Inclined wedge pushing closing mechanism for ventilation pipeline

Abstract

The utility model discloses an inclined wedge pushing closing mechanism for a ventilation pipeline, a first pulling device and a second pulling device are used for pulling, the driving end of a closing execution mechanism is in pulling connection with the second pulling device, and the other end of the closing execution mechanism is provided with a ventilation pipeline closing device; and the closing execution mechanism is an inclined wedge mechanism. The problems that in the prior art, in order to add some auxiliary closing functions such as timing closing, the structure of the whole valve body is complex, so that the valve body cannot be smoothly closed, and the closing effect of the valve body is easily affected are solved. According to the inclined wedge pushing closing mechanism for the ventilation pipeline, through the inclined wedge mechanism, the movement transmission direction of the first pulling device and the second pulling device can be conveniently changed, and therefore the ventilation pipeline is closed and opened outside the ventilation pipeline in a driving mode. Particularly, in the timing process of the timing valve body, transverse driving can be transmitted to the vertical direction, and closing of the ventilation pipeline is met.

Description

Technical Field

[0001] The utility model relates to the technical field of external auxiliary closing structure design of a gas valve body, in particular to a ventilation pipeline inclined wedge pushing closing mechanism. Background Art

[0002] As an energy source, gas has a wide range of uses in industrial production or daily life. Gas is generally transmitted through pipelines. When gas is transmitted in pipelines, once a leak occurs, the consequences will be very serious. When gas leaks during pipeline transmission, in order to be able to take timely measures, control valves are generally installed on pipelines to prevent gas leakage.

[0003] In daily life, there are some potential safety hazards when using household gas pipelines. People often need to close the main gas valve when going out, or forget to close the valve when the household gas pipeline is not in use, which can easily cause gas poisoning or cause fires, explosions and other accidents.

[0004] In the prior art, there are some timing valve bodies (such as self-closing valves or pressure reducing valves, etc.), but due to the small size of the valve body, but the need to realize the timing function requires a more complex structure, resulting in the timing function cannot achieve the closing of the valve body well.

[0005] It can be seen that in the prior art, the valve body can only be closed through the closing structure inside the valve body. However, in order to add some auxiliary closing functions, such as timed closing, the structure of the entire valve body is complicated, resulting in the valve body being unable to close smoothly, which easily affects the closing effect of the valve body. Utility Model Content

[0006] In view of this, the main purpose of the utility model is to provide a ventilation duct oblique wedge pushing closing mechanism which has a simple and reasonable structural design and can conveniently change the movement direction, thereby realizing the closing and opening actions of the ventilation duct.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] A ventilation duct oblique wedge push closing mechanism, comprising: a closing actuator, a first pulling device and a second pulling device, the first pulling device and the second pulling device pulling, the driving end of the closing actuator and the second pulling device pulling connection, the other end of the closing actuator is provided with a ventilation duct closing device;

[0009] In a preferred embodiment, the closing actuator is a wedge mechanism.

[0010] In a preferred embodiment, the first pulling device and the second pulling device are magnetic members that are magnetically attracted to each other.

[0011] In a preferred embodiment, the first pulling device and the second pulling device are magnets respectively;

[0012] In a preferred embodiment, one of the first pulling device and the second pulling device is a magnet and the other is a magnetic material piece.

[0013] In a preferred embodiment, the closing actuator includes: a horizontal rod and a vertical rod, one end of the horizontal rod is fixedly connected to the second pulling device, and the lower side of the other end of the horizontal rod is provided with an inclined groove structure, the upper end of the vertical rod slides in the inclined groove, and the lower side of the vertical rod is connected to a closing ventilation duct device to close or open the ventilation duct.

[0014] In a preferred embodiment, the closing actuator also includes: a guide shell, a transverse hole is opened on the upper side of the guide shell, a vertical hole is opened in the vertical direction of the guide shell, the transverse hole and the vertical hole are connected, the cross rod slides inside the transverse hole, and the vertical rod slides inside the vertical hole.

[0015] In a preferred embodiment, it further comprises: a sealing shell, wherein the sealing shell is sealingly connected to the outer wall of the ventilation duct, and the closing actuator and the second pulling device are both arranged inside the sealing shell.

[0016] In a preferred embodiment, an air inlet hole and an air outlet hole are opened inside the ventilation duct conductive sealing shell, and the ventilation duct closing device is arranged at the air outlet hole.

[0017] In a preferred embodiment, the air outlet includes: an air vent and a guide hole, the guide hole is opened at the center of the air outlet, the air vent is arranged around the guide hole, the lower end of the vertical rod extends into the guide hole, and the ventilation duct closing device is arranged on the upper side of the air outlet, so that the vertical rod drives the air outlet to be compressed and sealed or open the air outlet.

