Automatic adjusting fire valve

Abstract

The invention belongs to the technical field of fire fighting, and particularly relates to an automatic adjusting fire fighting valve which comprises a valve body, a valve plate and a valve rod, the valve body is connected with the valve rod and the valve plate through bolts, and the automatic adjusting fire fighting valve is characterized in that a rotating part used for fixing the valve rod is arranged at the position, connected with the valve rod, outside the valve body; a fixing rod is arranged in the middle, away from the valve plate, of the valve body, a first connecting piece and a second connecting piece which are used for sealing the valve body are rotatably connected to the outside of the fixing rod, and first sealing rings abutting against the first connecting piece and the second connecting piece are arranged on the two sides, located on the fixing rod, in the valve body. By means of the arrangement, when the interior of the valve plate needs to be maintained, the valve plate can be directly disassembled and maintained without closing a main switch, and the situation that water leakage is caused when the main switch is not closed is avoided; and secondly, the situation that other pipeline valves cannot be used due to the fact that the main switch is closed is avoided.

Description

Technical Field

[0001] The invention discloses a fire-fighting valve, in particular to an automatic regulating fire-fighting valve. Background Art

[0002] Valves generally act on gas, liquid and other transportation pipelines, and their function is to open, close and regulate. Existing valves include gate valves, check valves, ball valves and butterfly valves, and different valves have different advantages. Valves are widely used and the type of valve to be used is selected according to different situations. At the same time, with the progress of life and the development of science and technology, valves are automatically opened and closed by using sensors and other devices to achieve the effect of automation. Pipeline fire protection facilities also use a variety of valves, and through sensors and controllers, it is more convenient to achieve one-button drive automatic adjustment and opening and closing.

[0003] However, no matter whether it is an automatic or manual valve, a certain degree of wear will occur under long-term use. The valve plate and valve stem in the valve will directly contact the liquid or gas, which may easily cause the valve plate and the valve plate to be corroded and loose and unable to drive, or the valve plate to be corroded and worn, resulting in a gap between the valve plate and the inner wall of the valve body, resulting in insufficient sealing and leakage. Therefore, maintenance is often required. However, existing valves are generally fixed with bolts and nuts, so they need to be disassembled one by one for maintenance. In the fire protection pipeline, if one of the valves is damaged and repaired, the middle gate needs to be closed to avoid the water continuing to flow due to the valve being disassembled during maintenance, so as to avoid the water flowing, thus causing all the pipelines to be closed. Therefore, when encountering sudden situations and other pipelines need to continue to flow water, it will affect the use of other pipelines. Therefore, a new solution is proposed, so that the valve use of other pipelines will not be affected during maintenance, and maintenance can be performed without closing the main gate. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic regulating fire valve in order to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic regulating fire valve, comprising a valve body, a valve plate and a valve stem, wherein the valve body is connected to the valve stem and the valve plate by bolts, a rotating member for fixing the valve stem is provided outside the valve body at the connection with the valve stem, a rotating wheel is rotatably connected to the valve body, a fixing rod is provided at the middle of the valve body away from the valve plate, a connecting piece 1 and a connecting piece 2 for closing the valve body are rotatably connected outside the fixing rod, a sealing ring 1 abutting against the connecting piece 1 and the connecting piece 2 is provided inside the valve body at both sides of the fixing rod, an adjusting component for driving the connecting piece 1 and the connecting piece 2 to rotate relative to each other is provided inside the fixing rod, and a driving component is provided on the rotating member and the rotating wheel; The driving assembly includes a protrusion disposed on the rotating member for blocking the rotation of the rotating wheel, an abutment block abutting against the protrusion is disposed on the rotating wheel, a torsion spring is disposed between the rotating wheel and the valve body, a driving rod is disposed in the fixing rod, a connecting rope is disposed between the rotating wheel and the driving rod, two ends of the connecting rope are respectively wound around the rotating wheel and the driving rod, and a groove for accommodating the winding of the connecting rope is disposed on the rotating wheel; The adjustment assembly includes a bevel tooth 1 that is clamped on the driving rod, a bevel tooth 2 is meshed with the lower end of the bevel tooth in the fixed rod, and the bevel tooth 2 is rotatably connected to the fixed rod, a support rod opposite to the driving rod is provided in the fixed rod, and a bevel tooth 3 that is meshed with the bevel tooth 2 is clamped on the upper end of the support rod, the driving rod is connected to the connecting piece 1, and the support rod is connected to the connecting piece 2.

