High-performance flange blind plate

Abstract

This utility model provides a high-performance flange blind flange, relating to the field of flange blind flanges. The utility model includes a flange blind flange body. By incorporating a sealing device, when the flange blind flange body is installed on one side of a pipe flange for sealing, the side with the sealing ring block abuts against one side of the pipe flange, and is then fixed together with bolts. This causes the sealing ring block to be squeezed between the pipe flange and the flange blind flange body for sealing. Over time, when the end of the sealing ring block exposed between the pipe flange and the flange blind flange body ages and shrinks, the adjustment mechanism can be adjusted. This causes the sliding plate to slide towards the pipe flange side in the groove, squeezing the sealing ring block out of the groove. This allows it to be squeezed again and tightly fitted to one side of the pipe flange for sealing, thus improving the sealing effect and service life, and reducing the frequency of sealing ring block replacement.

Description

Technical Field

[0001] This utility model relates to the field of flange blind plates, and in particular to high-performance flange blind plates. Background Technology

[0002] A blind flange is a metal plate used to seal the flange opening of a pipe or equipment. It is usually installed between flanges to seal the port of the pipe or equipment to prevent the flow of fluid or gas. It is a common temporary or permanent sealing device used in piping systems.

[0003] To extend service life, existing blind flange bodies are typically made of stainless steel, which inherently possesses strong corrosion resistance, making them high-performance blind flange bodies. When the blind flange body is installed on one side of the pipe flange for sealing, the seal between the blind flange body and the pipe flange is usually achieved by an elastic sealing ring block installed on one side of the blind flange body. The sealing ring block is mostly made of materials such as rubber or asbestos rubber. The preload generated by bolt tightening causes the sealing ring block to elastically deform and tightly fit against one side of the pipe flange, thereby blocking the flow of media. However, during long-term use, the sealing ring block will gradually experience elastic decay, shrinkage, and hardening due to factors such as media corrosion, temperature changes, pressure fluctuations, and the aging of its own materials. When the sealing ring block ages and shrinks, the tightness of its fit with the pipe flange side will decrease, leading to weakened sealing performance and even leakage, thus limiting its service life. Utility Model Content

[0004] The technical problem this utility model aims to solve is as follows: When a flange blind plate body is installed on one side of a pipe flange for sealing, the seal between the flange blind plate body and the pipe flange is usually achieved by an elastic sealing ring block installed on one side of the flange blind plate body. The sealing ring block is mostly made of materials such as rubber and asbestos rubber. The pre-tightening force generated by bolt tightening causes the sealing ring block to elastically deform and tightly fit against one side of the pipe flange, thereby blocking the flow of media. However, during long-term use, the sealing ring block will gradually experience elastic decay, shrinkage and hardening due to factors such as media corrosion, temperature changes, pressure fluctuations and the aging of its own materials. When the sealing ring block ages and shrinks, the tightness of its fit with one side of the pipe flange will decrease, resulting in weakened sealing performance and even leakage, and a limited service life.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-performance flange blind plate, including a flange blind plate body, and a sealing device is provided on one side of the flange blind plate body. The sealing device can adjust the height of the sealing ring block by means of an adjustment mechanism according to the actual use and the aging and shrinkage of the sealing ring block during use, so as to achieve the effect of tightly fitting the pipe flange and improving the sealing performance.

[0006] Preferably, the sealing device includes a sliding plate, a groove is provided on one side of the flange blind plate body, wherein the sliding plate is slidably installed in the inner wall of the groove; a sealing ring block, wherein one side of the sealing ring block is fixedly installed on one side of the sliding plate and slidably installed in the inner wall of the groove; and an adjusting mechanism, wherein the adjusting mechanism is disposed between one side of the sliding plate and the inner wall of the groove, for adjusting and locking the sliding position of the sliding plate in the groove, thereby adjusting the height of the sealing ring block.

[0007] The effect achieved by the above-mentioned components is as follows: By setting up a sealing device, when the flange blind plate body is installed on one side of the pipe flange for sealing, the side with the sealing ring block will abut against one side of the pipe flange, and then be fixed together with bolts, so that the sealing ring block is squeezed between the pipe flange and the flange blind plate body for sealing. When the end of the sealing ring block exposed between the pipe flange and the flange blind plate body ages and shrinks after a long period of use, the adjustment mechanism can be adjusted, and then the sliding plate will slide towards the pipe flange side in the slide groove, squeezing the sealing ring block out of the slide groove, so that it can be squeezed tightly against one side of the pipe flange for sealing. Therefore, the sealing effect and service life are improved, and the number of times the sealing ring block is replaced is reduced.

