Fluid safety cut-off device

Abstract

A fluid safety cut-off device, which comprises: a body (1), a ferromagnetic component (2), a reset switch group (3) and a magnetic component (4). Both ends of the body (1) are respectively an inlet end (11) and an outlet end (12). The body (1) has a flow hole (13) that penetrates through the inlet end (11) and the outlet end (12). The flow hole (13) is formed with a wide-diameter section (131) and a narrow-diameter section (132). One end of the wide-diameter section (131) communicates with the narrow-diameter section (132), and the narrow-diameter section (132) communicates with the outlet end (12). The outer side of the body (1) has a mounting hole (14) that communicates with the wide-diameter section (131). The outer side of the body (1) corresponding to the wide-diameter section (131) has a connecting groove (15), and the connecting groove (15) is not communicated with the flow hole (13). The ferromagnetic component (2) is located in the wide-diameter section (131), and the ferromagnetic component (2) can movably block between the wide-diameter section (131) and the narrow-diameter section (132). The reset switch group (3) is arranged in the mounting hole (14). If the ferromagnetic component (2) blocks between the wide-diameter section (131) and the narrow-diameter section (132), operating the reset switch group (3) can release the blockage of the ferromagnetic component (2). The magnetic component (4) is combined in the connecting groove (15). Accordingly, the fluid safety cut-off device has the beneficial effect of having no installation angle limitation.

Description

Technical Field

[0001] The present invention relates to a safety cut-off device, and more particularly to a fluid safety cut-off device installed on a pipeline for conveying fluid, which can cut off the fluid flow if the fluid flow rate is too large. Background Art

[0002] The superflow valve is a quite common valve body, often applied to pipelines for conveying fluid. The superflow valve has a flow rate setting value according to specifications. When the fluid flowing into the superflow valve exceeds this flow rate setting value, the superflow valve will close to cut off the fluid from continuing to flow downstream. For example, when there is a hole in the downstream pipeline, it will cause the flow rate of the fluid flowing into the superflow valve to increase instantaneously, and the superflow valve will close, thereby preventing the fluid from continuing to leak. Or when the upstream source is abnormal and the output flow rate surges, the superflow valve is triggered to close to prevent the downstream equipment from being damaged by excessive impact.

[0003] However, in the currently commercially available superflow valves, most of their structures are provided with a groove inside the valve body, and then a sphere is placed in the groove. When the impact force of the fluid flowing into the superflow valve is too large, the sphere will be ejected from the groove, so that the sphere blocks the outlet of the valve body, thereby achieving the effect of preventing the fluid from continuing to leak. However, when installing the superflow valve with this kind of structure, the notch of the groove must face upward to be used normally. Therefore, the installation angle of the pipeline and the superflow valve is limited, which is extremely inconvenient for pipe installation personnel.

[0004] In view of the above problems, how to solve the problem of the installation angle limitation of the superflow valve in the known technology is a problem that major industries must overcome. Summary of the Invention

[0005] Compared with the known superflow valve, the present invention has no installation angle limitation.

[0006] To achieve the above object and effect, the present invention provides a fluid safety cut-off device, which includes: a body, a ferromagnetic component, a return switch group, and a magnetic component. The two ends of the body are respectively an inlet end and an outlet end. The body has a flow-through hole penetrating the inlet end and the outlet end. The flow-through hole is formed with a wide-diameter section and a narrow-diameter section. One end of the wide-diameter section communicates with the narrow-diameter section and the narrow-diameter section communicates with the outlet end, and the narrow-diameter section is located between the outlet end and the wide-diameter section. The outside of the body has a mounting hole communicating with the wide-diameter section. The outside of the body corresponding to the wide-diameter section has a connecting groove, and the connecting groove is not communicated with the flow-through hole; the ferromagnetic component is located in the wide-diameter section, and the ferromagnetic component can movably block the narrow-diameter section, so that the outlet end is not communicated with the inlet end; the return switch group is arranged in the mounting hole. If the ferromagnetic component blocks the narrow-diameter section, operating the return switch group can release the blockage of the ferromagnetic component, so that the outlet end is communicated with the inlet end; the magnetic component is combined in the connecting groove.

[0007] The magnetic component includes a shell and an adjustment component, the shell has an adjustment through-hole running through both ends thereof, the shell is assembled in the connecting slot, one end of the adjustment component is a magnetic head, and the other end is an adjustment portion, the adjustment component is movably arranged in the adjustment through-hole, the magnetic head faces the body, one end of the adjustment portion is connected to the magnetic head, and the other end has a detent area, force is applied to the detent area to adjust the adjustment portion, thereby controlling the magnetic head to be away from or close to the body.

