Sealing anti-seepage structure of fire valve

Abstract

The utility model discloses a sealing anti-leakage structure of a fire-fighting valve, which comprises a valve body and a flange connecting pipe, and further comprises a re-locking mechanism, the re-locking mechanism is arranged at the flange connecting pipe of the valve body and a fire-fighting pipeline to form the anti-leakage structure, and the re-locking mechanism is connected with the valve body through an outer adding ring at the valve body. The semicircular cover hoop A and the semicircular cover hoop B which are arranged at the flange connecting pipe and provided with the semicircular opposite-ring pieces are matched with the combination of the T-shaped inserting plates and the surface-lacking clamping columns to form a triple locking mechanism, the semicircular cover hoops are fixed to the flange connecting pipe through bolts and provide basic constraint, and the T-shaped inserting plates penetrate through the externally-added rings and the inserting grooves of the semicircular opposite-ring pieces to reinforce circumferential fastening. The flange plate is clamped and pressed by the surface-lacking clamping column and is matched with the T-shaped magnetic block for magnetic attraction positioning, so that the insertion plate is prevented from falling off, stable connection is still kept under long-term vibration, and firm locking and effective leakage prevention of the valve body and the flange connecting pipe are greatly guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting valve technical field, especially a kind of sealing anti-leakage structure of fire fighting valve. BACKGROUND

[0002] Fire fighting valve is an important accessory controlled on industrial, building pipeline, it is mainly composed of valve body, opening and closing mechanism, valve cover, with simple structure, sealing reliable characteristics, fire fighting valve has multiple types, including but not limited to fire gate valve, butterfly valve, automatic exhaust valve, automatic pressure relief valve, alarm valve group, safety valve etc., the application of these valves in fire fighting system is very critical, because they can effectively control the flow of water or other fire extinguishing medium in emergency, to protect personnel and property safety.

[0003] Currently, when gate valve is used for fire fighting valve, the flange plate at both ends of valve body is usually connected with pipeline by flange, but this flange connection position is prone to looseness between flanges due to the influence of factors such as fluctuation of medium pressure in pipeline, temperature change and vibration after long-term use, thereby causing leakage problem of sealing failure at gate valve, and these leakage will affect the liquid delivery pressure of gate valve in fire fighting, therefore, we propose a sealing anti-leakage structure of fire fighting valve. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a sealing anti-leakage structure of fire fighting valve, which is composed of a locking mechanism at the flange connection of the valve body and the fire fighting pipeline, the locking mechanism is provided with an outer ring at the valve body, and a semicircular cover hoop A and a semicircular cover hoop B provided with semicircular ring pieces at the flange connection, a T-shaped plugboard and a missing surface clamping column are combined to form a triple locking mechanism, the semicircular cover hoop is fixed to the flange connection by bolts to provide basic constraint, the T-shaped plugboard is inserted into the outer ring and the semicircular ring piece slot to strengthen the circumferential fastening, the missing surface clamping column clamps the flange plate and cooperates with the T-shaped magnetic block to magnetically attract and position, preventing the plugboard from coming out, ensuring stable connection under long-term vibration, greatly ensuring the firm locking and effective anti-leakage of the valve body and the flange connection, and after the locking mechanism is firmly locked and loosened between the valve body and the flange connection, the problem of fire fighting water pressure drop caused by leakage can be effectively avoided, the liquid delivery stability during fire is ensured, the reliability of fire fighting system is strengthened, the potential risk caused by sealing failure is reduced, and the problems in the background technology can be effectively solved.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a sealing anti -leak structure of fire -fighting valve, including valve body and flange continuous pipe, further include complex locking mechanism, the outward ring, semicircle cover hoop A, semicircle cover hoop B, semicircle pair of ring piece, T -shaped insert board, faceless clamping column, T -shaped fixed block and T -shaped magnetic block, the flange plate outer wall of valve body is welded with outward ring, and the outward ring surface annular distribution is seted up with main slot, the pipe body of flange continuous pipe is symmetrically clamped with semicircle cover hoop A and semicircle cover hoop B, and the cover body outside semicircle cover hoop A and semicircle cover hoop B is opposite and welded with semicircle pair of ring piece, the surface of semicircle pair of ring piece is seted up with vice slot, and vice slot is inserted with T -shaped insert board between main slot, the surface recess of T -shaped insert board is seted up with recess guide groove, and the slot wall of recess guide groove is seted up with the insertion hole for inserting faceless clamping column close to the flange plate of valve body one end, and faceless clamping column is clamped in the flange plate of valve body, the top of faceless clamping column is welded with T -shaped fixed block for clamping recess guide groove, and T -shaped fixed block is clamped with T -shaped magnetic block for magnetically attracting T -shaped insert board.