[0008] Preferably, the adjusting mechanism includes a plurality of first springs, wherein the two ends of the first springs are respectively fixedly installed on one side of the inner wall of the slide groove and one side of the slide plate; an oil tank, wherein one side of the oil tank is fixedly installed on one side of the flange blind plate body; a flow guide bracket, wherein one end of the flow guide bracket is installed through one side of the oil tank, while the other several ends are installed through one side of the flange blind plate body and extend into the inner wall of the slide groove; a threaded rod, wherein one end of the threaded rod is installed through one side of the inner wall of the oil tank; and a piston plate, wherein the piston plate is slidably installed in the inner wall of the oil tank, and the inner wall is threadedly connected to the outer surface of the threaded rod.

[0009] The effect achieved by the above components is as follows: By setting an adjustment mechanism, the interior of the oil tank and the interior of the slide are connected in series by a guide pipe frame. Then, the hydraulic oil between the two is kept in a sealed environment by a sliding plate and a piston plate. In this way, when the sealing ring block ages and shrinks and needs adjustment, the threaded rod can be turned a certain number of times, which will drive the piston plate to slide to one end in the oil tank, squeezing the internal hydraulic oil into the guide pipe frame, and then injecting it into the inner wall of the slide. This pushes the sliding plate to slide to one end, causing the first spring to stretch and adjust the height of the sealing ring block protruding from the slide. Therefore, even after one end ages and shrinks, it can still be tightly attached to one side of the pipe flange for sealing, thereby improving the sealing effect and service life, and reducing the number of times the sealing ring block needs to be replaced.

[0010] Preferably, the adjustment mechanism further includes several telescopic rods, wherein the outer surface of the telescopic rods penetrates the inner wall of the first spring, and both ends are fixedly installed on one side of the inner wall of the slide groove and one side of the slide plate, respectively.

[0011] The effect achieved by the above components is that by setting up the telescopic rod, the inner wall of the first spring can be supported and reinforced, making it less prone to damage during use and increasing its service life.

[0012] Preferably, the adjustment mechanism further includes several protective covers, wherein one side of the protective cover is fixedly installed on one side of the flange blind plate body, and the inner wall is sleeved on several end outer surfaces of the guide pipe frame.

[0013] The effect achieved by the above components is that by setting up protective covers, the outer surfaces of several ends of the guide tube frame can be covered and protected, making it less likely to be damaged during use.

[0014] Preferably, a limiting mechanism is provided between one side of the threaded rod and one side of the oil tank. The limiting mechanism includes a locking block, one side of which is fixedly installed on one side of the threaded rod, and a plurality of locking slots are provided on one side of the oil tank; and a locking rod, one end of which is inserted into the inner wall of the locking block and the inner wall of the locking slots.

[0015] The effect achieved by the above components is as follows: by setting a limiting mechanism, after the threaded rod is rotated to a certain angle, it will drive the locking block to rotate to a certain angle as well. Then the locking rod can be inserted into the inner wall of the locking block and the corresponding locking groove, so as to limit and fix the rotated threaded rod, making it more firmly fixed to the adjusted sealing ring block and improving the sealing effect.

[0016] Preferably, the limiting mechanism further includes a second spring, wherein the inner wall of the second spring is sleeved on the outer surface of one end of the clamping rod, and both ends are respectively fixedly installed on one side of the clamping rod and one side of the clamping hole block.

[0017] The effect achieved by the above components is as follows: by setting a second spring, when the end of the locking rod in the locking block away from the locking groove is pulled to a certain position, the second spring will be driven to contract. In this way, after the locking rod is released, under the reset action of the second spring, one end of the locking rod will be locked into the locking groove and fixed in place, making it difficult for it to slip out and improving the limiting effect.

[0018] Preferably, a limiting block is rotatably mounted on the outer surface of the clamping rod, and the limiting block is inserted into the inner wall of the clamping hole block.

[0019] The effect achieved by the above components is as follows: by setting a limiting block, when the end of the locking rod away from the slot in the locking block is pulled to a certain position, the limiting block will be pulled out from the inner wall of the locking block. At this time, the limiting block can be rotated to a certain angle so that the side of the locking block that is misaligned with the inner wall of the locking block abuts against one side of the locking block. This can be used in conjunction with the reset of the second spring to limit the locking rod, which makes it convenient to rotate the locking block and the threaded rod.

