A new type of manual multi-way valve safety locking electric control mechanism

Abstract

The utility model relates to manual multiway valve technical field provides a new -type manual multiway valve safety locking electric control mechanism, include: locking valve stem, locking casing, solenoid spool and solenoid, locking valve stem is connected with multiway valve valve stem screw thread, locking valve stem is installed in locking casing, a circle recess is set up on locking valve stem, locking casing is provided solenoid spool, the bottom of solenoid spool stretches into locking casing, the axial direction of solenoid spool is perpendicular with the axial direction of locking valve stem, the valve core body of solenoid spool is in the same vertical plane with recess, the valve sleeve of solenoid spool is equipped with solenoid, the utility model discloses through the power off and power on of control solenoid spool, realizes the locking and the unlocking control of locking valve stem and multiway valve valve stem, prevents the mistaken operation, promotes the essential safety level of equipment.

Description

Technical Field

[0001] This utility model relates to the field of manual multi-way valve technology, and in particular to a novel safety locking electronic control mechanism for manual multi-way valves. Background Technology

[0002] In the hydraulic systems of construction machinery (such as excavators, loaders, and cranes), multi-way directional valves are key components controlling the movement of actuators. Manual multi-way valves are widely used in small and medium-sized equipment due to their simple structure and intuitive operation. However, with increasingly complex operating environments and ever-improving safety standards, the hidden dangers of traditional manual multi-way valves, such as misoperation and lack of protection, are gradually becoming apparent, posing a safety risk to equipment operation.

[0003] In practice, operator negligence or unauthorized operation may cause valve stem malfunction, leading to equipment abnormalities, damage, or even personal injury. Especially during maintenance, shutdown, or transportation, without an effective locking mechanism, multi-way valves are prone to accidental activation of the hydraulic system due to accidental contact or vibration, posing a significant safety hazard.

[0004] Therefore, it is necessary to introduce a safety locking mechanism into manual multi-way valves, using mechanical limiters, locking devices, and other means to physically lock the valve stem and prevent misoperation from the source. Utility Model Content

[0005] This utility model mainly addresses the technical problem that traditional manual multi-way valves lack a safety locking mechanism, which may lead to valve stem malfunction, resulting in equipment abnormalities, damage, or even personal injury. It proposes a novel safety locking electronic control mechanism for manual multi-way valves, which controls the locking and unlocking of the locking valve stem and the multi-way valve stem by controlling the de-energization and energization of the solenoid valve core, preventing misoperation and improving the inherent safety level of the equipment.

[0006] This utility model provides a novel manual multi-way valve safety locking electronic control mechanism, including: a locking valve stem, a locking housing, a solenoid valve core, and a solenoid coil;

[0007] The locking valve stem is threadedly connected to the multi-way valve stem.

[0008] The locking valve stem is installed inside the locking housing; a groove is formed on the locking valve stem;

[0009] The locking housing is provided with an electromagnetic valve core; the bottom of the electromagnetic valve core extends into the locking housing, and the axis of the electromagnetic valve core is perpendicular to the axis of the locking valve rod; the valve core body of the electromagnetic valve core and the groove are in the same vertical plane, and an electromagnetic coil is sleeved on the valve sleeve of the electromagnetic valve core.

[0010] Preferably, a sealing cap is fixedly provided at the end of the locking housing away from the valve stem of the multi-way valve.

[0011] Preferably, the multi-way valve stem is inserted into the multi-way valve body socket.

[0012] Preferably, the valve sleeve of the solenoid valve core is threadedly connected to the locking housing.

[0013] Preferably, the valve sleeve of the solenoid valve core is connected to the solenoid coil via a nut.

[0014] Preferably, the electromagnetic coil is electrically connected to the controller.

[0015] Preferably, the controller is electrically connected to a contact-type inductive switch;

[0016] The contact-type inductive switch is installed on the driver's seat of the vehicle where the manual multi-way valve is located.

[0017] The present invention provides a novel manual multi-way valve safety locking electronic control mechanism, which has the following advantages compared with the prior art:

[0018] 1. By controlling the power-off and power-on of the solenoid valve core, the locking and unlocking control of the locking valve stem and the multi-way valve stem can be realized; the physical locking of the multi-way valve stem is realized through electrical control, which prevents misoperation from the source, improves the inherent safety level of the equipment, and also lays the foundation for the optimization of human-machine efficiency and intelligent control of engineering machinery.

[0019] 2. This utility model locks the multi-way valve when the equipment is not in operation or during maintenance, which can effectively prevent unauthorized operation or accidental triggering of hydraulic action, effectively avoid accidental start-up and improper action, avoid equipment damage or personal injury caused by misoperation, protect the personal safety of operators and maintenance personnel, and significantly improve the safety of the whole machine operation.

[0020] 3. This utility model can be combined with seat detection, effectively avoiding the risk of malfunction caused by no-load or unauthorized operation. It is a typical application of the "operator in place - system unlock" concept of modern construction machinery, and improves the intelligence and inherent safety level of the whole machine.

