Special tool for MBN series pressure regulator valve seat

Abstract

The utility model relates to the technical field of pressure regulators, and discloses an MBN series pressure regulator valve seat special tool which comprises a sleeve, a fixing rod is fixedly connected in the sleeve, the top of the fixing rod is connected with a fixing disc in a sliding mode, and the bottom of the fixing rod is connected with a linkage assembly providing connection in a sliding mode. The bottom of the fixing rod is slidably connected with a lower threaded sleeve, the top of the sleeve is fixedly connected with a plurality of boss pawls, and the bottoms of the boss pawls are fixedly connected with valve seat groove openings. In the utility model, the position is fixed through the fixing disc at the upper end of the fixing rod, and the combination of the boss pawl of the fixing sleeve and the notch surface of the valve seat is tightened by utilizing the screw sleeves at the upper end and the lower end of the fixing rod, so that the non-damage disassembly of the valve seat of the pressure regulator is ensured, and the maintenance efficiency and integrity are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulators, in particular to a special tool for valve seats of MBN series pressure regulators. Background Art

[0002] The MBN series pressure regulator is a widely used direct-acting pressure regulator featuring a high flow coefficient, a wide adjustment range, fast response, and precise control. The valve seat is a key component installed inside the valve body. It forms a seal with the valve core, effectively preventing gas leakage when the pressure regulator is closed and maintaining a tight seal in the pipeline system.

[0003] In existing technology, the pressure regulator body is relatively large, and the valve seat that requires maintenance is located at the bottom of the body. Due to its location during disassembly, the boss pawl on the upper end of the sleeve tool cannot be tightly engaged with the groove at the bottom of the valve seat. This causes the sleeve to slip during the rotational loosening process, indirectly damaging the interior of the valve seat and the valve port. This leads to the failure of the valve seat sealing performance during operation of the pressure regulator, making it impossible to maintain stable internal pressure of the pressure regulator. Therefore, to address the above issues, a special tool for the valve seat of the MBN series pressure regulator is proposed. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a special tool for the valve seat of MBN series pressure regulator, which aims to improve the problem that some devices in the existing technology cannot be quickly repaired.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A special tool for the valve seat of an MBN series pressure regulator, comprising a sleeve, a fixed rod fixedly connected to the interior of the sleeve, a fixed plate slidably connected to the top of the fixed rod, a linkage assembly slidably connected to the bottom of the fixed rod, a lower screw sleeve slidably connected to the bottom of the fixed rod, a plurality of boss pawls fixedly connected to the top of the sleeve, and a valve seat groove fixedly connected to the bottom of the boss pawl;

[0007] As a further description of the above technical solution:

[0008] The linkage assembly includes an upper screw sleeve, the inner portion of the upper screw sleeve is slidably connected to the top of the fixed rod, and the outer portion of the upper screw sleeve is rotatably connected to a fixed disk;

[0009] As a further description of the above technical solution:

[0010] The outside of the sleeve is fixedly connected to a handle, and the outside of the sleeve is detachably connected to a valve seat body;

[0011] As a further description of the above technical solution:

[0012] The bottom of the sleeve is fixedly connected with two handles.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the position of the fixing plate at the upper end of the fixing rod is fixed, and the screw sleeves at the upper and lower ends of the fixing rod are used to tighten the engagement between the pawl of the fixing sleeve boss and the recessed surface of the valve seat, thereby ensuring the non-damaging disassembly of the pressure regulator valve seat and greatly improving the maintenance efficiency and integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional schematic diagram of a special tool for the valve seat of MBN series pressure regulator proposed in the utility model;

[0016] Figure 2 This is a structural diagram of the lower screw sleeve of a special tool for the valve seat of an MBN series pressure regulator proposed in the utility model;

[0017] Figure 3 This is a structural diagram of a fixing plate of a special tool for the valve seat of an MBN series pressure regulator proposed in the utility model;

[0018] Figure 4 This is a structural diagram of a fixing rod of a special tool for the valve seat of an MBN series pressure regulator proposed in the utility model;

[0019] Figure 5 This is a structural diagram of a fixing plate of a special tool for the valve seat of an MBN series pressure regulator proposed in the utility model;

[0020] Figure 6 This is a structural diagram of the valve seat body of a special tool for valve seat of MBN series pressure regulator proposed by the utility model;

[0021] Figure 7 This is a structural schematic diagram of the valve seat body of a special tool for valve seats of MBN series pressure regulators proposed by the utility model.

[0022] Legend:

[0023] 1. Upper screw sleeve; 2. Fixed plate; 3. Valve seat body; 4. Boss pawl; 5. Valve seat groove; 6. Sleeve; 7. Handle; 8. Lower screw sleeve; 9. Fixed rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 、 Figure 2 、 Figure 4 , a special tool for the valve seat of MBN series pressure regulator, including a sleeve 6, made of high-strength alloy steel, with good wear resistance and strength, able to withstand large torque and pressure, the surface of the sleeve 6 is finely processed and smooth, and its outer diameter and inner diameter are designed according to the use requirements of the tool and the size of the adapted valve seat to ensure the matching accuracy with other components, the tail of the sleeve 6 is designed with two handles 7 perpendicular to the body and symmetrical to the axis center, the handle 7 is a cylindrical rod-shaped, made of metal material, and the surface is anti-slip treated, such as with a rubber anti-slip sleeve, which is convenient for the operator to hold and apply force, the inside of the sleeve 6 is fixedly connected to a fixing rod 9, the fixing rod 9 is cylindrical, made of high-strength stainless steel, and has high hardness and stability, the top of the fixing rod 9 is slidably connected to the fixing disk 2, the fixing disk 2 is a circular disk-shaped, made of metal material, and its diameter is slightly smaller than the inner diameter of the sleeve 6, and the bottom of the fixing rod 9 is slidably connected to a linkage component that provides a connection;

