Auxiliary tool for quickly opening blind plate

Abstract

The utility model provides an auxiliary tool for quickly opening a blind plate, which comprises a mounting ring detachably mounted at the front end of a barrel flange; the rotating ring is coaxially and rotatably mounted on the mounting ring, and the rotating ring is arranged on the peripheral wall of the cambered surface of the barrel flange in a sleeving manner; the puller bolt is elastically connected to the rotating ring and is in threaded fit with a bolt hole in the barrel flange; the impact rod is movably connected to the rotating ring and matched with a bolt hole in the barrel flange in an inserted mode. The quick-opening blind plate jackscrew hole is utilized, through mutual cooperation of the puller bolt and the impact rod, blocking and adhesion of the locking ring can be eliminated, the quick-opening blind plate difficult to open can be conveniently opened, the effect is good, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This application relates to the field of blind plate opening tools, and in particular to a quick-opening blind plate auxiliary tool. Background Technology

[0002] The locking ring type quick-opening blind flange consists of a blind flange cover, a blind flange body flange, a retractable integral locking ring, a self-tightening lip seal, an opening mechanism, and a safety locking device, etc. Figure 1 As shown. The existing opening method is as follows: after the replacement is qualified, when the equipment pressure is zero, slowly unscrew the alarm screw, then screw the alarm screw into the bolt hole of the insert to remove the insert as a handle, then turn the locking mechanism lever counterclockwise to retract the entire locking ring into the locking ring groove, pull the door operating mechanism outward, and finally open the blind plate.

[0003] Its disadvantages are: during equipment anti-corrosion treatment, grinding dust can enter the locking ring through gaps, and paint can also enter the locking ring through gaps during spraying. Rust and dust easily accumulate inside the locking ring and its groove, which can easily lead to insufficient locking ring strength and deformation after long-term operation. This can cause the locking ring to jam and stick, making it unable to close and causing difficulty in opening the blind flange. Utility Model Content

[0004] To address the difficulty in opening blind flanges when the locking ring becomes stuck, this application provides a quick-opening blind flange auxiliary tool.

[0005] The quick-opening blind flange auxiliary tool provided in this application adopts the following technical solution:

[0006] A quick-opening blind plate auxiliary tool includes:

[0007] The mounting ring can be detachably installed at the front end of the cylinder flange;

[0008] A rotating ring is coaxially mounted on an mounting ring, and the rotating ring is sleeved on the outer peripheral wall of the arc surface of the cylinder flange;

[0009] The tightening bolts are elastically connected to the rotating ring and are threaded into the bolt holes on the cylinder flange; and

[0010] The impact rod is movably connected to the rotating ring and is fitted into the bolt holes on the cylinder flange.

[0011] Furthermore, the outer wall of the rotating ring arc surface is provided with a plurality of openings extending radially therethrough, one of which is used to insert the impact rod, and the other openings are used to install the tightening bolts.

[0012] Furthermore, the number of openings is consistent with the number of bolt holes on the cylinder flange.

[0013] Furthermore, a limiting ring is fixedly connected to the outer peripheral wall of the rotating ring corresponding to the opening. A limiting ring is coaxially rotatably provided on the limiting ring. The head of the tightening bolt is elastically connected to the limiting ring, and the rod passes through the limiting ring, the limiting ring, and the opening.

[0014] Furthermore, a spring is fitted onto the rod of the tightening bolt, with one end of the spring fixedly connected to the limiting ring and the other end fixedly connected to the cap of the tightening bolt.

[0015] Furthermore, an annular protrusion is fixedly connected to the inner circumference of the rotating ring arc surface, and an annular groove is provided on the outer circumference of the mounting ring arc surface to slide and adapt to the annular protrusion. The rotating ring achieves a rotational connection on the mounting ring by sliding the annular protrusion in the annular groove.