[0007] Further, the cover body outside semicircle cover hoop A and semicircle cover hoop B is symmetrically welded with surface hole plate, and the surface hole plate between semicircle cover hoop A and semicircle cover hoop B is screwed out with nut;

[0008] By adopting the above technical scheme, after semicircle cover hoop A and semicircle cover hoop B are symmetrically covered on the pipe body of flange continuous pipe, the surface hole plate of semicircle cover hoop A and semicircle cover hoop B can be screwed out with nut, so as to lock semicircle cover hoop A and semicircle cover hoop B on the outside of flange continuous pipe.

[0009] Further, the inner hoop surface of semicircle cover hoop A and semicircle cover hoop B is bonded with semicircle pair of rubber pads for clamping the rear pipe body of flange continuous pipe, and the surface of semicircle pair of rubber pads is protruded with convex rib;

[0010] By adopting the above technical scheme, semicircle cover hoop A and semicircle cover hoop B can be firmly pressed against the rear pipe body of flange continuous pipe with the semicircle pair of rubber pads protruded on the surface.

[0011] Further, the block body of T-shaped fixed block is seted up with T-shaped fixed groove below, and T-shaped magnetic block is clamped and bonded in T-shaped fixed groove;

[0012] By adopting the above technical scheme, T-shaped fixed block clamps and bonds T-shaped magnetic block with T-shaped fixed groove, so that T-shaped fixed block can be magnetically attracted and positioned at T-shaped insert board by T-shaped magnetic block.

[0013] Further, the main slot of outward ring surface is seted up with three groups, and the surface of semicircle pair of ring piece of semicircle cover hoop A and semicircle cover hoop B is symmetrically seted up with three groups of groove bodies of vice slot;

[0014] By adopting the technical scheme, the three groups of T-shaped plug-in plates can be inserted into the three groups of main plug-in slots at the half-circle ring piece of the half-circle cover hoop A and the half-circle cover hoop B through the three groups of auxiliary plug-in slots, three groups of locking structures are formed, the half-circle ring piece and the outer increasing ring are locked, and the flange connecting pipe and the valve body can be additionally locked.

[0015] Further, the column body of the face-lacking clamping column is provided with a recessed face, and the recessed face of the face-lacking clamping column is clamped and pressed at the flange plate of the valve body;

[0016] By adopting the technical scheme, the face-lacking clamping column can be clamped and pressed at the flange plate of the valve body through the recessed face, when the T-shaped plug-in plate is forced to move backward and leave the main plug-in slot, the face-lacking clamping column can be firmly clamped and pressed at the flange plate of the valve body to obtain support, so that the T-shaped plug-in plate is not easy to move backward and leave the main plug-in slot.

[0017] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0018] The utility model discloses a sealing anti-leakage structure of a fire-fighting valve, which comprises a valve body and a flange connecting pipe, and is characterized in that the sealing anti-leakage structure further comprises a double-locking mechanism arranged at the flange connecting pipe of the valve body, wherein the double-locking mechanism comprises an outer increasing ring arranged at the valve body, a half-circle cover hoop A and a half-circle cover hoop B arranged at the flange connecting pipe, a T-shaped plug-in plate and a face-lacking clamping column.

[0019] And after the double-locking mechanism is firmly locked and prevented from loosening between the valve body and the flange connecting pipe, the problem of fire-fighting water pressure drop caused by leakage can be effectively avoided, the stability of liquid delivery during a fire is ensured, the reliability of the fire-fighting system is strengthened, and potential risks caused by sealing failure are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the sealing anti-leakage structure of the fire-fighting valve.

[0021] Figure 2 It is a valve body, a double-locking mechanism and a flange connecting pipe split schematic view of the sealing anti-leakage structure of the fire-fighting valve.

[0022] Figure 3 It is an explosion view of the double-locking mechanism of the sealing anti-leakage structure of the fire-fighting valve.

[0023] Figure 4The T-shaped magnetic block and the T-shaped fixed block of the sealing anti-leakage structure of the fire valve are split apart.