[0008] The shell includes a connecting portion and a body portion connected to each other, the connecting portion is connected to the connecting groove, the adjusting through hole passes through the connecting portion and the body, the adjusting through hole includes a wide hole section and a narrow hole section, the magnetic head is located in the wide hole section, the narrow hole section is in a threaded state, the adjusting portion is movably screwed to the narrow hole section, and the adjusting portion is rotated in a forward and reverse direction by applying force to the detent area to control the magnetic head to move away from or approach the body.

[0009] The magnetic head includes an outer cover section and a magnetic body. A magnetic groove is recessed on one side of the outer cover section facing the main body. The other side of the outer cover section is connected to the adjustment part. The magnetic body is embedded in the magnetic groove.

[0010] The fluid safety shutoff device further comprises an elastic washer, the circumference of which is in close contact with the narrow diameter section.

[0011] The detent area of ​​the regulating part is in the shape of a straight groove and is exposed outside the shell and connected to a rotating disk, or is exposed outside the shell and combined with a hand handle.

[0012] The reset switch assembly includes a cap, a cylinder, a first spring, an outer stopcock and an inner stopcock, one end of the cylinder is assembled in the mounting hole, an annular rib is extended inwardly from the inner wall of the cylinder, the outer stopcock has an outer thin section and an outer thick section connected to each other, the outer stopcock is inserted into the cylinder, the outer thick section is located between the annular rib and the wide diameter section, the outer thin section is partially exposed from the cylinder and has a bolt through hole that passes through the outer thick section and the outer thin section, the first spring is sleeved on the outer side of the outer thin section, and the first spring is partially located in the outer side of the outer thin section. The cap has a cap opening in the cylinder body, and the cap is fitted on the outer thin section with the cap opening. One end of the first spring is elastically pressed against the cap and the other end is elastically pressed against the annular rib. The inner stopcock has an inner thin section and an inner thick section connected to each other. The inner stopcock is movably arranged in the stopcock through-hole. The inner thick section is located inside the outer thick section, and the inner thin section is partially located inside the outer thin section. A second spring is connected between the inner thick section and the ferromagnetic component. By adjusting the inner stopcock, the length of the inner thick section exposed from the outer thick section to the wide diameter section can be adjusted.

[0013] The outer side of the inner thin section is surrounded by at least one gasket, and the at least one gasket is tightly fitted between the inner thin section and the bolt through hole.

[0014] The fluid safety cut-off of the present invention has the beneficial effect of having no installation angle limitation compared with the known technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 It is an exploded schematic diagram of the present invention.

[0017] Figure 3 It is Figure 1 a schematic cross-sectional view along line III-III in

[0018] Figure 4 a schematic diagram of a ferromagnetic component blocking in the narrow diameter section.

[0019] Figure 5 a schematic diagram of the operation reset switch group releasing the blockage of the ferromagnetic component.

[0020] Figure 6 a schematic diagram of the movement of the adjusting member.

[0021] Figure 7 It is a three-dimensional schematic diagram of another embodiment of the present invention.

[0022] Figure 8 It is an exploded schematic diagram of another embodiment of the present invention.

[0023] Figure 9 It is Figure 7 a schematic cross-sectional view along line IX-IX in

[0024] Figure 10 a schematic diagram of the movement of the inner bolt in another embodiment of the present invention.

[0025] Symbolic description in the drawings:

[0026] 1 Body; 11 Inlet end; 12 Outlet end; 13 Flow hole; 131 Wide-diameter section; 132 Narrow-diameter section; 1321 Elastic washer; 14 Mounting hole; 15 Connection groove; 16 Abuttment portion; 2 Ferromagnetic component; 3 Reset switch group; 31 Cap; 311 Cap opening; 32 Cylinder; 321 Annular rib; 33 First spring; 34 Outer bolt; 341 Outer thin section; 342 Outer thick section; 343 Bolt through-hole; 35 Inner bolt; 351 Inner thin section; 352 Inner thick section; 353 Washer; 36 Second spring; 4 Magnetic member; 41 Housing; 411 Connection portion; 412 Body portion; 413 Adjustment through-hole; 4131 Wide-hole section; 4132 Narrow-hole section; 42 Adjusting member; 421 Magnetic head; 4211 Outer cover section; 4212 Magnetic member groove; 4213 Magnetic body; 422 Adjusting portion; 4221 Braking area; 5 Slotted crosshead screwdriver groove. Detailed implementation mode