[0016] Furthermore, multiple mounting plates are fixedly connected to the mounting ring, and the mounting plates are provided with fastening elements for fastening the mounting ring to the end face of the cylinder flange.

[0017] Furthermore, the fastening element includes:

[0018] A fixing plate is arranged parallel to the mounting plate;

[0019] A fixing bolt, one end of which is fixed to the fixing plate and the other end of which passes through the free end of the mounting plate; and

[0020] A fixing nut is threaded onto the fixing bolt;

[0021] The distance between the free ends of the two fixed plates that are set opposite each other is greater than the outer diameter of the blind flange cylinder and less than the outer diameter of the cylinder flange.

[0022] Furthermore, a rubber sleeve is fixed to the outer wall of one end of the impact rod, and the rubber sleeve is adapted to the opening by interference fit.

[0023] Furthermore, the impact rod is connected to an anti-loss rope, the other end of which is connected to the mounting ring.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The auxiliary tool of this application utilizes the set screw hole of the quick-opening blind plate. Through the cooperation of the tightening bolt and the impact rod, it can eliminate the locking ring jamming and sticking, making it easy to open the difficult-to-open quick-opening blind plate. The effect is good and the service life of the equipment is extended.

[0026] 2. The auxiliary tool of this application uses a spring to restrict the tightening bolt, ensuring that the tightening bolt is always on the rotating ring. It can rotate with the rotating ring to promptly move the position to be struck to the impact rod, thereby unlocking the rusted locking ring. Furthermore, the limiting ring and limiting ring connect the tightening bolt to the rotating ring, eliminating the need to individually remove and tighten each bolt. The impact rod also requires no manual support, as the angle is limited by the opening on the rotating ring.

[0027] 3. The auxiliary tool of this application can prevent the impact rod from falling off when the rotating ring rotates by setting a rubber sleeve or connecting rope at one end of the impact rod. When in use, simply insert the other end into the bolt hole, which facilitates the operation and storage of the impact rod. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the locking ring quick-opening blind flange, which is the background technology of this application.

[0030] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 3 This is an exploded structural diagram of an embodiment of this application;

[0032] Figure 4 This is a structural schematic diagram from another perspective of an embodiment of this application.

[0033] Figure label:

[0034] 1. Install ring;

[0035] 2. Rotating ring; 21. Opening;

[0036] 31. Tightening bolt; 32. Limiting ring; 33. Limiting ring; 34. Spring;

[0037] 4. Impact rod;

[0038] 51. Mounting plate; 52. Fixing plate; 53. Fixing bolts; 54. Fixing nuts;

[0039] 61. Cylinder flange; 62. Bolt hole; 63. Blind flange cylinder. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0041] Reference Figure 2 , Figure 3 and Figure 4 This application discloses a quick-opening blind plate auxiliary tool, which includes:

[0042] Mounting ring 1 is detachably mounted on the front end of flange 61 of blind flange body 63.

[0043] Rotating ring 2 is coaxially rotatably mounted on mounting ring 1, and rotating ring 2 is sleeved on the outer peripheral wall of the arc surface of cylinder flange 61; specifically, an annular protrusion is fixedly connected to the inner peripheral side of the arc surface of rotating ring 2, and an annular groove that slides and adapts to the annular protrusion is opened on the outer peripheral side of the arc surface of mounting ring 1. Rotating ring 2 achieves rotational connection on mounting ring 1 by sliding the annular protrusion in the annular groove.

[0044] Tightening bolt 31 is elastically connected to rotating ring 2 and is threaded to bolt hole 62 on cylinder flange 61.

[0045] The impact rod 4 is movably connected to the rotating ring 2 and is fitted into the bolt hole 62 on the cylinder flange 61.

[0046] Specifically, the outer wall of the rotating ring 2 has multiple openings 21 extending radially through it. The number of openings 21 is the same as the number of bolt holes 62 on the cylinder flange 61. An impact rod 4 is inserted into one of the openings 21, and a tightening bolt 31 is installed in the other openings 21.