[0026] Reference Figure 1 、 Figure 3 The linkage assembly includes an upper screw sleeve 1, which is cylindrical and has a threaded interior. It is made of metal and has good thread accuracy and strength. The interior of the upper screw sleeve 1 is slidably connected to the top of the fixed rod 9, and the external rotation of the upper screw sleeve 1 is connected to the fixed plate 2, so that the upper screw sleeve 1 can drive the fixed plate 2 to perform corresponding movements during movement without hindering the sliding of the fixed plate 2 on the fixed rod 9. The bottom of the fixed rod 9 is slidably connected to the lower screw sleeve 8. The lower screw sleeve 8 is similar to the upper screw sleeve 1, is cylindrical and has a threaded interior and is made of metal. The top of the sleeve 6 is fixedly connected with a plurality of boss ratchet pawls 4. The boss ratchet 4 is a block structure made of metal material with high strength and wear resistance. The bottom of the boss ratchet 4 is fixedly connected with a valve seat groove 5. The valve seat groove 5 is a groove that matches the shape of the valve seat and is made of metal material with good precision and fit. When the tool is in use, the boss pawl 4 and the valve seat groove 5 can fit tightly with the valve seat to achieve the grasping, fixing or operation of the valve seat, ensuring the stability and accuracy of the tool when installing, removing or adjusting the valve seat;

[0027] Reference Figures 5 to 7The outside of the sleeve 6 is fixedly connected to a handle 7. The function of the handle 7 is as mentioned above, which provides a force point for the operator to facilitate the operation of the tool. The outside of the sleeve 6 is detachably connected to the valve seat body 3. The valve seat body 3 is a component designed according to the specific shape and size of the valve seat of the MBN series pressure regulator. It is made of metal or other suitable materials and has good sealing and durability. The bottom of the sleeve 6 is fixedly connected to two handles 7. The bottom handle 7 and the tail sleeve 6 handle 7 work together to provide the operator with a multi-angle force application method, making it more flexible and convenient when operating the tool, and can adapt to different operating environments and requirements, thereby improving work efficiency and operation accuracy.

[0028] Working Principle: First, the main body of the sleeve 6 is designed with four axially symmetrical protruding pawls 4. These pawls are designed to tightly engage the bottom seat grooves 5 of the valve seat body 3, ensuring a stable connection. The rear end of the device is equipped with two axially symmetrical handles 7, perpendicular to the main body, for easy operation. When the device is ready for operation, a fixing rod 9 is passed through the interior of the pressure regulator. The upper end of the fixing rod 9 passes through the first fixing plate 2, which has multiple holes to accommodate the screws of the lower cover of the pressure regulator body of different specifications. The upper end of the fixing rod 9 also passes through the second upper screw sleeve 1, which has threaded openings for adjusting and locking the upper end of the fixing rod 9 to ensure it does not loosen during operation. The lower end of the fixing rod 9 passes through the lower screw sleeve 8, which also has threaded openings for locking the bottom of the sleeve 6, thereby firmly securing the protruding pawls 4 in the valve seat grooves 5 of the valve seat body 3. This structure ensures a stable grip on the valve seat. In actual operation, the user manually rotates sleeve 6 and handle 7, driving the rotation of sleeve 6, allowing the boss pawl 4 to rotate and loosen the valve seat body 3 without damage. This process ensures that the connection between the valve seat and the body is smoothly released, while also avoiding damage caused by improper operation. In summary, this device achieves safe and effective loosening of the valve seat through the adjustment of the fixing rod 9 and the rotation of the sleeve 6 and handle 7, facilitating maintenance and replacement of the pressure regulator and improving overall operational efficiency and safety.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special tool for the valve seat of MBN series pressure regulator, comprising a sleeve (6), characterized in that: The interior of the sleeve (6) is fixedly connected to a fixing rod (9), the top of the fixing rod (9) is slidably connected to a fixing plate (2), the bottom of the fixing rod (9) is slidably connected to a linkage assembly providing a connection, the bottom of the fixing rod (9) is slidably connected to a lower screw sleeve (8), the top of the sleeve (6) is fixedly connected to a plurality of boss pawls (4), and the bottom of the boss pawls (4) is fixedly connected to a valve seat groove (5).

2. The MBN series pressure regulator valve seat special tool according to claim 1, characterized in that: The linkage assembly comprises an upper screw sleeve (1), the interior of the upper screw sleeve (1) is slidably connected to the top of the fixed rod (9), and the exterior of the upper screw sleeve (1) is rotatably connected to a fixed disk (2).

3. The MBN series pressure regulator valve seat special tool according to claim 1, characterized in that: The outside of the sleeve (6) is fixedly connected to a handle (7), and the outside of the sleeve (6) is detachably connected to a valve seat body (3).

4. The MBN series pressure regulator valve seat special tool according to claim 1, characterized in that: Two handles (7) are fixedly connected to the bottom of the sleeve (6).

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