A laser repair and positioning fixture for the sealing surface of a safety valve seat

Abstract

This utility model discloses a laser repair positioning fixture for the sealing surface of a safety valve seat, relating to the field of fixture technology. An electric telescopic rod is installed at the middle of the lower surface of the positioning platform. From left to right, a first connecting plate and a second connecting plate are respectively arranged on the upper surface of the positioning platform. A first positioning sleeve is provided on one side of the first connecting plate, and a second positioning sleeve is provided on one side of the second connecting plate. Guide plates are provided on the outside of both the first and second positioning sleeves. A turntable is passed through the outer sides of both the first and second connecting plates, and a threaded rod is connected to one end of the turntable. Rotation of the turntable causes the threaded rod to rotate, reducing the distance between the first and second positioning sleeves. This allows for the positioning of the safety valve seat placed on the positioning platform, ensuring its stability and facilitating laser repair of its sealing surface. It is highly practical.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a laser repair and positioning fixture for the sealing surface of a safety valve seat. Background Technology

[0002] A safety valve is a device used to prevent excessive pressure in a system or container. When the pressure exceeds a set value, the safety valve will automatically open to release the excess pressure. Safety valves are commonly used to protect equipment such as boilers, pressure vessels, and pipelines. The valve seat sealing surface is the part of the safety valve that contacts the valve disc. It is the key to the sealing function of the safety valve. However, with the increase of usage time, the valve seat sealing surface may be damaged due to friction, corrosion, and other factors, resulting in a decrease in sealing performance. Therefore, it is necessary to use a positioning fixture to clamp the valve seat sealing surface for laser repair.

[0003] However, in existing methods of laser repair of safety valve seat sealing surfaces, the valve is often placed on a positioning table. During repair, this table is prone to displacement due to external vibrations, resulting in poor repair quality and low practicality. Therefore, those skilled in the art have provided a laser repair positioning fixture for safety valve seat sealing surfaces to address the problems mentioned in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a laser repair and positioning fixture for the sealing surface of a safety valve seat, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser repair positioning fixture for the sealing surface of a safety valve seat, comprising: a positioning platform and two sets of support plates disposed on the lower surface of the positioning platform; a connecting rod is also provided through the lower surface of the positioning platform, and a lifting plate is connected to the lower end of the connecting rod; an electric telescopic rod is also installed at the middle position of the lower surface of the positioning platform; a first connecting plate and a second connecting plate are respectively disposed on the upper surface of the positioning platform from left to right; a first positioning sleeve is disposed on one side of the first connecting plate, and a second positioning sleeve is disposed on one side of the second connecting plate; guide plates are disposed on the outside of both the first and second positioning sleeves; a turntable is provided through the outside of both the first and second connecting plates, and a threaded rod is connected to one end of the turntable.

[0006] As a further technical solution of this utility model, guide rods are symmetrically arranged between the first connecting plate and the second connecting plate, and the guide plates are slidably installed on the outside of the guide rods.

[0007] As a further technical solution of this utility model, the turntable is provided with external threads, and the threaded rod is threadedly connected to the first connecting plate.

[0008] As a further technical solution of this utility model, bearings are installed on the outer sides of the first positioning sleeve and the second positioning sleeve, and one end of the threaded rod is embedded in the bearing.

[0009] As a further technical solution of this utility model, four connecting rods are symmetrically arranged on the upper surface of the lifting plate, and the upper end of the connecting rod is connected to the lower surface of the first connecting plate.

[0010] As a further technical solution of this utility model, the fixed end of the electric telescopic rod is installed on the lower surface of the positioning platform, and the telescopic end of the electric telescopic rod is connected to the middle position of the upper surface of the lifting plate.

