CN218152648U

CN218152648U - Gas self-closing valve with microleakage detects function

Info

Publication number: CN218152648U
Application number: CN202221911320.9U
Authority: CN
Inventors: 李冬
Original assignee: Shanghai Qiwei Valve Co ltd
Current assignee: Shanghai Qiwei Valve Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-12-27
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to a gas self-closing valve with microleakage detects function, comprises a valve seat, the last fixed surface of disk seat has the valve gap, the last surface rotation of valve gap is connected with the hand torsion bar, the inside of disk seat is fixed with the pipeline, the outside of pipeline is equipped with detection mechanism, be equipped with on the detection mechanism and prevent touching the mechanism. This gas self-closing valve with leak detection function a little, be provided with detection mechanism and prevent touching the mechanism, mutually support between each structure of mechanism through detection mechanism and prevention, can take place to reveal the back by baroceptor at the gas, and report to the police by the warning subassembly, in order to make the suggestion, protect gas self-closing valve through box body and apron simultaneously, and advance sealedly in the box body when the protection, can accurately detect with packing baroceptor, can also be with carrying out the sealed back at box body and apron, avoid making the box body open carelessly, thereby make box body and apron effect better when sealed.

Description

Gas self-closing valve with microleakage detects function

Technical Field

The utility model relates to a gas self-closing valve technical field specifically is a gas self-closing valve with microleakage detects function.

Background

The gas self-closing valve is a device which is installed on a low-pressure gas pipeline, can be automatically closed and needs manual opening without electric power or other external power when the gas supply pressure of the pipeline is under-pressure or over-pressure, and has the principle that permanent magnetic materials are magnetized into a permanent memory multi-pole permanent magnetic linkage mechanism according to the design requirement, the change of gas pressure parameters passing through the permanent magnetic linkage mechanism is identified, and when the gas supply pressure exceeds a safety set value, the valve can be automatically closed, and a gas source is cut off.

When the traditional gas self-closing valve is used, if a pressure regulating system fails in the gas supply process of equipment, the pressure of a medium-pressure pipe network is easy to enter a user, so that the gas pressure is seriously exceeded, the gas is leaked, and the safety of the user is threatened, so that the safety of the gas self-closing valve is reduced, certain potential safety hazards exist, and meanwhile, the gas is required to be quickly perceived and processed after being leaked, and accidents are avoided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a gas self-closing valve with microleakage detects function possesses advantages such as gas detection function, has solved the gas and has taken place to reveal the problem of back for can discovering fast.

In order to achieve the above purpose, the utility model provides a following technical scheme: a gas self-closing valve with a micro-leakage detection function comprises a valve seat, wherein a valve cover is fixed on the upper surface of the valve seat, a hand torsion bar is rotatably connected on the upper surface of the valve cover, a pipeline is fixed inside the valve seat, a detection mechanism is arranged on the outer side of the pipeline, and an anti-touch mechanism is arranged on the detection mechanism;

the detection mechanism is including fixing the box body in the pipeline outside, the upper surface swing joint of box body has the apron, the lower fixed surface of apron has the drum that is located the box body, the outside of drum is fixed with the sealing washer of sliding connection at the box body internal perisporium, the interior left wall of box body is fixed with baroceptor, the left side of box body is fixed with the warning subassembly.

Further, it includes drive assembly and runner assembly to prevent touching the mechanism, drive assembly is including seting up the recess at the apron lower surface, the inside rotation of recess is connected with the adapter sleeve, the outside of adapter sleeve is fixed with the spring, the lower fixed surface of spring has the gear, the last fixed surface of gear has one end to run through and extends to the connecting rod of apron upper surface.

Furthermore, the runner includes that the rotation rod is connected at the apron lower surface through the bearing rotation, the outside of runner is fixed with the fluted disc, the interior right wall of box body is fixed with the cardboard, the outside of runner is fixed with the limiting plate of sliding connection at the cardboard lower surface.

Further, the cylinder is circular ring-shaped, and the sealing ring is a rubber pad.

Further, the limiting plate does circular motion in the box body, and the connecting rod moves up and down linearly in the connecting sleeve.

Furthermore, the upper surface of the cover plate is provided with a through hole for the connecting rod to penetrate through, and the connecting rod is in clearance fit with the through hole.

Furthermore, the gear is meshed with the fluted disc, and the connecting rod penetrates through and extends to the outer side of the connecting sleeve.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this gas self-closing valve with microleakage detects function is provided with detection mechanism, mutually supports between each structure of detection mechanism, can take place to reveal the back at the gas and detect by baroceptor to report to the police by the warning subassembly, in order to make the suggestion, protect the gas self-closing valve through box body and apron simultaneously, and advance sealedly in the box body when the protection, can accurately detect with packing baroceptor.

