Large industrial freezing stop valve

Abstract

The invention discloses a large industrial freezing stop valve, which relates to the technical field of stop valves, and comprises a pipeline body, the top of the pipeline body is fixedly connected with a first flange, the top of the pipeline body is provided with a valve body, the bottom of the valve body is fixedly connected with a second flange, the top of the second flange is symmetrically in threaded connection with threaded columns, and the tops of the threaded columns are fixedly connected with knobs. A cross-shaped groove is formed in the top of the knob, assembling rings are symmetrically arranged on the outer side of the valve body in a sliding mode, assembling blocks are fixedly connected to one sides of the assembling rings, fixing assemblies are symmetrically installed in the assembling blocks, cross-shaped blocks are symmetrically and fixedly connected to the bottoms of the assembling rings, and the cross-shaped blocks are connected with the cross-shaped groove in an inserted mode. By adopting the structure, the bolt can be effectively prevented from loosening caused by factors such as vibration and temperature change in the long-term use process, so that the connection between the stop valve and the pipeline is always stable and reliable, and the stable connection is beneficial to keeping the sealing performance between the stop valve and the pipeline, reducing the leakage risk and improving the overall performance of a system.

Description

Technical Field

[0001] The present invention belongs to the technical field of globe valves, and particularly relates to a large industrial refrigeration globe valve. Background Art

[0002] A large industrial refrigeration globe valve is a cut-off valve specifically designed for large industrial refrigeration systems. It has excellent performance and reliability in low-temperature environments. A large industrial refrigeration globe valve usually consists of components such as a valve body, a valve cover, a valve stem, a valve disc, a sealing surface, a stuffing box, and an operating mechanism. The valve body is the main part of the valve and is made of high-strength and low-temperature-resistant materials to ensure the stability and durability of the valve in low-temperature environments. The valve cover is fixed to the valve body by bolts or welding, etc., and plays a role in sealing and protecting the internal components. The valve stem connects the operating mechanism and the valve disc. By rotating the operating mechanism, the valve stem drives the valve disc to move up and down along the axis of the valve seat to achieve the opening and closing of the valve.

[0003] Publication number "CN220337600U", a stainless steel straight-through globe valve device, relates to the technical field of stainless steel straight-through globe valves. The following solution is now proposed, including a valve body and a clamping mechanism arranged above the valve body. The clamping mechanism includes a working component and a fixing component. By setting a U-shaped column, a screw, a first nut, a rotating column, a second nut, and a fixing block, two groups of U-shaped columns are connected by the screw and the first nut, and the rotating column fixes the U-shaped column through the second nut to prevent the U-shaped column from sliding up and down, preventing accidental contact with the rotating handle from driving the valve stem to rotate and being unable to accurately control the opening and closing of the valve plate, playing a role in preventing leakage. By setting a groove on the valve body that matches the filter screen, installing the filter screen on both sides of the valve body, and using a first fixing column to reinforce the valve body and the filter screen, it is beneficial to filter impurities on both sides of the globe valve, control the purity of the medium in the globe valve, facilitate the installation and disassembly of the filter screen, and is convenient for replacing the filter screen in the future.

[0004] In the above invention, it is beneficial to filter impurities on both sides of the globe valve, control the purity of the medium in the globe valve, facilitate the installation and disassembly of the filter screen, and is convenient for replacing the filter screen in the future. However, during long-term use, the second fixing column will gradually loosen due to factors such as vibration, pressure change, or temperature change. The loosening will cause the connection between the globe valve and the pipeline to be unstable, thereby affecting the sealing performance and normal operation of the valve, reducing the reliability and service life of the globe valve, and even causing safety problems such as leakage. Summary of the Invention

[0005] In view of the problems mentioned in the background art, the purpose of the present invention is to provide a large industrial refrigeration globe valve to solve the problem that during long-term use, the second fixing column will gradually loosen due to factors such as vibration, pressure change or temperature change. The loosening will cause the connection between the globe valve and the pipeline to be unstable, thereby affecting the sealing performance and normal operation of the valve, reducing the reliability and service life of the globe valve, and even causing safety problems such as leakage.

