Quick door opening flange device

Abstract

The utility model discloses a quick-opening door flange device, which belongs to the technical field of chemical production and processing, and adopts the technical scheme that the quick-opening door flange device comprises a tank body, and the bottom of the tank body is fixedly connected with an upper flange. Due to the fact that the telescopic end of the locking air cylinder and the toothed spinning hoop are connected through the connecting plate in a rotating mode, along with extension of the locking air cylinder, the locking air cylinder can push the toothed spinning hoop to rotate around the outer side of the upper flange, the meshing teeth of the toothed spinning hoop and the toothed spinning lower flange are each provided with an inclined face, and in the rotating process of the toothed spinning hoop, the toothed spinning hoop can rotate around the outer side of the upper flange. The toothed spinning lower flange can be jacked upwards through the interaction of the meshing tooth inclined faces, so that the toothed spinning lower flange and the upper flange are gradually pressed tightly, after the locking air cylinder extends in place, the toothed spinning lower flange is tightly attached to the upper flange, and reliable connection and sealing are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production and processing, in particular to a quick-opening door flange device. Background Art

[0002] Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively, add a flange gasket between the two flange plates, and fasten them together with bolts to complete the connection. Some pipe fittings and equipment already have flange plates, which also belong to flange connection. Because flange connection is easy to use and can withstand greater pressure, it is widely used in industrial production and is commonly used in various chemical production pressure vessels and pipeline connections.

[0003] In daily applications, for low-pressure containers and pipelines, the fixing holes of the two flanges to be connected are usually aligned, and a corresponding flange gasket is set between the flanges. The two flanges are fixed together by bolts and nuts. Each fixing hole requires a set of bolts and nuts for fixing. When the nut is tightened, the bolt tends to move with it, and another wrench is needed to fix the bolt for smooth installation. Since the flange fixing connection uses a large number of bolts, two wrenches are needed to repeat this operation for each bolt, which is time-consuming and labor-intensive to install. In addition, when the installation space is small, the operation is even more inconvenient. Sometimes, the tightening torque of each bolt is different, which makes the pressure of the flange on the flange gasket uneven, affecting the flange sealing.

[0004] The existing patent (Announcement No.: CN206770830U) discloses a split flange connection device. In this utility model, since the bolts are fixed on the annular pressure plate, they will not move with the rotation of the nut. During installation, only the nut needs to be tightened to fix it. The installation is simple and convenient. The annular pressure plate is divided into a left pressure plate and a right pressure plate. When a long pipe is connected to the flange, it can be buckled from the side of the pipe. It is applicable to a wide range of occasions.

[0005] In response to the above problems, existing patents have provided solutions, but the existing flange connection method generally involves passing the bolts through the opened holes and slots and then manually tightening them. Although this method is reliable and strong, the equipment often needs to be cleaned, repaired and slag cleaned during its chemical production process. The traditional flange connection method relies on manual tightening of bolts, and each disassembly and installation requires the use of tools to operate the bolts one by one. Frequent operations are very troublesome and tiring, and also require a lot of operation time, which greatly reduces work efficiency.

[0006] Therefore, a quick-opening door flange device is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a quick-opening door flange device, which can solve the problem that the existing flange connection method generally requires the bolts to be passed through the opened hole groove and then manually tightened. Although this method is reliable and firm, it is often necessary to clean, repair and remove slag from the equipment during its chemical production process. The traditional flange connection method relies on manual tightening of bolts. Each disassembly and installation requires the use of tools to operate the bolts one by one. Frequent operation is very troublesome and tiring, and it also requires a lot of operation time, which greatly reduces the problem of work efficiency.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a quick-opening door flange device, comprising a tank body, an upper flange fixedly connected to the bottom of the tank body, a toothed spun lower flange provided at the bottom of the upper flange, a locking mechanism provided at the bottom of the tank body, the locking mechanism being located on the outside of the toothed spun lower flange and the upper flange, a quick-opening structure provided at the bottom of the toothed spun lower flange, and the quick-opening structure fixedly connected to the front side of the tank body;

[0009] The locking mechanism includes a fixing frame fixedly connected to the bottom of both sides of the tank body, a locking cylinder is bolted inside the fixing frame, a toothed spinning clamp is rotatably connected to the outer side of the upper flange, the toothed spinning clamp is located on the outer side of the toothed spinning lower flange, and connecting plates are fixedly connected on both sides of the toothed spinning clamp, and the outer side of the connecting plate is rotatably connected to the telescopic end of the locking cylinder.

