CN110195798A - A kind of Self-locking valve and system - Google Patents
A kind of Self-locking valve and system Download PDFInfo
- Publication number
- CN110195798A CN110195798A CN201910605017.2A CN201910605017A CN110195798A CN 110195798 A CN110195798 A CN 110195798A CN 201910605017 A CN201910605017 A CN 201910605017A CN 110195798 A CN110195798 A CN 110195798A
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- valve
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- self
- fastener
- valve rod
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- 238000000034 method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
Abstract
The present invention relates to valve technology fields, disclose a kind of Self-locking valve, including valve rod, valve stem top connects the fastener of driving stem rotation, it is characterized by: be provided with self-locking mechanism on the valve rod and fastener, self-locking mechanism include the opening and closing stroke slot being provided on fastener, be fixed on valve rod can in opening and closing stroke slot the pushing block of relative motion, be provided on fastener and valve rod respectively and mutually matched card slot；Fastener is rotatably assorted with valve rod and connect.Self-locking function when this Self-locking valve can be realized valve in off position, can not be again directly by valve opening after self-locking.It can cause the accident to avoid maloperation fault open valve.The safe operation of valve is improved, ensure that the personal safety of staff.
Description
Technical field
The present invention relates to valve technology fields, more particularly to a kind of Self-locking valve and system.
Background technique
Valve is for being opened and closed pipeline, control flow direction, the parameter (temperature, pressure and flow) of regulation and control pumped (conveying) medium
Pipeline fittings.Valve is the control unit in fluid delivery system, has cut-off, adjusting, water conservancy diversion, prevents adverse current, pressure stabilizing, divides
The functions such as stream or overflow pressure relief.For the valve of fluid control systems, from simplest shut-off valve to extremely complex automatic control system
Various valves used in system, kind and specification are quite various.
Valve is distributed in each corner of urban duct construction, such as water supply pipe, natural gas line, heat supply pipeline
Deng closely bound up safely with people's lives living environment.In addition, valve is also widely used in the fields such as chemical industry, pharmacy, control
Process device or production procedure.Valve at work, pipe-line maintenance, or occur emergency when, need emergency shutdown valve,
It avoids pipeline internal medium from continuing conveying to cause damages to downstream.But existing valve is in use, anyone can open
Or cutting-off valve, there is very big security risk and administrative vulnerabilities for above-mentioned random operability.It is used for above-mentioned valve
In particular problem, needing one kind can self-locking and safely and effectively valve.In the normal pumped (conveying) medium of pipeline, (possibility) occurs
Under urgent or fortuitous event, anyone can close cutting-off valve, avoid that accident or safety accident occurs, or reduce as far as possible
Damaged condition caused by accident.Also, valve is i.e. locked after closing, any per capita not directly again by valve opening.This valve
The unlatching of door, needing could be by the valve opening of closing by key by managerial personnel or the operator of authorization.It is anti-
Only in the case that emergency is untreated finish, valve causes accident again by fault open.
Summary of the invention
The present invention is intended to provide a kind of Self-locking valve and system, to solve above-mentioned technical problem in the prior art.
The technical solution adopted by the present invention are as follows:
A kind of Self-locking valve, including valve rod, valve stem top connect the fastener of driving stem rotation, the valve rod and engaging
Be provided with self-locking mechanism on part, self-locking mechanism include the opening and closing stroke slot being provided on fastener, be fixed on valve rod can
In opening and closing stroke slot the pushing block of relative motion, be provided on fastener and valve rod and mutually matched card slot respectively；Engaging
Part is rotatably assorted with valve rod and connect.
The Self-locking valve provided according to the present invention, the self-locking mechanism are off-position self-locking mechanism, and valve rod is in open position state
When, pushing block is in the origin or beginning of opening and closing stroke slot；The opening and closing stroke slot is arc, concentric with valve rod.
The Self-locking valve provided according to the present invention, the self-locking mechanism are open position self-locking mechanism, and valve rod is in off-position state
When, pushing block is in the end of opening and closing stroke slot；The opening and closing stroke slot is arc, concentric with valve rod.
The Self-locking valve provided according to the present invention is fixedly connected with handle on the fastener.
The Self-locking valve provided according to the present invention, the card slot prolongs fastener respectively and valve rod is axially disposed within plane of rotation
On.
