Outlet air valve tool

Abstract

The utility model discloses an outlet air valve tool, which belongs to the field of machining and comprises a base, the inside of the base is hollow and is sequentially provided with multiple stages of piston rods and an ejector rod, the inside of the base and the inside of each stage of piston rod are respectively provided with a cavity part and a sealing part, and the next stage of piston rod penetrates through the sealing part and is placed in the opposite cavity part. A bottom plate is arranged at the bottom of each stage of piston rod, the size and the shape of the bottom plate are consistent with those of a cavity part surrounding the bottom plate, a through hole is formed in the middle of the bottom plate, and each stage of piston rod can move up and down in the corresponding cavity. According to the outlet air valve tool, the air valve can be automatically disassembled and assembled in a narrow space, the labor intensity can be reduced, the installation precision is improved, potential safety hazards are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an outlet gas valve tooling. Background Art

[0002] The outlet valve of the petrochemical industry's pressure-bearing equipment is usually located at the bottom of the equipment. Due to limited space, traditional installation and removal methods require the cooperation of multiple workers, which is time-consuming and labor-intensive, and poses safety risks. This operation method has the following major disadvantages:

[0003] (1) High labor intensity: Since the gas valve is usually heavy and located at the bottom of the equipment, multiple workers are required to cooperate in the disassembly and assembly process, which increases the labor intensity of the workers and easily leads to fatigue, thereby increasing the risk of operational errors.

[0004] (2) Limited operating space: The space at the bottom of the equipment is usually very limited. Traditional disassembly and assembly methods cannot effectively utilize this limited space. Workers are subject to many restrictions during operation, resulting in low operating efficiency.

[0005] (3) Low alignment accuracy: When installing the air valve on the equipment, it is difficult to ensure the precise alignment of the air valve and the mounting hole by manual operation, which may lead to multiple adjustments, increase the installation time, and may affect the sealing and performance of the air valve.

[0006] (4) Safety hazards: Due to the instability of manual operation, the air valve may slip or tilt during the lifting and alignment process, posing a greater safety risk.

[0007] (5) Equipment loss: Due to the inability to accurately align the parts, forced installation may cause damage to the connection between the gas valve and the equipment, increasing maintenance costs and equipment downtime.

[0008] In the prior art, installation tools for gas valves generally use customized equipment, that is, different tooling is designed for different types of gas valves, as shown in Chinese patents CN 213164208 U and CN 219901916 U. However, there is currently no tooling for the gas valve located at the bottom of the device. Utility Model Content

[0009] The technical problem to be solved by the utility model is to design a tooling device which can realize automatic disassembly and assembly of gas valves in a narrow space, so as to reduce labor intensity, improve installation accuracy, reduce safety hazards and improve work efficiency.

[0010] To solve the above technical problems, the present utility model adopts the following technical solutions: An outlet air valve tooling, including a base, the interior of the base is hollow and is sequentially provided with a multi-stage piston rod and a push rod. The multi-stage piston rod includes a first-stage piston rod, a second-stage piston rod, and a third-stage piston rod with gradually decreasing inner diameters. Cavity parts and sealing parts are provided inside the base and each stage of piston rod. The third-stage piston rod is placed in the cavity part of the second-stage piston rod through the sealing part, the second-stage piston rod is placed in the cavity part of the first-stage piston rod through the sealing part, and the first-stage piston rod is placed in the cavity part of the base through the sealing part. A bottom plate is provided at the bottom of each stage of piston rod. The size and shape of the bottom plate are consistent with the cavity part surrounding it. A through hole is provided in the middle of the bottom plate. Each stage of piston rod can move up and down in its corresponding cavity;

[0011] A first oil pipe interface is provided on the side of the base, and the first oil pipe interface is communicated with the cavity part of the base;

[0012] The push rod is arranged inside the innermost piston rod. A second bottom plate is provided at the bottom of the push rod. The size and shape of the second bottom plate are consistent with the cavity part surrounding it. A connecting shaft is welded to the top of the second bottom plate, and a rotating mechanism is connected to the connecting shaft.

[0013] Further, a second oil pipe interface is provided on the side of the base. Each stage of piston rod includes an inner wall and an outer wall, and there is a gap between the inner and outer walls. An outlet is provided on the inner wall. An oil passage is provided between the inner and outer walls of each stage of piston rod, and the oil passages of all piston rods are communicated through the outlet on the inner wall of the piston rod. One end of the oil passage is communicated with the second oil pipe interface, and the other end is communicated with the inner wall outlet of the last stage of piston rod.

[0014] Further, grooves are provided on the sides of the bottom plate and the second bottom plate, and sealing components are filled in the grooves.

