance personnel need to loosen all four bolts to remove the valve cover, which is quite cumbersome. Utility Model Content

[0003] The main objective of this invention is to provide a multi-stage regulating solenoid valve that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A multi-stage regulating solenoid valve includes a solenoid valve body and a solenoid valve cover. A threaded tube is fixedly connected to the upper surface of the solenoid valve body, and a threaded sleeve is fixedly connected to the lower surface of the solenoid valve cover. A threaded tube is threaded onto the outer surface of the threaded sleeve. Limiting structures are provided at the front and rear ends of the solenoid valve cover and the solenoid valve body. The limiting structures include a fixing plate, a rectangular through hole, a rectangular insert block, a mating block, a rectangular slot, a circular groove, a circular locking rod, a circular sliding groove, a return spring, a circular slider, a circular guide rod, a fixing block, and a wedge block. Rectangular through holes are provided near the front and rear ends of the solenoid valve cover.

[0006] More preferably, a rectangular insert is slidably installed inside the rectangular through hole, a fixing plate is fixedly installed on the upper surface of the rectangular insert, and a wedge block is fixedly installed on the lower surface of the rectangular insert.

[0007] More preferably, the upper surface of the solenoid valve body is fixedly equipped with docking blocks near the front and rear ends, and the upper surface of the docking blocks is provided with rectangular slots, into which rectangular inserts are inserted.

[0008] More preferably, a circular groove is provided at the front end of the rectangular slot inside the docking block, a circular slider is slidably installed in the circular groove, and a circular guide rod is fixedly installed in the middle of the front surface of the circular slider.

[0009] More preferably, a fixing block is fixedly installed on the front surface of the circular guide rod, a reset spring is sleeved on the front end of the circular slider on the outer surface of the circular guide rod, and a circular locking rod is fixedly installed in the middle of the rear surface of the circular slider.

[0010] In a further preferred embodiment, a circular slot is provided on the front surface of the rectangular insert near the lower end, and a circular locking rod is inserted into the circular slot.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In this utility model, by setting the threaded sleeve, threaded tube and limiting structure, when disassembling the solenoid valve body, the fixing block is pulled outward to make the circular locking rod disengage from the circular locking groove. Then, the fixing plate is pulled upward to drive the rectangular insert fixedly installed on the lower surface of the fixing plate to disengage from the rectangular slot and the rectangular through hole. Then, the solenoid valve cover is rotated to drive the threaded sleeve to rotate spirally on the outer surface of the threaded tube until it disengages, so that the solenoid valve cover can be disassembled. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a multi-stage regulating solenoid valve according to the present invention;

[0014] Figure 2 This is a cross-sectional view of a multi-stage regulating solenoid valve according to the present invention.

[0015] Figure 3 This utility model relates to a multi-stage regulating solenoid valve. Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This utility model relates to a multi-stage regulating solenoid valve. Figure 2 Enlarged view of section B in the middle.

[0017] In the diagram: 1. Solenoid valve body; 2. Solenoid valve cover; 3. Threaded sleeve; 4. Threaded tube; 5. Limiting structure; 501. Fixing plate; 502. Rectangular through hole; 503. Rectangular insert; 504. Connecting block; 505. Rectangular slot; 506. Circular slot; 507. Circular locking rod; 508. Circular slide groove; 509. Return spring; 510. Circular slider; 511. Circular guide rod; 512. Fixing block; 513. Wedge block. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Participation Figure 1-4As shown, a multi-stage regulating solenoid valve includes a solenoid valve body 1 and a solenoid valve cover 2. A threaded tube 4 is fixedly connected to the upper surface of the solenoid valve body 1, and a threaded sleeve 3 is fixedly connected to the lower surface of the solenoid valve cover 2. The threaded tube 4 is threadedly installed on the outer surface of the threaded sleeve 3. Limiting structures 5 are provided at the front and rear ends of the solenoid valve cover 2 and the solenoid valve body 1. The limiting structure 5 includes a fixing plate 501, a rectangular through hole 502, a rectangular insert block 503, a mating block 504, a rectangular slot 505, a circular slot 506, a circular locking rod 507, a circular sliding groove 508, a return spring 509, a circular slider 510, a circular guide rod 511, a fixing block 512, and a wedge block 513. Rectangular through holes 502 are provided near the front and rear ends of the solenoid valve cover 2.

[0020] Specifically, by using the threaded tube 4 fixedly connected to the upper surface of the solenoid valve body 1 and the threaded sleeve 3 fixedly connected to the lower surface of the solenoid valve cover 2, the threaded tube 4 can be aligned with the threaded sleeve 3 and then screwed until tightened, thus initially fixing the solenoid valve cover 2 and the solenoid valve body 1.

[0021] Participation Figure 2-4 As shown, a rectangular insert 503 is slidably installed in the rectangular through hole 502. A fixing plate 501 is fixedly installed on the upper surface of the rectangular insert 503. A wedge block 513 is fixedly installed on the lower surface of the rectangular insert 503. A docking block 504 is fixedly installed on the upper surface of the solenoid valve body 1 near the front and rear ends. A rectangular slot 505 is opened on the upper surface of the docking block 504, and the rectangular insert 503 is inserted into the rectangular slot 505.

[0022] Specifically, the rectangular insert 503, which is slidably installed in the rectangular through hole 502, and the fixing plate 501, which is fixedly installed on the upper surface of the rectangular insert 503, can be aligned with the rectangular through hole 502 and inserted until the rectangular insert 503 is inserted into the rectangular slot 505 opened on the upper surface of the mating block 504.

