Ventilation pipeline closing device

Abstract

The utility model discloses a ventilation pipeline closing device, a first pulling device and a second pulling device are used for pulling, the driving end of a closing execution mechanism is connected with the second pulling device in a pulling manner, and the other end of the closing execution mechanism is provided with a ventilation pipeline closing device. The problems that in the prior art, closing of the valve body can only be achieved through a closing structure in the valve body, but in order to add some auxiliary closing functions such as timing closing, the structure of the whole valve body is complex, the valve body cannot be smoothly closed, and the closing effect of the valve body is prone to being affected are solved. According to the ventilation pipeline closing device, the closing device is independently arranged on the ventilation pipeline outside the valve body, and driving force can be provided for the ventilation pipeline closing device through the action of the valve body. According to the air duct closing device, the air duct can be conveniently closed through the reasonable closing executing mechanism, and therefore the air duct can be smoothly opened or closed.

Description

Technical Field

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

[0002] As an energy source, natural gas has a wide range of uses in industrial production and daily life. Natural gas is generally transported through pipelines. A leak in this process can have serious consequences. To ensure timely action, control valves are typically installed on pipelines to prevent leaks.

[0003] In daily life, there are some safety hazards when using household gas pipelines. People often need to turn off the main gas valve when going out, or forget to turn off the valve when the household gas pipeline is not in use due to negligence, which can easily lead to gas poisoning, fire, explosion 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, the need to realize the timing function requires a relatively complex structure, resulting in the timing function not being able to effectively realize the closing of the valve body.

[0005] It can be seen that in the existing technology, 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, which makes the valve body unable to close smoothly, easily affecting the closing effect of the valve body. Utility Model Content

[0006] In view of this, the main purpose of the present invention is to provide a ventilation duct closing device with a reasonable structural design, which can close the ventilation duct under the action of a smaller driving force provided by the valve body; in particular, it can close the ventilation duct after the timing of the timing valve body ends.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0008] A ventilation duct closing device 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 to the second pulling device. The other end of the closing actuator is provided with a ventilation duct closing device.

[0009] In a preferred embodiment, the first pulling device and the second pulling device are magnetic members that attract each other.

[0010] In a preferred embodiment, the first pulling device and the second pulling device are magnets respectively;

[0011] 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.

[0012] In a preferred embodiment, the closing actuator includes: a closing rod, a fixed rod and a sliding rod, the middle portion of the closing rod is hinged to the fixed rod, the fixed rod is fixedly connected to the ventilation pipe, the lower end of the closing rod is connected to the ventilation pipe closing device, and the upper end of the closing rod is hinged to the sliding rod;

[0013] In a preferred embodiment, the other end of the sliding rod is fixedly connected to the second pulling device.

[0014] In a preferred embodiment, the closing actuator further comprises: a support plate, the support plate is provided with a support hole, and the sliding rod is arranged through the support hole.

[0015] In a preferred embodiment, the second pulling device is a permanent magnet, and a permanent magnet attracted to the second pulling device is provided on a side of the support plate close to the second pulling device.

[0016] In a preferred embodiment, the upper end of the support plate is a permanent magnet and is attracted to the second pulling device.

[0017] In a preferred embodiment, the upper end of the support plate is an armature attracted to the permanent magnet.

[0018] In a preferred embodiment, a support ring is protruded from the outer wall of one end of the sliding rod close to the closing rod, and a compression spring is sleeved between the support ring and the support hole.

[0019] In a preferred embodiment, a supporting protrusion is provided on a side of the support plate close to the second pulling device.

[0020] In a preferred embodiment, the invention further comprises: a sealing shell, wherein the sealing shell is sealed and 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.

[0021] In a preferred embodiment, the ventilation duct closing device is a sealing cover;

[0022] In a preferred embodiment, the lower end of the closing rod extends into the interior of the ventilation duct, and the sealing cover is fixedly connected to the lower end of the closing rod.

[0023] The ventilation duct closing device of the utility model has the following beneficial effects:

[0024] The ventilation duct closing device 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 to the second pulling device. The other end of the closing actuator is provided with a ventilation duct closing device.

[0025] The invention solves the problem in the prior art that the valve body can only be closed by the 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.

[0026] This ventilation duct closing device features a rationally designed structure. A separate closing device is provided on the ventilation duct outside the valve body. Furthermore, the valve body's movement, such as the rotation of a timing knob on the timing valve body, provides a driving force for the ventilation duct closing device. This ventilation duct closing device, through its rationally designed closing actuator, can conveniently close the ventilation duct, thereby smoothly opening or closing the ventilation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a structural schematic diagram of a ventilation duct closing device according to an embodiment of the present disclosure when installed on a valve body pipeline;

[0029] Figure 2 for Figure 1 The schematic diagram of the structure when the sealing shell is not installed is shown;

[0030] Figure 3 Schematic diagram of the structure of a ventilation duct closing device according to one embodiment of the present disclosure.