[0021] 4. The safety locking electric control mechanism of this utility model has a simple structure, is easy to integrate and install, and can be flexibly modified or retrofitted according to different equipment and usage requirements, with good adaptability and economy. Attached Figure Description

[0022] Figure 1 This is a disassembly diagram of the novel manual multi-way valve safety locking electronic control mechanism provided by this utility model;

[0023] Figure 2 This is a cross-sectional view of the novel manual multi-way valve safety locking electronic control mechanism provided by this utility model in the power-off state;

[0024] Figure 3 This is a cross-sectional view of the novel manual multi-way valve safety locking electronic control mechanism provided by this utility model in the energized state.

[0025] Reference numerals in the attached figures: 1. Multi-way valve body; 2. Multi-way valve stem; 3. Locking stem; 4. Locking housing; 5. Sealing cap; 6. Solenoid valve core; 7. Solenoid coil; 8. Nut; 9. Groove; 601. Valve core body; 602. Valve sleeve. Detailed Implementation

[0026] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0027] like Figure 1-3 As shown in the figure, the present invention provides a novel manual multi-way valve safety locking electronic control mechanism, characterized in that it includes: a locking valve stem 3, a locking housing 4, a solenoid valve core 6, and a solenoid coil 7.

[0028] The locking valve stem 3 is threadedly connected to the multi-way valve stem 2; the multi-way valve stem 2 is inserted into the insertion hole of the multi-way valve body 1. The locking valve stem 3 is movably installed inside the locking housing 4, and the locking valve stem 3 can rotate under the drive of the multi-way valve stem 2; a groove 9 is formed on the locking valve stem 3. The locking housing 4 is fixed to the multi-way valve body 1.

[0029] The locking housing 4 is equipped with an electromagnetic valve core 6; the electromagnetic valve core 6 typically includes a fixed valve sleeve 602 and a movable valve core body 601. The valve core body 601 is disposed inside the valve sleeve 602. An electromagnetic coil 7 is mounted outside the valve sleeve 602. The valve core body 601 is typically made of a soft magnetic material with good magnetic permeability (such as pure iron, low carbon steel, iron-nickel alloy, or iron-silicon alloy). A spring is typically provided at the top of the valve core body 601. When the electromagnetic coil 7 is de-energized, the valve core body 601 extends downward under the action of the spring; when the electromagnetic coil 7 is energized, the electromagnetic coil 7 generates an electromagnetic field, which acts on the valve core body 601, generating an electromagnetic attraction in the magnetic circuit, causing the valve core body 601 to move upward and compress the spring.

[0030] The bottom of the solenoid valve core 6 extends into the locking housing 4. Specifically, the valve sleeve 602 of the solenoid valve core 6 is threadedly connected to the locking housing 4. The axial direction of the solenoid valve core 6 is perpendicular to the axial direction of the locking valve stem 3. The valve core body 601 of the solenoid valve core 6 and the groove 9 are in the same vertical plane, that is, the valve core body 601 and the groove 9 are vertically corresponding. An electromagnetic coil 7 is sleeved on the valve sleeve 602 of the solenoid valve core 6. Specifically, the valve sleeve 602 of the solenoid valve core 6 is connected to the electromagnetic coil 7 through a nut 8.

[0031] The locking housing 4 is secured with a sealing cap 5 by two bolts at the end away from the multi-way valve stem 2. The sealing cap 5 provides a reliable seal.

[0032] Based on the above scheme, the electromagnetic coil 7 is electrically connected to the controller, and the electromagnetic coil 7 is controlled by the controller to be powered on and off.

[0033] The controller of the novel manual multi-way valve safety locking electronic control mechanism of this utility model can be directly operated. As a preferred method, the controller can also be electrically connected to a contact-type inductive switch and controlled by the contact-type inductive switch; the contact-type inductive switch is installed on the driver's seat of the vehicle where the manual multi-way valve is located.

[0034] When the operator is not in the driver's seat of the construction machinery vehicle, the contact-type sensor switch on the driver's seat cannot detect the presence of anyone. The controller cuts off the power supply to the solenoid coil 7, thereby entering the multi-way valve safety lock state. In this state, the solenoid coil 7 is not energized, and the valve core body 601 of the solenoid valve core 6 remains mechanically locked to the locking valve stem 3, forming a physical lock. The locking valve stem 3 and the multi-way valve stem 2 cannot be driven to move, and the multi-way valve is in a safety lock state.

[0035] When the operator sits in the driver's seat of the construction machinery vehicle, the contact-type sensor switch on the driver's seat detects that someone is in the seat, and then supplies power to the solenoid coil 7 through the controller. The valve core body 601 of the solenoid valve core 6 moves upward, disengaging from the original locked position of the locking valve stem 3, releasing the locking valve stem 3, and the multi-way valve is in the unlocked state.