2. This gas self-closing valve with microleakage detects function is provided with and prevents touching the mechanism, through preventing mutually supporting between each structure of touching the mechanism, can will carry out the sealed back at box body and apron, avoid inadvertently making the box body open to make box body and apron effect better when sealed, with the stability that sealed effect is poor appears in avoiding box body and apron, make baroceptor can effectually detect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the detecting mechanism of the present invention;

fig. 3 is a schematic view of the anti-touch mechanism of the present invention.

In the figure: the device comprises a detection mechanism 1, a cylinder 101, an air pressure sensor 102, a box 103, an alarm component 104, a sealing ring 105, a cover plate 106, a touch prevention mechanism 2, a rotating rod 201, a toothed disc 202, a clamping plate 203, a limiting plate 204, a connecting rod 205, a gear 206, a spring 207, a connecting sleeve 208, a groove 209, a torsion bar 3, a valve cover 4, a valve seat 5, an angle valve 6 and a pipeline 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the gas self-closing valve with a microleakage detection function in this embodiment includes a valve seat 5, a valve cover 4 is fixed on an upper surface of the valve seat 5, a hand torsion bar 3 is rotatably connected to an upper surface of the valve cover 4, a pipeline 7 is fixed inside the valve seat 5, a detection mechanism 1 is disposed outside the pipeline 7, and a touch prevention mechanism 2 is disposed on the detection mechanism 1.

The gas leakage detection and alarm device has the advantages that the detection mechanism 1 can detect and alarm the gas leakage, meanwhile, the gas self-closing valve is protected, and the anti-touch mechanism 2 can prevent the box body 103 and the cover plate 106 from being opened mistakenly.

Referring to fig. 2, the detection mechanism 1 in this embodiment includes a box body 103 fixed outside the pipeline 7, a cover plate 106 is movably connected to an upper surface of the box body 103, a handle is fixed to an upper surface of the cover plate 106, a cylinder 101 located in the box body 103 is fixed to a lower surface of the cover plate 106, a seal ring 105 slidably connected to an inner peripheral wall of the box body 103 is fixed to an outer side of the cylinder 101, the cylinder 101 enters the box body 103, the seal ring 105 contacts with the box body 103 to seal the box body 103, an air pressure sensor 102 is fixed to an inner left wall of the box body 103, when gas leaks, the gas pressure sensor 102 detects the gas, an alarm assembly 104 is fixed to a left side of the box body 103, and the alarm assembly 104 gives an alarm when the gas leaks.

The cylinder 101 is circular in shape and the sealing ring 105 is a rubber pad.

The gas self-closing valve is covered by the box body 103 and the cover plate 106 to form a sealed space, and after gas leakage occurs, the gas pressure sensor 102 detects the gas leakage and the alarm assembly 104 gives an alarm.

Above-mentioned detection mechanism 1 mutually supports between each structure, can take place to reveal the back by baroceptor 102 at the gas to report to the police by alarm component 104, in order to give the suggestion, protect the gas self-closing valve through box body 103 and apron 106 simultaneously, and advance sealedly in the box body 103 when the protection, can accurately detect with packing baroceptor 102.

Referring to fig. 3, the anti-touch mechanism 2 in this embodiment includes a driving component and a rotating component, the driving component includes a groove 209 formed on a lower surface of the cover plate 106, a connecting sleeve 208 is rotatably connected inside the groove 209, when the gear 206 rotates, the connecting sleeve 208 rotates inside the groove 209 through the gear 206 and the spring 207, the spring 207 is fixed outside the connecting sleeve 208, the spring 207 rebounds and returns to move the connecting rod 205 downward inside the connecting sleeve 208 through the gear 206, the gear 206 is fixed on a lower surface of the spring 207, the gear 206 drives the toothed plate 202 to rotate, a connecting rod 205 having one end penetrating through and extending to an upper surface of the cover plate 106 is fixed on an upper surface of the gear 206, and a handle is fixed on a top end of the connecting rod 205.

The rotating assembly comprises a rotating rod 201 which is rotatably connected to the lower surface of the cover plate 106 through a bearing, a fluted disc 202 is fixed on the outer side of the rotating rod 201, the rotating rod 201 rotates in the bearing when the fluted disc 202 rotates, a clamping plate 203 is fixed on the inner right wall of the box body 103, after the clamping plate 204 is clamped by the clamping plate 203, the cover plate 106 cannot be separated from the box body 103 through a handle, a limiting plate 204 which is slidably connected to the lower surface of the clamping plate 203 is fixed on the outer side of the rotating rod 201, the limiting plate 204 rotates along with the rotating rod 201 and is clamped with the clamping plate 203, the limiting plate 204 does circular motion in the box body 103, the connecting rod 205 moves up and down in the connecting sleeve 208 in a linear mode, a through hole for the connecting rod 205 to penetrate through is formed in the upper surface of the cover plate 106, the connecting rod 205 is in clearance fit with the through hole, the gear 206 is meshed with the fluted disc 202, and the connecting rod 205 penetrates through and extends to the outer side of the connecting sleeve 208.