[0006] Preferably, washers connected to the first connecting piece and the second connecting piece are provided on the driving rod and the supporting rod, and guide grooves for guiding the movement of the first connecting piece and the second connecting piece are provided at the upper and lower ends of the fixing rod.

[0007] Preferably, the rotating wheel and the rotating member are provided with half gears meshing with each other, a second torsion spring is provided between the driving rod and the fixed rod, and the elastic force of the first torsion spring is greater than the elastic force of the second torsion spring.

[0008] Preferably, sealing ring 2 is provided at the rear end of connecting piece 1 and connecting piece 2. Sealing ring 2 is slidably connected to the inner wall of the valve body. The inner wall of the valve body is provided with a sliding groove to guide the movement of sealing ring 2. A slider embedded in the sliding groove is provided on sealing ring 2.

[0009] Preferably, a spring 1 for pushing the slider is provided in the slide groove, a blocking block for blocking the slider from moving is provided in the slide groove, and a pushing block for pushing the blocking block backward and abutting against the valve body is provided on the connecting piece 1 and the connecting piece 2.

[0010] Preferably, the surface of the blocking block abutting against the valve body is an arc surface, and the surface abutting against the sliding block is a vertical surface, and a second spring is provided between the blocking block and the valve body.

[0011] Preferably, the slider is provided with a closing plate slidably connected to the valve body.

[0012] Preferably, a connecting piece is provided on one side of the sliding block connected to the spring, and a winding piece for winding up the connecting piece is rotatably connected to the outside of the valve body.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The first is that the rotating part is rotated during disassembly, and the convex block cancels the obstruction of the abutment block, and at the same time, the half gears mesh with each other, the rotating wheel rotates, and the connecting rope is pulled and reeled, and the driving rod is driven to rotate, so that the driving rod drives the bevel tooth one to rotate at the same time, and drives the meshing bevel tooth two to rotate, so that the bevel tooth two drives the meshing bevel tooth three, and the rotation direction of the bevel tooth three is opposite to that of the bevel tooth one, thereby the support rod rotates, and at the same time, the rotation of the support rod and the driving rod will drive the gasket to drive the connecting piece one and the connecting piece two to rotate, so that the connecting piece one and the connecting piece two rotate and abut against the sealing ring one, so as to close the front end of the valve, so that the liquid in the pipeline cannot reach the valve plate, and the valve plate can be disassembled by bolts and the like to repair the inside, and it can be directly disassembled and repaired without closing the main gate, so as to avoid the situation that the main gate is not closed and causes water leakage. Secondly, it also avoids the situation that other pipeline valves cannot be used due to closing the main gate; Secondly, when the connecting piece 1 and the connecting piece 2 rotate, the pushing block will be driven to move and abut against the end of the blocking block away from the slider, and the blocking block will be driven to move and abut against the valve body in the slide groove and compress the blocking block backward to cancel the blocking of the slider, so that the slider can be pushed forward by the spring 1 and drive the sealing ring 2 to move and fit on the connecting piece 1 and the connecting piece 2, thereby strengthening the sealing effect and reducing the leakage of liquid. Thirdly, after the maintenance and disassembly, the rotating part is reinstalled and reversed, and the rotating wheel is driven to reset by re-engaging the half gear, the tension on the connecting rope is cancelled so that the tension on the driving rod disappears, and the torsion spring 2 pushes the driving rod to reset, and the bevel tooth 1 is driven to reverse and the meshed bevel tooth 2 is driven and the bevel tooth 3 is driven to rotate, so that the connecting piece 1 and the connecting piece 2 are driven to reset and reopen. At the same time, when the installation is completed, the winding part is rotated first so that the winding part rewinds the connected connecting piece and pulls the slider to reset, and the spring 1 is compressed again and the sealing ring 2 is reset to cancel the obstruction of the connecting piece 1 and the connecting piece 2, so that the connecting piece 1 and the connecting piece 2 are reset and opened, so as to ensure that the valve can be reused after being repaired and used normally, and all components are reset to ensure that there will be no leakage during the next maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an automatic regulating fire valve; Figure 2 It is a structural schematic diagram of an automatic regulating fire valve drive assembly; Figure 3 A schematic diagram of the internal structure of an automatic fire-fighting valve Figure 1 ; Figure 4 A schematic diagram of the internal structure of an automatic fire-fighting valve Figure 2 ; Figure 5 for Figure 4 A local enlarged schematic diagram at point A; Figure 6 for Figure 4 A local enlarged schematic diagram at B; Figure 7 for Figure 4 A local enlarged schematic diagram at C; Figure 8 The present invention is a structural schematic diagram of an automatic fire valve regulating component.