[0010] Preferably, the quick-opening structure includes a fixing sleeve fixedly connected to the front side of the tank body, a cover-opening cylinder is provided at the bottom of the fixing sleeve, and the top of the cover-opening cylinder is rotatably connected to the inside of the fixing sleeve.

[0011] Preferably, the bottom of the toothed spun lower flange is bolted with a connecting sleeve, the interior of the connecting sleeve is rotatably connected to an opening and closing plate, the front side of the interior of the opening and closing plate is rotatably connected to a rotating sleeve, and the top of the rotating sleeve is bolted to the telescopic end of the opening cylinder.

[0012] Preferably, the opening and closing plate is rotatably connected to a fixed plate inside, and the rear side of the fixed plate is fixedly connected to the front side of the tank body.

[0013] Preferably, an interception net is provided inside the toothed spun lower flange, and the interception net is located at the bottom of the upper flange.

[0014] Preferably, a sealing gasket is embedded in the bottom of the upper flange, and the bottom of the sealing gasket contacts the top of the toothed spun lower flange.

[0015] Preferably, the bottom of the toothed spun lower flange is connected to a row of pipes, and the row of pipes is located at the bottom of the interception net.

[0016] Preferably, a connection plate is fixedly connected to the bottom of the row pipe, and holes are formed at four corners of the bottom of the connection plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The present application sets a locking mechanism. When the quick-opening door flange device needs to be closed, the locking cylinders on both sides begin to extend at the same time. Since the connecting plate connects the telescopic end of the locking cylinder with the toothed spinning clamp, and the connection method is a rotating connection, as the locking cylinder extends, it will push the toothed spinning clamp to rotate around the outer side of the upper flange. The teeth of the toothed spinning clamp and the toothed spinning lower flange are both designed with inclined surfaces. During the rotation of the toothed spinning clamp, the toothed spinning lower flange will be pushed upward through the interaction of the tooth inclined surfaces, thereby gradually pressing against the upper flange. When the locking cylinder is extended to its full length, the toothed spinning lower flange fits tightly against the upper flange, achieving a stable The reliable connection and seal ensure that the medium inside the tank will not leak. Compared with the traditional manual tightening method of bolts, this method of tightening the flange by driving the clamp to rotate by the cylinder is simpler and faster to operate. There is no need to tighten the bolts one by one, which greatly saves time and manpower. In addition, when the quick-opening door flange device needs to be opened, the locking cylinder contracts. At this time, the toothed spinning clamp rotates in the opposite direction under the drive of the locking cylinder. The toothed spinning lower flange gradually descends under the action of its own gravity and the meshing inclined surface. The meshing teeth of the toothed spinning clamp and the toothed spinning lower flange are staggered, which releases the lock on the toothed spinning lower flange and prepares for the subsequent opening of the toothed spinning lower flange.

[0019] 2. The present application sets a quick-opening structure. After the teeth of the toothed spinning clamp and the toothed spinning lower flange are staggered, the quick-opening structure starts to work. The quick-opening structure drives the toothed spinning lower flange to open through its own mechanical movement, thereby facilitating operations such as cleaning, maintenance, and slag cleaning inside the tank body. When the toothed spinning lower flange needs to be closed, the quick-opening structure operates in reverse to push the lower cover upward, so that it is recombined with the upper flange and the toothed spinning lower flange and other components, and then the entire device is locked through the locking mechanism to restore it to a sealed state. The existence of the quick-opening structure makes the opening and closing process of the lower cover more convenient and efficient, and works in conjunction with the locking mechanism to significantly improve the operational convenience and work efficiency of the entire quick-opening door flange device, and effectively solves the problems of trouble, fatigue and low efficiency faced by traditional flange connection methods during frequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the quick-opening door flange device of the present utility model;

[0021] Figure 2 This is a schematic top view of the tank body of the utility model;

[0022] Figure 3 It is a schematic diagram of the right side view of the tank body of the utility model;

[0023] Figure 4 This is a structural diagram of the locking mechanism of the utility model;

[0024] Figure 5 This is a structural diagram of the toothed spinning lower flange of the utility model;

[0025] Figure 6 This is a structural diagram of the quick-opening structure of the utility model;

[0026] Figure 7 This is a structural diagram of the upper flange of the utility model.