[0047] Furthermore, a limiting ring 32 is fixedly connected to the outer peripheral wall of the rotating ring 2 corresponding to the opening 21. A limiting ring 33 is coaxially rotatably mounted on the limiting ring 32. The cap of the tightening bolt 31 is elastically connected to the limiting ring 33, and the rod passes through the limiting ring 33, the limiting ring 32, and the opening 21. A spring 34 is sleeved on the rod of the tightening bolt 31. One end of the spring 34 is fixedly connected to the limiting ring 33, and the other end is fixedly connected to the cap of the tightening bolt 31.

[0048] Therefore, if the locking ring is found to be severely stuck when preparing to open the blind flange, a copper hammer can be used to strike the impact rod 4 to impact the corresponding bolt hole 62, and then the remaining parts can be tightened by turning multiple tightening bolts 31. If it is found that a certain tightening bolt 31 cannot be lowered to the bottom, all the tightening bolts 31 should be loosened, and then the rotating ring 2 should be rotated so that the impact rod 4 moves to the position where the tightening bolt 31 cannot be lowered to the bottom. Then the remaining tightening bolts 31 should be turned again, and then the impact rod 4 should be struck. The impact rod 4 strikes this position, thereby causing the locking ring to fall back into the groove, thus unlocking the device.

[0049] The auxiliary tool of this application uses a spring 34 to restrict the tightening bolt 31, ensuring that the tightening bolt 31 is always on the rotating ring 2. This allows it to rotate with the rotating ring 2, promptly moving the position to be struck to the impact rod 4, thereby unlocking the rusted locking ring. Furthermore, the limiting ring 32 and limiting ring 33 connect the tightening bolt 31 to the rotating ring 2, eliminating the need to individually remove and tighten each bolt. The impact rod 4 also requires no manual support, as the angle is limited by the opening 21 on the rotating ring 2.

[0050] In addition, to facilitate the use of the auxiliary tools of this application on different blind plates, refer to Figure 2 , Figure 3 and Figure 4 Multiple mounting plates 51 are fixedly connected to the mounting ring 1. Each mounting plate 51 is equipped with fastening elements for securing the mounting ring 1 to the end face of the cylinder flange 61. The fastening elements include:

[0051] The fixing plate 52 is set parallel to the mounting plate 51;

[0052] The fixing bolt 53 has one end fixed to the fixing plate 52 and the other end passing through the free end of the mounting plate 51.

[0053] The fixing nut 54 is threaded onto the fixing bolt 53;

[0054] The distance between the free ends of the two fixed plates 52 that are set opposite to each other is greater than the outer diameter of the blind flange cylinder 63 and less than the outer diameter of the cylinder flange 61.

[0055] Therefore, whenever this application is used on a blind flange, the fixing nut 54 can be loosened first, and the fixing ring and rotating ring 2 can be fitted onto the end of the flange 61 of the blind flange body 63. Then, the fixing bolt 53 can be rotated so that the fixing plate 52 rotates to the back of the flange 61. Then, the fixing nut 54 can be tightened so that the fixing plate 52 is fastened to the back of the flange 61, thereby fixing the fixing ring, facilitating the rotation of the rotating ring 2, and the operation of the tightening bolt 31 and the impact rod 4.

[0056] To prevent the impact bar 4 from falling off when not in use.

[0057] In one feasible embodiment, a rubber sleeve is fixed to the outer wall of one end of the impact rod 4, and the rubber sleeve is interference-fitted to the opening 21. Thus, the flexible clamping effect of the rubber sleeve prevents the impact rod 4 from falling off when the rotating ring 2 is rotated. When the impact rod 4 needs to be used for striking, it can be flipped so that the end of the impact rod 4 without the fixed rubber sleeve is inserted into the bolt hole 62, which facilitates the operation and storage of the impact rod 4.

