Valve mounting structure with positioning function

Abstract

The utility model relates to valve technical field especially is a kind of valve mounting structure with positioning function, including valve main body, flange mechanism is arranged on the valve main body and is used for installing positioning, flange mechanism includes: positioning assembly is fixed in the flange seat of the import and export end of valve main body, annular plate is rotatably installed in the inside of flange seat, the extension ear is fixed on the outer wall upper end of annular plate, the inside of annular plate is opened and is equipped with several arc grooves of circumferential distribution, the slider is slidably installed in the inside of arc groove, the flange plate is fixed in the outside of flange seat, the inside of flange plate is opened and is equipped with several circumferential distribution sliding slot, the sliding strip is slidably installed in the inside of sliding slot, and the sliding strip inner end is rotatably connected with slider, and the sliding strip outer end is fixed with bolt head;By automatic control bolt head radial adjustment, it can adapt to the flange connecting surface of different specifications within certain range, realizes fast accurate alignment with pipeline flange, improves installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve installation structure with positioning function. Background Technology

[0002] Valves are mechanical devices that control the flow rate, flow direction, pressure, temperature, etc. of flowing fluid media, and are basic components of pipeline systems.

[0003] According to CN219472845U, a valve with a positioning structure is disclosed. This technology discloses a valve with a positioning structure, including a valve body, a connecting pipe symmetrically fixedly connected to the side of the valve body, a flange fixedly connected to the side of the connecting pipe, a rotating shaft rotatably connected to the top of the valve body, and a wrench A fixedly connected to the top of the rotating shaft. It has the technical effect of "being able to insert the valve's connecting pipe between the pressure rod and the support rod, and then rotate the wrench B to make the threaded rod move inside the connecting rod, thereby pushing the push block to squeeze the bottom of the support rod, and then pushing the connecting rod and the pressure rod in the opposite direction to press the connecting pipe tightly, thereby achieving the positioning of the valve, reducing the impact of vibration on the conveying equipment on the valve, and avoiding the situation where the connection between the valve and the water pipe becomes loose after the valve is vibrated".

[0004] Because of manufacturing tolerances and installation deviations in the bolt holes of pipe flanges and valve flanges, it is particularly inconvenient in scenarios requiring frequent disassembly and assembly. For example, during the annual overhaul of a petrochemical plant, operators need to repeatedly adjust the flange angles of hundreds of high-temperature and high-pressure valves, which is time-consuming and labor-intensive; in the maintenance of cryogenic valves at an LNG receiving station, workers perform flange alignment in an extreme environment of -160°C, which is not only inefficient but also poses safety hazards. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a valve installation structure with positioning function. By automatically controlling the radial adjustment of the bolt head, it can adapt to flange connection surfaces of different specifications within a certain range, achieving rapid and accurate alignment with pipeline flanges and improving installation efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve mounting structure with a positioning function, comprising a valve body, wherein a flange mechanism is provided on the valve body for mounting and positioning, the flange mechanism comprising:

[0007] The positioning component is fixed to the flange seat at the inlet and outlet ends of the valve body. An annular plate is rotatably installed inside the flange seat. An extension lug is fixed to the upper end of the outer wall of the annular plate. Several arc-shaped grooves are circumferentially distributed inside the annular plate. A slider is slidably installed inside the arc-shaped grooves. A flange plate is fixed to the outer end of the flange seat. Several circumferentially distributed sliding grooves are opened inside the flange plate. A slide bar is slidably installed inside the sliding grooves. The inner end of the slide bar is rotatably connected to the slider. A bolt head is fixed to the outer end of the slide bar.

[0008] A drive component is mounted on the positioning component and is used to drive the rotation of the annular plate.

[0009] Preferably, the drive assembly includes an extension frame fixed to the upper end of the outer wall of the flange seat, a cylinder is pivotally connected to the extension frame, and the output end of the cylinder is pivotally connected to the extension lug.

[0010] Preferably, the positioning assembly further includes four limiting blocks fixed in a circumferential distribution inside the flange seat and used for limiting and guiding the annular plate.

[0011] Preferably, the positioning assembly further includes a sealing gasket fixed to the center of the outer surface of the flange plate.

[0012] Preferably, the positioning component further includes a plurality of mounting holes circumferentially distributed on the inner outer edge of the flange seat, and a plurality of through holes circumferentially distributed on the inner outer edge of the flange plate corresponding to the mounting holes.