[0020] The beneficial effects of this utility model are:

[0021] By installing a sealing device, when the flange blind plate body is installed on one side of the pipe flange for sealing, the side with the sealing ring block is pressed against the side of the pipe flange and then fixed together with bolts. This allows the sealing ring block to be squeezed between the pipe flange and the flange blind plate body for sealing. When the end of the sealing ring block exposed between the pipe flange and the flange blind plate body ages and shrinks after prolonged use, the adjustment mechanism can be adjusted to move the sliding plate in the groove towards the pipe flange side, squeezing the sealing ring block out of the groove. This allows it to be squeezed again and tightly fitted to one side of the pipe flange for sealing, thus improving the sealing effect and service life, and reducing the frequency of sealing ring block replacement. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the main body of the flange blind plate of this utility model;

[0025] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;

[0026] Figure 4 This is a three-dimensional structural diagram of the fuel tank of this utility model;

[0027] Figure 5 for Figure 4 A magnified three-dimensional structural diagram at point A in the middle.

[0028] Legend: 1. Flange blind plate body; 2. Sealing device; 21. Slide groove; 22. Slide plate; 23. Sealing ring block; 24. Adjustment mechanism; 241. First spring; 242. Oil tank; 243. Guide pipe bracket; 244. Threaded rod; 245. Piston plate; 246. Protective cover; 247. Telescopic rod; 25. Limiting mechanism; 251. Locking block; 252. Locking groove; 253. Locking rod; 254. Second spring; 255. Limiting block. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Figure 1-5 The high-performance flange blind plate shown includes a flange blind plate body 1. A sealing device 2 is provided on one side of the flange blind plate body 1. The sealing device 2 can adjust the height of the sealing ring block 23 according to the actual use and the aging and shrinkage of the sealing ring block 23 during use, by means of the adjustment mechanism 24, so as to achieve the effect of tightly fitting the pipe flange and improving the sealing performance.

[0032] Figure 1-5The sealing device 2 shown includes a sliding plate 22, a groove 21 is provided on one side of the flange blind plate body 1, wherein the sliding plate 22 is slidably installed in the inner wall of the groove 21; a sealing ring block 23, wherein one side of the sealing ring block 23 is fixedly installed on one side of the sliding plate 22 and slidably installed in the inner wall of the groove 21; and an adjusting mechanism 24, wherein the adjusting mechanism 24 is disposed between one side of the sliding plate 22 and the inner wall of the groove 21, for adjusting and locking the sliding position of the sliding plate 22 in the groove 21, thereby adjusting the height of the sealing ring block 23. By setting the sealing device 2, when the flange blind plate body 1 is installed on one side of the pipe flange for sealing, the side with the sealing ring block 23 will abut against one side of the pipe flange, and then be fixed together with bolts, so that the sealing ring block 23 is squeezed between the pipe flange and the flange blind plate body 1 for sealing. When the end of the sealing ring block 23 exposed between the pipe flange and the flange blind plate body 1 ages and shrinks after a long period of use, the adjustment mechanism 24 can be adjusted, and then the sliding plate 22 will slide towards the pipe flange side in the sliding groove 21, squeezing the sealing ring block 23 out of the sliding groove 21, so that it can be squeezed tightly against one side of the pipe flange for sealing. Therefore, the sealing effect and service life are improved, and the number of times the sealing ring block 23 is replaced is reduced. The adjusting mechanism 24 includes several first springs 241, with both ends of the first springs 241 fixedly installed on one side of the inner wall of the slide groove 21 and one side of the slide plate 22, respectively; an oil tank 242, with one side of the oil tank 242 fixedly installed on one side of the flange blind plate body 1; a guide pipe bracket 243, with one end of the guide pipe bracket 243 penetrating and installed on one side of the oil tank 242, while the other several ends penetrate through one side of the flange blind plate body 1 and extend into the inner wall of the slide groove 21; a threaded rod 244, with one end of the threaded rod 244 penetrating and installed on one side of the inner wall of the oil tank 242; and a piston plate 245, with the piston plate 245 slidably installed in the inner wall of the oil tank 242, and the inner wall being threadedly connected to the outer surface of the threaded rod 244. By setting the adjustment mechanism 24, the interior of the oil tank 242 and the interior of the slide groove 21 are connected in series by the guide pipe frame 243. Then, the hydraulic oil between the two is kept in a closed environment by the slide plate 22 and the piston plate 245. In this way, when the sealing ring block 23 ages and shrinks and needs adjustment, the threaded rod 244 can be turned a certain number of times to drive the piston plate 245 to slide to one end in the oil tank 242, squeezing the internal hydraulic oil into the guide pipe frame 243, and then injecting it into the inner wall of the slide groove 21. This pushes the slide plate 22 to slide to one end, causing the first spring 241 to stretch and adjust the height of the sealing ring block 23 protruding from the slide groove 21. Therefore, even after one end ages and shrinks, it can still be tightly attached to one side of the pipe flange for sealing, thereby improving the sealing effect and service life and reducing the number of times the sealing ring block 23 needs to be replaced.