The Self-locking valve provided according to the present invention, the stem exterior are arranged with the valve stem seal connector of coaxial arrangement, valve
Limited position mechanism is set on bar seal nipple and fastener.
The Self-locking valve provided according to the present invention, the position-limit mechanism include the top formed locking of valve stem seal connector
The holding section in portion and fastener bottom.
The Self-locking valve provided according to the present invention, the locking part are respectively equipped with two just different steps from holding section
Face, and mutually locking cooperation；Spacing between two step of locking part is adapted with fastener opening and closing stroke, is fixed on valve rod limited
Make the block piece of the interior movement between two step of locking part.
The Self-locking valve provided according to the present invention, the top of the valve rod, which is detachably fixed, is connected with fastener locking group
Part, fastener locked component include screw, and fastener is pressed on to the pressing plate of valve stem tip.
Another technical solution that the present invention uses are as follows:
A kind of Self-locking valve system, including any Self-locking valve in above-mentioned technical proposal, which is characterized in that also
Including solving locking key, solving locking key engages with card slot.
The beneficial effects of the present invention are:
Self-locking function when this Self-locking valve can be realized valve in off position can not again directly open valve after self-locking
It opens.It can cause the accident to avoid maloperation fault open valve.The safe operation of valve is improved, ensure that staff
Personal safety.
This Self-locking valve can also realize valve self-locking function in the open state, can not be again directly by valve after self-locking
It closes.Valve can be closed to avoid maloperation mistake, interrupt material conveying.
Detailed description of the invention
Fig. 1 is the structural schematic diagram (explosive view) of the preferred embodiment of the present invention；
Wherein, partial enlarged view and handle and the engaging convenient for clearly showing that structure, to give locking part in Fig. 1
The multi-angle of view figure in portion；
Fig. 2 is the schematic top plan view (omitting holding section and handle) of Fig. 1；
Fig. 3 is the structural schematic diagram (half section) of the preferred embodiment of the present invention；
Fig. 4 is the structural schematic diagram (full section) of the preferred embodiment of the present invention；
Fig. 5 is the work demonstration schematic diagram of the preferred embodiment of the present invention；
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
One step is described in detail.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation or
Person is constructed and operated in a specific orientation, therefore it is not considered as limiting the invention.In addition, term " first ", " the
Two ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；When
Right, it can also be mechanical connection, be also possible to be electrically connected；In addition, it can also be and be connected directly, be also possible to pass through centre
Medium is indirectly connected, or can be the connection inside two elements.For the ordinary skill in the art, Ke Yigen
The concrete meaning of above-mentioned term in the present invention is understood according to concrete condition.
Embodiment one
As Figure 1-Figure 5, the present invention provides a kind of Self-locking valve, including valve rod 8, connection driving valve at the top of valve rod 8
The fastener of bar rotation, is provided with self-locking mechanism on the valve rod 8 and fastener, self-locking mechanism includes being provided on fastener
Opening and closing stroke slot 16 is fixed on can be opened and closed the pushing block 11 of relative motion in stroke slot 16, being provided with respectively on valve rod 8
On fastener and valve rod 8 and mutually matched card slot；Fastener is rotatably assorted with valve rod 8 and connect.
The self-locking mechanism is off-position self-locking mechanism, and when valve rod 8 is in open position state, pushing block 11 is in opening and closing stroke slot
16 origin or beginning；The opening and closing stroke slot 16 is arc, concentric with valve rod 8.
8 outer cover of valve rod is equipped with the valve stem seal connector of coaxial arrangement, is arranged on valve stem seal connector and fastener
Limited position mechanism.
The position-limit mechanism includes the engaging of valve stem seal connector top formed locking part 5 and fastener bottom
Portion 19,
The locking part 5 is respectively equipped with two just different step surfaces, and mutually locking cooperation from holding section 19；Locking part
Spacing between 5 liang of steps is adapted with fastener opening and closing stroke, is fixed with and is limited between 5 liang of steps of locking part on valve rod 8
The block piece 7 of interior movement.
