CN105805340A - Anti-burglary locking-controlled ball check valve - Google Patents

Anti-burglary locking-controlled ball check valve Download PDF

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Publication number
CN105805340A
CN105805340A CN201610349162.5A CN201610349162A CN105805340A CN 105805340 A CN105805340 A CN 105805340A CN 201610349162 A CN201610349162 A CN 201610349162A CN 105805340 A CN105805340 A CN 105805340A
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CN
China
Prior art keywords
valve
theft
dismounting
spanner
check valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610349162.5A
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Chinese (zh)
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CN105805340B (en
Inventor
赵小波
徐义洲
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Chongqing Shancheng Gas Equipment Co Ltd
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Chongqing Shancheng Gas Equipment Co Ltd
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Priority to CN201610349162.5A priority Critical patent/CN105805340B/en
Publication of CN105805340A publication Critical patent/CN105805340A/en
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Publication of CN105805340B publication Critical patent/CN105805340B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/60Handles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00Means to prevent accidental or unauthorised actuation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)

Abstract

The invention discloses an anti-burglary locking-controlled ball check valve. The anti-burglary locking-controlled ball check valve comprises a valve body, a bonnet and a valve element, wherein the valve element is connected with a wrench through a valve stem, the valve stem is positioned in a filler bin arranged on the side of the valve body, and a limiting stop tongue for limiting the rotating angle range of the wrench is formed on the wrench; an external port of the bonnet forms a structure of an anti-burglary connector, and a check valve structure is formed on a fluid channel of the bonnet; and a locking screw of which the head is provided with a prismatoidal tightening structure is arranged between the limiting stop tongue and the outer wall of the filler bin of the valve body. The locking screw is used for locking the wrench through the outer wall of the filler bin, and the wrench is unlocked when the locking screw is only separated from the outer wall of the filler bin or the limiting stop tongue. The anti-burglary locking-controlled ball check valve has the advantages that locking and burglary prevention can be effectively carried out, the mounting distance is fixed, and hidden leaking points are few; the locking screw is free of missing risks; and when the anti-burglary locking-controlled ball check valve is used in a household fuel gas pipeline, the trouble that running water flows back into the fuel gas pipeline due to the wrong connection of the gas pipeline and a water pipeline can be effectively eliminated.

Description

A kind of Anti-theft-dismounting lock control ball check valve
Technical field
The present invention relates to a kind of Anti-theft-dismounting ball valve, particularly to a kind of Anti-theft-dismounting lock control ball check valve.
Background technology
Ball valve be for chemical industry, fuel gas transmission and city gas supply, water service pipeline in a kind of conventional valve, its simple in construction, switch are reliable, long service life.Therefore, it is widely used in above-mentioned field.Ordinary construction ball valve can directly be manipulated by user on demand, end user is had management and control degree of freedom and motility, but the management unit of supply, water supply is just lost control, the forfeiture of this control, when front end engineering construction is not fully complete or does not possess supply water supply conditions, after valve is misused or operates without authorization, there is the potential safety hazard of tap water, gas leakage or stolen risk.Existing valvular prevent from opening without authorization that means mainly include valve rod is pulled Interface design is special purpose interface form, valve does not configure spanner or handwheel, can only be opened by special messenger's special spanner or special handwheel.This specific purpose tool necessarily adopts the convenient snap-in structure connected and take out, and it connects, and precision is low, fastness is poor, easily occurs skidding after using a period of time, and impact opens and closes effect;And physical dimension is big, carry inconvenience.Although occurring in that some have a lockable mechanism in the market, and carried out the ball valve of locking and unblock by private key, but these ball valves are not there is structure complexity, it is simply that there is the deficiency of inconvenient operation.Such as Chinese patent notification number CN204312756U, April 4 2012 publication date, the utility model patent of invention and created name " ball valve ", disclose a kind of ball valve, this ball valve is provided with one between handle and valve body and has lock bolt, and unlocks the locking device with locking by private key, and its Key structure size is little, easy to carry, it is laborsaving that locking conciliates latching operation.But this valve could unlock after needing to pull down lock bolt, there is complex operation and deficiency that screw is easily lost.For this, need to improve further.Ball check valve is a kind of ball valve that can prevent fluid from pouring in down a chimney, and joint ball valve is to be furnished with joint at the one or both ends interface of ball valve, thus forming fixing installation length size, to facilitate installation and to connect, improves pipeline laying efficiency;When joint is arranged to Anti-theft-dismounting structure, it constitutes Anti-theft-dismounting ball valve.In prior art, lack lockable and there is the ball check valve of Anti-theft-dismounting joint, for meeting the market demand, being badly in need of developing this series products.