[0033] Figure 1-5The adjustment mechanism 24 also includes several telescopic rods 247. The outer surface of each telescopic rod 247 penetrates the inner wall of the first spring 241, and both ends are fixedly installed on one side of the inner wall of the slide groove 21 and one side of the slide plate 22, respectively. By providing the telescopic rods 247, the inner wall of the first spring 241 can be supported and reinforced, making it less prone to damage during use and extending its service life. The adjustment mechanism 24 also includes several protective covers 246. One side of each protective cover 246 is fixedly installed on one side of the flange blind plate body 1, and its inner wall is fitted over several ends of the outer surface of the guide tube frame 243. By providing the protective covers 246, several ends of the guide tube frame 243 can be covered and protected, making it less prone to damage during use.

[0034] Figure 1-5 A limiting mechanism 25 is provided between one side of the threaded rod 244 and one side of the oil tank 242. The limiting mechanism 25 includes a locking block 251, one side of which is fixedly installed on one side of the threaded rod 244, and several locking slots 252 are provided on one side of the oil tank 242; and a locking rod 253, one end of which is inserted into the inner wall of the locking block 251 and the inner wall of the locking slots 252. By setting the limiting mechanism 25, after the threaded rod 244 is rotated to a certain angle, the locking block 251 will also rotate to a certain angle. Then, the locking rod 253 can be inserted into the inner wall of the locking block 251 and the corresponding locking slots 252, thereby limiting and fixing the rotated threaded rod 244, making it more firmly fixed to the adjusted sealing ring block 23 and improving the sealing effect.

[0035] Figure 1-5 The limiting mechanism 25 shown also includes a second spring 254, the inner wall of which is sleeved on the outer surface of one end of the locking rod 253, and both ends are fixedly installed on one side of the locking rod 253 and one side of the locking block 251, respectively. By providing the second spring 254, when the end of the locking rod 253 in the locking block 251 away from the slot 252 is pulled to a certain position, the second spring 254 will contract. Thus, after the locking rod 253 is released, under the restoring action of the second spring 254, one end of the locking rod 253 will be locked into the slot 252 and fixed, preventing it from slipping out and improving the limiting effect. A limiting block 255 is rotatably mounted on the outer surface of the locking rod 253, and the limiting block 255 is inserted into the inner wall of the locking block 251. By setting a limiting block 255, when the end of the locking rod 253 in the locking hole block 251 away from the locking groove 252 is pulled to a certain position, the limiting block 255 will be pulled out from the inner wall of the locking hole block 251. At this time, the limiting block 255 can be rotated to a certain angle so that the side of the locking rod 253 that is misaligned with the inner wall of the locking hole block 251 abuts against one side of the locking hole block 251. This can be used in conjunction with the reset of the second spring 254 to limit the locking rod 253, which makes it convenient to rotate the locking hole block 251 and the threaded rod 244.