[0027] In the figure, 1. tank body; 2. upper flange; 3. toothed spun lower flange; 4. locking mechanism; 401. fixing frame; 402. locking cylinder; 403. toothed spun clamp; 404. connecting plate; 5. quick-opening structure; 501. fixing sleeve; 502. cover opening cylinder; 503. connecting sleeve; 504. opening and closing plate; 505. rotating sleeve; 506. fixed and rotating plate; 6. intercepting net; 7. sealing gasket; 8. drainage pipe; 9. connecting plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-7 , this utility model provides a technical solution:

[0030] A quick-opening door flange device includes a tank body 1, an upper flange 2 is fixedly connected to the bottom of the tank body 1, a toothed spun lower flange 3 is provided at the bottom of the upper flange 2, a locking mechanism 4 is provided at the bottom of the tank body 1, the locking mechanism 4 is located outside the toothed spun lower flange 3 and the upper flange 2, and a quick-opening structure 5 is provided at the bottom of the toothed spun lower flange 3, and the quick-opening structure 5 is fixedly connected to the front side of the tank body 1;

[0031] The locking mechanism 4 includes a fixing frame 401 fixedly connected to the bottom of both sides of the tank body 1, and a locking cylinder 402 is bolted inside the fixing frame 401. The outer side of the upper flange 2 is rotatably connected to a toothed spun clamp 403, and the toothed spun clamp 403 is located on the outer side of the toothed spun lower flange 3. Both sides of the toothed spun clamp 403 are fixedly connected to a connecting plate 404, and the outer side of the connecting plate 404 is rotatably connected to the telescopic end of the locking cylinder 402.

[0032] In this embodiment: by setting the locking mechanism 4, the automatic operation of flange connection and loosening is realized. During operation, when the device needs to be closed, it is only necessary to start the locking cylinder 402 to extend, and the cylinder pushes the toothed spinning clamp 403 to rotate. The toothed spinning clamp 403 is used to cooperate with the toothed spinning lower flange 3. The toothed spinning lower flange 3 and the upper flange 2 are easily compressed and sealed. The whole process does not require manual tightening of multiple bolts one by one as in traditional flange connections, which greatly saves operation time and manpower. For example, in chemical production, equipment Frequent opening and closing operations may take half an hour or even longer each time if traditional methods are used, but using this device can be completed in just a few minutes, significantly improving the efficiency of equipment maintenance, cleaning and overhaul. Then, after the locking mechanism 4 is unlocked, the quick-opening structure 5 can quickly open the bottom of the tank body 1, making it convenient for personnel to operate inside the tank body 1. For example, when discharging slag and cleaning, the lower cover can be quickly opened to allow the waste slag to be discharged smoothly, and then it can be quickly closed, shortening the equipment downtime and improving production continuity.

[0033] Specifically, such as Figure 6 As shown, the quick-opening structure 5 includes a fixing sleeve 501 fixedly connected to the front side of the tank body 1 , a cover-opening cylinder 502 is provided at the bottom of the fixing sleeve, and the top of the cover-opening cylinder 502 is rotatably connected to the inside of the fixing sleeve 501 .

[0034] Specifically, such as Figure 6 As shown, the bottom of the toothed spun lower flange 3 is bolted with a connecting sleeve 503, the interior of the connecting sleeve 503 is rotatably connected to the opening and closing plate 504, the front side of the interior of the opening and closing plate 504 is rotatably connected to the rotating sleeve 505, and the top of the rotating sleeve 505 is bolted to the telescopic end of the cover opening cylinder 502.

[0035] Specifically, such as Figure 6 As shown, the opening and closing plate 504 is internally rotatably connected to a fixed rotating plate 506 , and the rear side of the fixed rotating plate 506 is fixedly connected to the front side of the tank body 1 .

[0036] In this embodiment, the opening cylinder 502 in the quick-opening structure 5 is cleverly connected with the fixed sleeve 501 and the rotating sleeve 505 to achieve effective control of the opening and closing plate 504. When the bottom of the tank body 1 needs to be opened, the opening cylinder 502 contracts. Since the rotating sleeve 505 is rotatably connected to the front side of the opening and closing plate 504, and the opening and closing plate 504 is rotatably connected to the front side of the tank body 1 through the fixed rotating plate 506, the contraction action of the opening cylinder 502 is converted into the opening and closing plate 504 moving around the fixed rotating plate 506. The rotational movement of the fixed plate 506 can quickly open the bottom of the tank body 1, saving a lot of operation time. At the same time, the setting of the fixed rotating plate 506 provides a stable rotation fulcrum for the opening and closing plate 504, ensuring that the opening and closing plate 504 moves smoothly and accurately during the opening and closing process. In addition, the fixing sleeve 501 provides a stable installation position for the opening cylinder 502, and the connecting sleeve 503 effectively connects the opening and closing plate 504 with the toothed spinning lower flange 3, so that the entire quick-opening structure 5 can achieve efficient functions in a limited space.