[0006] The above technical object of the present invention is achieved through the following technical solutions:

[0007] A large industrial refrigeration globe valve includes a pipeline body. A first flange is fixedly connected to the top of the pipeline body. A valve body is provided on the top of the pipeline body. A second flange is fixedly connected to the bottom of the valve body. Threaded holes are symmetrically opened at the top of the first flange. Threaded columns are symmetrically threadedly connected to the top of the second flange. A knob is fixedly connected to the top of the threaded column. A cross slot is opened at the top of the knob. A valve stem is installed on the top of the valve body. Assembly rings are symmetrically and slidably provided on the outside of the valve body. An assembly block is fixedly connected to one side of the assembly ring. Fixing components are symmetrically installed inside the assembly block. Connecting blocks are symmetrically fixedly connected to one end of the assembly ring. Connecting components are symmetrically installed on both sides of the connecting block. Cross blocks are symmetrically fixedly connected to the bottom of the assembly ring. The cross blocks are inserted into the cross slots, which can effectively prevent the bolts from loosening due to factors such as vibration and temperature change during long-term use, thereby ensuring that the connection between the globe valve and the pipeline is always stable and reliable. The stable connection helps to maintain the sealing performance between the globe valve and the pipeline, reduce the leakage risk, and improve the overall performance of the system.

[0008] As a preferred technical solution, the fixing component includes a cavity, a first return spring, a moving plate, a pressing block and a clamping block. Cavities are symmetrically opened inside the assembly block. A first return spring is symmetrically fixedly connected to one side inside the cavity. The other end of the first return spring is fixedly connected to the moving plate. The moving plate is slidably connected to the inside of the cavity. A pressing block and a clamping block are respectively fixedly connected to the side of the moving plate away from the first return spring. The other sides of the pressing block and the clamping block both extend out of the side end of the assembly block. Assembly grooves are symmetrically opened on the outside of the valve body. The assembly grooves are slidably connected to the assembly block. Card slots are symmetrically opened on both sides inside the assembly grooves. The card slots are clamped with the clamping blocks, which can automatically adjust and compensate for the small displacement generated between the pipeline and the globe valve due to factors such as temperature change and medium pressure fluctuation during long-term use, ensuring that the bolts are always in the correct tightened state, thereby maintaining the stability and sealing performance of the connection.

[0009] As a preferred technical solution, the connecting component includes a built-in hole, a second return spring, and a fixing post. Built-in holes are provided on both sides of the connecting block. The bottom of the built-in hole is fixedly connected to the second return spring, and the other end of the second return spring is fixedly connected to the fixing post. The fixing post is slidably connected to the inside of the built-in hole. The end of the fixing post away from the second return spring extends out of the side end of the connecting block and is set to be arc-shaped. Connecting grooves are symmetrically provided on one side of the assembly ring. The connecting grooves are inserted into the connecting block. Fixing holes are provided on both sides inside the connecting grooves. The fixing post is snap-connected to the fixing holes, which can make the installation process simpler and more efficient, without complex adjustment and calibration processes, and improve work efficiency.

[0010] In summary, the present invention mainly has the following beneficial effects:

[0011] In the present invention, the valve body and the pipeline body are combined, the first flange and the second flange are fitted, the knob is rotated to thread the threaded post into the threaded hole, the pressing block is pressed, the moving plate drives the clamping block to move, the clamping block retracts into the cavity, the assembly block is slid into the assembly groove, the cross block at the bottom of the assembly ring is inserted into the cross groove on the knob, the pressing block is released, the moving plate rebounds and drives the clamping block to pop out, and the clamping block is snap-connected to the clamping groove to complete the limit of the threaded post, which can effectively prevent the bolt from loosening due to factors such as vibration and temperature change during long-term use, so as to ensure that the connection between the globe valve and the pipeline is always stable and reliable. The stable connection helps to maintain the sealing between the globe valve and the pipeline, reduce the leakage risk, and improve the overall performance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 is an exploded three-dimensional structural diagram of the present invention;

[0014] Figure 3 is the Figure 2 A-part enlarged view of the present invention;

[0015] Figure 4 is a cross-sectional three-dimensional structural diagram of the assembly block of the present invention;

[0016] Figure 5 is a cross-sectional three-dimensional structural diagram of the connecting component of the present invention.