[0015] Further, the rotating mechanism includes a connecting column. The connecting column is arranged on the connecting shaft and can rotate along the connecting shaft. Two positioning bolts are oppositely arranged on the upper surface of the connecting column.

[0016] Further, a fastening bolt is provided at the upper end of the connection between the connecting shaft and the connecting column.

[0017] Further, a thrust ball bearing is provided on the outside of the connecting shaft, and the connecting column is sleeved on the thrust ball bearing.

[0018] Further, handles are oppositely arranged at both ends of the connecting column, and handle ball heads are provided at the ends of the handles.

[0019] Further, handles are provided on both sides of the base, and universal wheels are provided at the bottom end. Beneficial effects

[0020] The present application provides a disassembly and assembly tooling for an export air valve. By connecting to a hydraulic oil through an oil pipe interface, the up and down movement of a multi-stage piston rod is realized, and the positioning of the air valve is achieved through a rotating mechanism, enabling the tooling to have functions of hydraulic lifting and rotating positioning, and allowing for precise installation and disassembly of the air valve. This tooling can freely move within the limited space at the bottom of the equipment, and its overall height is designed to be relatively low, enabling free lifting and operation within the limited space at the bottom of the equipment. At the same time, the tooling also has a relatively long stroke (about twice the height of the main body), ensuring that the air valve can be lifted from the ground to the installation position.

[0021] The present application designs two sets of oil circuit systems, making the tooling descend faster and more stably.

[0022] The present application effectively solves the problems of high labor intensity and high installation difficulty existing in the traditional method, improves the operation efficiency, and significantly reduces the safety hazards caused by limited space. This tooling is simply designed and easy to operate, and is applicable to the installation and disassembly of various export air valves. Brief description of the drawings

[0023] Figure 1 It is a schematic structural diagram of the working state of the export air valve tooling of the present utility model.

[0024] Figure 2 It is a schematic structural diagram of the retracted state of the export air valve tooling of the present utility model.

[0025] Figure 3 It is a schematic structural diagram of the piston rod of the present utility model.

[0026] Figure 4 It is a schematic structural diagram of the oil circuit pipeline of the present utility model.

[0027] Among them, 1 - base, 2 - handle, 3 - piston rod, 31 - first-stage piston rod, 32 - second-stage piston rod, 33 - third-stage piston rod, 41 - cavity part, 42 - sealing part, 5 - bottom plate, 6 - through hole, 7 - first oil pipe interface, 8 - second oil pipe interface, 9 - universal wheel, 10 - oil circuit channel, 101 - inner wall outlet, 11 - ejector rod, 111 - second bottom plate, 12 - connecting shaft, 121 - thrust ball bearing, 13 - rotating mechanism, 131 - connecting column, 132 - positioning bolt, 133 - fastening bolt, 14 - handle, 141 - handle ball head. Detailed implementation manners

[0028] In order to strengthen the understanding of the present utility model, the present utility model will be described in detail below in combination with embodiments and drawings. The embodiments are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0029] AsFigure 1 and Figure 2 The figures show schematic diagrams of the working state and non - working state of the outlet air valve tooling. The outlet air valve tooling includes a base 1, with universal wheels 9 provided at the bottom of the base 1 and handles 14 provided on both sides, thus facilitating its movement. The interior of the base 1 is a hollow structure, and a multi - stage piston rod 3 and a push rod 11 are arranged in sequence. Among them, the multi - stage piston rod 3 is also hollow in shape, which can be cylindrical, including an inner wall 311 and an outer wall 312, and there is a gap between the inner and outer walls. Here, for the convenience of understanding, as Figure 1 shown in the figure is a 3 - stage piston rod and a push rod 11. Each stage of the multi - stage piston rod 3 can be named the first - stage piston rod 31, the second - stage piston rod 32, and the third - stage piston rod 33 respectively. The number of piston rods is not limited, and the following description takes a three - stage piston rod as an example.

[0030] The internal spaces of the base 1 and each stage of the piston rod can be divided into a cavity part 41 and a sealing part 42. The diameter of the cavity part 41 is larger than that of the sealing part 42. The third - stage piston rod 33 is placed through the sealing part 42 in the cavity part 41 of the second - stage piston rod 32. The second - stage piston rod 32 is placed through the sealing part 42 in the cavity part 41 of the first - stage piston rod 31. The first - stage piston rod 31 is placed through the sealing part 42 in the cavity part 41 of the base 1. This results in that the diameter of the first - stage piston rod 31 is smaller than the diameter of the cavity part 41 of the base 1, the diameter of the second - stage piston rod 32 is smaller than the diameter of the first - stage piston rod 31, and so on. Therefore, from Figure 1 a view, the diameter of the piston rod gradually decreases from bottom to top, and there is a gap between every two - stage piston rods.