[0018] In a preferred embodiment, a return spring is arranged between the ventilation pipe closing device and the upper side of the guide hole.

[0019] In a preferred embodiment, the ventilation duct closing device is a sealing membrane, and a telescopic cavity is provided at the lower end of the guide shell. The size of the telescopic cavity is larger than the sealing membrane, so that the sealing membrane slides inside the telescopic cavity.

[0020] The ventilation duct oblique wedge push closing mechanism of the utility model has the following beneficial effects:

[0021] The ventilation duct oblique wedge push closing mechanism includes: a closing actuator, a first pulling device and a second pulling device, the first pulling device and the second pulling device have a pulling effect, the driving end of the closing actuator is pulled and connected with the second pulling device, and the other end of the closing actuator is provided with a ventilation duct closing device; the closing actuator is a oblique wedge mechanism.

[0022] The problem in the prior art that the valve body can only be closed by a closing structure inside the valve body, but in order to add some auxiliary closing functions, such as timed closing, the structure of the entire valve body is complicated, resulting in the valve body being unable to close smoothly, which easily affects the closing effect of the valve body.

[0023] The ventilation duct inclined wedge pushes the closing mechanism, and the movement transmission direction of the first pulling device and the second pulling device can be conveniently changed through the inclined wedge mechanism, so as to realize the closing and opening of the ventilation duct by driving outside the ventilation duct. In particular, the timing valve body can be driven horizontally to the vertical direction during the timing process to close the ventilation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a ventilation duct oblique wedge push closing mechanism according to an embodiment of the present disclosure;

[0026] Figure 2 It is a structural schematic diagram of the ventilation duct installation of the ventilation duct oblique wedge push closing mechanism according to one embodiment of the present disclosure;

[0027] Figure 3 It is a schematic structural diagram of the connection relationship between the horizontal rod and the vertical rod of the ventilation duct oblique wedge push closing mechanism according to an embodiment of the present disclosure;

[0028] Figure 4 It is a structural schematic diagram of a guide shell of a ventilation duct oblique wedge push closing mechanism according to an embodiment of the present disclosure.

[0029]

Main component symbol description

[0030] 01, ventilation duct; 011, air inlet; 012, air outlet;

[0031] 013, vent hole; 014, guide hole;

[0032] 02. Valve body;

[0033] 03. Timer;

[0034] 1. A first pulling device; 2. A second pulling device;

[0035] 3. Close the actuator;

[0036] 301, horizontal bar; 302, vertical bar; 303, inclined slot structure;

[0037] 304, guide housing;

[0038] 305, transverse hole; 306, vertical hole; 307, telescopic cavity;

[0039] 4. Ventilation pipe device; 41. Return spring;

[0040] 6. Sealed shell. DETAILED DESCRIPTION

[0041] The ventilation duct oblique wedge push closing mechanism of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments of the utility model.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] like Figure 1-Figure 4 As shown, the ventilation duct oblique wedge push closing mechanism comprises: a closing actuator 3 that can realize the closing action on the ventilation duct 01, and a first pulling device 1 and a second pulling device 2 that transmit driving force to the closing actuator 3 through interaction. The first pulling device 1 and the second pulling device 2 have a pulling action, and the driving end of the closing actuator 3 is pulled and connected with the second pulling device 2, and the other end of the closing actuator 3 is provided with a ventilation duct closing device 4;

[0047] In order to facilitate the closing of the actuator 3, the direction of movement is changed and the closing structure in a non-same direction is closed. The closing actuator 3 is a wedge mechanism.

[0048] By arranging the first pulling device 1 on the mechanism of the triggering requirement, when the first pulling device 1 reaches the set requirement, it can pull the second pulling device 2, thereby realizing the driving effect on the closing actuator 3. The inclined wedge mechanism closes the ventilation duct 01 by changing the direction of movement.

[0049] Here: the triggering requirement mechanism can be a variety of triggering requirements. For example, in the present application, it can be the timer 03 of the self-closing valve, and the timer 03 is arranged on the upper side of the valve body 02. The first pulling device 1 is fixedly connected to the side wall of the timer 03. When the timer 03 rotates to the specified position, the first pulling device 1 absorbs the second pulling device 2, thereby realizing the lateral driving effect on the closing actuator 3. Then, the lateral movement is converted into vertical movement through the inclined wedge mechanism, so that the ventilation duct 01 can be conveniently closed.

[0050] Preferably, the first pulling device 1 is arranged at the position of the timer at zero. When the timer 03 rotates to zero, the first pulling device 1 and the second pulling device 2 act.