[0017] Reference numerals: 1, pipe body; 2, valve body; 3, first flange; 4, second flange; 5, valve stem; 6, threaded hole; 7, threaded post; 8, knob; 9, assembly ring; 10, cross block; 11, cross groove; 12, assembly block; 13, assembly groove; 14, fixing component; 141, cavity; 142, first return spring; 143, moving plate; 144, pressing block; 145, clamping block; 15, clamping groove; 16, connecting block; 17, connecting groove; 18, connecting component; 181, built-in hole; 182, second return spring; 183, fixing post; 19, fixing hole. Detailed implementation

[0018] Embodiment

[0019] Reference Figures 1 to 5 In this embodiment, a large industrial refrigeration stop valve includes a pipe body 1. A first flange 3 is fixedly connected to the top of the pipe body 1. A valve body 2 is provided at the top of the pipe body 1. A second flange 4 is fixedly connected to the bottom of the valve body 2. Threaded holes 6 are symmetrically formed at the top of the first flange 3. Threaded posts 7 are symmetrically threadedly connected to the top of the second flange 4. A knob 8 is fixedly connected to the top of the threaded post 7. A cross groove 11 is formed at the top of the knob 8. A valve stem 5 is installed at the top of the valve body 2. Assembly rings 9 are symmetrically slidably provided on the outside of the valve body 2. An assembly block 12 is fixedly connected to one side of the assembly ring 9. Fixing components 14 are symmetrically installed inside the assembly block 12. Connecting blocks 16 are symmetrically fixedly connected to one end of the assembly ring 9. Connecting components 18 are symmetrically installed on both sides of the connecting block 16. Cross blocks 10 are symmetrically fixedly connected to the bottom of the assembly ring 9. The cross blocks 10 are inserted into the cross grooves 11 on the knob 8. The valve body 2 and the pipe body 1 are combined, so that the first flange 3 and the second flange 4 are fitted. The knob 8 is rotated to thread the threaded post 7 into the threaded hole 6. The assembly block 12 is slid into the assembly groove 13, and the cross block 10 at the bottom of the assembly ring 9 is inserted into the cross groove 11 on the knob 8. The position of the fixing ring is fixed by the fixing component 14 to complete the limit of the threaded post 7.

[0020] Reference Figure 4, the fixing component 14 includes a cavity 141, a first return spring 142, a moving plate 143, a pressing block 144 and a clamping block 145. Cavities 141 are symmetrically arranged inside the assembly block 12. On one side inside the cavity 141, the first return springs 142 are symmetrically and fixedly connected. The other ends of the first return springs 142 are fixedly connected to the moving plate 143. The moving plate 143 is slidably connected to the inside of the cavity 141. On the side of the moving plate 143 away from the first return spring 142, the pressing block 144 and the clamping block 145 are respectively fixedly connected. The other sides of the pressing block 144 and the clamping block 145 extend out of the side end of the assembly block 12. On the outer side of the valve body 2, assembly grooves 13 are symmetrically arranged. The assembly grooves 13 are slidably connected to the assembly block 12. On both sides inside the assembly grooves 13, clamping grooves 15 are symmetrically arranged. The clamping grooves 15 are clamped with the clamping block 145. Press the pressing block 144 to drive the clamping block 145 to move by the moving plate 143. The moving plate 143 presses against the first return spring 142, and the first return spring 142 is compressed. At the same time, the clamping block 145 retracts into the cavity 141. Slide the assembly block 12 into the assembly groove 13, so that the cross block 10 at the bottom of the assembly ring 9 is inserted into the cross groove 11 on the knob 8. At the same time, when the clamping block 145 moves to the clamping groove 15, release the pressing block 144. The first return spring 142 resets, and the moving plate 143 rebounds to drive the clamping block 145 to pop out. The clamping block 145 is clamped with the clamping groove 15, completing the position fixation of the assembly block 12 and the assembly ring 9.

[0021] Reference Figure 5 , the connecting component 18 includes an internal hole 181, a second return spring 182 and a fixing column 183. Internal holes 181 are arranged on both sides of the connecting block 16. At the bottom of the internal hole 181, the second return spring 182 is fixedly connected. The other end of the second return spring 182 is fixedly connected to the fixing column 183. The fixing column 183 is slidably connected to the inside of the internal hole 181. The end of the fixing column 183 away from the second return spring 182 extends out of the side end of the connecting block 16 and is set to be arc-shaped. On one side of the assembly ring 9, connecting grooves 17 are symmetrically arranged. The connecting grooves 17 are plugged with the connecting block 16. On both sides inside the connecting grooves 17, fixing holes 19 are arranged. The fixing column 183 is clamped with the fixing hole 19. Combine the two sets of assembly rings 9, so that the connecting block 16 is inserted into the connecting groove 17. During the insertion process, the extrusion force presses against the arc-shaped end of the fixing column 183, causing the fixing column 183 to slide inside the internal hole 181. The fixing column 183 presses against the second return spring 182, and the second return spring 182 is compressed. At the same time, the fixing column 183 retracts into the internal hole 181. When the fixing column 183 moves to the fixing hole 19, the second return spring 182 resets, and the fixing column 183 pops out to be clamped with the fixing hole 19, completing the assembly of the assembly ring 9.