[0031] As Figure 3 shown in the figure is the specific structure of the piston rod. A bottom plate 5 is provided at the bottom of each stage of the piston rod, and the size and shape of the bottom plate 5 are consistent with the cavity part 41 that surrounds it. Therefore, the bottom plate 5 can block the cavity part 41. However, a through - hole 6 is provided at the central part of the bottom plate 5 to facilitate the hydraulic oil to flow into the cavity of the next - stage piston rod through the through - hole 6. A first oil pipe interface 7 is provided on the side of the base 1, and the cavity part 41 of the base 1 is communicated with the first oil pipe interface 7.

[0032] Similarly, the push rod 11 is arranged inside the third - stage piston rod 33, and a second bottom plate 111 is provided at its bottom. The size and shape of the second bottom plate 111 are consistent with the cavity part 41 of the third - stage piston rod 33 that surrounds it, and no through - hole is provided.

[0033] When the outlet valve tooling rises and there is no valve loaded, the first oil pipe interface 7 is connected to the hydraulic oil pipe, and the hydraulic oil flows into the cavity part 41 of the base 1 through the first oil pipe interface 7 and flows upward to the upper-level cavity part through the through hole 6 until it reaches the cavity part where the ejector rod 11 is located. As the hydraulic oil flows in, the pressure on the ejector rod 11 gradually increases, causing the ejector rod 11 to rise. After the ejector rod rises, the piston rod located below the ejector rod 11 rises, and so on until it reaches the desired position.

[0034] When the outlet valve tooling rises and there is a valve loaded, the flow direction of the hydraulic oil is the same as the above situation. However, due to the presence of the load, the pressure on the ejector rod and the piston rod changes, so the rising order of the ejector rod and the piston rod is different. The specific rising order depends on the size of the load.

[0035] Preferably, grooves 51 are provided on the sides of the bottom plate 5 and the second bottom plate 111, and a sealing component, which can be a Gleitring, is placed in the grooves 51.

[0036] Preferably, the sealing part 42 is composed of a sealing ring, a dust ring, a Gleitring, etc. fastened by a union nut.

[0037] A second oil pipe interface 8 is also provided on the side of the base 1. Oil passage channels 10 are provided between the inner and outer walls of each stage of the piston rod, and the oil passage channels 10 of each stage of the piston rod are connected. One end of the oil passage channel 10 is connected to the second oil pipe interface 8. At the same time, the other end outlet 101 of the oil passage channel 10 is provided on the inner wall of the third-stage piston rod 33, and the hydraulic oil can flow into the gap between the ejector rod 11 and the third-stage piston rod 33 through this outlet 101. The specific structure is as Figure 4 shown, and the oil flow direction is as Figure 4 indicated by the arrow in.

[0038] When the outlet valve tooling needs to contract, the second oil pipe interface 8 is connected to the hydraulic oil, and the hydraulic oil flows along the oil passage channel 10 and finally flows into the gap between the ejector rod 11 and the third-stage piston rod 33 through the outlet 101, thereby pressing on the bottom plate 111 of the ejector rod 11 and causing the ejector rod 11 to descend. At the same time, the hydraulic oil flows out from the first oil pipe interface 7 for pressure relief. When the ejector rod 11 contracts into the third-stage piston rod 33, the hydraulic oil at the outlet 101 of the second-stage piston rod 32 continues to flow out and flows into the gap between the second-stage piston rod and the third-stage piston rod, thereby pressurizing and relieving pressure on the bottom plate of the third-stage piston rod. Continue to operate to contract each stage of the piston rod in turn until finally Figure 2 the state.

[0039] Similarly, there are situations where the outlet valve tooling is loaded and unloaded as described above. When there is a load, the descending order will be different.

[0040] This tooling has two sets of oil circuits, aiming to make its descent faster and more stable.

[0041] A connecting shaft 12 is welded to the top of the second base plate 111, and a rotating mechanism 13 is connected to the connecting shaft 12. The rotating mechanism 13 includes a connecting column 131, and the connecting column 131 is sleeved on the connecting shaft 12 and can rotate along the connecting shaft 12. Two positioning bolts 132 are oppositely arranged on the upper surface of the connecting column 131.

[0042] A fastening bolt 133 is arranged at the upper end of the connection between the connecting shaft 12 and the connecting column 131 to fasten the connecting column 131 and the connecting shaft 12. A thrust ball bearing 121 is arranged outside the connecting shaft 12, and the connecting column 131 is sleeved on the thrust ball bearing 121. The design of the thrust ball bearing 121 makes the rotation more convenient and labor-saving.

[0043] Handles 14 are oppositely arranged at both ends of the connecting column 131, and handle ball heads 141 are arranged at the ends of the handles 14.