[0013] Preferably, the positioning component further includes a plurality of limiting holes distributed circumferentially inside the flange plate, and the bolt head passes through the limiting holes.

[0014] Beneficial effects

[0015] This utility model provides a valve mounting structure with positioning function. Compared with the prior art, it has the following advantages:

[0016] 1. The cylinder output drives the extension frame to rotate the annular plate. When the annular plate rotates, it drives the slider to slide along the inside of the arc groove. At the same time, the slider drives the slide bar to slide along the inside of the slide groove, so that the slide bar drives the bolt head to achieve radial position adjustment, which can adapt to flange connection surfaces of different specifications within a certain range and achieve quick and accurate alignment with the pipe flange. This not only significantly improves the installation efficiency, but also avoids the common problem of bolt hole alignment difficulties in traditional installation methods.

[0017] 2. The design, combining an elastic sealing gasket with dual fixing holes, achieves excellent sealing performance and connection strength. The uniform deformation characteristics of the sealing gasket effectively compensate for the microscopic unevenness of the flange contact surface, ensuring good sealing performance under various operating conditions. Simultaneously, the modular flange connection method ensures ease of installation while providing sufficient structural rigidity through bolt fixing. This design is particularly suitable for industrial piping systems subject to vibration or requiring frequent maintenance, ensuring both operational convenience and long-term safety and reliability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the flange seat in this utility model;

[0020] Figure 3 This is a schematic diagram of the outer end of the flange plate in this utility model;

[0021] Figure 4 This is a schematic diagram of the inner end of the flange plate in this utility model.

[0022] In the diagram: 1. Valve body; 2. Flange mechanism; 21. Positioning assembly; 211. Flange seat; 212. Annular plate; 213. Extension lug; 214. Arc groove; 215. Slider; 216. Flange plate; 217. Slide groove; 218. Slide bar; 219. Bolt head; 2110. Limiting block; 2111. Sealing gasket; 2112. Limiting hole; 2113. Mounting hole; 22. Drive assembly; 221. Extension frame; 222. Cylinder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a valve installation structure with positioning function, including a valve body 1, a flange mechanism 2 provided on the valve body 1 for installation and positioning, the flange mechanism 2 including:

[0025] The positioning component 21 is fixed to the flange seat 211 at the inlet and outlet ends of the valve body 1. An annular plate 212 is rotatably installed inside the flange seat 211. An extension lug 213 is fixed to the upper end of the outer wall of the annular plate 212. Several circumferentially distributed arc grooves 214 are opened inside the annular plate 212. A slider 215 is slidably installed inside the arc grooves 214. A flange plate 216 is fixed to the outer end of the flange seat 211. Several circumferentially distributed sliding grooves 217 are opened inside the flange plate 216. A slide bar 218 is slidably installed inside the sliding grooves 217. The inner end of the slide bar 218 is rotatably connected to the slider 215. A bolt head 219 is fixed to the outer end of the slide bar 218.

[0026] The drive component 22 is mounted on the positioning component 21 and is used to drive the annular plate 212 to rotate.

[0027] In this embodiment, when the annular plate 212 rotates, it drives the slider 215 to slide along the inside of the arc groove 214 through the arc groove 214. At the same time, the slider 215 drives the slide bar 218 to slide along the inside of the slide groove 217, so that the slide bar 218 drives the bolt head 219 to achieve radial position adjustment, so that it can adapt to flange connection surfaces of different specifications within a certain range, and achieve quick and accurate alignment with the pipe flange. This not only significantly improves the installation efficiency, but also avoids the common problem of bolt hole alignment difficulties in traditional installation methods.

[0028] Specifically, the drive assembly 22 includes an extension frame 221 fixed to the upper end of the outer wall of the flange seat 211, a cylinder 222 pivotally connected to the extension frame 221, and the output end of the cylinder 222 pivotally connected to the extension lug 213.

[0029] In this embodiment, the extension frame 221 is driven by the output end of the cylinder 222 to rotate the annular plate 212.

[0030] Specifically, the positioning component 21 also includes four limiting blocks 2110 that are fixed in a circumferential distribution inside the flange seat 211 and used to limit and guide the annular plate 212.