Summary of the invention
The purpose of the present invention is aiming at the deficiencies in the prior art, a kind of Anti-theft-dismounting lock control ball check valve is provided, this ball valve forms Anti-theft-dismounting joint by valve gap, to prevent stolen tearing open, and on the fluid passage of valve gap, form one-way valve structures, can effectively prevent fluid from pouring in down a chimney, it is to avoid the press water that the equipment in fuel gas pipeline and water route of being connected to is likely to occur because of misconnection pours in down a chimney in fuel gas pipeline, cause air supply system water inlet to cause that gas facility damages;Ball valve utilizes the filling container outer wall that lock bolt passes through valve body that spanner is locked, and when lock bolt only departs from filling container outer wall or limiting block tongue, can spanner be unlocked;Its lock bolt only can be turned by specialized opener, effectively prevents misoperation of valve from opening or being opened without authorization, it is ensured that user uses safety, and opener physical dimension is little, easy to carry, and locking reconciliation latching operation is convenient, dynamics is little, long service life.
For achieving the above object, the present invention adopts the following technical scheme that.
A kind of Anti-theft-dismounting lock control ball check valve, including valve body, valve gap and spool, spool is connected to spanner by valve rod, and valve rod is positioned at the filling container that valve body side is provided with, and spanner is formed the limiting block tongue of restriction spanner rotational angle range;The external interface of described valve gap constitutes the structure of Anti-theft-dismounting joint, and is formed with one-way valve structures on the fluid passage of valve gap;It is provided with head between described limiting block tongue and the filling container outer wall of valve body and is formed with the lock bolt of prismatoidal screwing structure, lock bolt is for locking described spanner by filling container outer wall, and when lock bolt only departs from filling container outer wall or limiting block tongue, spanner is unlocked.
Adopt the present invention of preceding solution, the valve gap external-connected port of this ball valve is formed with Anti-theft-dismounting joint, effectively to prevent, valve is stolen from joint to be torn open, its size is locked into the structure that mounting distance is fixing, relative to the mode increasing external connector, it is effectively reduced leakage point, reduce the potential safety hazard existed because of leakage, the fluid passage of valve gap forms one-way valve structures, not only can effectively prevent fluid from pouring in down a chimney, the press water that the equipment being connected to fuel gas pipeline and water route is likely to occur because of misconnection is avoided to pour in down a chimney in fuel gas pipeline, air supply system water inlet is caused to cause that gas facility damages, it is also fully utilized by the useful space of the valve gap as adapter body, make compact conformation, it is particularly well-suited to the control valve of domestic gas meter, hidden danger is made to eliminate the end at burning line.This ball valve arranges lock bolt also by between the filling container outer wall of spanner and valve body, for spanner is formed lockup state with valve body.The filling container outer wall that locking is the limiting block tongue by spanner and valve body realizes, it need not can form locking by great dynamics very much, locking reliability is high, lock operation dynamics is little, only need to turn screw during unblock makes it release annexation with one of them, not needing to pull down screw, it is simple to operate, unblock is rapid, eliminates screw and loses hidden danger.Meanwhile, available limiting block tongue is hidden or covers lock bolt, can not turn with other general utility tools or spanner to further ensure that, and have acquisition compact structure.Owing to the screwing structure of lock bolt head is triangular prism or triangular hole, therefore, it is only by matched triangular shaped sleeve opener, or the opener with triangle head turns realization locking and conciliates latching operation, and other any general utility tools or spanner all can not unlock or lock;And lock bolt head adopts triangle screwing structure, it is ensured that the seamed edge of lock bolt head is not easily rounded, damage in use, guarantees that it has long service life structure.