[0023] Participation Figure 2-4 As shown, a circular groove 508 is provided at the front end of the rectangular slot 505 inside the docking block 504. A circular slider 510 is slidably installed in the circular groove 508. A circular guide rod 511 is fixedly installed in the middle of the front surface of the circular slider 510.

[0024] Specifically, by creating a circular groove 508 at the front end of the rectangular slot 505 inside the mating block 504 and sliding a circular slider 510 within the circular groove 508, the circular slider 510 can slide within the circular groove 508, thereby driving the circular guide rod 511 fixedly mounted on the front surface of the circular slider 510 to move forward.

[0025] Participation Figure 2-4As shown, a fixing block 512 is fixedly installed on the front surface of the circular guide rod 511. A reset spring 509 is sleeved on the front end of the circular slider 510 on the outer surface of the circular guide rod 511. A circular locking rod 507 is fixedly installed in the middle of the rear surface of the circular slider 510. A circular slot 506 is opened near the lower end of the front surface of the rectangular insert block 503. The circular locking rod 507 is inserted into the circular slot 506.

[0026] Specifically, by using the return spring 509 sleeved on the front end of the circular slider 510 on the outer surface of the circular guide rod 511 and the circular locking rod 507 fixedly installed in the middle of the rear surface of the circular slider 510, the wedge block 513 fixedly installed on the lower surface of the rectangular insert 503 moves downward during the process of the rectangular insert 503 being inserted into the rectangular slot 505 on the upper surface of the mating block 504. This causes the circular locking rod 507 to be squeezed, and the circular slider 510 fixedly installed on the front surface of the circular locking rod 507 to slide in the circular groove 508, squeezing the return spring 509 until the circular locking rod 507 is aligned with the circular slot 506 near the lower end of the front surface of the rectangular insert 503. Under the action of the elastic force of the return spring 509, the circular locking rod 507 is inserted into the circular slot 506, limiting the movement of the solenoid valve cover 2 and the solenoid valve body 1, and preventing rotation between the solenoid valve cover 2 and the solenoid valve body 1.

[0027] It should be noted that this utility model is a multi-stage regulating solenoid valve. When it is necessary to disassemble the solenoid valve body 1, pull the fixing block 512 outward, so that the fixing block 512 drives the circular slider 510 fixedly installed on the rear surface of the circular guide rod 511 to slide forward in the circular groove 508 and squeeze the return spring 509. At the same time, it drives the circular locking rod 507 fixedly installed in the middle of the rear surface of the circular slider 510 to move forward and disengage from the circular locking groove 506 opened near the lower end of the front surface of the rectangular insert 503. Then, pull the fixing plate 501 upward, so that the rectangular insert 503 fixedly installed on the lower surface of the fixing plate 501 disengages from the rectangular slot 505 and the rectangular through hole 502. Then, rotate the solenoid valve cover 2, so that the threaded sleeve 3 rotates spirally on the outer surface of the threaded tube 4 until it disengages, and the solenoid valve cover 2 can be removed.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-stage regulating solenoid valve, characterized in that, The device includes a solenoid valve body (1) and a solenoid valve cover (2). A threaded tube (4) is fixedly connected to the upper surface of the solenoid valve body (1), and a threaded sleeve (3) is fixedly connected to the lower surface of the solenoid valve cover (2). A threaded tube (4) is threaded onto the outer surface of the threaded sleeve (3). Limiting structures (5) are provided at the front and rear ends of the solenoid valve cover (2) and the solenoid valve body (1). The limiting structures (5) include a fixing plate (501), a rectangular through hole (502), a rectangular insert (503), a docking block (504), a rectangular slot (505), a circular slot (506), a circular locking rod (507), a circular sliding groove (508), a reset spring (509), a circular slider (510), a circular guide rod (511), a fixing block (512), and a wedge block (513). A rectangular through hole (502) is provided near the front and rear ends of the solenoid valve cover (2).

2. The multi-stage regulating solenoid valve according to claim 1, characterized in that: A rectangular insert (503) is slidably installed inside the rectangular through hole (502). A fixing plate (501) is fixedly installed on the upper surface of the rectangular insert (503), and a wedge block (513) is fixedly installed on the lower surface of the rectangular insert (503).

3. A multi-stage regulating solenoid valve according to claim 2, characterized in that: The upper surface of the solenoid valve body (1) is fixedly equipped with docking blocks (504) near the front and rear ends. A rectangular slot (505) is opened on the upper surface of the docking block (504), and a rectangular insert (503) is inserted into the rectangular slot (505).

4. A multi-stage regulating solenoid valve according to claim 3, characterized in that: A circular groove (508) is provided at the front end of the rectangular slot (505) inside the docking block (504). A circular slider (510) is slidably installed in the circular groove (508). A circular guide rod (511) is fixedly installed in the middle of the front surface of the circular slider (510).

5. A multi-stage regulating solenoid valve according to claim 4, characterized in that: A fixing block (512) is fixedly installed on the front surface of the circular guide rod (511), a reset spring (509) is sleeved on the front end of the circular slider (510) on the outer surface of the circular guide rod (511), and a circular locking rod (507) is fixedly installed in the middle of the rear surface of the circular slider (510).

6. A multi-stage regulating solenoid valve according to claim 5, characterized in that: The rectangular insert (503) has a circular slot (506) on its front surface near the lower end, and a circular rod (507) is inserted into the circular slot (506).

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