[0027] For a more detailed understanding of the implementation mode of the present invention, please also view it in conjunction with the drawings, as Figures 1 to 3 As shown, it is a fluid safety cut-off device, which includes: a body 1, a ferromagnetic component 2, a reset switch group 3 and a magnetic member 4. The two ends of the body 1 are respectively an inlet end 11 and an outlet end 12. The body 1 has a flow hole 13 penetrating the inlet end 11 and the outlet end 12. The flow hole 13 is formed with a wide-diameter section 131 and a narrow-diameter section 132. One end of the wide-diameter section 131 communicates with the narrow-diameter section 132 and the narrow-diameter section 132 communicates with the outlet end 12. The narrow-diameter section 132 is located between the outlet end 12 and the wide-diameter section 131. The outer side of the body 1 has a mounting hole 14 communicating with the wide-diameter section 131. The outer side of the body 1 corresponding to the wide-diameter section 131 has a connection groove 15, and the connection groove 15 is not communicated with the flow hole 13; the ferromagnetic component 2 is located in the wide-diameter section 131, and the ferromagnetic component 2 can movably block the narrow-diameter section 132, so that the outlet end 12 is not communicated with the inlet end 11; the reset switch group 3 is arranged in the mounting hole 14. If the ferromagnetic component 2 blocks the narrow-diameter section 132, operating the reset switch group 3 can release the block of the ferromagnetic component 2 and make the outlet end 12 communicate with the inlet end 11; the magnetic member 4 is combined in the connection groove 15.

[0028] In this embodiment, the body 1 has an abutment portion 16. The abutment portion 16 is located between the wide-diameter section 131 and the magnetic member 4. The ferromagnetic component 2 can abut against the abutment portion 16 due to the attraction of the magnetic member 4. The ferromagnetic component 2 can be made of ferromagnetic (Ferromagnetism) materials such as iron, cobalt, nickel, etc. In this embodiment, it is demonstrated in the form of a sphere.

[0029] The structure of the present invention can be understood from the foregoing content. Next, the embodiments of the present invention will be further described in detail. Watch Figure 3 It can be known that the ferromagnetic component 2 abuts against the abutting portion 16 due to the attraction of the magnetic member 4. Therefore, if the flow impact force of the fluid does not exceed the magnetic attraction force of the magnetic member 4, the ferromagnetic component 2 will not be separated from the abutting portion 16 when the fluid flows through the ferromagnetic component 2. However, when the flow impact force of the fluid exceeds the magnetic attraction force of the magnetic member 4, it will be as Figure 4 shown. The magnetic attraction force of the magnetic member 4 is insufficient to resist the impact force brought by the fluid, and the ferromagnetic component 2 is blocked in the narrow diameter section 132 due to the impact, blocking the fluid from flowing from the inlet end 11 to the outlet end 12. If you want to restore the ferromagnetic component 2 after eliminating the abnormality, you need to operate the restoration switch group 3. The restoration switch group 3 of this embodiment is as Figure 5 shown. Taking the push switch form as an example, after pressing the restoration switch group 3, the ferromagnetic component 2 is peeled off from the narrow diameter section 132 due to the push, and the ferromagnetic component 2 is close to the abutting portion 16 due to the push at the front end of the restoration switch group 3, so that the ferromagnetic component 2 is magnetically attracted by the magnetic member 4 again and abuts against the abutting portion 16 to complete the restoration. In addition, since the present invention uses the technology of magnetic attraction to make the ferromagnetic component 2 abut against the abutting portion 16, there are no restrictions on the angle and direction during the installation of the present invention.