[0015] 1. Valve body; 2. Valve plate; 3. Valve stem; 4. Rotating member; 5. Rotating wheel; 6. Fixed rod; 7. Connecting plate 1; 8. Connecting plate 2; 9. Sealing ring 1; 10. Bump; 11. Abutment block; 12. Torsion spring 1; 13. Driving rod; 14. Connecting rope; 15. Groove; 16. Bevel tooth 1; 17. Bevel tooth 2; 18. Support rod; 19. Bevel tooth 3; 20. Washer; 21. Guide groove; 22. Half gear; 23. Torsion spring 2; 24. Sealing ring 2; 25. Slide groove; 26. Sliding block; 27. Spring 1; 28. Blocking block; 29. ​​Pushing block; 30. Spring 2; 31. Closing plate; 32. Connecting member; 33. Winding member. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] An automatic regulating fire valve, such as Figure 1-Figure 8As shown, it comprises a valve body 1, a valve plate 2 and a valve stem 3. The valve body 1 is connected to the valve stem 3 and the valve plate 2 by bolts. A rotating member 4 for fixing the valve stem 3 is provided outside the valve body 1 at the connection with the valve stem 3. A rotating wheel 5 is rotatably connected to the valve body 1. A fixing rod 6 is provided in the middle of the valve body 1 away from the valve plate 2. A connecting piece 1 7 and a connecting piece 2 8 for closing the valve body 1 are rotatably connected outside the fixing rod 6. A sealing ring 1 9 abutting against the connecting piece 1 7 and the connecting piece 2 8 is provided on both sides of the fixing rod 6 in the valve body 1. An adjusting component for driving the connecting piece 1 7 and the connecting piece 2 8 to rotate relative to each other is provided in the fixing rod 6. A driving component is provided on the rotating member 4 and the rotating wheel 5. The driving component comprises a convex block 10 provided on the rotating member 4 for blocking the rotating wheel 5 from rotating. The wheel 5 is provided with an abutment block 11 abutting against the protrusion 10, a driving rod 13 is provided in the fixed rod 6, a connecting rope 14 is provided between the rotating wheel 5 and the driving rod 13, two ends of the connecting rope 14 are respectively wound around the rotating wheel 5 and the driving rod 13, and a groove 15 for accommodating the winding of the connecting rope 14 is provided on the rotating wheel 5. The adjusting component includes an umbrella tooth 16 arranged on the driving rod 13, an umbrella tooth 2 17 is meshed at the lower end of the umbrella tooth 16 in the fixed rod 6, and the umbrella tooth 2 17 is rotatably connected to the fixed rod 6, a support rod 18 opposite to the driving rod 13 is provided in the fixed rod 6, and an umbrella tooth 3 19 meshing with the umbrella tooth 2 17 is clamped at the upper end of the support rod 18, the driving rod 13 is connected to the connecting piece 1 7, and the support rod 18 is connected to the connecting piece 2 8. When the valve is damaged and needs to be repaired, Generally, the main valve is closed first, and then the bolts and other objects at the connection between the valve and the rear pipeline are removed, so as to remove the bolts and other objects at the upper end of the valve, and take out the valve plate 2 and the valve stem 3 for replacement or replace the objects on the inner wall. After using this device, when replacement is needed, the bolts at the connection of the valve stem 3 outside the valve body 1 are removed, and the rotating part 4 is rotated, and the protrusion 10 and the half gear 22 are rotated at the same time, so that the protrusion 10 cancels the obstruction of the abutment block 11 of the rotating wheel 5, and at the same time the half gear 22 on the rotating part 4 is meshed with the half gear 22 on the rotating wheel 5, so that the rotating wheel 5 rotates and reels the connected connecting rope 14 and wraps it around the groove 15, so that the connecting rope 14 pulls down to drive the driving rod 13 to rotate, so that when the driving rod 13 rotates The bevel gear 16 on the bottom of the driving rod 13 is driven to rotate at the same time, and when the bevel gear 16 rotates, the meshing bevel gear 2 17 is driven to rotate, so that the bevel gear 2 17 drives the bevel gear 3 19 to rotate at the same time, ensuring that the support rod 18 in the fixed rod 6 rotates at the same time, thereby driving the washer 20 to rotate through the rotation of the support rod 18 and the driving rod 13, ensuring that the washer 20 drives the connected connecting piece 1 7 and the connecting piece 2 8 to rotate at the same time, and the transmission of the bevel gear 2 17 makes the bevel gear 3 19 rotate in the opposite direction to the bevel gear 1 16, and ensures that the connecting piece 1 7 and the connecting piece 2 8 rotate to both sides and abut against the sealing ring 1 9, thereby achieving the effect of sealing the connection between the pipeline and the valve, avoiding the waste caused by water outflow when maintenance is required, or closing the main gate,In case of special circumstances that affect the continued use of other pipelines, this device can be used to ensure that maintenance does not affect the use of other pipelines and valves.