Specifically, the locking part 5 is formed with first step 13 and second step 12, first step 13 and second step 12
Between have gap, and first step 13 be higher than second step 12；The block piece 7 is outside by 8 cylindrical surface radial direction of valve rod
It stretches out, and is limited in the gap；The pushing block 11 is set to the top of block piece 7.
The block piece 7 is to stop column, blocking pin, stopper.
The pushing block 11 is set as key, corresponding that keyway is offered on the cylindrical surface of valve rod 8, and key is fixedly embedded in keyway
It is interior.
There are two the settings of block piece 7, is symmetrically distributed in the two sides of valve rod 8.Since block piece 7 is arranged in the gap
Interior, block piece 7 will receive the limitation of first step 13 and second step 12 when rotating with valve rod 8, without departing from out
Gap.
Usual first step 13 and second step 12 are oppositely arranged.First step 13 and second step 12 are arc plate,
It is integrally formed with locking part 5, valve stem seal connector.
The holding section 19 is circular ring shape, and the through-hole at center is inserted into for valve rod 8 to be fixed；It is opened and closed the inner arc of stroke slot 16
Face is run through with through-hole；Pushing block 11 wears and is limited in opening and closing stroke slot 16, and the origin or beginning of opening and closing stroke slot 16 can push
Block 11 is rotated with ovable valve stem 8；The bottom surface of the holding section 19 is formed with third step 18, third step 18 and first step 13,
Second step 12 is adapted to；The third step 18 and 12 face contact of second step, third step 18 when being rotated with handle 17 by
It is limited to first step 13.
In addition Self-locking valve further includes valve body, is mainly made of shell, sphere 2, sphere 2 is set in the housing in close
Envelope connection；The top of the shell is formed with valve stem seal connector；The top of the sphere 2 is fixedly connected with valve rod 8, and valve rod 8 is worn
It is protruding to cross valve stem seal connector, and connect with valve stem seal joint sealing；Holding section 19 is adapted and engages with locking part 5
Connection；Pushing block 11 and block piece 7 are fixed on the valve rod 8, specially on its periphery；(on holding section 19 admittedly to handle 17
Surely be connected with handle 17) apply torque M, pushing block 11 under the action of handle 17 driving stem 8 to drive sphere 2 rotate,
It is pushed by the origin or beginning of opening and closing stroke slot 16, at the same time, holding section 19 rotates in locking part 5 and drives block piece 7 the
One position locking, sphere 2 and shell form closed circuit closing valve；Handle 17 (being fixedly connected with handle 17 on holding section 19) is applied
Adding reactive torque T, pushing block 11 is fixed, and holding section 19 reversely dallies in locking part 5 and fastens locking in the second position, this
When pushing block 11 from opening and closing stroke slot 16 origin or beginning transform to end, and valve rod 8 and sphere 2 keep home position not rotate.
About valve body, technical solution belongs to the prior art.The valve deck 4 of (hard) sealing function is set in spherical shell,
And the both ends of spherical shell are fixedly connected with the valve deck 4 with piping connection.
The valve stem seal connector is cylindrical or truncated cone-shaped, and center has the avoid holes passed through for valve rod 8, through-hole wall
Sealing element is provided between valve rod 8.
The prior art is also belonged to about the sealed connection (sealing element) between valve rod 8 and valve stem seal connector.Such as: valve rod 8
Multiple-sealed, specially O-ring seal is provided between flange, it is also outer nested in valve rod 8 in the top of top layer's O-ring seal
There is outer press ring 6, outer press ring 6 compresses downwards O-ring seal, and valve rod 8 is blocked in O-ring seal deformation and sealing is played in the gap of flange
Effect.
Handle 17 is fixedly connected on the holding section 19, operator pulls handle 17 manually can rotate holding section 19
Band ovable valve stem 8 rotates.Of course, holding section 19, which can also configure pneumatic, electronic automatic valve opening, executes tool, it to be used for automatic on/off valve
Door.
The top of the valve rod 8, which is detachably fixed, is connected with fastener locked component, and fastener locked component includes screw
10, screw 10 screws in the pressing plate 10 that 8 top of valve rod is pressed in 8 end of valve rod and by fastener.