[0058] In another feasible embodiment, the impact rod 4 is connected to an anti-loss rope, the other end of which is connected to the mounting ring 1. This also prevents the accidental loss of the impact rod 4, ensuring that all tools are available during operation.

[0059] The implementation principle of a quick-opening blind flange auxiliary tool according to an embodiment of this application is as follows:

[0060] When attempting to open the blind flange, if the locking ring is found to be severely jammed, a copper hammer can be used to strike the impact rod 4 into the corresponding bolt hole 62. Then, tighten the remaining parts by turning multiple tightening bolts 31. If a tightening bolt 31 fails to descend to the bottom at a certain position, loosen all the tightening bolts 31, then rotate the rotating ring 2 until the impact rod 4 moves to the position where the tightening bolt 31 cannot descend to the bottom. Then, turn the remaining tightening bolts 31 again and strike the impact rod 4. This will cause the locking ring to fall back into the groove, thus unlocking the device.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-opening blind flange auxiliary tool, characterized in that, include: The mounting ring can be detachably installed on the front end of the blind flange body flange. A rotating ring is coaxially mounted on an mounting ring, and the rotating ring is sleeved on the outer peripheral wall of the arc surface of the cylinder flange; The tightening bolts are elastically connected to the rotating ring and are threaded into the bolt holes on the cylinder flange; and The impact rod is movably connected to the rotating ring and is fitted into the bolt holes on the cylinder flange.

2. The quick-opening blind flange auxiliary tool according to claim 1, characterized in that, The outer wall of the rotating ring arc surface has multiple openings extending radially therethrough, one of which is used to insert the impact rod, and the other openings are used to install the tightening bolts.

3. The quick-opening blind flange auxiliary tool according to claim 2, characterized in that, The number of openings is the same as the number of bolt holes on the cylinder flange.

4. The quick-opening blind flange auxiliary tool according to claim 2, characterized in that, A limiting ring is fixed to the outer peripheral wall of the rotating ring corresponding to the opening. A limiting ring is coaxially rotatably mounted on the limiting ring. The head of the tightening bolt is elastically connected to the limiting ring. The rod passes through the limiting ring, the limiting ring, and the opening.

5. The quick-opening blind flange auxiliary tool according to claim 4, characterized in that, A spring is fitted onto the rod of the tightening bolt, with one end of the spring fixedly connected to the limiting ring and the other end fixedly connected to the cap of the tightening bolt.

6. The quick-opening blind flange auxiliary tool according to claim 1, characterized in that, The inner circumference of the rotating ring arc surface is fixed with an annular protrusion, and the outer circumference of the mounting ring arc surface is provided with an annular groove that slides and adapts to the annular protrusion. The rotating ring achieves a rotational connection on the mounting ring by sliding the annular protrusion in the annular groove.

7. The quick-opening blind flange auxiliary tool according to claim 1, characterized in that, Multiple mounting plates are fixedly connected to the mounting ring, and the mounting plates are provided with fastening elements for fastening the mounting ring to the end face of the cylinder flange.

8. The quick-opening blind flange auxiliary tool according to claim 7, characterized in that, The fastening element includes: A fixing plate is arranged parallel to the mounting plate; A fixing bolt, one end of which is fixed to the fixing plate and the other end of which passes through the free end of the mounting plate; and A fixing nut is threaded onto the fixing bolt; The distance between the free ends of the two fixed plates that are set opposite each other is greater than the outer diameter of the blind flange cylinder and less than the outer diameter of the cylinder flange.

9. The quick-opening blind flange auxiliary tool according to claim 2, characterized in that, A rubber sleeve is fixed to the outer wall of one end of the impact rod, and the rubber sleeve is adapted to the opening by interference fit.

10. The quick-opening blind flange auxiliary tool according to claim 1, characterized in that, The impact rod is connected to an anti-loss rope, and the other end of the anti-loss rope is connected to the mounting ring.

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