Thermal fusing fireproof ball valve

Abstract

The utility model relates to the technical field of ball valves, and discloses a thermal fusing fireproof ball valve which comprises a valve body, a blocking mechanism is arranged in the valve body and comprises a U-shaped block, a threaded rod, a rotating block, an abutting plate and low-melting-point alloy, and the left side of the U-shaped block is fixedly connected with the inner wall of the valve body. According to the thermal fusing fireproof ball valve, low-melting-point alloy is firstly placed between the U-shaped blocks, after the low-melting-point alloy is well placed, a rotating block can be rotated, a threaded rod is fixedly installed at the bottom of the rotating block, the threaded rod can move on the inner wall of the U-shaped blocks in a threaded mode, and one end of the threaded rod can be fixedly installed at the bottom of an abutting plate to abut against the upper surface of the low-melting-point alloy; the low-melting-point alloy can be placed more stably when not in use, the problem of blocking the low-melting-point alloy when the temperature is too high is effectively solved, the effect of safer use can be achieved, meanwhile, the use safety in practice is improved, and the loss caused by the too high temperature is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a thermally cut-off fireproof ball valve. Background Art

[0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc., and is widely used in practice.

[0003] According to a ball valve with application number CN202221881037.6, this solution solves the problem of how to ensure that the elastic part and the support shaft can provide stable support to the ball and improve the reliability of the ball valve.

[0004] However, the following problems still exist in actual use:

[0005] (1) The existing ball valve has the problem of not being able to automatically block when the operating temperature is too high during use, so the safety during use is low, which is not conducive to reducing the losses caused by excessive temperature and is not conducive to its promotion and use in practice.

[0006] (2) The existing ball valve has the problem of being unable to effectively control the flow rate in a more stable manner during use, resulting in the inability to perform relevant stable control of the flow rate according to actual conditions during use, which reduces the actual use effect.

[0007] For this purpose, the utility model introduces a thermally cut-off fireproof ball valve. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model provides a thermally cut-off fireproof ball valve, which has the advantages of being able to automatically cut off when the temperature is too high and being more stable when controlling the flow, thereby solving the problems raised in the background technology.

[0009] The utility model provides the following technical solution: a thermal melt fireproof ball valve, comprising a valve body, a blocking mechanism is arranged inside the valve body, the blocking mechanism comprises a U-shaped block, a threaded rod, a rotating block, an abutment plate and a low-melting-point alloy, the left side of the U-shaped block is fixedly connected to the inner wall of the valve body, the outer surface of the threaded rod is threadedly connected to the inner wall of the U-shaped block, the bottom of the rotating block is fixedly connected to one end of the threaded rod, the upper surface of the abutment plate is fixedly connected to the other end of the threaded rod, and the upper surface of the low-melting-point alloy abuts against the bottom of the abutment plate.

[0010] Preferably, a control mechanism is provided on the upper surface of the valve body, and the control mechanism includes a valve cover, a valve stem, a connecting plate and an L-shaped block. The bottom of the valve cover is fixedly connected to the upper surface of the valve body, the outer surface of the valve stem is rotatably connected to the inside of the valve cover, the back side of the connecting plate is fixedly connected to the outer surface of the valve stem, and the outer surface of the L-shaped block is plugged into the inside of the connecting plate.

[0011] Preferably, the bottom of the low melting point alloy abuts against the bottom end of the U-shaped block, and a blocking block is provided on the upper surface of the low melting point alloy.

[0012] Preferably, a connecting pipe is fixedly mounted on the outer surface of the valve body, and a flange is fixedly mounted on the outer surface of the connecting pipe.

[0013] Preferably, a control valve block is fixedly mounted on one end of the valve stem, a control ball is fixedly mounted on one end of the valve stem, and an outer surface of the valve stem is rotatably connected to the inside of the low-melting-point alloy.