Preferably, described Anti-theft-dismounting joint includes movable joint structure and Anti-theft-dismounting capping, and movable joint structure includes the coaxially rotating collar nut being sleeved on valve gap front tube section, and collar nut is stoped to deviate from by axle collar;Described Anti-theft-dismounting covers the movable set of rounded case shape on valve gap front tube section, and Anti-theft-dismounting capping is stoped it to deviate from by collar nut, and Anti-theft-dismounting capping is provided with elastic collar by inner card cage;The front end disk of collar nut is provided with technique collar by exterior bayonet slot, mobile with Anti-theft-dismounting capping at elastic collar, and when entering the exterior bayonet slot vacated out, Anti-theft-dismounting cap cover is in collar nut periphery, and is limited to only rotatable by elastic collar.Joint forms integrative-structure with valve gap, and its compact conformation, good rigidly, connectivity robustness is good, and simple in construction, easy to connect.Simultaneously, joint forms Anti-theft-dismounting structure by movable joint structure and Anti-theft-dismounting capping, the valve of this structure in a pre-installation time, technique collar coordinates in exterior bayonet slot, the position that Anti-theft-dismounting capping is moved outwardly relative to the interior of the tray is limited, only can slide along collar nut backward, and the wrench position of collar nut can be made to expose.During installation, first pass through the instruments such as spanner turn collar nut realize be connected with the air inlet pipe of gas meter, flow meter or the interface of other pipelines, technique collar is taken out or pull-out after being connected firmly, vacate out exterior bayonet slot, promote Anti-theft-dismounting capping further along, elastic collar is made to be stuck in exterior bayonet slot, now, the covering that Anti-theft-dismounting capping forms butt joint nut is hidden, and is stoped it to move forward and backward by elastic collar, also collar nut cannot be pulled again through spanner, thus realizing the purpose of Anti-theft-dismounting.This valve is particularly well-suited to gas meter, flow meter air intake control valve door, can pass through the Anti-theft-dismounting function of valve, it is prevented that by the pilferage air entrainment behavior that gas meter, flow meter is destroyed by dismounting valve and joint.In this programme, when technique collar adopts the c-shaped opening structure made of plastics, and when arranging pulling ear, can easily, extract from exterior bayonet slot easily.
Preferably, described one-way valve structures includes the single-way switch being slidably located in valve gap, valve gap forms the inlet and outlet of fluid passage respectively at the two ends of single-way switch, import can be formed closure by single-way switch, valve gap is formed the toroidal cavity that the import with fluid passage is connected, being formed with the blind hole with outlet on single-way switch, multiple windows that this blind hole is provided with by single-way switch connect with toroidal cavity.Being entered by import at fluid, utilize pressure reduction to promote single-way switch to move to right, fluid flows through the gap of import and single-way switch and enters in toroidal cavity, and enters in blind hole by the window on single-way switch, then from outlet outflow.When fluid flows into from outlet, due to differential pressure action, single-way switch moves to left, and import is formed closure by single-way switch head, thus stoping the fluid channel inlet from valve gap to recharge inlet ductwork.This valve is for during for combustion gas, in there is the equipment or facility accessed in water route, as because of the pipeline wrong on equipment, and when the pressure of press water is more than air pressure, water can enter the fluid access port of valve gap from the outlet of this valve, then under differential pressure action, promote single-way switch to move to left the closure formed valve gap section fluid channel inlet, fluid can be prevented effectively from and enter gas pipeline.Its simple in construction, easy to process, low cost of manufacture, and check function is reliable.
It is further preferred that described single-way switch is made up of switch body and deflating cap, deflating cap is hemispherical Shell structure, and by the ring-shaped groove in switch body and switch body snapping;Described blind hole and window are both formed in described switch body.Further ensure that simple in construction, easy to process, low cost of manufacture;Usual deflating cap adopts the elastomeric material such as rubber to make, and nonmetallic materials or coloured light metal material that switch body employing proportion is relatively small make, and are swift in motion with further non-return.
Preferably, described lock bolt is screwed on described limiting block tongue, and the head of lock bolt is hidden in the counterbore that limiting block tongue is provided with.When adopting this structure, the screwed hole generally screwed togather by counterbore and lock bolt is coaxially set, it is simple to thread Pilot hole and counterbore disposable drill and ream or bore ream machine, to improve working (machining) efficiency, reduce manufacturing cost.
Preferably, described spanner is in T shape, and spanner is sleeved on the outer end of described valve rod by the vertical portion at T-shaped middle part, and forms torque transfer arrangement by two parallel flat horizontal surfaces, and the outer end of valve rod is hidden in valve body.So that spanner forms T-shaped knob structure, the transmission of its moment of torsion is reliable, and compact conformation, simple, easy to process, low cost of manufacture.
Preferably, described spanner and described valve rod connect by screw is fixing, and this screw and described lock bolt have identical screwing structure, and the head of screw is hidden in the counterbore that described spanner is provided with, and are covered by gland.Can effectively prevent spanner from being dismantled without authorization, eliminate the hidden danger that unlocked by dismantling spanner, and can cramped construction further.
The present invention compared with prior art provides the benefit that, can effectively carry out locking and prevent robber from tearing open, and installation dimension is fixed, and can prevent fluid from pouring in down a chimney.Wherein, lock bolt only can be turned by specialized opener, effectively prevents misoperation of valve from opening or being opened without authorization, it is ensured that user uses safety, and opener physical dimension is little, easy to carry, locking reconciliation latching operation is convenient, dynamics is little, long service life, lock bolt is without losing hidden danger, for, in domestic gas pipeline, can effectively eliminating gas circuit and water route misconnection and cause tap water to pour in down a chimney the hidden danger in fuel gas pipeline, it is to avoid gas facility, instrument are damaged.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is for the structural representation axonometric drawing to the screw opener that the embodiment of the present invention 1 and 2 locks or unlocks.