[0037] Specifically, such as Figure 5 、 Figure 6 As shown, an interception net 6 is provided inside the toothed spun lower flange 3 , and the interception net 6 is located at the bottom of the upper flange 2 .

[0038] Specifically, such as Figure 7 As shown, a sealing gasket 7 is embedded in the bottom of the upper flange 2 , and the bottom of the sealing gasket 7 contacts the top of the toothed spun lower flange 3 .

[0039] In this embodiment: the setting of the intercepting net 6 can effectively prevent solid impurities or residues inside the tank body 1 from entering the drain pipe 8, avoiding the problem of clogging of the drain pipe 8, and also facilitating subsequent centralized cleaning. It also protects the drain pipe 8 and downstream equipment from damage by impurities, thereby extending the service life of the equipment. By setting its sealing gasket 7 between the upper flange 2 and the toothed spun lower flange 3, when the toothed spun lower flange 3 is pressed against the upper flange 2 under the action of the locking mechanism 4, the sealing gasket 7 is fully compressed, filling the tiny gap between the flanges, and forming a good sealing environment, which is crucial to preventing leakage of liquid, gas or other media inside the tank body 1. Whether in a high-pressure chemical reaction process or in the food and pharmaceutical industries with high sealing requirements, the sealing gasket 7 can ensure the sealing performance of the equipment, and guarantee production safety and product quality.

[0040] Specifically, such as Figure 3 、 Figure 6 As shown, the bottom of the toothed spun lower flange 3 is connected to a drain pipe 8 , which is located at the bottom of the interception net 6 .

[0041] Specifically, such as Figure 2 、 Figure 5 As shown, a connecting plate 9 is fixedly connected to the bottom of the row pipe 8, and holes are formed at the four corners of the bottom of the connecting plate 9.

[0042] In this embodiment: the bottom of the toothed spun lower flange 3 is directly connected through the drainage pipe 8, so that the material filtered by the interception net 6 can be discharged smoothly. At the same time, the hole groove at the bottom of the connecting plate 9 at the bottom of the drainage pipe 8 provides convenience for the connection of external pipes or other equipment. By using bolts and other connecting parts to pass through the hole groove, the drainage pipe 8 can be firmly connected to the downstream collection equipment, processing equipment, etc., forming a complete process flow.

