A split lock valve
By introducing protective and support mechanisms into the split-type slag lock valve, the corrosion problem caused by exposed bolts is solved, improving the stability and service life of the valve and ensuring stable operation and operational accuracy under high pressure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN NORTH REFINING & CHEM VALVE CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-05
AI Technical Summary
In existing split-type slag lock valves, exposed bolts may be susceptible to corrosion or damage, affecting the valve's stability and service life.
A split-type slag-locking valve, comprising a protective mechanism and a support mechanism, was designed. The protective mechanism protects the bolts by covering them with a protective strip, while the support mechanism disperses stress through an arc-shaped seat and a protective sleeve, thereby enhancing structural stability and compressive strength.
It effectively prevents external impurities from entering, extends the service life of the valve, improves structural stability and operational accuracy, and ensures stable operation of the valve under high pressure.
Smart Images

Figure CN224326749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of valves, specifically a split-type slag lock valve. Background Technology
[0002] The slag lock valve is a device used for measuring process media fluids. In coal chemical industry projects, the slag lock valve is one of the important devices for measuring process media fluids. The slag lock valve has the characteristics of low fluid resistance, smooth flow, fast opening and closing, and easy automation control. It is widely used in coal chemical, polysilicon, sugar refining, mining and other industries.
[0003] For example, a split-type slag lock valve with authorization announcement number "CN219639506U" solves the problems of existing split-type slag lock valves, such as the valve stem easily seizing on the valve body and the valve opening and closing torque being large. The above-mentioned valve stem positioning rings ensure that the upper and lower valve stems are on the same axis through the first and second valve stem positioning rings. The addition of the first and second bushings prevents the corresponding valve stem positioning rings from directly contacting the corresponding valve stems, thus preventing the corresponding valve stems from seizing due to deformation of the corresponding valve stem positioning rings during the locking process of the left and right valve bodies, which would make the valve stem difficult to open and close. Considering that the bolts in the existing left and right valve body locking process are in a state of long-term exposure and lack effective protection measures, in some specific working environments, the exposed bolts may be corroded or damaged, thereby affecting the stability and service life of the entire valve. Utility Model Content
[0004] The purpose of this invention is to solve the problem that exposed bolts in existing split-type slag lock valves may be corroded or damaged, thus affecting the stability and service life of the entire valve, and to propose a split-type slag lock valve.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a split-type slag lock valve, comprising a left valve body and a right valve body, wherein the left valve body is threadedly connected to the right valve body by bolts, the upper end of the left valve body is fixedly connected to a valve seat, the inner wall of the valve seat is fixedly connected to a sealing ring, the inner wall of the sealing ring is fixedly connected to a valve stem, and a protective mechanism is connected to the upper end of the left valve body.
[0006] This design, which ensures a tight connection between the valve stem and the sealing ring, makes the valve more flexible during opening and closing, and reduces wear caused by friction.
[0007] Preferably, the protective mechanism includes a protective strip, the outer side of which is fitted to the left valve body, the lower end of which is fixedly connected to the base, the inner wall of which is machined with a groove, and the inner wall of which is fixedly connected to the locking block.
[0008] This protective mechanism effectively prevents external impurities from entering the left valve body, thereby extending the valve's service life. Furthermore, the protective strip design not only enhances structural stability but also facilitates disassembly and replacement, improving maintenance efficiency.
[0009] Preferably, the inner wall of the base is machined with mounting holes, and the upper end of the left valve body is connected to a support mechanism.
[0010] The mounting holes on this base provide additional fixing points for the overall structure, ensuring a stable connection even under high pressure.
[0011] Preferably, the support mechanism includes a support rod, the lower end of which is threadedly connected to the left valve body by a bolt, the upper end of which is fixedly connected to the arc-shaped seat, and the lower end of which is fixedly connected to one side of the protective sleeve.
[0012] The addition of this support mechanism further enhances the valve's pressure resistance. The combination of the arc-shaped seat and the protective sleeve effectively disperses the stress generated during actuator operation, preventing excessive local stress from causing deformation.
[0013] Preferably, the arc-shaped seat is fixedly connected to the actuator by bolts, and a valve stem is installed at the output end of the actuator.