[0018] A torsion spring 12 is provided between the rotating wheel 5 and the valve body 1, washers 20 connected to the connecting piece 1 7 and the connecting piece 2 8 are provided on the driving rod 13 and the supporting rod 18, guide grooves 21 for guiding the movement of the connecting piece 1 7 and the connecting piece 2 8 are provided at the upper and lower ends of the fixing rod 6, half gears 22 meshing with each other are provided on the rotating wheel 5 and the rotating member 4, a torsion spring 23 is provided between the driving rod 13 and the fixing rod 6, the elastic force of the torsion spring 12 is greater than the elastic force of the torsion spring 23, and at the same time, when the rotating wheel 5 rotates, the torsion spring 12 is relaxed, while the torsion spring 23 is driven to be compressed, thereby ensuring the rotation under the limit of the elastic force of the torsion spring 23 itself. The wheel 5 will not be pulled back to its original position by the torsion spring 23. Secondly, after the connecting piece 1 7 and the connecting piece 2 8 rotate, the gasket 20 can close the fixing rod 6 to prevent the liquid from flowing out along the groove of the fixing rod 6 that accommodates the rotation of the connecting piece 1 7 and the connecting piece 2 8, and the guide groove 21 of the fixing rod 6 is opened with a size equal to the rotation arc of the connecting piece 1 7 and the connecting piece 2 8, so as to ensure that the connecting piece 1 7 and the connecting piece 2 8 can be unfolded to close the guide groove 21. Secondly, the sealing ring 1 9 and the sealing ring 24 can be made of any sealing material in the prior art, and their production can be made as long as the supporting force is set to be stronger, so no further discussion will be made on this.

