CN219045586U

CN219045586U - Multi-triggering-mode discharging and cutting device

Info

Publication number: CN219045586U
Application number: CN202223593845.5U
Authority: CN
Inventors: 魏蛟
Original assignee: Hanzhong Nanjing Technology Co ltd
Current assignee: Hanzhong Nanjing Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-19
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of pipeline safety, in particular to a multi-trigger type release cutting device, which comprises a switch executing mechanism, a trigger mechanism and a locking mechanism, wherein the switch executing mechanism is connected with a valve; the trigger mechanism comprises an electric push rod, a piston assembly, a swing arm assembly and a manual trigger assembly, wherein the electric push rod and the piston assembly are connected with a push rod through a lever, the top of the push rod is connected with a sliding block, the sliding block is slidably mounted on a sliding rod, the two swing arm assemblies are connected through a tension spring and abut against two ends of the sliding block, and the piston assembly comprises a piston and a fusible plug mounted on the piston; the manual triggering assembly comprises a prying block and a jacking bearing; the locking mechanism is respectively connected with the switch executing mechanism and the triggering mechanism. The utility model is triggered by the electric push rod, the fusible plug on the piston and 3 modes of manual triggering, the triggering modes are diversified, the utility model is applicable to various scenes, and the safety of the system is improved.

Description

Multi-triggering-mode discharging and cutting device

Technical Field

The utility model relates to the technical field of pipeline safety, in particular to a multi-trigger type release cutting device.

Background

The triggering mode of opening and closing the valve in the existing pipeline safety system is single, the needle pin type or the rupture disk is adopted for discharging or cutting off, the triggering mode is single, and the application scene is limited.

Disclosure of Invention

The utility model solves the problems of single triggering mode and limited applicable scene of the valve in the related technology, and provides the release cutting device with multiple triggering modes, which is triggered by 3 modes of electric push rods, fusible plugs on pistons and manual triggering, is diversified in triggering mode, is applicable to various scenes, and can improve the safety of the system.

In order to solve the technical problems, the utility model is realized by the following technical scheme: a multiple trigger mode vent cutoff device comprising:

the switch executing mechanism is connected with the valve through a valve rod;

the trigger mechanism comprises an electric push rod, a first lever, a second lever, a piston assembly, a swing arm assembly and a manual trigger assembly, wherein two ends of the first lever are respectively hinged with the electric push rod and a push rod, the middle part of the first lever is hinged on a trigger mechanism support, two ends of the second lever are respectively hinged with the piston assembly and the push rod, the middle part of the second lever is hinged on the trigger mechanism support, the top of the push rod is connected with a sliding block, the sliding block is slidably arranged on a sliding rod, and the two swing arm assemblies are connected with each other through a tension spring and are propped against two ends of the sliding block; the piston assembly comprises a piston and a fusible plug arranged on the piston; the manual trigger assembly comprises a pry block used for being inserted into a pry bar, the pry block is connected with a jacking bearing through a supporting rod, and the jacking bearing is positioned below the sliding block;

and the locking mechanism is respectively connected with the switch executing mechanism and the triggering mechanism.

As a preferable scheme, the switch executing mechanism comprises a first piston cylinder body, a push rod and a first spring, wherein one end of the push rod is connected with a piston, and the other end of the push rod forms a T-shaped structure and is positioned between two swing arm assemblies to form a locking mechanism; the first spring is sleeved on the push rod, and a shifting fork connected with the valve rod is hinged on the push rod.

As the preferred scheme, the piston subassembly includes second piston cylinder body, second spring, piston rod, fusible plug, spring sleeve, piston rod slidable mounting is in the second piston cylinder body, second spring one end links to each other with spring sleeve inner wall, and the other end links to each other with the piston rod, the one end of second piston cylinder body links to each other with spring sleeve, and the end plate is installed to the other end, the fusible plug is installed on the end plate.

Preferably, the sliding block is slidably mounted on the sliding rod through a linear bearing.

As a preferable scheme, the swing arm assembly comprises an L-shaped swing arm, a rotating shaft and a rotating shaft bearing, wherein the swing arm is arranged on the rotating shaft, and the rotating shaft bearing is arranged at two ends of the rotating shaft; and a swing arm bearing is arranged at one end of the swing arm, which is contacted with the push rod.

Compared with the prior art, the utility model has the beneficial effects that: the utility model is triggered by the electric push rod, the fusible plug on the piston and 3 modes of manual triggering, and the triggering modes are diversified, so that the utility model is applicable to various scenes and can improve the safety of the system.

Drawings

FIG. 1 is a top view of the overall structure of the present utility model;

FIG. 2 is a right side view of the trigger mechanism of the present utility model;

FIG. 3 is a front view of the trigger mechanism of the present utility model;

fig. 4 is a cross-sectional view of the piston assembly of the present utility model.