The working principle of the embodiment of the present invention one is:
It cooperates between each part of valve by design principle, assembly relation, connection relationship.Valve is in normal open position shape
When state (valve be access, open state (referring to figure five -1)), can directly operation handle 17 clockwise (industry rule, usually
It is to close clockwise) rotary closing valve (referring to figure five -2).Such as think again operation handle 17 Open valve (rotating handle counterclockwise
17), certain angle (being 90 degree in diagram specific angle depending on gap) at this point, handle 17 can only inversely dally, and valve according to
Be so in off-position state (i.e. valve be closed circuit, closed state (referring to figure five -3)), to reach valve off-position lock state,
I.e. valve, which can only close, to open, and when valve off-position cannot directly open again.The Self-locking valve is also referred to as off-position Self-locking valve.
Concrete analysis:
Referring to the working principle of following embodiment of the present invention two.
Embodiment two
As Figure 1-Figure 5, the present invention provides a kind of Self-locking valve systems, including embodiment one in above-mentioned technical proposal
Self-locking valve, further include solving locking key 20, solving locking key 20 engages with card slot.Solving locking key is inserted into the connection of card slot internal messing；Valve is opened
Qi Shi, reactive torque T drive holding section 19 to rotate, and are rotated backward by solving locking key band ovable valve stem 8, abolish the idle running of holding section 19
State, and holding section 19 drives block piece 7 in second position locking, and sphere 2 and shell form open circuit and open valve.
The card slot prolongs fastener respectively and valve rod 8 is axially disposed on plane of rotation.Specifically, card slot is divided into the first groove
14 and second groove 15.First groove 14 is vertically provided on the cylindrical surface of valve rod 8；Second groove 15 is vertically provided with described logical
On hole wall, the second groove 15 and the first groove 14, which can cooperate, is configured to card slot, this card slot is lockhole.
In addition, offering the notch of evacuation lockhole on the pressing plate 9 of fastener locked component, expose lockhole.
The working principle of the embodiment of the present invention two is:
It cooperates between each part of valve by design principle, assembly relation, connection relationship.Valve is in normal open position shape
When state (valve be access, open state (referring to figure five -1)), can directly operation handle 17 clockwise (industry rule, usually
It is to close clockwise) rotary closing valve (referring to figure five -2).Such as think again operation handle 17 Open valve (rotating handle counterclockwise
17), certain angle (being 90 degree in diagram specific angle depending on gap) at this point, handle 17 can only inversely dally, and valve according to
Be so in off-position state (i.e. valve be closed circuit, closed state (referring to figure five -3)), to reach valve off-position lock state,
I.e. valve, which can only close, to open.If desired it is again turned on valve, needs operator that dedicated solving locking key 20 is inserted into handle 17
Holding section 19 and valve rod 8 on cooperate made of in lockhole ((referring to figure five -4) under valve off-position state), the rotation of another mistake hour hands
Handle 17 is changed hands, valve can be normally-open)；It opens and removes solving locking key 20 (referring to figure five -5) after valve passage in place, at this time valve
Door is restored to normal operating conditions, and valve can be closed directly at this time, cannot directly open again after closing.
Concrete analysis:
As shown in figure, the face A and the face B are the top surface of first step 13 and second step 12 in locking part 5 respectively, and the face B is low
In the face A.There are off-position confined planes Q2, Q1 in the two sides of first step 13 and second step 12 respectively, and open position confined planes S1, S2 (are opened
Position, off-position are referring to above-mentioned explanation).Namely when block piece 7, which is resisted against the face Q2 and/or Q1, to be restricted, valve is to close at this time
State；And when block piece 7, which is resisted against the face S1 and/or S2, to be restricted, valve is open state at this time.K3, Q4 are holding section 19
The both ends of the surface of upper opening and closing stroke slot 16.K1, K2 are the two sides of key, and wherein K1 is driving plane, and key cooperation is caught in opening and closing row
In journey slot 16, its band ovable valve stem 8 can be pushed to rotate by the face K3 for being opened and closed stroke slot 16 on holding section 19.The face P is limited post
Or the periphery of spacer pin.E, the face F is the top surface of third step 18 on holding section 19, and the side S3 of third step 18 is holding section
19 off-position confined planes, Q3 are 19 open position confined planes of holding section.The face E of holding section 19 and the B plane-plane contact of locking part 5, the face F and A
Plane-plane contact, holding section 19 mesh together with locking part 5.