[0030] As Figure 2 , Figure 3 , Figure 6 shown, a form of the magnetic member 4 is provided. The magnetic member 4 includes a housing 41 and an adjusting member 42. The housing 41 has an adjusting through hole 413 penetrating through both ends thereof. The housing 41 is combined with the connecting groove 15. One end of the adjusting member 42 is a magnetic head 421, and the other end is an adjusting portion 422. The adjusting member 42 is movably arranged in the adjusting through hole 413. The magnetic head 421 faces the body 1. One end of the adjusting portion 422 is connected to the magnetic head 421, and the other end has a braking area 4221. Applying force to the braking area 4221 to adjust the adjusting portion 422 to control the magnetic head 421 to move away from or close to the body 1. By this structure, the distance between the magnetic head 421 and the abutting portion 16 is adjusted, and the magnetic attraction force of the magnetic head 421 on the ferromagnetic component 2 is changed, so as to change the sensitivity of the ferromagnetic component 2 to trigger the blocking function. And as Figure 6As shown in the figure, the housing 41 includes a connecting portion 411 and a body portion 412 that are connected to each other. The connecting portion 411 is connected to the connecting groove 15. The adjustment perforation 413 penetrates through the connecting portion 411 and the body portion 412. The adjustment perforation 413 includes a wide hole section 4131 and a narrow hole section 4132. The magnetic head 421 is located in the wide hole section 4131. The narrow hole section 4132 is in a threaded state. The adjustment portion 422 is movably screwed onto the narrow hole section 4132. By applying force to the braking area 4221 to rotate the adjustment portion 422 in a forward and reverse direction, the magnetic head 421 is controlled to move away from or close to the main body 1. This structure positions the magnetic head 421 in the wide hole section 4131, preventing excessive adjustment and detachment from the adjustment perforation 413. Moreover, the adjustment form of rotating the adjustment portion 422 in a forward and reverse direction allows for more precise adjustment of the flow rate setting value.

[0031] As Figure 2 , Figure 6 shown in the figure, the magnetic head 421 includes a cover section 4211 and a magnetic body 4213. A magnetic part groove 4212 is recessed on one side of the cover section 4211 facing the main body 1. The other side of the cover section 4211 is connected to the adjustment portion 422. The magnetic body 4213 is embedded in the magnetic part groove 4212. This structure concentrates the magnetic force of the magnetic head 421 on the magnetic body 4213, resulting in a smaller offset range of the position where the ferromagnetic component 2 abuts against the abutting portion 16 each time it returns, thereby improving the accuracy of the flow rate setting value.

[0032] As Figure 4 shown in the figure, the fluid safety cut-off further has an elastic washer 1321. The circumferential side of the elastic washer 1321 closely adheres to the narrow diameter section 132, making the ferromagnetic component 2 fit more tightly when blocking the narrow diameter section 132.

[0033] The braking area 4221 of the adjustment portion 422 has a shape of a cross-shaped groove 5 and is exposed outside the housing and connected to a turntable, or is exposed outside the housing and combined with a hand crank. This provides various structures that facilitate the adjustment of the braking area 4221 of the adjustment portion 422.

[0034] As Figures 7 to 9As shown in the figure, the reset switch group 3 includes a cap 31, a cylinder 32, a first spring 33, an outer bolt 34 and an inner bolt 35. One end of the cylinder 32 is assembled in the mounting hole 14. An annular rib 321 extends annularly inward from the inner wall of the cylinder 32. The outer bolt 34 has an outer thin section 341 and an outer thick section 342 connected to each other. The outer bolt 34 is inserted into the cylinder 32. The outer thick section 342 is located between the annular rib 321 and the wide-diameter section 131. A part of the outer thin section 341 is exposed outside the cylinder 32 and has a bolt through-hole 343 that penetrates the outer thick section 342 and the outer thin section 341. The first spring 33 is sleeved outside the outer thin section 341, and a part of the first spring 33 is located inside the cylinder 32. The cap 31 has a cap opening 311. The cap 31 is sleeved on the outer thin section 341 with the cap opening 311. One end of the first spring 33 abuts against the cap 31, and the other end abuts against the annular rib 321. The inner bolt 35 has an inner thin section 351 and an inner thick section 352 connected to each other. The inner bolt 35 is movably inserted into the bolt through-hole 343. The inner thick section 352 is located inside the outer thick section 342. A part of the inner thin section 351 is located inside the outer thin section 341. A second spring 36 is connected between the inner thick section 352 and the ferromagnetic component 2. Adjusting the inner bolt 35 can adjust the length of the inner thick section 352 exposed from the outer thick section 342 to the wide-diameter section 131. In addition to the original function of releasing the blockage of the ferromagnetic component 2 in the narrow-diameter section 132 (refer to Figure 4 , Figure 5 ), as shown in Figure 10 , by adjusting the inner bolt 35, the pressing force of the second spring 36 on the ferromagnetic component 2 can be changed, and the flow rate setting value can be adjusted more precisely by cooperating with the magnetic attraction of the magnetic component 4 in multiple aspects.

[0035] As shown in Figure 8 , 9 , at least one washer 353 is annularly arranged outside the inner thin section 351. The at least one washer 353 is closely attached between the inner thin section 351 and the bolt through-hole 343. Since the inner bolt 35 will move due to adjustment, adding the washer 353 to the inner thin section 351 can effectively reduce the chance of fluid leakage between the bolt through-hole 343 and the inner bolt 35.