In the figure:

1. the device comprises a switch executing mechanism, 101, a first piston cylinder body, 102, a push rod, 103, a first spring, 104, a piston, 105, a shifting fork, 2, a valve, 3, a triggering mechanism, 301, an electric push rod, 302, a first lever, 303, a push rod, 304, a second lever, 305, a triggering mechanism bracket, 306, a sliding block, 307, a sliding rod, 308, a tension spring, 309, a second piston cylinder body, 310, a second spring, 311, a piston rod, 312, a fusible plug, 313, a spring sleeve, 314, an end plate, 315, a prying block, 316, a jacking bearing, 317, a linear bearing, 318, a swinging arm, 319, a rotating shaft, 320, a rotating shaft bearing, 321 and a swinging arm bearing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 1 to 4, a multi-trigger type release cutting device comprises a switch executing mechanism 1, a trigger mechanism 3 and a locking mechanism, wherein the switch executing mechanism 1 is connected with a valve 2 through a valve rod; the triggering mechanism 3 comprises an electric push rod 301, a first lever 302, a second lever 304, a piston assembly, a swing arm assembly and a manual triggering assembly, wherein two ends of the first lever 302 are respectively hinged with the electric push rod 301 and the ejector rod 303 through pins, the middle part of the first lever 302 is hinged on a triggering mechanism bracket 305 through pins, two ends of the second lever 304 are respectively hinged with the piston assembly and the ejector rod 303 through pins, the middle part of the second lever 304 is hinged on the triggering mechanism bracket 305 through pins, the top of the ejector rod 303 is connected with a sliding block 306, the sliding block 306 is slidably mounted on a sliding rod 307, and the two swing arm assemblies are connected through a tension spring 308 and propped against two ends of the sliding block 306; the piston assembly includes a piston and a fusible plug 312 mounted on the piston; the manual trigger assembly comprises a pry block 315 for inserting a pry bar, wherein the pry block 315 is connected with a jacking bearing 316 through a supporting rod, and the jacking bearing 316 is positioned below the sliding block 306; the locking mechanism is respectively connected with the switch actuating mechanism 1 and the triggering mechanism 3.

In one embodiment, the switch actuating mechanism 1 comprises a first piston cylinder 101, a push rod 102 and a first spring 103, wherein one end of the push rod 102 is connected with a piston 104, and the other end forms a T-shaped structure and is positioned between two swing arm assemblies to form a locking mechanism; the first spring 103 is sleeved on the push rod 102, and a shifting fork 105 connected with the valve rod is hinged on the push rod 102.

In one embodiment, the piston assembly comprises a second piston cylinder 309, a second spring 310, a piston rod 311, a fusible plug 312 and a spring sleeve 313, wherein the piston rod 311 is slidably mounted in the second piston cylinder 309, one end of the second spring 310 is connected with the inner wall of the spring sleeve 313, the other end is connected with the piston rod 311, one end of the second piston cylinder 309 is connected with the spring sleeve 313, the other end is provided with an end plate 314, and the fusible plug 312 is mounted on the end plate 314.

In one embodiment, the slider 306 is slidably mounted to the slide bar 307 by a linear bearing 317.

In one embodiment, the swing arm assembly includes an L-shaped swing arm 318, a rotating shaft 319 and a rotating shaft bearing 320, the swing arm 318 is fixedly mounted on the rotating shaft 319, the rotating shaft bearing 320 is mounted at two ends of the rotating shaft 319, the rotating shaft bearing 320 is fixed on the trigger mechanism support 305 through a rotating shaft bearing seat and a bolt, the swing arm bearing 321 is mounted at one end of the swing arm 318 contacting the push rod 102, and in an initial state, one end of the t-shaped structure of the push rod 102 is clamped on the two swing arm bearings 321 through a gap between the two swing arm bearings 321, so as to form a locking mechanism.

The working principle is as follows:

1. triggering an electric push rod: when the electric push rod 301 is powered on, the electric push rod 301 acts, and acts on one end of the first lever 302 to push down, so that the other end of the first lever 302 is pushed up to act on the push rod 303, the push rod 303 acts on the slide block 306, so that the slide block 306 moves upwards along the slide rod 307, one end of the swing arm 318 contacted with the slide block 306 loses limit and rotates inwards (namely, the ends of the two swing arms 318 are mutually close), one end of the swing arm 318 contacted with the push rod 102 is separated to two sides, at the moment, the push rod 102 loses limit, and moves leftwards under the action of the first spring 103, and the push rod 102 drives the shift fork 105 to act, so that the opening or closing action of the valve 2 is realized.

