A kind of Pull breaking ualve
Technical field
The present invention relates to the technical field of safety devices in media feed system, and in particular to a kind of Pull breaking ualve.
Background technique
Pull breaking ualve be it is a kind of reduction medium leakage and stop media flow device, Pull breaking ualve be generally connected to equipment it
Between, in rated condition and defined weight range, when connection between off device, Jie for preventing transmitting in equipment can be played
The leakage of matter is a kind of is suitable for vehicle, ship, light aerocraft or the filling hydro carbons of mobile tank body container transport, solvent carbon
Safety device in the transportation system of hydrogen compound and chemicals.
In prior art, the pulling buckle structure of Pull breaking ualve is by rotation hook, tension ring, hook fixed ring and drawstring group
At rotation hook is set to two valve body end joints, and hook fixed ring is fixed therein hook is rotated on a valve body, and rotates
The claw of hook is hooked on another valve body, rotating in the gap between the rear end of hook and place valve body equipped with tension ring, is risen
Drawstring is connected on tight ring.When drawstring is by more than setting value external pull, tension ring will be disengaged from rotation hook rear end.Hook
Pawl rotates a certain angle under the reaction force of pretightning force, and left second valve body realizes separation under the effect of valve core spring power.It should
Structure is a kind of primary structure form for the Pull breaking ualve that fluid transmits safeguard protection effect.
The shortcomings that prior art: 1) hook is separated with valve body, assembly difficulty, by etc. extraneous factors interfere and be easy miss
Triggering separation causes bad impact to work system, wastes the unfavorable environmental protection of material.2) clamping dynamics is non-adjustable, product reliability
Low, qualification rate is low and rotates hook and compresses the active force of the second valve body and cannot be adjusted.If 3) pressing force for rotating hook reduces,
Drawstring will be will lead to, and triggering or erroneous trigger Pull breaking ualve disengage easily at work, influence normal fluid delivery operation.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of Pull breaking ualves, can adjust the pressing force of rotation hook, prevent
Only the erroneous trigger between valve body in normal work disengages.
Above-mentioned technical problem is solved by the following technical programs:
A kind of Pull breaking ualve, including the first valve body, the second valve body and pulling buckle structure, the end face of first valve body and described
Connection that the end faces of two valve bodies is opposite and the pulling buckle structure links closely;
The pulling buckle structure includes the tension ring for being connected with drawstring, clasp and revolving part, the clasp rotation connection
In first valve body, and the head of the clasp is buckled in second valve body, and the revolving part is set to the clasp
Head is equipped with tension ring between the tail portion of the clasp and first valve body.
In above-mentioned Pull breaking ualve, the annular edge of the end face of second valve body is raised along being equipped with, the head of the clasp
It is buckled in the protrusion.
In above-mentioned Pull breaking ualve, the revolving part rotation is connected to the head of the clasp and is pressed in the protrusion.
In above-mentioned Pull breaking ualve, the annular edge of the end face of first valve body connects along boss, the clasp rotation is equipped with
It is connected on the boss.
In above-mentioned Pull breaking ualve, there are gap, the tension rings between the tail portion of the clasp and first valve body
It is arranged in the gap.
In above-mentioned Pull breaking ualve, the inside of first valve body is equipped with the first elastic component, and first elastic component is close to institute
The one end for stating the end face of the first valve body is equipped with the first valve deck, and the inside of second valve body is equipped with the second elastic component, and described second
Elastic component is equipped with the second valve deck close to one end of the end face of second valve body, and second valve deck and first valve deck contradict
Connection, first elastic component and second elastic component are in compressive state at this time.
In above-mentioned Pull breaking ualve, first valve body is equipped with locating piece, and the drawstring is arranged in the locating piece.
Pull breaking ualve of the invention, compared with the background art caused by the utility model has the advantages that
Since the head of clasp is provided with revolving part, by adjusting revolving part elastic adjustable clasp head with
Pressing force between second valve body pulls drawstring because of fault in actual operation, and tension ring is pulled, since revolving part increases
The pressing force between clasp head and the second valve body is added, therefore the first valve body and the second valve body are not easy to disengage.
Detailed description of the invention
Fig. 1 is the Pull breaking ualve overall structure diagram of the embodiment of the present invention;
Fig. 2 is the Pull breaking ualve sectional view of the embodiment of the present invention.
Wherein, the 1, first valve body, 11, boss, the 12, first elastic component, the 13, first valve deck, the 2, second valve body, 21, protrusion,
22, the second elastic component, the 23, second valve deck, 3, pulling buckle structure, 31, tension ring, 32, drawstring, 33, clasp, 34, revolving part,
35, locating piece.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
In conjunction with shown in Fig. 1 to Fig. 2, specific embodiment provided by the present invention is a kind of Pull breaking ualve, including the first valve body 1,
The end face of second valve body 2 and pulling buckle structure 3, the end face of the first valve body 1 and the second valve body 2 is opposite and is linked closely by pulling buckle structure 3
Connection;
Pulling buckle structure 3 includes tension ring 31, clasp 33 and the revolving part 34 for being connected with drawstring 32, and the rotation of clasp 33 connects
It is connected to the first valve body 1, and the head of clasp 33 is buckled in the second valve body 2, revolving part 34 is set to the head of clasp 33, clasp
Tension ring 31 is equipped between 33 tail portion and the first valve body 1.