Such as figure five -1, the normal open position state of valve apply the moment M (rotation of operation handle 17 90 usually clockwise at this time
Degree), realize that valve is closed, such as figure five -2.In 17 rotary course of operation handle clockwise, stroke slot 16 is opened and closed on holding section 19
The face K3 abutted together with the face K1 of key on valve rod 8 always, to be rotated clockwise with ovable valve stem 8 and sphere 2, until valve rod
8 face P, which encounters to be restricted behind the face S1 of first step 13 and/or the face S2 of second step 12 simultaneously, can not continue to rotate (this
When each component cooperation present position be first position), can be realized valve closing, such as figure five -2.Above-mentioned valve rod 8 is rotating
In, sphere 2 does synchronous revolving movement always.
Such as figure five -2, valve, which is in, closes simultaneously self-locking state.1, when handle 17 continues to moment M, handle 17 is clockwise
It rotates, the face Q3 of third step 18 just contradicts the face Q2 of first step 13 in locking part 5 on holding section 19, therefore cannot be again
Continue to rotate clockwise handle 17, valve rod 8 not can rotate (each component cooperation present position at this time is first position).Valve
Always it is in off-position state.If 2, applying reverse bending moment T (operation handle 17 usually counterclockwise is counter to be turn 90 degrees) at this time, holding section
19 are only dallying, and cannot do synchronous rotary with ovable valve stem 8.In 17 reversion process of operation handle counterclockwise, the key on valve rod 8
The only interior idle running in opening and closing stroke slot 16, the i.e. face K1, the face K2 are dallied in opening and closing stroke slot 16, and the face K3, the face Q4 cannot
The face K1, the face K2 band ovable valve stem 8 is pushed to rotate.Valve is in close state at this time.Such as figure five -2, when handle 17 continues to turn counterclockwise
It is dynamic, when limitation, therefore handle 17 are kept out in the face S1 that first step 13 in locking part 5 is just encountered in the face S3 on holding section 19
It cannot be further continued for rotation (each component cooperation present position at this time is the second position).During this, handle 17 turns counterclockwise
The dynamic band ovable valve stem 8 that fails rotates synchronously Open valve, and valve is in off-position state always, i.e., valve is self-locking to be turned on, such as
Figure five -3.
Such as figure five -4, for valve in the case where being inserted into solving locking key 20, valve can just be normally carried out opening and closing operation.Valve off-position
State, rotational handle 17, handle 17 is idle running at this time, cooperates the second groove 15 and the first groove 14 and is configured to lockhole, and from
Solving locking key 20 is inserted into lockhole.The solution lock section of solving locking key 20, which engages the second groove 15 with the first groove 14, to be fastened together, real
Existing valve rod 8 can link with holding section 19.New transmission chain is formed between holding section 19 (handle 17), valve rod 8, operation handle 17 is inverse
Hour hands rotation, 2 synchronous revolving of valve rod 8 and sphere, i.e., openable valve, valve is in channel status, such as figure five -5.And if this
When, solving locking key 20 is transferred to, operation handle 17 rotates clockwise and can close valve, and cannot direct opening valve after closing
Door, principle ibid repeat no more.
Embodiment three
The technical solution of one Self-locking valve of embodiment can be applied in the not closable state of pipeline normal open.For example, set
Standby conveying refrigerant is for cooling down equipment.It is conveyed when refrigerant interrupts, equipment cannot sufficiently radiate, be burned.At this time this kind it is self-locking
Valve is open position Self-locking valve, specific to apply are as follows: valve, which is closed, is in off-position, and pipeline is closed circuit at this time；When needing to convey refrigerant,
Operation handle 17 opens valve, pipe path, and refrigerant starts to convey；Refrigerant conveying in, valve is in open position, cannot again by
It directly closes, valve is in open position lock state；I.e. valve, which can only be opened, to close, and when valve open position cannot directly close again.
When valve needs to close, engaged using solving locking key 20 with card slot；Valve can be closed at this time.
The specific technical proposal is:
A kind of Self-locking valve, including valve rod 8, the fastener of connection driving stem rotation, 8 He of valve rod at the top of valve rod 8
Self-locking mechanism is provided on fastener, self-locking mechanism includes the opening and closing stroke slot 16 being provided on fastener, is fixed on valve rod 8
On can in opening and closing stroke slot 16 pushing block 11 of relative motion, be provided on fastener and valve rod 8 and cooperate respectively
Card slot；Fastener is rotatably assorted with valve rod 8 and connect.