[0011] This utility model provides a laser repair positioning fixture for the sealing surface of a safety valve seat, which has the following advantages compared with the prior art:

[0012] 1. This design provides a laser repair positioning fixture for the sealing surface of a safety valve seat. The rotation of the turntable causes the threaded rod to rotate, and the distance between the first positioning sleeve and the second positioning sleeve decreases during rotation. This allows the safety valve seat placed on the positioning platform to be positioned, ensuring its stability and facilitating laser repair of its sealing surface. It is highly practical.

[0013] 2. This design provides a laser repair positioning fixture for the sealing surface of a safety valve seat. By operating the electric telescopic rod on the lower surface of the positioning platform, the lifting plate can be raised and lowered below the positioning platform. The connecting rod can also raise and lower the first and second connecting plates to increase their height, allowing the first and second positioning sleeves to position the safety valve seat at different heights, ensuring its stability and practicality. Attached Figure Description

[0014] Figure 1 A schematic diagram of a laser repair and positioning fixture for the sealing surface of a safety valve seat;

[0015] Figure 2 This is a schematic diagram of the lifting plate in a laser repair positioning fixture for the sealing surface of a safety valve seat;

[0016] Figure 3 This is a schematic diagram of the structure of the first positioning sleeve in a laser repair positioning fixture for the sealing surface of a safety valve seat.

[0017] In the diagram: 1. Positioning platform; 11. Support plate; 2. Lifting plate; 21. Connecting rod; 22. Electric telescopic rod; 3. First connecting plate; 4. Second connecting plate; 5. First positioning sleeve; 6. Second positioning sleeve; 7. Guide plate; 8. Guide rod; 9. Turntable; 91. Threaded rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0019] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Please see Figure 1-3This utility model provides a laser repair positioning fixture for the sealing surface of a safety valve seat, comprising: a positioning platform 1 and two sets of support plates 11 disposed on the lower surface of the positioning platform 1. A connecting rod 21 is also provided through the lower surface of the positioning platform 1, and a lifting plate 2 is connected to the lower end of the connecting rod 21. An electric telescopic rod 22 is also installed in the middle of the lower surface of the positioning platform 1. A first connecting plate 3 and a second connecting plate 4 are respectively disposed on the upper surface of the positioning platform 1 from left to right. A first positioning sleeve 5 is disposed on one side of the first connecting plate 3, and a second positioning sleeve 6 is disposed on one side of the second connecting plate 4. Guide plates 7 are disposed on the outside of both the first positioning sleeve 5 and the second positioning sleeve 6. A turntable 9 is provided through the outside of both the first connecting plate 3 and the second connecting plate 4, and a threaded rod 91 is connected to one end of the turntable 9. This arrangement utilizes the lifting plate 2 to lift and lower below the positioning platform 1, thereby adjusting the height of the first connecting plate 3 and the second connecting plate 4, that is, adjusting the height of the first positioning sleeve 5 and the second positioning sleeve 6 to meet the positioning of the safety valve seat at different heights.

[0024] like Figure 3 As shown, guide rods 8 are symmetrically arranged between the first connecting plate 3 and the second connecting plate 4. The guide plate 7 is slidably installed on the outside of the guide rod 8. This arrangement uses the guide rod 8 to guide the first positioning sleeve 5 and the second positioning sleeve 6 when they move, ensuring the stability of their movement.

[0025] like Figure 3 As shown, the turntable 9 has external threads on its exterior, and the threaded rod 91 is threadedly connected to the first connecting plate 3. Bearings are installed on the outer sides of the first positioning sleeve 5 and the second positioning sleeve 6. One end of the turntable 9 is embedded in the bearing. This arrangement utilizes the rotation of the turntable 9 to cause the threaded rod 91 to rotate. Since the threaded rod 91 is threadedly connected to the first connecting plate 3, the distance between the first positioning sleeve 5 and the second positioning sleeve 6 can be brought closer to achieve the purpose of positioning and clamping the safety valve seat.