[0043] Working principle: During the use of the quick-opening door flange device, the locking cylinder 402 is first started to extend. Since the telescopic end of the locking cylinder 402 is rotationally connected to the toothed spinning hoop 403 through the connecting plate 404, and the toothed spinning hoop 403 is rotationally connected to the outer side of the upper flange 2, as the locking cylinder 402 extends, the toothed spinning hoop 403 will rotate around the outer side of the upper flange 2. The teeth of the toothed spinning hoop 403 and the toothed spinning lower flange 3 both have inclined surfaces. When the toothed spinning hoop 403 rotates, the inclined surfaces of its teeth will interact with the inclined surfaces of the teeth of the toothed spinning lower flange 3, thereby pushing the toothed spinning lower flange 3 upward, so that the toothed spinning lower flange 3 is aligned with the upper flange 2. The flange 2 is gradually tightened. During this process, the sealing gasket 7 embedded in the bottom of the upper flange 2 is compressed, filling the small gap between the flanges to form a reliable seal. At the same time, the interception net 6 inside the toothed spinning lower flange 3 intercepts the solid impurities that may exist in the tank body 1 to prevent them from entering the discharge pipe 8. When the locking cylinder 402 is extended to its full length, the lid is closed. At this time, the bottom of the tank body 1 is in a sealed state and normal production operations can be carried out. Later, when it is necessary to clean, inspect or discharge slag inside the tank body 1, the locking cylinder 402 is started to contract first. As the locking cylinder 402 contracts, the toothed spinning clamp 403 rotates in the opposite direction, and the toothed spinning lower flange 3 is pressed against itself. The cylinder 502 is then retracted, and the top of the cylinder 502 is connected to the interior of the fixed sleeve 501, and the bottom is bolted to the rotating sleeve 505 on the front side of the opening and closing plate 504, and the opening and closing plate 504 is connected to the front side of the tank body 1 through the fixed rotating plate 506. The contraction of the cylinder 502 will drive the opening and closing plate 504 to rotate around the fixed rotating plate 506, thereby opening the bottom of the tank body 1. At this time, the waste residue and other materials inside the tank body 1 can be discharged through the discharge pipe 8 connected to the bottom of the toothed spinning lower flange 3. The connecting plate 9 and the hole groove at the bottom of 8 are convenient for external pipes or collection equipment to carry out subsequent processing of materials. After completing operations such as cleaning, maintenance or slag discharge, it is necessary to close the bottom of the tank body 1 again. First, start the opening cylinder 502 to extend, so that the opening and closing plate 504 rotates in the opposite direction to close the bottom of the tank body 1, and then start the locking cylinder 402 to extend again, repeat the action of closing the lid, and rotate the toothed spinning clamp 403 to press the toothed spinning lower flange 3 upward and press it against the upper flange 2 to restore the sealing state, so that the device can continue to be put into normal use. During the whole process, various components work together to achieve high efficiency, convenient operation, reliable sealing and function of the quick-opening door flange device.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-opening door flange device, comprising a tank body (1), characterized in that: The bottom of the tank body (1) is fixedly connected to an upper flange (2), the bottom of the upper flange (2) is provided with a toothed spun lower flange (3), the bottom of the tank body (1) is provided with a locking mechanism (4), the locking mechanism (4) is located outside the toothed spun lower flange (3) and the upper flange (2), the bottom of the toothed spun lower flange (3) is provided with a quick-opening structure (5), and the quick-opening structure (5) is fixedly connected to the front side of the tank body (1); The locking mechanism (4) comprises a fixing frame (401) fixedly connected to the bottom of both sides of the tank body (1); a locking cylinder (402) is bolted inside the fixing frame (401); a toothed spinning clamp (403) is rotatably connected to the outer side of the upper flange (2); the toothed spinning clamp (403) is located on the outer side of the toothed spinning lower flange (3); connecting plates (404) are fixedly connected to both sides of the toothed spinning clamp (403); and the outer side of the connecting plate (404) is rotatably connected to the telescopic end of the locking cylinder (402).

2. The quick-opening door flange device according to claim 1, characterized in that: The quick-opening structure (5) comprises a fixed sleeve (501) fixedly connected to the front side of the tank body (1); a cover-opening cylinder (502) is provided at the bottom of the fixed sleeve; and the top of the cover-opening cylinder (502) is rotatably connected to the inside of the fixed sleeve (501).

3. The quick-opening door flange device according to claim 2, characterized in that: The bottom of the toothed spinning lower flange (3) is bolted with a connecting sleeve (503), the interior of the connecting sleeve (503) is rotatably connected to an opening and closing plate (504), the front side of the interior of the opening and closing plate (504) is rotatably connected to a rotating sleeve (505), and the top of the rotating sleeve (505) is bolted to the telescopic end of the cover opening cylinder (502).

4. The quick-opening door flange device according to claim 3, characterized in that: The opening and closing plate (504) is internally rotatably connected to a fixed rotating plate (506), and the rear side of the fixed rotating plate (506) is fixedly connected to the front side of the tank body (1).

5. The quick-opening door flange device according to claim 1, characterized in that: An interception net (6) is provided inside the toothed spun lower flange (3), and the interception net (6) is located at the bottom of the upper flange (2).

6. The quick-opening door flange device according to claim 1, characterized in that: A sealing gasket (7) is embedded in the bottom of the upper flange (2), and the bottom of the sealing gasket (7) contacts the top of the toothed spun lower flange (3).

7. The quick-opening door flange device according to claim 1, characterized in that: The bottom of the toothed spun lower flange (3) is connected to a row of pipes (8), and the row of pipes (8) is located at the bottom of the interception net (6).

8. The quick-opening door flange device according to claim 7, characterized in that: The bottom of the row pipe (8) is fixedly connected to a connecting plate (9), and four corners of the bottom of the connecting plate (9) are provided with holes and slots.

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