[0019] The rear ends of the connecting piece 1 7 and the connecting piece 2 8 are provided with a sealing ring 24, and the sealing ring 24 is slidably connected with the inner wall of the valve body 1. The inner wall of the valve body 1 is provided with a slide groove 25 for guiding the movement of the sealing ring 24. The sealing ring 24 is provided with a slider 26 embedded in the slide groove 25. The slide groove 25 is provided with a spring 27 for pushing the slider 26. The slide groove 25 is provided with a blocking block 28 for blocking the movement of the slider 26. The connecting piece 1 7 and the connecting piece 2 8 are provided with a pushing block 29 for pushing the blocking block 28 to move backward and abut against the valve body 1. The surface of the blocking block 28 abutting against the valve body 1 is an arc surface, and abuts against the slider 26. The surface of the valve body 1 is a vertical surface, a spring 230 is provided between the blocking block 28 and the valve body 1, a closing plate 31 slidably connected to the valve body 1 is provided on the slider 26, and a connecting piece 32 is provided on the side of the slider 26 connected to the spring 1 27. A winding piece 33 for winding the connecting piece 32 is rotatably connected to the outside of the valve body 1. After the connecting piece 1 7 and the connecting piece 2 8 are driven to rotate, the pushing block 29 will be rotated at the same time and embedded in the slide groove 25 to abut against the end of the blocking block 28 away from the slider 26, and after continuing to rotate, the blocking block 28 will be pushed backward, so that the blocking block 28 abuts on the slide. The bottom of the groove 25, when the blocking block 28 moves, the end of the blocking block 28 abutting against the slider 26 is elastically set, and after being pulled, it will move backward and abut against the valve body 1, and the blocking block 28 will move backward along the arc surface, so as to cancel the blocking of the slider 26. Because the surface where the blocking block 28 abuts against the slider 26 is a vertical surface, the slider 26 cannot push the blocking block 28 to deform and move backward by the thrust of the spring 1 27 alone, thereby ensuring the limit position of the slider 26 and the sealing ring 24. On the contrary, after use, the winding member 33 can be rotated to make the winding member 33 move the connecting member 32 pulls and rewinds, and the connecting member 32 pulls the slider 26 backward, so that the slider 26 drives the sealing ring 24 to move backward and reset, and re-compresses the spring 2 30. At the same time, after the connection piece 1 7 and the connection piece 2 8 are reset, the push on the blocking block 28 is cancelled, so that the spring 2 30 will push the blocking block 28 to reset and re-block the slider 26. The above arrangement ensures that it can be reset after maintenance and can continue to be used during the next maintenance. The sealing ring 24 is used to reinforce and reduce the leakage of water from the connection piece 1 7 and the connection piece 2 8. Secondly, when the slider 26 moves, it will drive the closing plate 31 to move together, covering the chute 25, reducing the liquid from entering the chute 25 and reducing penetration. At the same time, the connection between the chute 25 and the push block 29 and other parts is equipped with a sealing strip to reduce the leakage of liquid. Secondly, the sealing strip is a prior art and will not be discussed in detail here.