[0031]

Main component symbol description

[0032] 01. Ventilation pipe; 02. Timer; 03. Valve body;

[0033] 1. First pulling device; 2. Second pulling device;

[0034] 3. Close the actuator;

[0035] 31. Closing rod; 32. Fixed rod; 33. Sliding rod; 34. Support plate; 35. Support ring;

[0036] 4. Close the ventilation pipe device;

[0037] 5. Compression spring;

[0038] 6. Sealed shell. DETAILED DESCRIPTION

[0039] The ventilation duct closing device of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments of the present invention.

[0040] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this 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.

[0041] 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, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] 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 sequential order. 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, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. 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 figures. For example, if the device in the 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.

[0044] like Figure 1-Figure 3 As shown, the ventilation duct closing device includes: a closing actuator 3 that closes the gas pipeline; and a first pulling device 1 and a second pulling device 2 that interact to transmit driving force to the closing actuator 3. The first pulling device 1 and the second pulling device 2 act in a pulling manner, with the driving end of the closing actuator 3 being pulled and connected to the second pulling device 2. The other end of the closing actuator 3 is provided with a ventilation duct closing device 4.

[0045] By arranging the first pulling device 1 on the mechanism that triggers the requirement, when the first pulling device 1 meets the set requirement, it can act on the second pulling device 2, thereby achieving a driving effect on the closing actuator 3.

[0046] Here, the triggering mechanism can be a variety of triggering mechanisms. For example, in this application, it can be a valve body timer 03, which is located on the upper side of valve body 02. A first pulling device 1 is fixedly connected to the side wall of timer 03. When timer 03 rotates to a specified position, the first pulling device 1 attracts the second pulling device 2, thereby driving the closing actuator 3.

[0047] Preferably, the first pulling device 1 is arranged at the position of timer zero. When the timer 03 rotates to zero, the first pulling device 1 and the second pulling device 2 act.

[0048] 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 achieved.

[0049] In order to ensure a compact structure and to achieve the interaction between the first pulling device 1 and the second pulling device 2 when they reach a set distance (the closest position), it is preferred that the first pulling device 1 and the second pulling device 2 are magnetic members (one is a magnet and the other is a material that can be attracted to the magnet (including a magnet)) that attract each other.

[0050] The timer rotates during use, and when the timer ends, the distance between the first pulling device 1 and the second pulling device 2 reaches the set distance. The first pulling device 1 attracts the second pulling device 2, thereby pulling the closing actuator 3 to close the ventilation duct 01.

[0051] In one embodiment, the first pulling device 1 and the second pulling device 2 are magnets respectively; although the cost of two magnets is slightly increased, the magnetic effect is good and can ensure the smooth execution of the driving action.

[0052] 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. In other words, as long as the first pulling device 1 and the second pulling device 2 can attract each other when they reach a set distance, this will be sufficient. This reduces the cost of selecting permanent magnets, and magnetic materials (such as iron blocks) are low-cost.

[0053] In a preferred embodiment, the closing actuator 3 includes: a closing rod 31 for closing the ventilation pipe 01, a fixed rod 32 for hingedly connecting the closing rod 31, and a sliding rod 33 for pushing the closing rod 31. The fixed rod 32 is hinged to the middle part of the closing rod 31, the fixed rod 32 is fixedly connected to the ventilation pipe 01, the lower end of the closing rod 31 is connected to the ventilation pipe closing device 4, the upper end of the closing rod 31 is hinged to the sliding rod 33, and the other end of the sliding rod 33 is fixedly connected to the second pulling device 2.

[0054] The second pulling device 2 pulls the sliding rod 33 to slide, and the sliding rod 33 pulls the closing rod 31 to rotate around the end of the fixed rod 32, so that the other end of the closing rod 31 acts on the ventilation pipe 01, thereby closing the ventilation pipe 01.

[0055] In order to support the sliding rod 33 and ensure the stability of the sliding, the closing actuator 3 further includes a support plate 34, which has a support hole formed therein, through which the sliding rod 33 is inserted, thereby supporting the sliding rod 33.

[0056] In one embodiment, the second pulling device 2 is a permanent magnet (the first pulling device 1 can be a permanent magnet (and has an adsorption effect on the second pulling device 2), or can be a magnetic material such as iron), and a permanent magnet that is attracted to the second pulling device 2 is provided on the side of the support plate 34 close to the second pulling device 2, or the upper end of the support plate 34 is a permanent magnet and is attracted to the second pulling device 2, or the upper end of the support plate 34 is an armature that is attracted to the permanent magnet.

[0057] In a preferred embodiment, the second pulling device 2 is a magnet, the first pulling device 1 is an armature, and the support plate 34 is also an armature; the sliding rod 33 is made of a non-magnetic material. This ensures that the second pulling device 2 can be attracted to the first pulling device 1 and the support plate 34 respectively.

