CN220770267U - Gas shut-off valve - Google Patents

Abstract

The utility model relates to the technical field of valves, and particularly discloses a gas shut-off valve, which comprises a valve body, a valve cover and an actuating mechanism, wherein the valve body and the actuating mechanism are respectively arranged on two sides of the valve cover; in the above-mentioned scheme, through the joint cooperation of buckle and recess, can realize that actuating mechanism and valve gap are connected, both joint cooperation can play the effect of preventing tearing open, anticreep in axial direction, can also avoid actuating mechanism to incline relative valve gap simultaneously, makes the two have good axiality, reduces the frictional force that the motion of the functional unit in the actuating mechanism received to actuating mechanism still has the rotation degree of freedom relative valve gap, can rotate in good time in order to install the wiring in the installation.

Description

Gas shut-off valve

Technical Field

The utility model relates to the technical field of valves, in particular to a gas shut-off valve.

Background

The electromagnetic gas emergency cut-off valve is a semi-automatic safety valve, is mainly used for heating combustion medium pipelines such as urban gas, liquefied petroleum gas, natural gas and the like, and has the advantages of high integration degree, strong anti-disassembly capability, safety, reliability and the like compared with the traditional manual emergency cut-off valve or mechanical emergency cut-off valve.

In the related art, an electromagnetic gas emergency shut-off valve generally includes a valve body, a valve cover, an actuator and a core assembly connected in sequence, wherein the actuator drives the core assembly to contact with or separate from a sealing surface in the valve body to control an on-off state between a medium inlet and a medium outlet of the valve body. However, the actuating mechanism and the valve cover in the related art are generally connected by using threaded connectors, on one hand, the actuating mechanism and the valve cover are connected by using the threaded connectors, the disassembly prevention capability is limited, the malicious disassembly is caused, and on the other hand, the actuating mechanism after installation is inclined relative to the valve cover and the valve body due to the inconsistent tightness degree of each threaded connector, so that the friction resistance of functional components in the actuating mechanism in the moving process is larger, and the situation of abnormal valve opening hand feeling and even difficult valve opening exists.

Disclosure of Invention

The utility model discloses a gas shut-off valve, which aims to solve the technical problem that the gas shut-off valve in the related art is easy to disassemble.

In order to solve the problems, the utility model adopts the following technical scheme:

the application provides a gas shut-off valve, gas shut-off valve includes valve body, valve gap and actuating mechanism, the valve body with actuating mechanism divides to locate the both sides of valve gap, wherein, actuating mechanism with one of valve gap is provided with along its circumference distribution's buckle, and the other is provided with along its circumference extension's recess that sets up, the buckle with recess joint cooperation, so that actuating mechanism group in the valve gap, just the buckle sliding fit in the recess.

Further, one of the valve body and the valve cover is provided with a riveting thin wall, the other is provided with a flange corresponding to the riveting thin wall, and the riveting thin wall is in riveting cladding on the flange.

Further, in the case that the rivet thin wall is provided to the valve body, the thickness of the rivet thin wall is gradually reduced along a first direction, and the first direction is a direction in which the valve body faces the valve cover.

Further, the inner wall of the valve body is provided with a step surface adjacent to the riveting thin wall, and the flange of the valve cover is borne on the step surface.

Further, under the condition that the groove is formed in the valve cover, the valve cover is provided with first guide surfaces distributed on one side close to the actuating mechanism, the first guide surfaces are obliquely arranged relative to the axial direction of the valve cover, and the buckle is clamped and matched in the groove after passing through the first guide surfaces.

Further, the buckle is provided with a stopping surface and a second guide surface which are distributed along a second direction, the stopping surface is used for being in limit fit with the inner wall of the groove, the second guide surface is obliquely arranged relative to the axial direction of the actuating mechanism, the second direction is the direction that the actuating mechanism faces the valve cover, and the projection of the first guide surface perpendicular to the axial direction of the gas shut-off valve is located in the projection area of the second guide surface perpendicular to the axial direction of the gas shut-off valve.

Further, the execution mechanism is further provided with a reinforcing rib, and the reinforcing rib is attached to the wall of the groove under the condition that the buckle is clamped and matched in the groove.