[0014] Preferably, a limiting groove is provided on the upper surface of the valve cover, the interior of the limiting groove is plugged into the outer surface of the L-shaped block, and the internal thread of the valve cover is connected with a fastening bolt.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The thermal cut-off fireproof ball valve uses a blocking mechanism. When the thermal cut-off fireproof ball valve is in use and is blocked when the temperature is too high, first, the low-melting-point alloy is placed between the U-shaped blocks. After placement, the bottom of the rotating block can be fixedly installed by rotating the rotating block, and the threaded rod can be threaded on the inner wall of the U-shaped block, and one end of the threaded rod can be fixedly installed so that the bottom of the abutment plate abuts against the upper surface of the low-melting-point alloy, so that the low-melting-point alloy can be placed more stably when not in use. When the overall ambient temperature is too high, the low-melting-point alloy will melt due to the high external temperature, so that the blocking block placed on the upper surface of the low-melting-point alloy will block the inside of the connecting pipe, thereby blocking the operation of the entire device, facilitating safer use in practice, effectively solving the problem of how to block it when the temperature is too high, and achieving a safer use effect. At the same time, it improves the safety in actual use, helps reduce the loss caused by excessively high temperature, and helps promote its use in practice.

[0017] 2. The thermal cut-off fireproof ball valve, through the use of the control mechanism, when the thermal cut-off fireproof ball valve is in use, when the flow is stably controlled according to the actual situation, first, by rotating the control valve block, the valve stem fixedly installed at the bottom of the control valve block can be driven to rotate, and after the valve stem is rotated to the relevant position, the control ball fixedly installed at the bottom of the valve stem can follow the synchronous rotation, thereby controlling the flow, and finally, the outer surface of the valve stem is fixedly installed on the inside of the connecting plate and the L-shaped block is plugged into the inner part of the limit groove, which is convenient for more precise control of the flow, effectively solving the problem of how to control the flow more stably, and can achieve the effect of easy use. At the same time, the flow can be controlled according to the actual situation, which improves the actual use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A side view structural schematic diagram of;

[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the blocking mechanism structure;

[0021] Figure 4 For this utility model Figure 1 Schematic diagram of the control mechanism structure.

[0022] In the figure: 1. valve body; 2. connecting pipe; 3. flange; 4. U-shaped block; 5. threaded rod; 6. rotating block; 7. abutment plate; 8. low melting point alloy; 9. blocking block; 10. valve cover; 11. fastening bolts; 12. valve stem; 13. control ball; 14. control valve block; 15. connecting plate; 16. L-shaped block; 17. limit groove; 18. blocking mechanism; 19. control mechanism. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 3, a thermal melt fireproof ball valve comprises a valve body 1, a blocking mechanism 18 is arranged inside the valve body 1, the blocking mechanism 18 comprises a U-shaped block 4, a threaded rod 5, a rotating block 6, an abutment plate 7 and a low-melting-point alloy 8, the left side of the U-shaped block 4 is fixedly connected to the inner wall of the valve body 1, the outer surface of the threaded rod 5 is threadedly connected to the inner wall of the U-shaped block 4, the bottom of the rotating block 6 is fixedly connected to one end of the threaded rod 5, the upper surface of the abutment plate 7 is fixedly connected to the other end of the threaded rod 5, the upper surface of the low-melting-point alloy 8 abuts against the bottom of the abutment plate 7, the bottom of the low-melting-point alloy 8 abuts against the bottom end of the inside of the U-shaped block 4, and the upper surface of the low-melting-point alloy 8 is provided with a blocking block 9, which can achieve a safer use effect. At the same time, it improves the safety in actual use, is conducive to reducing the loss caused by excessive temperature, and is conducive to the promotion and use in practice.

[0025] See also Figure 4 A control mechanism 19 is provided on the upper surface of the valve body 1, and the control mechanism 19 includes a valve cover 10, a valve stem 12, a connecting plate 15 and an L-shaped block 16. The bottom of the valve cover 10 is fixedly connected to the upper surface of the valve body 1, the outer surface of the valve stem 12 is rotatably connected to the inside of the valve cover 10, the back of the connecting plate 15 is fixedly connected to the outer surface of the valve stem 12, the outer surface of the L-shaped block 16 is plugged into the inside of the connecting plate 15, and a limiting groove 17 is provided on the upper surface of the valve cover 10. The inside of the limiting groove 17 is plugged into the outer surface of the L-shaped block 16. The internal thread of the valve cover 10 is connected with a fastening bolt 11, which can achieve the effect of easy use. At the same time, the flow rate can be controlled according to actual conditions, which improves the actual use effect.