[0024] In the figure: 1, valve body; 2, complex locking mechanism; 3, outer ring; 4, main slot; 5, flange connecting pipe; 6, semicircle cover hoop A; 7, semicircle cover hoop B; 8, semicircle pair of ring pieces; 9, vice slot; 10, T-shaped insertion plate; 11, concave guide groove; 12, insertion hole; 13, missing face clamping column; 14, T-shaped fixed block; 15, T-shaped magnetic block; 16, semicircle pair of rubber pads. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] As shown in Figures 1-4 A sealing anti-leakage structure of a fire valve, comprising a valve body 1 and a flange connecting pipe 5, further comprising a complex locking mechanism 2, the complex locking mechanism 2 comprising an outer ring 3, a semicircle cover hoop A 6, a semicircle cover hoop B 7, a semicircle pair of ring pieces 8, a T-shaped insertion plate 10, a missing face clamping column 13, a T-shaped fixed block 14 and a T-shaped magnetic block 15, the outer wall of the flange plate of the valve body 1 is welded with the outer ring 3, and the surface of the outer ring 3 is annularly distributed with the main slot 4, the pipe body of the flange connecting pipe 5 is symmetrically clamped with the semicircle cover hoop A 6 and the semicircle cover hoop B 7, and the cover body of the semicircle cover hoop A 6 and the semicircle cover hoop B 7 is symmetrically welded with the semicircle pair of ring pieces 8 on the outside, the surface of the semicircle pair of ring pieces 8 is provided with the vice slot 9, and the vice slot 9 and the main slot 4 are inserted with the T-shaped insertion plate 10, the surface of the plate body of the T-shaped insertion plate 10 is recessed and provided with the concave guide groove 11, and the groove wall of the concave guide groove 11 near the flange plate of the valve body 1 is provided with the insertion hole 12 for inserting the missing face clamping column 13, and the missing face clamping column 13 is clamped and pressed at the flange plate of the valve body 1, the top end of the missing face clamping column 13 is welded with the T-shaped fixed block 14 for clamping the concave guide groove 11, and the T-shaped fixed block 14 is clamped with the T-shaped magnetic block 15 for magnetically attracting the T-shaped insertion plate 10.

[0027] Among them, the cover body of the semicircle cover hoop A 6 and the semicircle cover hoop B 7 is symmetrically welded with the surface hole plate, and the surface hole plates between the semicircle cover hoop A 6 and the semicircle cover hoop B 7 are screwed out with nuts;

[0028] By adopting the above technical scheme, after the semicircle cover hoop A 6 and the semicircle cover hoop B 7 are symmetrically covered at the pipe body of the flange connecting pipe 5, the surface hole plates of the semicircle cover hoop A 6 and the semicircle cover hoop B 7 can be screwed out with nuts, so as to lock the semicircle cover hoop A 6 and the semicircle cover hoop B 7 outside the flange connecting pipe 5.

[0029] The inner hoop surface of the semicircular cover hoop A6 and the semicircular cover hoop B7 is bonded with a semicircular rubber pad 16 for clamping the rear pipe body of the flange connecting pipe 5, and the surface of the semicircular rubber pad 16 protrudes with a convex rib;

[0030] By adopting the above technical scheme, the semicircular cover hoop A6 and the semicircular cover hoop B7 can be firmly pressed against the rear pipe body of the flange connecting pipe 5 by the semicircular rubber pad 16 with a convex rib on the surface.

[0031] The block body of the T-shaped block 14 is provided with a T-shaped slot below, and a T-shaped magnetic block 15 is clamped and bonded in the T-shaped slot;

[0032] By adopting the above technical scheme, the T-shaped block 14 clamps and bonds the T-shaped magnetic block 15 through the T-shaped slot, so that the T-shaped block 14 can be magnetically attracted and positioned at the T-shaped plugboard 10 by the T-shaped magnetic block 15.

[0033] The main insertion slot 4 on the surface of the outer reinforcing ring 3 is arranged in three groups, and the surface of the semicircular cover hoop A6 and the semicircular cover hoop B7 is symmetrically provided with three groups of groove bodies of the secondary insertion slot 9;

[0034] By adopting the above technical scheme, the three groups of T-shaped plugboards 10 can be inserted and assembled through the three groups of secondary insertion slots 9 of the semicircular cover hoop A6 and the semicircular cover hoop B7 cooperating with the three groups of main insertion slots 4 of the outer reinforcing ring 3, so as to form three groups of locking structures, thereby locking the semicircular cover hoop A6 and the semicircular cover hoop B7 and the outer reinforcing ring 3, so that the flange connecting pipe 5 and the valve body 1 can be additionally locked.

[0035] The column body of the missing surface clamping column 13 is provided with a concave missing surface, and the concave missing surface of the missing surface clamping column 13 is clamped and pressed on the flange plate of the valve body 1;

[0036] By adopting the above technical scheme, the missing surface clamping column 13 can be clamped and pressed on the flange plate of the valve body 1 through the concave missing surface, so that when the T-shaped plugboard 10 is forced to move backward and leave the main insertion slot 4, the missing surface clamping column 13 can be firmly clamped and pressed on the flange plate of the valve body 1 to obtain support, so that the T-shaped plugboard 10 is not easy to move backward and leave the main insertion slot 4.