2. Triggering a piston assembly: when the temperature rises to reach the melting point of the fusible plug 312, the core of the fusible plug 312 melts, the medium in the second piston cylinder 309 flows out, under the action of the second spring 310, the piston rod 311 acts downward, one end of the second lever 304 acts on the piston rod 311 to push down, the other end of the second lever 304 pushes up on the push rod 303, the push rod 303 acts on the sliding block 306, the sliding block 306 moves upward along the sliding rod 307, one end of the swing arm 318 contacted with the sliding block 306 loses limit and rotates inward (i.e. the ends of the two swing arms 318 are close to each other), one end contacted with the push rod 102 separates, at this time, the push rod 102 loses limit, the push rod 102 moves leftward under the action of the first spring 103, and the push rod 102 drives the shift fork 105 to act, so that the opening or closing action of the valve 2 is realized.

3. The manual trigger assembly triggers: the pry bar is inserted into the pry block 315, and the pry mechanism applies force to the slide block through a bearing of the manual trigger assembly, so that the slide block moves upwards along the slide bar. Because the slider 306 moves upwards, one end of the swing arm 318 contacting with the slider 306 loses limit and rotates inwards (i.e. the ends of the two swing arms 318 are close to each other), one end of the swing arm 318 contacting with the push rod 102 is separated to two sides, at this time, the push rod 102 loses limit, and moves leftwards under the action of the first spring 103, the push rod 102 drives the shifting fork 105 to act, so as to realize the opening or closing action of the valve 2.

The above is a preferred embodiment of the present utility model, and a person skilled in the art can also make alterations and modifications to the above embodiment, therefore, the present utility model is not limited to the above specific embodiment, and any obvious improvements, substitutions or modifications made by the person skilled in the art on the basis of the present utility model are all within the scope of the present utility model.

Claims

1. A multiple trigger mode vent shutoff device comprising:

the valve comprises a switch executing mechanism (1), wherein the switch executing mechanism (1) is connected with a valve (2) through a valve rod;

the trigger mechanism (3), trigger mechanism (3) include electric putter (301), first lever (302), second lever (304), piston assembly, swing arm subassembly and manual trigger assembly, the both ends of first lever (302) are articulated with electric putter (301) and ejector pin (303) respectively, the middle part of first lever (302) articulates on trigger mechanism support (305), the both ends of second lever (304) are articulated with piston assembly and ejector pin (303) respectively, the middle part of second lever (304) articulates on trigger mechanism support (305), the top of ejector pin (303) links to each other with slider (306), slider (306) slidable mounting is on slide bar (307), two link to each other through extension spring (308) between the swing arm subassembly and support the both ends of slider (306); the piston assembly includes a piston and a fusible plug (312) mounted on the piston; the manual trigger assembly comprises a pry block (315) for inserting a pry bar, the pry block (315) is connected with a jacking bearing (316) through a supporting rod, and the jacking bearing (316) is positioned below the sliding block (306);

the locking mechanism is respectively connected with the switch executing mechanism (1) and the triggering mechanism (3).

2. The multiple trigger mode vent cutoff device according to claim 1, wherein: the switch actuating mechanism (1) comprises a first piston cylinder body (101), a push rod (102) and a first spring (103), wherein one end of the push rod (102) is connected with a piston (104), and the other end of the push rod forms a T-shaped structure and is positioned between two swing arm assemblies to form a locking mechanism; the first spring (103) is sleeved on the push rod (102), and a shifting fork (105) connected with the valve rod is hinged on the push rod (102).

3. The multiple trigger mode vent cutoff device according to claim 1, wherein: the piston assembly comprises a second piston cylinder body (309), a second spring (310), a piston rod (311), a fusible plug (312) and a spring sleeve (313), wherein the piston rod (311) is slidably installed in the second piston cylinder body (309), one end of the second spring (310) is connected with the inner wall of the spring sleeve (313), the other end of the second spring is connected with the piston rod (311), one end of the second piston cylinder body (309) is connected with the spring sleeve (313), an end plate (314) is installed at the other end of the second piston cylinder body, and the fusible plug (312) is installed on the end plate (314).

4. The multiple trigger mode vent cutoff device according to claim 1, wherein: the sliding block (306) is slidably mounted on the sliding rod (307) through a linear bearing (317).

5. The multiple trigger mode vent cutoff device according to claim 1, wherein: the swing arm assembly comprises an L-shaped swing arm (318), a rotating shaft (319) and a rotating shaft bearing (320), wherein the swing arm (318) is arranged on the rotating shaft (319), and the rotating shaft bearing (320) is arranged at two ends of the rotating shaft (319); and a swing arm bearing (321) is arranged at one end of the swing arm (318) which is contacted with the push rod (102).