[0036] Working Principle: To extend service life, existing flange blind flange bodies are typically made of stainless steel, which inherently possesses strong corrosion resistance, making it a high-performance flange blind flange body. When the flange blind flange body 1 is installed on one side of the pipe flange for sealing, the side with the sealing ring block 23 is pressed against the side of the pipe flange and then fixed together with bolts. This allows the sealing ring block 23 to be squeezed between the pipe flange and the flange blind flange body 1 for sealing. Over time, when the end of the sealing ring block 23 exposed between the pipe flange and the flange blind flange body 1 ages and shrinks, the end of the clamping rod 253 in the clamping block 251 away from the clamping groove 252 can be pulled to a certain position, which will cause the limiting block 255 to be pulled out from the inner wall of the clamping block 251. The second spring 254 is contracted, at which point the limiting block 255 can be rotated to a certain angle, so that it abuts against one side of the inner wall of the locking block 251, thereby limiting the locking rod 253 in conjunction with the reset of the second spring 254. Then, the threaded rod 244 is turned a certain number of times, causing the piston plate 245 to slide to one end in the oil tank 242, squeezing the internal hydraulic oil into the guide tube frame 243, and then into the inner wall of the injection groove 21, pushing the slide plate 22 to one end, causing the first spring 241 to stretch, and adjusting the height of the sealing ring block 23 protruding from the groove 21. Therefore, even after one end has aged and shrunk, it can still be tightly attached to one side of the pipe flange for sealing, thereby improving the sealing effect and service life, and reducing the number of times the sealing ring block 23 needs to be replaced. Finally, after releasing the locking rod 253, under the reset action of the second spring 254, one end of the locking rod 253 will be locked into the locking groove 252 and fixed in place. This will limit and fix the rotated threaded rod 244, making it more firmly fixed to the adjusted sealing ring block 23 and improving the sealing effect.

[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-performance flange blind plate, comprising a flange blind plate body (1), characterized in that: A sealing device (2) is provided on one side of the flange blind plate body (1). The sealing device (2) can adjust the height of the sealing ring block (23) by means of the adjustment mechanism (24) according to the actual use and the aging and shrinkage of the sealing ring block (23) during use, so as to achieve the effect of tightly fitting the pipe flange and improving the sealing performance.

2. The high-performance flange blind plate according to claim 1, characterized in that: The sealing device (2) includes a sliding plate (22), and a groove (21) is provided on one side of the flange blind plate body (1), wherein the sliding plate (22) is slidably installed in the inner wall of the groove (21); A sealing ring block (23), wherein one side of the sealing ring block (23) is fixedly installed on one side of the slide plate (22) and slidably installed in the inner wall of the slide groove (21); Adjustment mechanism (24), wherein the adjustment mechanism (24) is located between one side of the slide plate (22) and the inner wall of the slide groove (21), for adjusting and locking the position of the slide plate (22) in the slide groove (21), thereby adjusting the height of the sealing ring block (23).

3. The high-performance flange blind plate according to claim 2, characterized in that: The adjustment mechanism (24) includes a plurality of first springs (241), wherein the two ends of the first springs (241) are respectively fixedly installed on one side of the inner wall of the slide (21) and one side of the slide plate (22); Oil tank (242), wherein one side of oil tank (242) is fixedly installed on one side of flange blind plate body (1); The guide tube support (243) has one end installed through one side of the oil tank (242), while the other ends penetrate one side of the flange blind plate body (1) and extend into the inner wall of the chute (21); A threaded rod (244), one end of which is installed through the inner wall of the oil tank (242); Piston plate (245), wherein piston plate (245) is slidably mounted in the inner wall of oil tank (242), and the inner wall is threadedly connected to the outer surface of threaded rod (244).

4. The high-performance flange blind plate according to claim 3, characterized in that: The adjustment mechanism (24) also includes several telescopic rods (247), wherein the outer surface of the telescopic rods (247) penetrates the inner wall of the first spring (241), and the two ends are respectively fixedly installed on one side of the inner wall of the slide groove (21) and one side of the slide plate (22).

5. The high-performance flange blind plate according to claim 3, characterized in that: The adjustment mechanism (24) also includes several protective covers (246), one side of which is fixedly installed on one side of the flange blind plate body (1), and the inner wall is sleeved on several outer surfaces of the guide pipe frame (243).

6. The high-performance flange blind plate according to claim 3, characterized in that: A limiting mechanism (25) is provided between one side of the threaded rod (244) and one side of the oil tank (242). The limiting mechanism (25) includes a locking block (251), wherein one side of the locking block (251) is fixedly installed on one side of the threaded rod (244), and a plurality of locking slots (252) are provided on one side of the oil tank (242). A locking rod (253), one end of which is inserted into the inner wall of the locking hole block (251) and the inner wall of the locking groove (252).

7. The high-performance flange blind plate according to claim 6, characterized in that: The limiting mechanism (25) further includes a second spring (254), wherein the inner wall of the second spring (254) is sleeved on the outer surface of one end of the clamping rod (253), and both ends are respectively fixedly installed on one side of the clamping rod (253) and one side of the clamping block (251).

8. The high-performance flange blind plate according to claim 6, characterized in that: The outer surface of the lever (253) is rotatably mounted with a limiting block (255), which is inserted into the inner wall of the locking hole block (251).

Images