[0036] In other words, the multi-way valve's control function is activated only when the operator is in the driver's seat and has the necessary operating authority, ensuring the safety and controllability of the equipment's operation. This safety unlocking mechanism, based on a combination of seat detection and electromagnetic control, effectively avoids the risk of malfunctions caused by no-load or unauthorized operation. It is a typical application of the "operator in position - system unlocking" concept in modern construction machinery, enhancing the overall machine's intelligence and inherent safety level.

[0037] This utility model discloses a novel manual multi-way valve safety locking electronic control mechanism. During assembly, the multi-way valve stem 2 is first directly inserted into the insertion hole of the multi-way valve body 1, establishing its core control foundation. Then, the locking valve stem 3 is threaded to the end of the multi-way valve stem 2, forming a linkage mechanism. Next, the key component of this linkage mechanism—the locking valve stem 3—is precisely installed into the locking housing 4, ensuring its movement guidance and support. Afterwards, the solenoid valve core 6 is fixed to the locking housing 4 by threads, and the sealing cap 5 is fixed to the locking housing 4 by two bolts. The solenoid valve core 6 constitutes the control core. Finally, with the threaded connection of the nut 8, the solenoid valve core 6 is tightly connected to the solenoid coil 7, thereby completing the functional closed loop of electromagnetic force driving the solenoid valve core 6, realizing the electronic switching and locking of the valve position.

[0038] The working process of a novel manual multi-way valve safety locking electronic control mechanism of this utility model:

[0039] 1. When the electromagnetic coil 7 is de-energized, the multi-way valve is in a safety locked state, such as... Figure 2 As shown:

[0040] When the electromagnetic coil 7 is not energized, the valve core body 601 of the electromagnetic valve core 6 is inserted into the groove 9 of the locking valve stem 3. The electromagnetic valve core 6 and the locking valve stem 3 remain mechanically locked, forming a physical lock. At this time, the locking valve stem 3 cannot be driven to move. Since the multi-way valve stem 2 and the locking valve stem 3 are interconnected and move in coordination, when the locking valve stem 3 is locked by the electromagnetic valve core 6, the multi-way valve stem 2 cannot be pushed, thus achieving forced locking of the multi-way valve operation. At this time, regardless of whether the operator accidentally touches it or there is external mechanical interference, the multi-way valve cannot operate, effectively preventing safety hazards caused by misoperation or unauthorized operation.

[0041] 2. With the electromagnetic coil 7 energized, the multi-way valve is in the unlocked state, such as... Figure 3 As shown:

[0042] When the electromagnetic coil 7 is energized, the electromagnetic valve core 6 is driven by electromagnetic attraction, and the valve core body 601 of the electromagnetic valve core 6 moves upward and disengages from its original locked position (groove 9 of the locking valve stem 3), causing the locking valve stem 3 to enter the released state. At this time, the mechanical restriction on the locking valve stem 3 is released, and the multi-way valve stem 2 and its linkage components can move freely under the action of the operating handle, thereby realizing normal control of the hydraulic actuator.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel manual multi-way valve safety locking electronic control mechanism, characterized in that, include: Locking valve stem (3), locking housing (4), solenoid valve core (6) and solenoid coil (7); The locking valve stem (3) is threadedly connected to the multi-way valve stem (2); The locking valve stem (3) is installed inside the locking housing (4); a groove (9) is formed on the locking valve stem (3); The locking housing (4) is provided with an electromagnetic valve core (6); the bottom of the electromagnetic valve core (6) extends into the locking housing (4), and the axial direction of the electromagnetic valve core (6) is perpendicular to the axial direction of the locking valve rod (3); the valve core body (601) of the electromagnetic valve core (6) and the groove (9) are in the same vertical plane, and the valve sleeve (602) of the electromagnetic valve core (6) is fitted with an electromagnetic coil (7).

2. The novel manual multi-way valve safety locking electronic control mechanism according to claim 1, characterized in that, The locking housing (4) has a sealing cap (5) fixedly installed at the end away from the multi-way valve stem (2).

3. The novel manual multi-way valve safety locking electronic control mechanism according to claim 1, characterized in that, The valve stem (2) of the multi-way valve is inserted into the socket of the valve body (1) of the multi-way valve.

4. The novel manual multi-way valve safety locking electronic control mechanism according to claim 1, characterized in that, The valve sleeve (602) of the solenoid valve core (6) is threadedly connected to the locking housing (4).

5. The novel manual multi-way valve safety locking electronic control mechanism according to claim 4, characterized in that, The valve sleeve (602) of the solenoid valve core (6) is connected to the solenoid coil (7) via a nut (8).

6. The novel manual multi-way valve safety locking electronic control mechanism according to claim 1, characterized in that, The electromagnetic coil (7) is electrically connected to the controller.

7. The novel manual multi-way valve safety locking electronic control mechanism according to claim 6, characterized in that, The controller is electrically connected to a contact-type inductive switch; The contact-type inductive switch is installed on the driver's seat of the vehicle where the manual multi-way valve is located.

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