[0037] It should be noted that the utility model is a kind of sealing anti-seepage structure of fire valve, and the anti-seepage structure is formed by setting double locking mechanism 2 at the flange connecting pipe 5 of valve body 1 and fire pipeline, the outer ring 3 of double locking mechanism 2 can be welded and fixed outside the flange plate of valve body 1, at this time, after the pipe body of flange connecting pipe 5 is welded at the fire water pipeline, the flange plate of flange connecting pipe 5 can be pressed outside the flange plate of valve body 1, then bolt is used to screw with nut through two sets of flange plates, the flange connection of flange connecting pipe 5 and valve body 1 is realized, then semicircular cover hoop A6 and semicircular cover hoop B7 of double locking mechanism 2 are symmetrically covered at the pipe body of flange connecting pipe 5, so that semicircle pair of ring piece 8 is pressed at the bolt behind the flange plate outside flange connecting pipe 5, and semicircular cover hoop A6 and semicircular cover hoop B7 can be firmly pressed outside the pipe body of flange connecting pipe 5 with semicircle pair of rubber pad 16, then the bolt and nut can be screwed from the surface hole plate of semicircular cover hoop A6 and semicircular cover hoop B7, so as to lock semicircular cover hoop A6 and semicircular cover hoop B7 outside flange connecting pipe 5, at this time, T-shaped plug plate 10 can be inserted from the auxiliary insertion slot 9 of semicircle pair of ring piece 8 to the main insertion slot 4 of outer ring 3, then the lack of face clamping column 13 below T-shaped fixed block 14 is inserted into the insertion hole 12 of T-shaped plug plate 10, so that the concave face of lack of face clamping column 13 can be clamped on the flange plate of valve body 1, and the T-shaped magnetic block 15 of T-shaped fixed block 14 can be magnetically absorbed in the recessed guide slot 11 of T-shaped plug plate 10, when valve body 1 and flange connecting pipe 5 are subjected to vibration and pressure, the concave face of lack of face clamping column 13 can be clamped on the flange plate of valve body 1, when T-shaped plug plate 10 is forced to move backward and leave the main insertion slot 4, the lack of face clamping column 13 can be firmly clamped on the flange plate of valve body 1 to obtain support, so that T-shaped plug plate 10 is not easy to move backward and leave the main insertion slot 4, so as to realize the additional locking of valve body 1 and flange connecting pipe 5, prevent the flange plate between valve body 1 and flange connecting pipe 5 from leaking due to loosening, the convex rib design of semicircle pair of rubber pad 16 enhances the friction force with pipeline, adapts to thermal expansion and cold shrinkage, the combination of T-shaped magnetic block 15 and lack of face clamping column 13 allows small displacement buffering, avoids stress concentration caused by rigid connection, and keeps sealing restraint at the same time;

[0038] After the lack of face clamping column 13 is pulled out of the insertion hole 12 of T-shaped plug plate 10, T-shaped plug plate 10 can be pulled out from the main insertion slot 4 and auxiliary insertion slot 9, then the bolt and nut of semicircular cover hoop A6 and semicircular cover hoop B7 are unscrewed, at this time, the bolt and nut between valve body 1 and flange connecting pipe 5 can be normally unscrewed, so that valve body 1 and flange connecting pipe 5 can be disassembled.