[0036] The fluid safety cut-off device of the present invention has the beneficial effect of no installation angle limitation compared with the known technology, so it can be widely applied and thus has good industrial practicability.

[0037] The above description is only for explaining the preferred embodiments of the present invention and is not intended to limit the present invention in any form. Therefore, any modification or change made to the present invention under the same inventive spirit, which is in other implementable forms and has the same effect, should still be included within the scope intended to be protected by the present invention.

Claims

1. A fluid safety cut-off device, wherein, Comprising: A body, with an inlet end and an outlet end at both ends respectively. The body has a flow-through hole that penetrates the inlet end and the outlet end. The flow-through hole is formed with a wide-diameter section and a narrow-diameter section. One end of the wide-diameter section is connected to the narrow-diameter section, and the narrow-diameter section is connected to the outlet end, and the narrow-diameter section is located between the outlet end and the wide-diameter section. An installation hole communicating with the wide-diameter section is provided on the outer side of the body. A connecting groove corresponding to the wide-diameter section is provided on the outer side of the body, and the connecting groove is not communicated with the flow-through hole; A ferromagnetic component, which is located in the wide-diameter section, and the ferromagnetic component can movably block the narrow-diameter section, so that the outlet end is not communicated with the inlet end; A return switch group, which is arranged in the installation hole. If the ferromagnetic component blocks the narrow-diameter section, operating the return switch group can release the blockage of the ferromagnetic component, so that the outlet end is communicated with the inlet end; And a magnetic member, which is combined in the connecting groove; Wherein, the magnetic member includes a housing and an adjusting member. The housing has an adjusting through hole penetrating through both ends thereof. The housing is combined in the connecting groove. One end of the adjusting member is a magnetic head, and the other end of the adjusting member is an adjusting part. The adjusting member is movably arranged in the adjusting through hole. The magnetic head faces the body. One end of the adjusting part is connected to the magnetic head, and the other end has a braking area. By applying force to the braking area to adjust the adjusting part, the magnetic head can be controlled to move away from or close to the body; The fluid safety cut-off further has an elastic washer, and the peripheral side of the elastic washer closely adheres to the narrow-diameter section.

2. The fluid safety cut-off device according to claim 1, wherein The housing includes a connecting part and a body part that are connected to each other. The connecting part is connected to the connecting groove. The adjusting through hole penetrates the connecting part and the body part. The adjusting through hole includes a wide-hole section and a narrow-hole section. The magnetic head is located in the wide-hole section. The narrow-hole section is in a threaded state. The adjusting part is movably screwed in the narrow-hole section. By applying force to the braking area to rotate the adjusting part in a forward or reverse direction, the magnetic head can be controlled to move away from or close to the body.

3. The fluid safety cut-off device according to claim 2, wherein The magnetic head includes a cover section and a magnetic body. A magnetic part groove is recessed on one side of the cover section facing the body. The other side of the cover section is connected to the adjusting part, and the magnetic body is embedded in the magnetic part groove.

4. The fluid safety cut-off device according to any one of claims 1 to 3, wherein, The braking area of the adjusting part is in a shape of a cross-shaped groove and is exposed outside the housing and connected to a turntable, or is exposed outside the housing and combined with a hand crank.

5. The fluid safety shut-off device according to any one of claims 1 to 3, wherein, The reset switch group includes a cap, a cylinder, a first spring, an outer bolt and an inner bolt. One end of the cylinder is assembled in the installation hole. An annular rib extends annularly inward from the inner wall of the cylinder. The outer bolt has a connected outer thin section and an outer thick section. The outer bolt is inserted into the cylinder. The outer thick section is located between the annular rib and the wide diameter section. A part of the outer thin section is exposed outside the cylinder and has a bolt through hole penetrating the outer thick section and the outer thin section. The first spring is sleeved outside the outer thin section, and a part of the first spring is located inside the cylinder. The cap has a cap opening, and the cap is sleeved on the outer thin section through the cap opening. One end of the first spring abuts against the cap and the other end abuts against the annular rib. The inner bolt has a connected inner thin section and an inner thick section. The inner bolt is movably inserted into the bolt through hole. The inner thick section is located inside the outer thick section. A part of the inner thin section is located inside the outer thin section. A second spring is connected between the inner thick section and the ferromagnetic component. The inner bolt is adjusted to adjust the length of the inner thick section exposed from the outer thick section to the wide diameter section.

6. The fluid safety cut-off device according to claim 5, wherein, At least one washer is annularly arranged outside the inner thin section, and the at least one washer is closely attached between the inner thin section and the bolt through hole.

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