[0044] The specific operation steps of this outlet air valve tooling are as follows:

[0045] (1) Preparation work: First, fix the outlet air valve on the turntable of the tooling through the positioning bolts. Ensure that the air valve is firmly fixed to prevent deviation or sliding during the lifting process, and then move the tooling to the bottom of the operating equipment.

[0046] (2) Hydraulic lifting: Start the hydraulic system, and slowly lift the turntable through the hydraulic cylinder until the air valve approaches the installation hole position at the bottom of the equipment. The hydraulic system is designed to precisely control the lifting speed and height to ensure that the air valve can reach the predetermined position smoothly.

[0047] (3) Rotating and positioning: When the air valve approaches the installation hole, the operator adjusts the angle of the air valve through the rotating handle. The rotating positioning mechanism consists of an adjustable rotating shaft and a locking device, which can keep the air valve stable at different angles.

[0048] (4) Alignment and installation: Adjust the angle and height of the air valve to precisely align it with the installation hole. After completing the alignment, the hydraulic system stops lifting and locks the rotating positioning mechanism to ensure that the position of the air valve does not change during the installation process. At this time, the operator can firmly install the air valve on the equipment through bolts or other fixing methods.

[0049] (5) Removing the tooling: After the installation is completed, release the fixation between the air valve and the tooling, start the hydraulic system to lower the turntable to the initial position, and then remove the tooling.

[0050] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. An outlet air valve tooling, including a base (1), characterized in that, The interior of the base (1) is hollow and is successively provided with a multi-stage piston rod (3) and a push rod (11). The multi-stage piston rod (3) includes a first-stage piston rod (31), a second-stage piston rod (32), and a third-stage piston rod (33) with gradually decreasing inner diameters. Cavity parts (41) and sealing parts (42) are provided inside the base (1) and each stage of the piston rod. The third-stage piston rod (33) is placed in the cavity part (41) of the second-stage piston rod (32) through the sealing part (42). The second-stage piston rod (32) is placed in the cavity part (41) of the first-stage piston rod (31) through the sealing part (42). The first-stage piston rod (31) is placed in the cavity part (41) of the base (1) through the sealing part (42). A bottom plate (5) is provided at the bottom of each stage of the piston rod. The size and shape of the bottom plate (5) are consistent with the cavity part (41) surrounding it. A through hole (6) is provided in the middle of the bottom plate (5). Each stage of the piston rod can move up and down in its corresponding cavity; A first oil pipe interface (7) is provided on the side of the base (1), and the first oil pipe interface (7) communicates with the cavity part (41) of the base (1); The push rod (11) is arranged inside the innermost piston rod. A second bottom plate (111) is provided at the bottom of the push rod (11). The size and shape of the second bottom plate (111) are consistent with the cavity part (41) surrounding it. A connecting shaft (12) is welded to the top of the second bottom plate (111), and a rotating mechanism (13) is connected to the connecting shaft (12).

2. The outlet air valve tooling according to claim 1, characterized in that, A second oil pipe interface (8) is provided on the side of the base (1). Each stage of the piston rod includes an inner wall (311) and an outer wall (312), and there is a gap between the inner and outer walls. An outlet (101) is provided on the inner wall (311). An oil passage (10) is provided between the inner and outer walls of each stage of the piston rod, and the oil passages (10) of all the piston rods are communicated through the outlets (101) on the inner walls of the piston rods. One end of the oil passage (10) communicates with the second oil pipe interface (8), and the other end communicates with the inner wall outlet (101) of the last stage of the piston rod.

3. The outlet air valve tooling according to claim 1, characterized in that, Grooves (51) are provided on the sides of the bottom plate (5) and the second bottom plate (111), and sealing components are filled in the grooves (51).

4. The outlet air valve tooling according to claim 1, wherein The rotating mechanism (13) includes a connecting column (131). The connecting column (131) is sleeved on the connecting shaft (12) and can rotate along the connecting shaft (12). Two positioning bolts (132) are oppositely arranged on the upper surface of the connecting column (131).

5. The outlet air valve tooling according to claim 4, characterized in that A fastening bolt (133) is provided at the upper end of the connection between the connecting shaft (12) and the connecting column (131).

6. The outlet air valve tooling according to claim 4, characterized in that, A thrust ball bearing (121) is provided on the outside of the connecting shaft (12), and the connecting column (131) is sleeved on the thrust ball bearing (121).

7. The outlet air valve tooling according to claim 5, characterized in that, Handles (14) are oppositely arranged at both ends of the connecting column (131), and handle ball heads (141) are provided at the ends of the handles.

8. The outlet air valve tooling according to claim 1, characterized in that, Handles (2) are provided on both sides of the base (1), and universal wheels (9) are provided at the bottom end.

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