[0039] It should be noted that the utility model is a kind of sealing anti-seepage structure of fire valve, and the anti-seepage structure is formed by setting double locking mechanism 2 at the flange connecting pipe 5 of valve body 1 and fire pipeline, the outer ring 3 of double locking mechanism 2 can be welded and fixed outside the flange plate of valve body 1, at this time, after the pipe body of flange connecting pipe 5 is welded at the fire water pipeline, the flange plate of flange connecting pipe 5 can be pressed outside the flange plate of valve body 1, then bolt is used to screw with nut through two sets of flange plates, the flange connection of flange connecting pipe 5 and valve body 1 is realized, then semicircular cover hoop A6 and semicircular cover hoop B7 of double locking mechanism 2 are symmetrically covered at the pipe body of flange connecting pipe 5, so that semicircle pair of ring piece 8 is pressed at the bolt behind the flange plate outside flange connecting pipe 5, and semicircular cover hoop A6 and semicircular cover hoop B7 can be firmly pressed outside the pipe body of flange connecting pipe 5 with semicircle pair of rubber pad 16, then the bolt and nut can be screwed from the surface hole plate of semicircular cover hoop A6 and semicircular cover hoop B7, so as to lock semicircular cover hoop A6 and semicircular cover hoop B7 outside flange connecting pipe 5, at this time, T-shaped plug plate 10 can be inserted from the auxiliary insertion slot 9 of semicircle pair of ring piece 8 to the main insertion slot 4 of outer ring 3, then the lack of face clamping column 13 below T-shaped fixed block 14 is inserted into the insertion hole 12 of T-shaped plug plate 10, so that the concave face of lack of face clamping column 13 can be clamped on the flange plate of valve body 1, and the T-shaped magnetic block 15 of T-shaped fixed block 14 can be magnetically absorbed in the recessed guide slot 11 of T-shaped plug plate 10, when valve body 1 and flange connecting pipe 5 are subjected to vibration and pressure, the concave face of lack of face clamping column 13 can be clamped on the flange plate of valve body 1, when T-shaped plug plate 10 is forced to move backward and leave the main insertion slot 4, the lack of face clamping column 13 can be firmly clamped on the flange plate of valve body 1 to obtain support, so that T-shaped plug plate 10 is not easy to move backward and leave the main insertion slot 4, so as to realize the additional locking of valve body 1 and flange connecting pipe 5, prevent the flange plate between valve body 1 and flange connecting pipe 5 from leaking due to loosening, the convex rib design of semicircle pair of rubber pad 16 enhances the friction force with pipeline, adapts to thermal expansion and cold shrinkage, the combination of T-shaped magnetic block 15 and lack of face clamping column 13 allows small displacement buffering, avoids stress concentration caused by rigid connection, and keeps sealing restraint at the same time;

[0040] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for preventing leakage of a fire valve, comprising a valve body (1) and a flange connecting pipe (5), characterized in that: Also include the complex lock mechanism (2), the complex lock mechanism (2) includes outwardly increasing ring (3), half-round cover hoop A (6), half-round cover hoop B (7), half-round pair of ring pieces (8), T-shaped insert plate (10), missing face card column (13), T-shaped fixed block (14) and T-shaped magnetic block (15), the flange plate outer wall of the valve body (1) is welded with the outer increasing ring (3), and the outer surface of the outer increasing ring (3) is provided with a main slot (4) in a ring shape, the pipe body of the flange connecting pipe (5) is symmetrically clamped with half-round cover hoop A (6) and half-round cover hoop B (7), and the cover body outside of half-round cover hoop A (6) and half-round cover hoop B (7) is welded with half-round pair of ring pieces (8) in opposition, the surface of the half-round pair of ring pieces (8) is provided with a secondary slot (9), and the secondary slot (9) and the main slot (4) are inserted with a T-shaped insert plate (10), the surface of the plate body of the T-shaped insert plate (10) is recessed to form a recessed guide groove (11), and the slot wall near the flange plate end of the valve body (1) is provided with a hole (12) for inserting the missing face card column (13), and the missing face card column (13) is clamped at the flange plate of the valve body (1), the top end of the missing face card column (13) is welded with a T-shaped fixed block (14) for clamping the recessed guide groove (11), and the T-shaped fixed block (14) is clamped with a T-shaped magnetic block (15) for magnetically attracting the T-shaped insert plate (10).

2. A fire valve seal according to claim 1, wherein: The cover body outside of the half-round cover hoop A (6) and the half-round cover hoop B (7) is symmetrically welded with a surface hole plate, and the surface hole plates of the half-round cover hoop A (6) and the half-round cover hoop B (7) are bolted out and screwed with nuts.

3. The fire valve sealing structure according to claim 1, wherein: The inner hoop surface of the half-round cover hoop A (6) and the half-round cover hoop B (7) is bonded with a half-round pair of rubber pads (16) for clamping the rear pipe body of the flange connecting pipe (5), and the surface of the half-round pair of rubber pads (16) is protruded with a convex rib.

4. The fire valve sealing structure according to claim 1, wherein: The block body of the T-shaped fixed block (14) is provided with a T-shaped fixed groove below, and the T-shaped fixed groove is clamped and bonded with a T-shaped magnetic block (15).

5. The fire valve according to claim 1, wherein: Three groups of main slots (4) are arranged on the surface of the outer increasing ring (3), and three groups of groove bodies of the secondary slots (9) are symmetrically provided on the surface of the half-round pair of ring pieces (8) of the half-round cover hoop A (6) and the half-round cover hoop B (7).

6. The fire valve sealing structure according to claim 1, wherein: The column body of the missing face card column (13) is provided with a recessed face, and the recessed face of the missing face card column (13) is clamped at the flange plate outside of the valve body (1).

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