[0051] Further preferably, when the timer 02 rotates to zero, the first pulling device 1 and the second pulling device 2 are closest to each other, so that the function between the first pulling device 1 and the second pulling device 2 can be better realized.

[0052] In order to ensure the compactness of the structure, the first pulling device 1 and the second pulling device 2 can achieve the effect between them when they reach the set distance position (the closest position). Therefore, preferably, the first pulling device 1 and the second pulling device 2 are selected as magnetic parts that have a magnetic attraction effect on each other.

[0053] The first pulling device 1 and the second pulling device 2 are magnets respectively (one is a magnet, and the other is a material that can be absorbed by the magnet (including a magnet)).

[0054] The timer rotates during use, and when the timing ends, the distance between the first pulling device 1 and the second pulling device 2 reaches the set distance. The first pulling device 1 absorbs the second pulling device 2, thereby pulling the closing actuator 3 to close the ventilation duct 01.

[0055] In one embodiment, the first pulling device 1 and the second pulling device 2 are magnets respectively; although the two magnets slightly increase the cost, the magnetic effect is good and can ensure the smooth progress of the driving action.

[0056] In another embodiment, one of the first pulling device 1 and the second pulling device 2 is a magnet and the other is a magnetic material. That is, as long as the first pulling device 1 and the second pulling device 2 can attract each other when they reach a set distance, the cost of selecting a permanent magnet is reduced, and the magnetic material (such as an iron block) is low in cost.

[0057] In a preferred embodiment, the closing actuator 3 of the inclined wedge mechanism includes: a horizontal bar 301 and a vertical bar 302, one end of the horizontal bar 301 is fixedly connected to the second pulling device 2, and a slanted groove structure 303 is provided on the lower side of the other end of the horizontal bar 301, the upper end of the vertical bar 302 slides in the slanted groove 303, and the lower side of the vertical bar 302 is connected to the closing ventilation pipe device 4, so that the ventilation pipe 01 is closed or conducted. The horizontal bar 301 is driven to slide horizontally by the second pulling device 2, and the slanted groove structure 303 of the horizontal bar 301 can push the vertical bar 302 downward, thereby realizing the up and down movement of the closing ventilation pipe device 4, so that the ventilation pipe 01 can be conveniently closed, and the ventilation pipe 01 can be closed under the set conditions (for example, when the timing reaches zero).

[0058] In order to ensure the movement direction of the horizontal rod 301 and the vertical rod 302, avoid deviation, and ensure the stable closing effect of the ventilation duct 01 during the closing execution. The closing actuator 3 also includes: a guide shell 304 that guides the horizontal rod 301 and the vertical rod 302. A horizontal hole 305 is opened on the upper side of the guide shell 304, and a vertical hole 306 is opened in the vertical direction of the guide shell 304. The horizontal hole 305 and the vertical hole 306 are connected, and the horizontal rod 301 slides inside the horizontal hole 305, and the vertical rod 302 slides inside the vertical hole 306. The inclined groove structure 303 of the horizontal rod 301 is set at the intersection of the horizontal hole 305 and the vertical hole 306.

[0059] In order to seal the gas flowing out of the gas outlet 012 and the gas inlet 011 to prevent leakage, it also includes: a sealing shell 6, which is sealed and connected to the outer wall of the ventilation pipe 01, and the closing actuator 3 and the second pulling device 2 are both arranged inside the sealing shell 6. Of course, the sealing shell 6 is made of non-magnetic material to ensure that the first pulling device 1 can absorb the second pulling device 2 inside the sealing shell 6.

[0060] In order to allow the inclined wedge mechanism to move up and down, the horizontal ventilation duct 01 can be closed. The ventilation duct 01 is connected to the sealing shell 6 and has an air inlet 011 and an air outlet 012. The ventilation duct closing device 4 is located at the air outlet 012. The gas flow direction of the ventilation duct 01 is changed to a vertical direction, thereby cooperating with the inclined wedge mechanism to meet the requirements of closing the ventilation duct 01. Of course, the ventilation duct 01 is a sealed structure between the air inlet 011 and the air outlet 012.

[0061] In order to meet the requirements of gas outlet, the vertical rod 302 can be guided to ensure the smooth operation of the inclined wedge mechanism. The gas outlet 012 includes: a gas vent 013 for circulating gas and a guide hole 014 for guiding the vertical rod 302. The guide hole 014 is opened at the center of the gas outlet 012, and the gas vent 013 is arranged around the guide hole 014. The lower end of the vertical rod 302 extends into the guide hole 014. The ventilation pipe closing device 4 is arranged on the upper side of the gas outlet 012, so that the vertical rod 302 drives the gas outlet 012 to be pressed and sealed or to open the gas outlet 012. Multiple gas vents 013 can meet the requirements of sufficient ventilation.