Preferably, conjunction is covered in the end face of the first valve body 1 and the end face of the second valve body 2 relatively, and note both ends of the surface connecting position is to connect
At conjunction, pulling buckle structure 3 is set to joint and connects the first valve body 1 and the second valve body 2, the end face of the first valve body 1 and the second valve body 2
Place's setting pulling buckle structure 3 is conducive to preferably connect between the first valve body 1 and the second valve body 2, and pulling buckle structure 3 can also be made more to step up
It gathers.
Preferably, the annular edge of the end face of the second valve body 2 is buckled in protrusion 21 along protrusion 21, the head of clasp 33 is equipped with,
It is opposite in the first valve body 1 and 2 end face of the second valve body and even in the case where, the head of clasp 33 is fastened in protrusion 21, protrusion
21 are ring-shaped, surround the whole circle in 2 end face of the second valve body one, and the quantity of clasp 33 then according to the actual situation depending on, clasp
33 are centrosymmetric with the center of the first valve body 1 is distributed in the edge of the first valve body 1.
Preferably, for protrusion 21 towards the end face direction of the second valve body 2 in horn-like, the rotation of revolving part 34 is connected to clasp 33
Head and be pressed in horn-like protrusion 21, horn-like protrusion 21, be conducive to help clasp 33 head preferably detain
Tight second valve body 2, it is possible to increase clasp 33 allows company between the first valve body 1 and the second valve body 2 to the tightening force of the second valve body 2
It connects more firm.
Preferably, the annular edge of the end face of the first valve body 1 is connected to boss 11 along boss 11, the rotation of clasp 33 is equipped with
On, this unlike the prior art, the prior art has used fixed ring, and clasp 33 is fixed on the first valve body 1 by fixed ring
On flange to realize the positioning of clasp 33.
Preferably, there are gap between the tail portion of clasp 33 and the first valve body 1, tension ring 31 is arranged on the first valve body 1
And it is located at gap location, tension ring 31 is arranged on the first valve body 1, between the tail portion and the first valve body 1 of clasp 33.
Preferably, the inside of the first valve body 1 is equipped with the first elastic component 12, and the first elastic component 12 is close to the end of the first valve body 1
The one end in face is equipped with the first valve deck 13, and the inside of the second valve body 1 is equipped with the second elastic component 22, and the second elastic component 22 is close to the second valve
One end of the end face of body 2 is equipped with the second valve deck 23, and the second valve deck 23 and the first valve deck 13, which contradict, to be connected, at this time the first elastic component 12
Compressive state is in the second elastic component 22, it should be pointed out that when the first valve body 1 and the second valve body 2 are in the shape of engagement
When state, at the first valve deck 13 being connect respectively with the first elastic component 12 and the second valve deck 23 being connect with the second elastic component 22
In competing state, and because of side and second valve deck 23 of first valve deck 13 far from the first elastic component 12 far from the second bullet
Property part 22 side be equipped with stretching structure, the conflict of stretching structure on the first valve deck 13 and the second valve deck 23 connects, so when
First elastic component 12 and the second elastic component 22 are in reduction length state, therefore when the first valve body 1 and the second valve body 2 separate,
First elastic component 12 will extend and push the first valve deck 13 to the end face of the first valve body 1, and the first valve deck 13 is out of first valve body 1
The end face lid of the first valve body 1 is closed in portion, and the second elastic component 22 also pushes the end of the second valve body 2 to by elongation and by the second valve deck 23
Face, the second valve deck 23 closes the end face lid of the second valve body 2 from the inside of the second valve body 2, to realize when the first valve body 1 and second
After valve body 2 separates, the first valve body 1 and the second valve body 2 are able to maintain the leakage of sealed valve body content.
Preferably, the first valve body 1 is equipped with locating piece 35, and drawstring 32 is arranged in locating piece 35, when Pull breaking ualve is touched, draws
Rope 32 is moved towards the direction far from the second valve body 2, and the pulling of drawstring 32 will drive tension ring 31 from the tail portion of clasp 33
It is separated from and.
To sum up, Pull breaking ualve of the invention, compared with the background art caused by the utility model has the advantages that
Since the head of clasp is provided with revolving part, by adjusting revolving part elastic adjustable clasp head with
Pressing force between second valve body pulls drawstring because of fault in actual operation, and tension ring is pulled, since revolving part increases
The pressing force between clasp head and the second valve body is added, therefore the first valve body and the second valve body are not easy to disengage, and can avoid visitor
Family is because of loss (loss in working hour needed for the loss of pumped (conveying) medium spilling, manual reset) caused by abnormal disengage;And due to rotation
Part can be relieved the pressure on the head of clasp, therefore can extend Pull breaking ualve life of product, will not be due to the pressing force of clasp deficiency
It scraps in advance;The mode that clasp is fixed on valve body is simplified, the use of clasp fixed ring is eliminated, can be reduced into indirectly
This.
It should be understood that various information are described in the present invention using term " first ", " second " etc., but these information
It should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from the present invention
In the case where range, " first " information can also be referred to as " second " information, and similar, " second " information can also be referred to as
" first " information.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement is also answered
It is considered as protection scope of the present invention.