[0026] like Figure 2 As shown, four connecting rods 21 are symmetrically arranged on the upper surface of the lifting plate 2, and the upper end of the connecting rod 21 is connected to the lower surface of the first connecting plate 3. The fixed end of the electric telescopic rod 22 is installed on the lower surface of the positioning platform 1, and the telescopic end of the electric telescopic rod 22 is connected to the middle position of the upper surface of the lifting plate 2. This arrangement allows the lifting plate 2 to rise and fall below the positioning platform 1 by the operation of the electric telescopic rod 22. During the rise and fall, the height of the first connecting plate 3 and the second connecting plate 4 connected by the connecting rod 21 can be adjusted, thereby meeting the needs of use at different heights.

[0027] The working principle of this utility model is as follows: When using the laser repair positioning fixture for the sealing surface of a safety valve seat, the safety valve seat requiring laser repair is first placed on the positioning platform 1, with its sealing surface below the laser repair equipment. After the safety valve seat is placed, the operation of the electric telescopic rod 22 causes the lifting plate 2 to rise and fall below the positioning platform 1. During this rising and falling, the height of the first connecting plate 3 and the second connecting plate 4 connected by the connecting rod 21 is adjusted. After adjustment, rotating the turntable 9 causes the threaded rod 91 to rotate, reducing the distance between the first positioning sleeve 5 and the second positioning sleeve 6. This positions the safety valve seat placed on the positioning platform 1, ensuring its stability and facilitating laser repair of its sealing surface. It is highly practical.

[0028] All electrical devices used in this utility model are existing and known, and are connected to an external main controller and power supply. The main controller can be a conventional and known device such as a computer, and can be purchased and used directly on the market. Its structure, circuit and control principle are all existing and known technologies. Therefore, the structure, circuit and control principle of the device are not described in detail here. The contents not described in detail in this description are existing technologies known to those skilled in the art.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A laser repair positioning fixture for a safety valve seat sealing surface, characterized by, include: The positioning platform (1) and two sets of support plates (11) are provided on the lower surface of the positioning platform (1). A connecting rod (21) is also provided through the lower surface of the positioning platform (1). A lifting plate (2) is connected to the lower end of the connecting rod (21). An electric telescopic rod (22) is also installed in the middle of the lower surface of the positioning platform (1). A first connecting plate (3) and a second connecting plate (4) are provided from left to right on the upper surface of the positioning platform (1). A first positioning sleeve (5) is provided on one side of the first connecting plate (3). A second positioning sleeve (6) is provided on one side of the second connecting plate (4). A guide plate (7) is provided on the outside of both the first positioning sleeve (5) and the second positioning sleeve (6). A turntable (9) is provided through the outside of both the first connecting plate (3) and the second connecting plate (4). A threaded rod (91) is connected to one end of the turntable (9).

2. A laser repair positioning fixture for a safety valve seat sealing surface according to claim 1, wherein, Guide rods (8) are symmetrically arranged between the first connecting plate (3) and the second connecting plate (4), and the guide plate (7) is slidably installed on the outside of the guide rods (8).

3. The laser repair positioning fixture for a safety valve seat sealing surface of claim 1 wherein, The turntable (9) is provided with external threads, and the threaded rod (91) is threadedly connected to the first connecting plate (3).

4. The laser repair positioning fixture for a safety valve seat sealing surface of claim 1 wherein, Bearings are installed on the outer sides of the first positioning sleeve (5) and the second positioning sleeve (6), and one end of the threaded rod (91) is embedded inside the bearing.

5. The laser repair and positioning fixture for the sealing surface of a safety valve seat according to claim 1, characterized in that, Four connecting rods (21) are symmetrically arranged on the upper surface of the lifting plate (2), and the upper end of the connecting rods (21) is connected to the lower surface of the first connecting plate (3).

6. The laser repair positioning fixture for the sealing surface of a safety valve seat according to claim 1, characterized in that, The fixed end of the electric telescopic rod (22) is installed on the lower surface of the positioning platform (1), and the telescopic end of the electric telescopic rod (22) is connected to the middle position of the upper surface of the lifting plate (2).

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