[0062] In order to ensure that the closed ventilation pipeline device 4 is reset, that is, after the function of the inclined wedge mechanism is lost, the outlet hole 012 can be automatically opened to ensure the conduction of the gas in the ventilation pipeline 01. A reset spring 41 is arranged between the closed ventilation pipeline device 4 and the upper side of the guide hole 014. The closed ventilation pipeline device 4 is lifted up by the reset spring 41, so that the closed ventilation pipeline device 4 is kept away from the outlet hole 012, thereby achieving the conduction of the outlet hole 012.

[0063] In order to ensure the sealing effect and the closing effect of the ventilation duct 01, the ventilation duct closing device 4 is a sealing film. In order to guide the relatively hard sealing film, a telescopic cavity 307 is provided at the lower end of the guide housing 304. The size of the telescopic cavity 307 is larger than the sealing film, so that the sealing film slides inside the telescopic cavity 307.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A ventilation duct inclined wedge push closing mechanism, characterized in that: include: A closing actuator (3), a first pulling device (1) and a second pulling device (2), wherein the first pulling device (1) and the second pulling device (2) have a pulling effect, the driving end of the closing actuator (3) is connected to the second pulling device (2) by pulling, and the other end of the closing actuator (3) is provided with a closing ventilation duct device (4); The closing actuator (3) is a wedge mechanism.

2. The ventilation duct inclined wedge push closing mechanism according to claim 1, characterized in that: The first pulling device (1) and the second pulling device (2) are magnetic parts that magnetically attract each other.

3. The ventilation duct inclined wedge push closing mechanism according to claim 2, characterized in that: The first pulling device (1) and the second pulling device (2) are magnets respectively; Alternatively, one of the first pulling device (1) and the second pulling device (2) is a magnet and the other is a magnetic material.

4. The ventilation duct inclined wedge push closing mechanism according to claim 1, characterized in that: The closing actuator (3) comprises: a horizontal rod (301) and a vertical rod (302); one end of the horizontal rod (301) is fixedly connected to the second pulling device (2); an inclined groove structure (303) is provided on the lower side of the other end of the horizontal rod (301); the upper end of the vertical rod (302) slides in the inclined groove structure (303); the lower side of the vertical rod (302) is connected to a closing ventilation duct device (4) to close or open the ventilation duct (01).

5. The ventilation duct inclined wedge push closing mechanism according to claim 4, characterized in that: The closing actuator (3) further comprises: a guide housing (304), wherein a transverse hole (305) is provided on the upper side of the guide housing (304), and a vertical hole (306) is provided in the vertical direction of the guide housing (304), wherein the transverse hole (305) and the vertical hole (306) are connected to each other, wherein the transverse rod (301) slides inside the transverse hole (305), and the vertical rod (302) slides inside the vertical hole (306).

6. The ventilation duct inclined wedge push closing mechanism according to claim 5, characterized in that: Also includes: A sealing shell (6), wherein the sealing shell (6) is sealingly connected to the outer wall of the ventilation duct (01), and the closing actuator (3) and the second pulling device (2) are both arranged inside the sealing shell (6).

7. The ventilation duct inclined wedge push closing mechanism according to claim 6, characterized in that: The ventilation duct (01) is connected to the sealing shell (6) and is provided with an air inlet (011) and an air outlet (012), and the ventilation duct closing device (4) is arranged at the air outlet (012).

8. The ventilation duct inclined wedge push closing mechanism according to claim 7, characterized in that: The air outlet (012) comprises: a vent hole (013) and a guide hole (014); the guide hole (014) is opened at the center of the air outlet (012); the air outlet (013) is arranged around the guide hole (014); the lower end of the vertical rod (302) extends into the guide hole (014); the ventilation duct closing device (4) is arranged on the upper side of the air outlet (012), so that the vertical rod (302) drives the air outlet (012) to be pressed and sealed or to open the air outlet (012).

9. The ventilation duct inclined wedge push closing mechanism according to claim 8, characterized in that: A return spring (41) is provided between the ventilation pipe closing device (4) and the upper side of the guide hole (014).

10. The ventilation duct inclined wedge push closing mechanism according to claim 8, characterized in that: The ventilation duct closing device (4) is a sealing membrane, and a telescopic cavity (307) is provided at the lower end of the guide shell (304). The size of the telescopic cavity (307) is larger than that of the sealing membrane, so that the sealing membrane slides inside the telescopic cavity (307).

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