Further, in the case that the number of the buckles is at least two, all the buckles are uniformly distributed along the circumferential direction of the actuating mechanism.

Further, under the condition that the buckle is clamped and matched in the groove, the end part of the actuating mechanism is abutted against the riveting thin wall.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

according to the fuel gas cut-off valve, the executing mechanism and the valve cover can be connected through the clamping fit of the clamping buckle and the groove, and compared with the mode that the executing mechanism and the valve cover in the related art are connected through the threaded connecting piece, the executing mechanism and the valve cover are in clamping fit in the axial direction, so that a good anti-disassembly and anti-disengagement effect can be achieved; moreover, the inclination of the actuating mechanism relative to the valve cover caused by inconsistent tightness of the threaded connecting pieces is avoided, so that the actuating mechanism and the valve cover have excellent coaxiality, frictional resistance of functional components in the actuating mechanism in the moving process is reduced, and the fuel gas cut-off valve is easy to open and close.

Meanwhile, the buckle can slide in the groove, so that the actuating mechanism has rotational freedom degree relative to the valve cover, and in the installation process, the actuating mechanism can be rotated timely to facilitate installation and wiring, and the assembly efficiency of the whole fuel gas shut-off valve is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is one of the schematic structural views of a fuel gas shutoff valve of an embodiment of the present application;

FIG. 2 is a schematic structural view of a valve body according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a valve cover according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of a valve cover according to an embodiment of the present application;

FIG. 5 is a schematic structural view of an actuator according to an embodiment of the present application;

FIG. 6 is a cross-sectional view of a fuel shut-off valve according to an embodiment of the present application;

FIG. 7 is a schematic illustration of the connection of a valve body to a bonnet in an embodiment of the present application;

FIG. 8 is a schematic structural view of a buckle according to an embodiment of the present application;

FIG. 9 is a second schematic view of the fuel gas shutoff valve according to the embodiment of the present application;

fig. 10 is a partially enlarged schematic view at a in fig. 9.

In the figure:

100. a valve body; 110. riveting a thin wall; 100a, step surface; 120. a media inlet; 130. a medium outlet; 200. a valve cover; 210. a flange; 220. a groove; 200a, a first guide surface; 300. an actuator; 310. a buckle; 310a, a stop surface; 310b, a second guide surface; 320. reinforcing ribs.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The gas shut-off valve provided in the embodiments of the present application will be described in detail below with reference to fig. 1 to 10 by way of specific embodiments and application scenarios thereof.

Referring to fig. 1, 2, 3 and 6, the embodiment of the present application discloses a gas shut-off valve, which includes a valve body 100, a valve cover 200 and an actuating mechanism 300, wherein the valve body 100 and the actuating mechanism 300 are disposed on two sides of the valve cover 200. The valve body 100 has a medium inlet 120 and a medium outlet 130, and the on-off state between the medium inlet 120 and the medium outlet 130 can be controlled by the operation of the actuator 300.

In this embodiment, please refer to fig. 3, 4, 5 and 6, one of the actuating mechanism 300 and the valve cover 200 is provided with the buckles 310 distributed along the circumferential direction thereof, the other is provided with the grooves 220 extending along the circumferential direction thereof, and the buckles 310 are in clamping fit in the grooves 220, so that the actuating mechanism 300 is connected with the valve cover 200, thereby having an anti-disengaging effect in the axial direction of the fuel gas shut-off valve, and the buckles 310 are in sliding fit in the grooves 220 along the extending track of the grooves 220 in the circumferential direction of the fuel gas shut-off valve, i.e. the actuating mechanism 300 can rotate relative to the valve cover 200.

Based on the above technical scheme, through the joint cooperation of buckle 310 and recess 220, can realize the equipment cooperation of actuating mechanism 300 and valve gap 200, compare in the mode that actuating mechanism 300 and valve gap 200 among the relevant technique adopted threaded connection spare to carry out the connection, actuating mechanism 300 and valve gap 200 joint cooperation can have good anti-disassembly, anticreep effect in axial direction, the condition that actuating mechanism is inclined relative to the valve gap that the inconsistent and resulting in of a plurality of threaded connection spare elasticity has still been avoided simultaneously, make actuating mechanism 300 and valve gap 200 have excellent axiality, reduce the frictional resistance that the functional part in the actuating mechanism 300 received in the motion process, make gas shut-off valve easily open and close.