[0031] In this embodiment, the limiting block 2110 is made of wear-resistant alloy material, which provides a stable sliding track for the rotational movement of the annular plate 212, ensuring that the drive assembly 22 drives the annular plate 212 to rotate smoothly and avoiding shaking or jamming caused by gaps. At the same time, the symmetrical arrangement of the four limiting blocks 2110 forms a uniform force support, effectively distributing the radial load borne by the annular plate 212 and preventing wear or deformation caused by local stress concentration.

[0032] Specifically, the positioning component 21 also includes a sealing gasket 2111 fixed to the center of the outer surface of the flange plate 216.

[0033] In this embodiment, the sealing gasket 2111 undergoes uniform elastic deformation when the flange plate 216 is pressed against the pipe flange, effectively filling the microscopic unevenness of the contact surface and forming a sealing barrier.

[0034] Specifically, the positioning component 21 also includes a number of mounting holes 2113 distributed circumferentially on the inner outer edge of the flange seat 211, and a number of through holes distributed circumferentially on the inner outer edge of the flange plate 216 corresponding to the mounting holes 2113.

[0035] In this embodiment, the flange plate 216 can be fixed to the flange seat 211 with bolts.

[0036] Specifically, the positioning component 21 also includes a number of limiting holes 2112 distributed circumferentially inside the flange plate 216, and the bolt head 219 passes through the limiting holes 2112.

[0037] In this embodiment, the limiting hole 2112 not only provides the bolt head 219 with the necessary room for movement, but also avoids positioning deviation caused by excessive gap.

[0038] The working principle and usage process of this utility model are as follows: First, the output end of the cylinder 222 drives the extension frame 221 to rotate the annular plate 212. When the annular plate 212 rotates, the slider 215 slides along the inside of the arc groove 214 through the arc groove 214. At the same time, the slider 215 drives the slide bar 218 to slide along the inside of the slide groove 217, so that the slide bar 218 drives the bolt head 219 to achieve radial position adjustment, so that it can adapt to flange connection surfaces of different specifications within a certain range, and achieve quick and accurate alignment with the pipe flange. This not only significantly improves the installation efficiency, but also avoids the common problem of bolt hole alignment difficulties in traditional installation methods.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] 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 valve mounting structure having a positioning function, comprising a valve main body (1), characterized by: The valve body (1) is provided with a flange mechanism (2) for installation and positioning. The flange mechanism (2) includes: The positioning component (21) is fixed to the flange seat (211) at the inlet and outlet ends of the valve body (1). An annular plate (212) is rotatably installed inside the flange seat (211). An extension ear (213) is fixed to the upper end of the outer wall of the annular plate (212). Several circumferentially distributed arc grooves (214) are opened inside the annular plate (212). A slider (215) is slidably installed inside the arc grooves (214). A flange plate (216) is fixed to the outer end of the flange seat (211). Several circumferentially distributed sliding grooves (217) are opened inside the flange plate (216). A slide bar (218) is slidably installed inside the sliding grooves (217). The inner end of the slide bar (218) is rotatably connected to the slider (215). A bolt head (219) is fixed to the outer end of the slide bar (218). A drive assembly (22) is disposed on the positioning assembly (21) and is used to drive the annular plate (212) to rotate.

2. The valve mounting structure with a positioning function according to claim 1, characterized in that: The drive assembly (22) includes an extension frame (221) fixed to the upper end of the outer wall of the flange seat (211), a cylinder (222) is pivotally connected to the extension frame (221), and the output end of the cylinder (222) is pivotally connected to the extension lug (213).

3. The valve mounting structure having a positioning function according to claim 1, characterized in that: The positioning component (21) also includes four limiting blocks (2110) fixed in a circumferential distribution inside the flange seat (211) and used to limit and guide the annular plate (212).

4. The valve mounting structure with positioning function according to claim 1, characterized in that: The positioning assembly (21) also includes a sealing gasket (2111) fixed to the center of the outer surface of the flange plate (216).

5. A valve mounting structure with positioning function according to claim 1, characterized in that: The positioning component (21) also includes a number of mounting holes (2113) circumferentially distributed on the inner outer edge of the flange seat (211), and a number of through holes circumferentially distributed on the inner outer edge of the flange plate (216) corresponding to the mounting holes (2113).

6. A valve mounting structure with positioning function according to claim 1, characterized in that: The positioning component (21) also includes a number of limiting holes (2112) distributed circumferentially inside the flange plate (216), and the bolt head (219) passes through the limiting holes (2112).

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