[0020] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic regulating fire valve, comprising a valve body (1), a valve plate (2) and a valve stem (3), wherein the valve body (1) is connected to the valve stem (3) and the valve plate (2) by bolts, and is characterized in that: A rotating member (4) for fixing the valve stem (3) is provided at the connection point between the valve body (1) and the valve stem (3), a rotating wheel (5) is rotatably connected to the valve body (1), a fixing rod (6) is provided at the middle of the valve body (1) away from the valve plate (2), a connecting piece 1 (7) and a connecting piece 2 (8) for closing the valve body (1) are rotatably connected to the fixing rod (6), a sealing ring 1 (9) abutting against the connecting piece 1 (7) and the connecting piece 2 (8) are provided on both sides of the fixing rod (6) inside the valve body (1), an adjusting component for driving the connecting piece 1 (7) and the connecting piece 2 (8) to rotate relative to each other is provided inside the fixing rod (6), and a driving component is provided on the rotating member (4) and the rotating wheel (5); The driving assembly comprises a protrusion (10) arranged on the rotating member (4) for blocking the rotation of the rotating wheel (5), an abutting block (11) abutting against the protrusion (10) on the rotating wheel (5), a torsion spring (12) arranged between the rotating wheel (5) and the valve body (1), a driving rod (13) arranged inside the fixing rod (6), a connecting rope (14) arranged between the rotating wheel (5) and the driving rod (13), two ends of the connecting rope (14) being respectively wound around the rotating wheel (5) and the driving rod (13), and a groove (15) for accommodating the winding of the connecting rope (14) being arranged on the rotating wheel (5); The adjustment assembly comprises a first bevel tooth (16) arranged and clamped on the driving rod (13); a second bevel tooth (17) is meshed with the lower end of the first bevel tooth (16) in the fixing rod (6); the second bevel tooth (17) is rotatably connected to the fixing rod (6); a support rod (18) is arranged in the fixing rod (6) and is opposite to the driving rod (13); a third bevel tooth (19) is clamped and meshed with the second bevel tooth (17) at the upper end of the support rod (18); the driving rod (13) is connected to the first connecting piece (7), and the support rod (18) is connected to the second connecting piece (8).

2. The automatic regulating fire valve according to claim 1, characterized in that: The driving rod (13) and the supporting rod (18) are both provided with washers (20) connected to the first connecting piece (7) and the second connecting piece (8), and the fixing rod (6) is provided with guide grooves (21) at the upper and lower ends for guiding the movement of the first connecting piece (7) and the second connecting piece (8).

3. The automatic regulating fire valve according to claim 1, characterized in that: The rotating wheel (5) and the rotating member (4) are provided with half gears (22) meshing with each other, a second torsion spring (23) is provided between the driving rod (13) and the fixing rod (6), and the elastic force of the first torsion spring (12) is greater than the elastic force of the second torsion spring (23).

4. The automatic regulating fire valve according to claim 3 is characterized in that: A sealing ring 2 (24) is provided at the rear ends of the connecting piece 1 (7) and the connecting piece 2 (8); the sealing ring 2 (24) is slidably connected to the inner wall of the valve body (1); the inner wall of the valve body (1) is provided with a sliding groove (25) for guiding the movement of the sealing ring 2 (24); and a sliding block (26) is provided on the sealing ring 2 (24) and is embedded in the sliding groove (25).

5. The automatic regulating fire valve according to claim 4 is characterized in that: A spring (27) for pushing the slider (26) is provided in the slide groove (25), a blocking block (28) for blocking the slider (26) from moving is provided in the slide groove (25), and a pushing block (29) for pushing the blocking block (28) to move backward and abut against the valve body (1) is provided on the connecting piece (7) and the connecting piece (8).

6. The automatic regulating fire valve according to claim 5, characterized in that: The surface of the blocking block (28) abutting against the valve body (1) is an arc surface, and the surface abutting against the sliding block (26) is a vertical surface. A second spring (30) is provided between the blocking block (28) and the valve body (1).

7. The automatic regulating fire valve according to claim 4, characterized in that: The slider (26) is provided with a closing plate (31) which is slidably connected to the valve body (1).

8. The automatic regulating fire valve according to claim 7, characterized in that: A connecting piece (32) is provided on one side of the slider (26) connected to the spring (27), and a reeling piece (33) for reeling in the connecting piece (32) is rotatably connected to the outside of the valve body (1).

Images