Meanwhile, the actuating mechanism 300 has a certain degree of freedom of rotation relative to the valve cover 200, and the actuating mechanism 300 can be rotated at the right time when wiring is installed, so that the operation of installing and wiring is more convenient; in addition, when the actuator 300 and the valve cover 200 are connected, compared with the traditional mode of connecting by adopting a threaded connecting piece, the actuator 300 and the valve cover 200 do not need to be positioned in the circumferential direction, namely, the butt joint of the buckle 310 and the groove 220 has larger randomness, and the precision requirements in the processing process and the assembly process can be reduced.

In the embodiment of the present application, the actuator 300 includes a housing and a driving device provided in the housing, and the driving device may be an electromagnetic driving device, for example. It should be noted that, the assembly of the valve body 100, the valve cover 200, and the housing of the actuator 300 is intended to be improved, so that a description of a driving device in the actuator 300 is omitted, and the provision of the catch 310 or the groove 220 on the actuator 300 as described herein refers to the provision of the catch 310 or the groove 220 on the housing of the actuator 300.

It will be appreciated that during assembly of the valve cover 200 and the actuator 300, a certain elastic deformation capability of the buckle 310 is required to ensure that the buckle 310 can be smoothly snapped into the groove 220, while in order to ensure safety and reliability of the gas shut-off valve during use, the valve cover 200 is usually made of a metal material, so as to ensure that the valve cover 200 is not easily corroded and damaged during use, and the valve cover 200 made of the metal material is difficult to deform under stress, therefore, in the embodiment of the present application, please refer to fig. 3, 4 and 5, the buckle 310 is preferably disposed on the housing of the actuator 300, and the groove 220 is disposed on the valve cover 200. Illustratively, the housing of the actuator 300 may be a structural member made of nylon material, and the buckle 310 is integrally injection molded on the housing of the actuator 300.

In this embodiment, the valve body 100 and the valve cover 200 are connected and fixed by riveting, specifically, referring to fig. 2, 3, 4, 5 and 6, one of the valve body 100 and the valve cover 200 is provided with a riveting thin wall 110, and the other is provided with a flange 210 corresponding to the riveting thin wall 110, and the riveting thin wall 110 is riveted and coated on the flange 210 under the extrusion action of a press. On the one hand, the assembly connection is carried out by adopting the riveting mode, so that the quick and efficient assembly can be realized, the reliability and the stability of the connection can be ensured, and on the other hand, the riveting connection can provide enough connection strength and sealing effect, and the gas leakage or other safety problems can be effectively prevented.

In an alternative embodiment of the present application, please continue to refer to fig. 6, the riveting thin wall 110 is disposed on the valve body 100, the flange 210 is disposed on the valve cover 200, when the valve body 100 is in butt joint with the valve cover 200, the riveting thin wall 110 is located on the outer side of the flange 210, and under the effect that the riveting thin wall 110 is pressed inwards by the press machine, the riveting thin wall 110 is deformed inwards and tightly wrapped on the flange 210 of the valve cover 200. Generally, the size of the valve cover 200 is smaller than that of the valve body 100, the rivet thin wall 110 is provided on the valve body 100, and the flange 210 is provided on the valve cover 200, so that both can be easily manufactured.

Of course, in other alternative embodiments of the present application, referring to fig. 9 and 10, the riveting thin wall 110 may also be provided on the valve cover 200, where the flange 210 is provided on the valve body 100, and the riveting thin wall 110 may cover the flange 210 when pressed.