The self-locking mechanism is open position self-locking mechanism, and when valve rod 8 is in off-position state, pushing block 11 is in opening and closing stroke slot
16 end；The opening and closing stroke slot 16 is arc, concentric with valve rod 8.
When opening and closing stroke slot 16 is rotated counterclockwise with handle 17, holding section 19, end can push pushing block 11 to drive valve
Its sphere 2 connected thereon of bar 8 rotates counterclockwise, valve opening.Hereafter, when handle 17, holding section 19 rotate clockwise, pushing block
11 transform to origin or beginning (pushing block 11 " idle running ", actually pushing block in opening and closing stroke slot 16 from the end of opening and closing stroke slot 16
The phenomenon that 11 do not rotate, idle running is relative rotation caused by being rotated as holding section 19), and valve rod 8 and sphere 2 keep raw bits
It sets and does not rotate and valve is no longer closed, be in open position self-locking state.
The concrete operating principle of the open position Self-locking valve, the work referring to off-position Self-locking valve in comparative example two are former
Reason, it can be appreciated that without repeating.
Finally, it should be noted that the above various embodiments is only preferred embodiment of the invention to illustrate skill of the invention
Art scheme, rather than its limitations, when being less limitation the scope of the patents of the invention；Although referring to foregoing embodiments to the present invention
It is described in detail, those skilled in the art should understand that: it still can be to recorded in foregoing embodiments
Technical solution modify, or equivalent substitution of some or all of the technical features；And these modification or
Replacement, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution；In addition, by of the invention
Technical solution it is direct or indirect be used in other related technical areas, similarly include in scope of patent protection of the invention
It is interior.
The parts title that above each appended drawing reference indicates is as follows:
Valve body 1, valve seat 3, valve deck 4, locking part 5, outer press ring 6, block piece 7, valve rod 8, pressing plate 9, screw 10, pushes away sphere 2
Block 11, second step 12, first step 13, the first groove 14, the second groove 15, opening and closing stroke slot 16, handle 17, third platform
Rank 18, holding section 19, solving locking key 20.
Claims (10)
1. a kind of Self-locking valve, including valve rod, valve stem top connects the fastener of driving stem rotation, it is characterised in that: described
Self-locking mechanism is provided on valve rod and fastener, self-locking mechanism includes the opening and closing stroke slot being provided on fastener, is fixed on
On valve rod can opening and closing stroke slot in relative motion pushing block, respectively be provided with it is on fastener and valve rod and mutually matched
Card slot；Fastener is rotatably assorted with valve rod and connect.
2. Self-locking valve according to claim 1, it is characterised in that: the self-locking mechanism is off-position self-locking mechanism, valve rod
When in open position state, pushing block is in the origin or beginning of opening and closing stroke slot；The opening and closing stroke slot is arc, coaxial with valve rod
The heart.
3. Self-locking valve according to claim 1, it is characterised in that: the self-locking mechanism is open position self-locking mechanism, valve rod
When in off-position state, pushing block is in the end of opening and closing stroke slot；The opening and closing stroke slot is arc, coaxial with valve rod
The heart.
4. Self-locking valve according to claim 1, it is characterised in that: be fixedly connected with handle on the fastener.
5. Self-locking valve according to claim 1, it is characterised in that: the card slot prolongs fastener respectively and valve rod is axially set
It sets on plane of rotation.
6. Self-locking valve according to claim 1, it is characterised in that: the stem exterior is arranged with the valve rod of coaxial arrangement
Limited position mechanism is arranged on valve stem seal connector and fastener in seal nipple.
7. Self-locking valve according to claim 6, it is characterised in that: the position-limit mechanism includes at the top of valve stem seal connector
The locking part of forming and the holding section of fastener bottom.
8. Self-locking valve according to claim 7, it is characterised in that: the locking part and holding section are respectively equipped with height not
Two same step surfaces, and mutually locking cooperation；Spacing between two step of locking part is adapted with fastener opening and closing stroke, valve rod
On be fixed with the block piece for being limited in interior movement between two step of locking part.