The gear 206 is engaged with the toothed plate 202 via the connecting rod 205, and the gear 206 is driven to rotate by the rotating connecting rod 205, and the rotating toothed plate 202 causes the stopper plate 204 to be engaged with the chucking plate 203 via the rotating rod 201.

Above-mentioned prevent touching mechanism 2 and mutually support between each structure, can avoid inadvertently making box body 103 open after box body 103 and apron 106 seal up to make box body 103 and apron 106 effect better when sealed, with the stability that sealed effect is poor appears in avoiding box body 103 and apron 106, make baroceptor 102 can effectually detect.

The utility model discloses a control mode is controlled through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply of power also belongs to the common general knowledge in this field, and the utility model discloses mainly be used for protecting mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

The working principle of the above embodiment is as follows:

(1) After the gas self-closing valve is installed, the box body 103 is connected with the pipeline 7, the cover plate 106 is placed on the box body 103, the cylinder 101 enters the box body 103, the sealing ring 105 is in contact with the box body 103, the box body 103 is sealed, a sealed space is formed between the box body 103 and the cover plate 106, the gas self-closing valve is covered, the connecting rod 205 is moved upwards through the handle, the connecting rod 205 is moved upwards in the connecting sleeve 208, the gear 206 is moved upwards in the box body 103, the gear 206 is meshed with the fluted disc 202, the spring 207 is pressed while the connecting rod 205 is moved upwards, the spring 207 is contracted, after the gear 206 is meshed with the fluted disc 202, the connecting rod 205 is rotated through the handle, and the rotating connecting rod 205 drives the fluted disc 202 to rotate through the gear 206.

(2) Make bull stick 201 rotate in the bearing when fluted disc 202 rotates, bull stick 201 makes limiting plate 204 rotate, and contact with cardboard 203, and be located the below of cardboard 203, simultaneously when gear 206 rotates, make adapter sleeve 208 rotate in recess 209 through spring 207, block the back with limiting plate 204 at cardboard 203, then can't make apron 106 and box body 103 separate through the handle, thereby make the sealed effect in the box body 103 better, and when gas emergence is revealed, detect by baroceptor 102, report to the police through warning subassembly 104, in order to make the warning, the suggestion user handles.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gas self-closing valve with microleakage detects function, includes disk seat (5), its characterized in that: a valve cover (4) is fixed on the upper surface of the valve seat (5), a hand torsion bar (3) is rotatably connected on the upper surface of the valve cover (4), a pipeline (7) is fixed inside the valve seat (5), a detection mechanism (1) is arranged on the outer side of the pipeline (7), and a touch prevention mechanism (2) is arranged on the detection mechanism (1);

detection mechanism (1) is including fixing box body (103) in pipeline (7) outside, the upper surface swing joint of box body (103) has apron (106), the lower fixed surface of apron (106) has drum (101) that are located box body (103), the outside of drum (101) is fixed with sealing washer (105) of sliding connection at box body (103) internal perisporium, the interior left wall of box body (103) is fixed with baroceptor (102), the left side of box body (103) is fixed with warning subassembly (104).

2. The gas self-closing valve with the micro-leakage detection function according to claim 1, characterized in that: prevent touching mechanism (2) and include drive assembly and rotating assembly, drive assembly is including offering recess (209) at apron (106) lower surface, the inside of recess (209) is rotated and is connected with adapter sleeve (208), the outside of adapter sleeve (208) is fixed with spring (207), the lower fixed surface of spring (207) has gear (206), the last fixed surface of gear (206) has one end to run through and extends to connecting rod (205) of apron (106) upper surface.

3. The gas self-closing valve with the micro-leakage detection function according to claim 2, is characterized in that: the runner assembly includes bull stick (201) of connecting at apron (106) lower surface through the bearing rotation, the outside of bull stick (201) is fixed with fluted disc (202), the interior right wall of box body (103) is fixed with cardboard (203), the outside of bull stick (201) is fixed with limiting plate (204) of sliding connection at cardboard (203) lower surface.

4. The gas self-closing valve with the micro-leakage detection function as claimed in claim 1, characterized in that: the cylinder (101) is in a ring shape, and the sealing ring (105) is a rubber pad.

5. The gas self-closing valve with the micro-leakage detection function according to claim 3, is characterized in that: the limiting plate (204) does circular motion in the box body (103), and the connecting rod (205) linearly moves up and down in the connecting sleeve (208).

6. The gas self-closing valve with the micro-leakage detection function according to claim 2, is characterized in that: the upper surface of the cover plate (106) is provided with a through hole for the connecting rod (205) to penetrate through, and the connecting rod (205) is in clearance fit with the through hole.

7. The gas self-closing valve with the micro-leakage detection function according to claim 2, is characterized in that: the gear (206) is meshed with the fluted disc (202), and the connecting rod (205) penetrates through and extends to the outer side of the connecting sleeve (208).