In a further embodiment, referring to fig. 2, 4 and 6, in the case that the rivet wall 110 is provided on the valve body 100 and the flange 210 is provided on the valve cover 200, the thickness of the rivet wall 110 is gradually reduced along a first direction, the first direction being a direction in which the valve body 100 faces the valve cover 200. The thickness of the riveting thin wall 110 is gradually reduced to form a certain transition, so that stress concentration of the riveting thin wall 110 in the process of compressive deformation can be reduced, and the situation that the riveting thin wall 110 breaks in the process of deformation is avoided; meanwhile, the end of the rivet thin wall 110 is thinner, and is more easily deformed and bent to be in a state of being fitted with the flange 210, thereby having a good wrapping effect on the flange 210, thereby ensuring the stability and sealing of the connection of the valve body 100 and the valve cover 200.

In a further technical solution, please continue to refer to fig. 2, 4 and 6, the inner wall of the valve body 100 has a step surface 100a adjacent to the riveting thin wall 110, when the valve body 100 and the valve cover 200 are assembled, the flange 210 of the valve cover 200 can be carried on the step surface 100a, and the step surface 100a has a pre-positioning function on the valve cover 200, so that the riveting thin wall 110 can be kept at a position opposite to the flange 210, and the riveting thin wall 110 can be accurately wrapped around the periphery of the flange 210 when being pressed.

As can be seen from the foregoing, the buckle 310 can be elastically deformed to be locked into the groove 220. In this embodiment, referring to fig. 4, 7 and 8, the valve cover 200 has a first guiding surface 200a distributed on a side close to the actuator 300, the first guiding surface 200a is inclined with respect to an axial direction of the valve cover 200, and the buckle 310 is engaged in the groove 220 after passing over the first guiding surface 200 a. When the buckle 310 contacts with the valve cover 200, the inclined first guide surface 200a can reduce friction between the buckle 310 and the valve cover 200, so that the buckle 310 can slide into the groove 220 more easily.

In a further technical solution, the buckle 310 has a stop surface 310a and a second guide surface 310b distributed along a second direction, the second direction is a direction of the actuator 300 facing the valve cover 200, the stop surface 310a is used for limiting cooperation with an inner wall of the groove 220, the second guide surface 310b is obliquely arranged relative to an axial direction of the actuator 300, and a projection of the first guide surface 200a perpendicular to an axial direction of the gas shutoff valve is located in a projection area of the second guide surface 310b perpendicular to the axial direction of the gas shutoff valve. In this way, when the valve cover 200 is abutted against the actuator 300, the second guiding surface 310b will first contact the valve cover 200 and abut against the edge of the first guiding surface 200a, and then deform until the actuator 300 is slidably clamped into the groove 220, so as to achieve smooth clamping of the actuator 300 and the valve cover 200, and after the buckle 310 is clamped into the groove 220, the stop surface 310a is in limit fit with the inner wall of the groove 220, so as to prevent the actuator 300 from being axially separated from the valve cover 200.

After the snap 310 is snap-fitted into the groove 220, the inner wall of the actuator 300 abuts against the outer wall portion of the valve cover 200 in the radial direction of the gas shut-off valve, thereby preventing the two from being separated in the radial direction.

In a further technical solution, please refer to fig. 3, 4, 5 and 6, the actuating mechanism 300 is further provided with a reinforcing rib 320, the reinforcing rib 320 may be disposed adjacent to the buckle 310, when the buckle 310 is in snap fit with the groove 220, the reinforcing rib 320 is located in the groove 220, and the reinforcing rib 320 is attached to the groove wall of the groove 220, on one hand, the reinforcing rib 320 can reinforce the structural strength of the actuating mechanism 300, on the other hand, based on the attaching and abutting of the reinforcing rib 320 and the groove wall of the groove 220, the actuating mechanism 300 has a certain rotation damping, when the wiring is installed, an operator needs to overcome the rotation damping to make the actuating mechanism 300 rotate in time, so as to facilitate the wiring operation, and after the installation is completed, the rotation damping can avoid the optional rotation of the actuating mechanism 300, so as to improve the stability of the connecting the actuating mechanism 300 with the valve cover 200.