[0014] This design, which connects the actuator to the arc-shaped seat, ensures the overall structural robustness while facilitating disassembly and maintenance. The valve stem, driven by the actuator, achieves precise switching control, improving the valve's operational accuracy and response speed.
[0015] Preferably, the lower end of the valve stem is fixedly connected to the valve plate.
[0016] This feature ensures the valve stem and valve plate are fixedly connected, guaranteeing synchronization during valve opening and closing and preventing operational failures due to loose connections.
[0017] Preferably, the outer wall of the actuator is adhered to the shielding ring.
[0018] The rubber shielding ring is designed to protect the external screws of actuator 2, preventing damage from the external environment and ensuring the long-term stable operation of the valve.
[0019] The present invention proposes a split-type slag lock valve, which has the following advantages: by placing the opening of the control aluminum alloy protective strip on the outside of the left and right valve bodies, the groove on the inside of the protective strip will fit onto the bolts at both ends of the left and right valve bodies. This provides external protection for the protective strip, and the protective sleeve will cover the lower end of the arc-shaped seat for further protection, thereby increasing the corrosion resistance of the installation location and improving the stability and service life of the entire valve. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 for Figure 1 Schematic diagram of the assembly structure of the left and right valve bodies;
[0022] Figure 3 for Figure 1 Schematic diagram of the central protective mechanism;
[0023] Figure 4 for Figure 1 Schematic diagram of the central support structure;
[0024] Figure 5 for Figure 1 Schematic diagram of the left and middle valve body structure;
[0025] Figure 6 for Figure 1 Schematic diagram of the valve stem and valve plate structure.
[0026] In the diagram: 1. Left valve body, 2. Right valve body, 3. Valve seat, 4. Sealing ring, 5. Valve stem, 6. Protective mechanism, 601. Protective strip, 602. Base, 603. Groove, 604. Locking block, 7. Mounting hole, 8. Support mechanism, 801. Support rod, 802. Arc-shaped seat, 803. Protective sleeve, 9. Actuator, 10. Valve plate, 11. Shielding ring. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] Example 1:
[0029] Please see Figure 1-6 In this embodiment, a split-type slag lock valve includes a left valve body 1 and a right valve body 2. The left valve body 1 is threadedly connected to the right valve body 2 by bolts. The upper end of the left valve body 1 is fixedly connected to the valve seat 3. The inner wall of the valve seat 3 is fixedly connected to the sealing ring 4. The inner wall of the sealing ring 4 is fixedly connected to the valve stem 5. A protective mechanism 6 is connected to the upper end of the left valve body 1.
[0030] The protective mechanism 6 includes a protective strip 601, which fits onto the bolts at both ends of the left valve body 1 and the right valve body 2 through the groove 603 on the inner side of the protective strip 7, so that the protective strip 7 can provide external protection. The outer side of the protective strip 601 is in contact with the left valve body 1, and the lower end of the protective strip 601 is fixedly connected to the base 602. The inner wall of the protective strip 601 is machined with a groove 603, and the inner wall of the protective strip 601 is fixedly connected to the locking block 604.
[0031] The inner wall of the base 602 is machined with mounting holes 7. The upper end of the left valve body 1 is connected to a support mechanism 8. The support mechanism 8 includes a support rod 801. The lower end of the support rod 801 is threadedly connected to the left valve body 1 by bolts. The upper end of the support rod 801 is fixedly connected to the arc-shaped seat 802. The lower end of the arc-shaped seat 802 is fixedly connected to one side of the protective sleeve 803.
[0032] The protective strip 7, made of aluminum alloy, is placed over the outside of the left valve body 1 and the right valve body 2. The groove 603 on the inside of the protective strip 7 fits onto the bolts at both ends of the left valve body 1 and the right valve body 2. This provides external protection for the protective strip 7, and the protective sleeve 803 covers the lower end of the arc-shaped seat 802 for protection. This increases the corrosion resistance of the installation location and improves the stability and service life of the entire valve.
[0033] The arc-shaped seat 802 is fixedly connected to the actuator 9 by bolts. The output end of the actuator 9 is equipped with a valve stem 5. The lower end of the valve stem 5 is fixedly connected to the valve plate 10. The outer wall of the actuator 9 is adhered to the shielding ring 11.