[0022] Principle of use and advantages: First, combine the valve body 2 with the pipeline body 1 to make the first flange 3 fit with the second flange 4. Rotate the knob 8 to thread the threaded column 7 into the threaded hole 6. Press the pressing block 144 to drive the moving plate 143 to move the clamping block 145. The moving plate 143 presses against the first return spring 142, and the first return spring 142 is compressed. At the same time, the clamping block 145 retracts into the cavity 141. Slide the assembly block 12 into the assembly groove 13. Then combine the two assembly rings 9 to insert the connecting block 16 into the connecting groove 17. During the insertion process, the extrusion force presses on the arc end of the fixed column 183, causing the fixed column 183 to slide inside the built-in hole 181. The fixed column 183 presses against the second return spring 182, and the second return spring 182 is compressed. At the same time, the fixed column 183 retracts into the built-in hole 181. When the fixed column 183 moves to the fixing hole 19, the second return spring 182 resets, and the fixed column 183 pops out and engages with the fixing hole 19 to complete the assembly of the assembly ring 9. At the same time, the cross block 10 at the bottom of the assembly ring 9 is inserted into the cross groove 11 on the knob 8. At the same time, when the clamping block 145 moves to the clamping groove 15, release the pressing block 144, and the first return spring 142 resets. The moving plate 143 rebounds to drive the clamping block 145 to pop out, and the clamping block 145 engages with the clamping groove 15 to complete the limit of the threaded column 7;

[0023] The present invention can effectively prevent the bolts from loosening due to factors such as vibration and temperature changes during long-term use, thereby ensuring that the connection between the globe valve and the pipeline is always stable and reliable. The stable connection helps to maintain the sealing between the globe valve and the pipeline, reduce the risk of leakage, and improve the overall performance of the system.

Claims

1. A large industrial refrigeration stop valve, comprising a pipeline body, characterized in that: A first flange is fixedly connected to the top of the pipe body. A valve body is provided on the top of the pipe body. A second flange is fixedly connected to the bottom of the valve body. Threaded holes are symmetrically formed in the top of the first flange. Threaded posts are symmetrically threadedly connected to the top of the second flange. A knob is fixedly connected to the top of the threaded post. A cross slot is formed in the top of the knob. A valve stem is installed on the top of the valve body. Assembly rings are symmetrically and slidably provided on the outer side of the valve body. An assembly block is fixedly connected to one side of the assembly ring. Fixing components are symmetrically installed inside the assembly block. Connecting blocks are symmetrically fixedly connected to one end of the assembly ring. Connecting components are symmetrically installed on both sides of the connecting block. Cross blocks are symmetrically fixedly connected to the bottom of the assembly ring. The cross blocks are inserted into the cross slot.

2. The large industrial refrigeration stop valve according to claim 1, characterized in that: The fixing component includes a cavity, a first return spring, a moving plate, a pressing block and a clamping block. Cavities are symmetrically formed inside the assembly block. First return springs are symmetrically fixedly connected to one side inside the cavity. The other end of the first return spring is fixedly connected to the moving plate. The moving plate is slidably connected to the inside of the cavity. A pressing block and a clamping block are respectively fixedly connected to the side of the moving plate away from the first return spring. The other sides of the pressing block and the clamping block both extend out of the side end of the assembly block.

3. The large industrial refrigeration stop valve according to claim 1, wherein: Assembly grooves are symmetrically formed on the outer side of the valve body. The assembly grooves are slidably connected to the assembly blocks.

4. The large industrial refrigeration stop valve according to claim 3, characterized in that: Card slots are symmetrically formed on both sides inside the assembly groove. The card slots are clamped with the clamping blocks.

5. A large industrial refrigeration stop valve according to claim 1, characterized in that: The connecting component includes an internal hole, a second return spring and a fixing post. Internal holes are formed on both sides of the connecting block. A second return spring is fixedly connected to the bottom of the internal hole. The other end of the second return spring is fixedly connected to the fixing post. The fixing post is slidably connected to the inside of the internal hole. The end of the fixing post away from the second return spring extends out of the side end of the connecting block and is arc-shaped.

6. A large industrial refrigeration stop valve according to claim 5, characterized in that: Connecting grooves are symmetrically formed on one side of the assembly ring. The connecting grooves are inserted into the connecting blocks. Fixing holes are symmetrically formed on both sides inside the connecting grooves. The fixing posts are clamped with the fixing holes.

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