[0058] That is, when the first pulling device 1 adsorbs the second pulling device 2 , the adsorption force of the first pulling device 1 is greater than the adsorption force of the support plate 34 , so that the sliding rod 33 can be driven by the pulling of the first pulling device 1 .

[0059] During the timed operation, the first pulling device 1 rotates away from the second pulling device 2. At this time, the suction force exerted by the first pulling device 1 on the second pulling device 2 is less than the suction force exerted by the support plate 34 on the second pulling device 2. Therefore, under the suction force of the support plate 34, the second pulling device 2 drives the sliding rod 33 to slide, thereby pushing the closing rod 31 to rotate, thereby opening the ventilation pipe 01 and forming a gas passage.

[0060] In another embodiment, to similarly propel the sliding rod 33, a support ring 35 is protruding from the outer wall of the end of the sliding rod 33 closest to the closing rod 31. A compression spring 5 is sleeved between the support ring 35 and the support hole. As the first pulling device 1 attracts the second pulling device 2, the compression spring 5 is compressed by the support ring 35 and the support hole, accumulating energy and closing the ventilation duct 01. When the first pulling device 1 moves away from the second pulling device 2, the second pulling device 2, pushed by the compression spring 5, approaches the support plate 34. At this point, the sliding rod 32 drives the closing rod 31 to rotate, opening the ventilation duct 01.

[0061] To prevent the support plate 34 and the second pulling device 2 from sticking to each other due to prolonged contact, a support protrusion is provided on the side of the support plate 34 near the second pulling device 2. This reduces the contact area and ensures that the second pulling device 2 can slide smoothly while the first pulling device 1 is adsorbed on it, thereby ensuring that the ventilation duct 01 is closed.

[0062] To seal the closing actuator 3 and facilitate its insertion into the ventilation duct 01, thereby closing and opening the ventilation duct 01, the device further comprises a sealing housing 6, which is sealedly connected to the outer wall of the ventilation duct 01. The closing actuator 3 and the second pulling device 2 are both disposed within the sealing housing 6. The sealing housing 6 further prevents external misoperation that could affect the closing actuator 3. The sealing housing 6 is constructed of a non-magnetic material, ensuring that the first pulling device 1 can attract and act on the second pulling device 2 within the sealing housing 6.

[0063] In order to facilitate the closing of the ventilation duct 01, the ventilation duct closing device 4 is a sealing cover;

[0064] The lower end of the closing rod 31 extends into the ventilation pipe 01 and is fixedly connected to the sealing cover at the lower end of the closing rod 31. A sealing tube is protruding from the ventilation pipe 01, and a detachable sealing cover is arranged at the end of the sealing tube, so that the ventilation pipe 01 can be opened or closed stably.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A ventilation duct closing device, 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, a driving end of the closing actuator (3) is connected to the second pulling device (2) by pulling, and a closing ventilation duct device (4) is provided at the other end of the closing actuator (3).

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

3. The ventilation duct closing device 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 piece.

4. The ventilation duct closing device according to claim 1, characterized in that: The closing actuator (3) comprises: a closing rod (31), a fixed rod (32) and a sliding rod (33); the middle portion of the closing rod (31) is hingedly connected to the fixed rod (32); the fixed rod (32) is fixedly connected to the ventilation pipe (01); the lower end of the closing rod (31) is connected to the ventilation pipe closing device (4); and the upper end of the closing rod (31) is hingedly connected to the sliding rod (33); The other end of the sliding rod (33) is fixedly connected to the second pulling device (2).

5. The ventilation duct closing device according to claim 4, characterized in that: The closing actuator (3) further comprises a support plate (34), the support plate (34) is provided with a support hole, and the sliding rod (33) is arranged through the support hole.

6. The ventilation duct closing device according to claim 5, characterized in that: The second pulling device (2) is a permanent magnet, and a permanent magnet adsorbed to the second pulling device (2) is provided on one side of the support plate (34) close to the second pulling device (2), or the upper end of the support plate (34) is a permanent magnet and adsorbed to the second pulling device (2), or the upper end of the support plate (34) is an armature adsorbed to the permanent magnet.

7. The ventilation duct closing device according to claim 5, characterized in that: A support ring (35) is protruding from the outer wall of one end of the sliding rod (33) close to the closing rod (31), and a compression spring (5) is sleeved between the support ring (35) and the support hole.

8. The ventilation duct closing device according to claim 6 or 7, characterized in that: A supporting protrusion is provided on one side of the support plate (34) close to the second pulling device (2).

9. The ventilation duct closing device according to claim 4, characterized in that: Also includes: A sealing shell (6) is sealed and connected to the outer wall of the ventilation pipe (01); the closing actuator (3) and the second pulling device (2) are both arranged inside the sealing shell (6).

10. The ventilation duct closing device according to claim 9, characterized in that: The ventilation duct closing device (4) is a sealing cover; The lower end of the closing rod (31) extends into the interior of the ventilation pipe (01), and the sealing cover is fixedly connected to the lower end of the closing rod (31).

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