[0034] Working principle:
[0035] In terms of assembly, the left valve body 1 and the right valve body 2 are connected by bolts, and the protrusion of the left valve body 1 is inserted into the inside of the right valve body 2, improving the stability and sealing of the connection between the left valve body 1 and the right valve body 2, while facilitating later disassembly and maintenance. The protective strip 601 in the protective mechanism 6 is assembled into one piece with the base 602 by a fixed connection. The aluminum alloy protective strip 7 has an enlarged opening at the top to fit over the outside of the left valve body 1 and the right valve body 2, and the groove 603 on the inner side of the protective strip 7 fits onto the bolts at both ends of the left valve body 1 and the right valve body 2, so that the protective strip 7 can protect the outside. The locking block at one end of the protective strip 7 is connected to the other end... The through hole is tightened to create an opening at the end of the protective strip 7 for fastening, ensuring that the end of the protective strip 7 will not open automatically, thus preventing unstable connection between the protective strip 7 and the outer sides of the left valve body 1 and the right valve body 2. At the same time, the support rod 801 of the support mechanism 8 is connected to the left valve body 1 by bolts. The arc-shaped seat 802 and the rubber protective sleeve 803 are also fixedly connected. When the protective sleeve 803 is bent, the arc-shaped seat 802 will deform, allowing the lower end of the actuator 9 to be bolted to the arc-shaped seat 802. The protective sleeve 803 will then cover the lower end of the arc-shaped seat 802 again for protection, increasing the corrosion resistance of the installation location.
[0036] In terms of application, the tight connection between the aluminum alloy sealing ring 4 and the valve stem 4 ensures the valve remains flexible and reliable even during frequent opening and closing. The stress-dispersing design of the support mechanism 8 and the arc-shaped seat 802 greatly enhances the valve's pressure resistance, enabling it to meet the operational requirements of high-pressure environments. Simultaneously, the protective ring 11 further improves the durability of the equipment by protecting the external screws of the actuator 9, ensuring stable performance over long-term use. When the actuator 9 receives a control signal, it converts the signal into mechanical motion through its internal drive mechanism, thereby driving the valve stem 5 to rise, fall, or rotate. The movement of the valve stem 5 is further transmitted to the valve plate 10, allowing the valve plate 10 to switch between open and closed states within the valve body. In the open state, the medium can smoothly pass through the internal channel of the valve body, while in the closed state, the valve plate 10 and the sealing ring 4 are tightly fitted, forming a reliable seal and preventing medium flow. Throughout the entire workflow, the synergistic effect between the components ensures the accuracy and stability of valve operation, while also considering sealing performance and durability, meeting the needs of different operating conditions.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A split-type slag-locking valve, comprising a left valve body (1) and a right valve body (2), wherein the left valve body (1) is threadedly connected to the right valve body (2) by bolts, characterized in that: The upper end of the left valve body (1) is fixedly connected to the valve seat (3), the inner wall of the valve seat (3) is fixedly connected to the sealing ring (4), the inner wall of the sealing ring (4) is fixedly connected to the valve stem (5), and the upper end of the left valve body (1) is connected to a protective mechanism (6).
2. The split-type slag-locking valve according to claim 1, characterized in that: The protective mechanism (6) includes a protective strip (601), the outer side of which is in contact with the left valve body (1), the lower end of which is fixedly connected to the base (602), the inner wall of which is machined with a groove (603), and the inner wall of which is fixedly connected to the locking block (604).
3. The split-type slag-locking valve according to claim 2, characterized in that: The inner wall of the base (602) is machined with mounting holes (7), and the upper end of the left valve body (1) is connected to a support mechanism (8).
4. The split-type slag-locking valve according to claim 3, characterized in that: The support mechanism (8) includes a support rod (801), the lower end of which is threadedly connected to the left valve body (1) by bolts, the upper end of which is fixedly connected to the arc-shaped seat (802), and the lower end of which is fixedly connected to one side of the protective sleeve (803).
5. The split-type slag-locking valve according to claim 4, characterized in that: The arc-shaped seat (802) is fixedly connected to the actuator (9) by bolts, and the output end of the actuator (9) is equipped with a valve stem (5).
6. The split-type slag-locking valve according to claim 1, characterized in that: The lower end of the valve stem (5) is fixedly connected to the valve plate (10).
7. The split-type slag-locking valve according to claim 5, characterized in that: The outer wall of the actuator (9) is adhered to the shielding ring (11).