9. Self-locking valve according to claim 1, it is characterised in that: the top of the valve rod, which is detachably fixed, is connected with card
Component locked component, fastener locked component include screw, and fastener is pressed on to the pressing plate of valve stem tip.
10. a kind of Self-locking valve system, including the Self-locking valve any in claim 1-9, which is characterized in that further include
Solving locking key, solving locking key engage with card slot.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110948757.3A CN113970010B (en) | 2019-07-05 | 2019-07-05 | Self-locking valve and system |
| CN201910605017.2A CN110195798A (en) | 2019-07-05 | 2019-07-05 | A kind of Self-locking valve and system |
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| JPH11201318A (en) * | 1998-01-13 | 1999-07-30 | Seibu Gas Co Ltd | Lock mechanism for valve |
| CN202451877U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Manual ball valve with state locking function |
| CN202769022U (en) * | 2012-09-14 | 2013-03-06 | 浙江日特科技有限公司 | Manual valve adjusting handle with auto-locking function |
| CN105822825A (en) * | 2015-01-22 | 2016-08-03 | 浙江三花股份有限公司 | Ball valve |
| CN108194698A (en) * | 2018-03-08 | 2018-06-22 | 淄博沃泰斯石化设备有限公司 | A kind of stepless locking device of valve rod |
| CN207648255U (en) * | 2017-12-29 | 2018-07-24 | 特尔阀门高科技有限公司 | The valve of locking device |
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| CN208764448U (en) * | 2018-08-03 | 2019-04-19 | 嘉兴艾迪西暖通科技有限公司 | A kind of self-locking gas valve |
| CN109751452A (en) * | 2017-02-11 | 2019-05-14 | 宁波会德丰铜业有限公司 | Lockable valve and its control method |
| CN210069104U (en) * | 2019-07-05 | 2020-02-14 | 自贡自高阀门有限公司 | Self-locking valve and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2932168B2 (en) * | 1996-08-22 | 1999-08-09 | 株式会社富士根産業 | "Ball valve with lock mechanism used for air conditioners, etc." |
| CN2566073Y (en) * | 2002-09-05 | 2003-08-13 | 玉环县环江阀门厂 | Control valve |
| CN203770706U (en) * | 2014-04-16 | 2014-08-13 | 浙江三花股份有限公司 | Ball valve |
| CN205956433U (en) * | 2016-08-09 | 2017-02-15 | 浙江三花制冷集团有限公司 | Ball valve |
| CN208651685U (en) * | 2018-07-24 | 2019-03-26 | 浙江三花制冷集团有限公司 | Ball valve |
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- 2019-07-05 CN CN201910605017.2A patent/CN110195798A/en active Pending
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| JPH11201318A (en) * | 1998-01-13 | 1999-07-30 | Seibu Gas Co Ltd | Lock mechanism for valve |
| CN202451877U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Manual ball valve with state locking function |
| CN202769022U (en) * | 2012-09-14 | 2013-03-06 | 浙江日特科技有限公司 | Manual valve adjusting handle with auto-locking function |
| CN105822825A (en) * | 2015-01-22 | 2016-08-03 | 浙江三花股份有限公司 | Ball valve |
| CN109751452A (en) * | 2017-02-11 | 2019-05-14 | 宁波会德丰铜业有限公司 | Lockable valve and its control method |
| CN207648255U (en) * | 2017-12-29 | 2018-07-24 | 特尔阀门高科技有限公司 | The valve of locking device |
| CN108194698A (en) * | 2018-03-08 | 2018-06-22 | 淄博沃泰斯石化设备有限公司 | A kind of stepless locking device of valve rod |
| CN208764448U (en) * | 2018-08-03 | 2019-04-19 | 嘉兴艾迪西暖通科技有限公司 | A kind of self-locking gas valve |
| CN109185490A (en) * | 2018-11-14 | 2019-01-11 | 浙江盾安智控科技股份有限公司 | Magnetic control valve and its component |
| CN210069104U (en) * | 2019-07-05 | 2020-02-14 | 自贡自高阀门有限公司 | Self-locking valve and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113970010A (en) | 2022-01-25 |
| CN113970010B (en) | 2022-07-29 |
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