In the embodiment of the present application, the number of the buckles 310 is at least one, and in the case that the number of the buckles 310 is at least two, the buckles 310 are uniformly distributed along the circumferential direction of the actuator 300. In this application optional embodiment, be provided with three buckle 310 on the actuating mechanism 300, three buckle 310 evenly distributed along the circumference of actuating mechanism 300, can ensure through circumference evenly distributed's three buckle 310 that the fixed effect of each direction is even, reduces actuating mechanism 300 because of the distortion or the deformation that the uneven atress produced, improves actuating mechanism 300 and valve gap 200 and is connected.

In a further technical solution, please refer to fig. 4, 5 and 6, under the condition that the buckle 310 is clamped and matched in the groove 220, the end of the actuator 300 abuts against the riveting thin wall 110, in this way, the valve cover 200 is completely hidden between the actuator 300 and the valve body 100, and the end of the actuator 300 has a shielding effect on the bending deformed riveting thin wall 110, and the end of the riveting thin wall 110 is difficult to observe from the outer surface of the whole fuel gas shut-off valve, so that the malicious disassembly of the fuel gas shut-off valve caused by the artificial prying of the riveting thin wall 110 can be effectively avoided, and a stronger disassembly preventing effect is provided.

It should be noted that, in this document, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model.

Claims (9)

1. The gas shut-off valve is characterized by comprising a valve body (100), a valve cover (200) and an actuating mechanism (300), wherein the valve body (100) and the actuating mechanism (300) are respectively arranged at two sides of the valve cover (200); wherein:

one of the actuating mechanism (300) and the valve cover (200) is provided with buckles (310) distributed along the circumferential direction of the actuating mechanism, the other is provided with grooves (220) extending along the circumferential direction of the actuating mechanism, the buckles (310) are in clamping fit with the grooves (220), the actuating mechanism (300) is assembled with the valve cover (200), and the buckles (310) are in sliding fit in the grooves (220).

2. The gas shut-off valve according to claim 1, wherein one of the valve body (100) and the valve cover (200) is provided with a rivet thin wall (110), and the other is provided with a flange (210) corresponding to the rivet thin wall (110), the rivet thin wall (110) being rivet-coated on the flange (210).

3. The gas shut-off valve according to claim 2, wherein, in the case where the rivet thin wall (110) is provided to the valve body (100), the thickness of the rivet thin wall (110) gradually decreases in a first direction, the first direction being a direction in which the valve body (100) faces the valve cover (200).

4. A gas shut-off valve according to claim 3, wherein the inner wall of the valve body (100) has a stepped surface (100 a) adjacent to the rivet thin wall (110), the flange (210) of the valve cover (200) being carried by the stepped surface (100 a).

5. The gas shut-off valve according to claim 2, wherein, in the case where the recess (220) is provided in the valve cover (200), the valve cover (200) has a first guide surface (200 a) distributed on a side close to the actuator (300), the first guide surface (200 a) is disposed obliquely with respect to an axial direction of the valve cover (200), and the clip (310) is snap-fitted into the recess (220) after passing over the first guide surface (200 a).

6. The gas shut-off valve according to claim 5, wherein the catch (310) has a stop surface (310 a) and a second guiding surface (310 b) distributed along a second direction, the stop surface (310 a) being adapted to be in a positive fit with an inner wall of the recess (220), the second guiding surface (310 b) being arranged obliquely with respect to an axial direction of the actuator (300), the second direction being a direction of the actuator (300) towards the valve cover (200);

the projection of the first guide surface (200 a) perpendicular to the axial direction of the gas shut-off valve is located in the projection area of the second guide surface (310 b) perpendicular to the axial direction of the gas shut-off valve.

7. The gas shut-off valve according to claim 6, wherein the actuator (300) is further provided with a reinforcing rib (320), and the reinforcing rib (320) is attached to a groove wall of the groove (220) when the buckle (310) is in snap fit with the groove (220).

8. The gas shut-off valve according to any one of claims 5 to 7, wherein in the case where there are at least two of the buckles (310), all of the buckles (310) are uniformly distributed along the circumferential direction of the actuator (300).

9. The gas shut-off valve according to any one of claims 5 to 7, wherein, in the case where the buckle (310) is snap-fitted into the groove (220), an end of the actuator (300) abuts against the rivet thin wall (110).