[0026] See also Figure 1 , Figure 2 and Figure 4 A connecting pipe 2 is fixedly installed on the outer surface of the valve body 1, a flange 3 is fixedly installed on the outer surface of the connecting pipe 2, a control valve block 14 is fixedly installed on one end of the valve stem 12, a control ball 13 is fixedly installed on one end of the valve stem 12, and the outer surface of the valve stem 12 is rotatably connected to the inside of the low-melting-point alloy 8.

[0027] Working principle: When in use, for more precise control of the flow rate, by rotating the control valve block 14, the valve stem 12 fixedly installed at the bottom of the control valve block 14 can be driven to rotate. After the valve stem 12 is rotated to a relevant position, the control ball 13 fixedly installed at the bottom of the valve stem 12 can follow the synchronous rotation to control the flow rate. Finally, the outer surface of the valve stem 12 is fixedly mounted on the inside of the connecting plate 15 and the L-shaped block 16 is plugged into the inside of the limit groove 17, and the outer surface of the L-shaped block 16 is plugged into the inside of the limit groove 17, thereby ensuring the stability of the position after the valve stem 12 is rotated.

[0028] When the overall ambient temperature is too high and the device is blocked, the low-melting-point alloy 8 is placed between the U-shaped blocks 4. After placement, the rotating block 6 can be rotated to fix the bottom of the rotating block 6 with the threaded rod 5 threadedly moving on the inner wall of the U-shaped block 4, and one end of the threaded rod 5 can be fixedly installed so that the bottom of the abutment plate 7 abuts against the upper surface of the low-melting-point alloy 8, so that the low-melting-point alloy 8 can be placed more stably when not in use. When the overall ambient temperature is too high, the low-melting-point alloy 8 will melt due to the high external temperature, so that the blocking block 9 placed on the upper surface of the low-melting-point alloy 8 will block the inside of the connecting pipe 2.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Thermal cut-off fireproof ball valve, characterized by: The invention comprises a valve body (1), wherein a blocking mechanism (18) is provided inside the valve body (1), and the blocking mechanism (18) comprises a U-shaped block (4), a threaded rod (5), a rotating block (6), an abutting plate (7) and a low-melting-point alloy (8), wherein the left side of the U-shaped block (4) is fixedly connected to the inner wall of the valve body (1), the outer surface of the threaded rod (5) is threadedly connected to the inner wall of the U-shaped block (4), the bottom of the rotating block (6) is fixedly connected to one end of the threaded rod (5), the upper surface of the abutting plate (7) is fixedly connected to the other end of the threaded rod (5), and the upper surface of the low-melting-point alloy (8) abuts against the bottom of the abutting plate (7).

2. The thermal cutoff fireproof ball valve according to claim 1, characterized in that: A control mechanism (19) is provided on the upper surface of the valve body (1), and the control mechanism (19) includes a valve cover (10), a valve stem (12), a connecting plate (15) and an L-shaped block (16). The bottom of the valve cover (10) is fixedly connected to the upper surface of the valve body (1), the outer surface of the valve stem (12) is rotatably connected to the inside of the valve cover (10), the back surface of the connecting plate (15) is fixedly connected to the outer surface of the valve stem (12), and the outer surface of the L-shaped block (16) is plugged into the inside of the connecting plate (15).

3. The thermal cutoff fireproof ball valve according to claim 1, characterized in that: The bottom of the low-melting-point alloy (8) abuts against the bottom end inside the U-shaped block (4), and a blocking block (9) is provided on the upper surface of the low-melting-point alloy (8).

4. The thermal cutoff fireproof ball valve according to claim 1, characterized in that: A connecting pipe (2) is fixedly mounted on the outer surface of the valve body (1), and a flange (3) is fixedly mounted on the outer surface of the connecting pipe (2).

5. The thermal cutoff fireproof ball valve according to claim 2, characterized in that: A control valve block (14) is fixedly mounted on one end of the valve stem (12), a control ball (13) is fixedly mounted on one end of the valve stem (12), and the outer surface of the valve stem (12) is rotatably connected to the interior of the low-melting-point alloy (8).

6. The thermal cutoff fireproof ball valve according to claim 2, characterized in that: A limiting groove (17) is provided on the upper surface of the valve cover (10), the interior of the limiting groove (17) is plugged into the outer surface of the L-shaped block (16), and the interior of the valve cover (10) is threadedly connected with a fastening bolt (11).

Images