Fig. 3 is the A A sectional view in Fig. 1 of the present invention.
Fig. 4 is the structural representation of the embodiment of the present invention 2.
Fig. 5 is the structural representation of the embodiment of the present invention 3.
Fig. 6 is for the structural representation axonometric drawing to the screw opener that the embodiment of the present invention 3 and 4 locks or unlocks.
Fig. 7 is the structural representation of the embodiment of the present invention 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1, referring to Fig. 1, Fig. 2, Fig. 3, a kind of Anti-theft-dismounting lock control ball check valve, including valve body 1 and valve gap 2, the external interface of valve gap 2 constitutes the structure of Anti-theft-dismounting joint, and is formed with one-way valve structures on the fluid passage of valve gap 2;Being connected to spool 3 by seal holder ring 9 between valve body 1 and valve gap 2, spool 3 is connected to spanner 5 by valve rod 4;The side of valve body 1 is formed with filling container, and valve rod 4 is positioned at filling container, is provided with airtight and watertight padding 10 between valve rod 4 periphery and filling container inwall, and airtight and watertight padding 10 is compressed by stuffing nut 11, to form being tightly connected between valve rod 4 and valve body 1;Spanner 5 is in T shape, spanner 5 is sleeved on the outer end of valve rod 4 by the vertical portion at T-shaped middle part, and form torque transfer arrangement by two parallel flat horizontal surfaces, and the outer end of valve rod 4 is hidden in the extension of valve body 1 filling container, spanner 5 and described valve rod 4 connect by screw 7 is fixing, the head of this screw 7 is hidden in the counterbore that spanner 5 is provided with, and the head of screw 7 is covered by gland 8;Being downwardly extending limited location gear tongue 51 on the side horizontal segment of spanner 5, the periphery, extension of valve body 1 filling container is formed with the spacing preiection 1a that two places are circumferentially distributed, and limiting block tongue 51 and two place spacing preiection 1a are collectively forming the restriction of spanner 5 rotational angle range.
Wherein, Anti-theft-dismounting joint includes movable joint structure and Anti-theft-dismounting capping 14, and movable joint structure includes the coaxially rotating collar nut 21 being sleeved on valve gap 2 front tube section, and collar nut 21 is stoped to deviate from by axle collar 22, and valve gap 2 front end is additionally provided with sealing gasket 23;Described Anti-theft-dismounting covers the movable set of 14 rounded case shapes on valve gap 2 front tube section, and Anti-theft-dismounting capping 14 is stoped it to deviate from by collar nut 21, and Anti-theft-dismounting capping 14 is provided with elastic collar 15 by inner card cage;The front end disk of collar nut 21 is provided with technique collar 16 by exterior bayonet slot, cover 14 at elastic collar 15 with Anti-theft-dismounting to move, and when entering the exterior bayonet slot vacated out, Anti-theft-dismounting capping 14 covers on collar nut 21 periphery, and is limited to only rotatable by elastic collar 15.
One-way valve structures includes the single-way switch being slidably located in valve gap 2, valve gap 2 forms the inlet and outlet of fluid passage respectively at the two ends of single-way switch, import can be formed closure by single-way switch, single-way switch stops it to deviate from from valve gap 2 by hole back-up ring 13, valve gap 2 is formed the toroidal cavity 2a that the import with fluid passage is connected, being formed with the blind hole 30a with outlet on single-way switch, multiple window 30b that this blind hole 30a is provided with by single-way switch connect with toroidal cavity 2a;Single-way switch is made up of switch body 30 and deflating cap 31, and deflating cap 31 is in hemispherical Shell structure, and passes through the ring-shaped groove in switch body 30 and switch body 30 snapping, and switch body 30 external diameter is more than or equal to deflating cap 31 external diameter;Described blind hole 30a and window 30b is both formed in described switch body 30.
Being screwed with lock bolt 6 on limiting block tongue 51, the thread segment front end of this lock bolt 6 is formed with the light bar segment 61 with cone point, and the diameter of light bar segment 61 is not more than the thread segment path of lock bolt 6;The head of lock bolt 6 is formed with the screwing structure of triangular prism shape, only to be turned by screw opener 12 with matching, this screw opener 12 is in socket wrench structure, the mating holes of the screwing structure of screw opener 12 front end is prismatic, the head of lock bolt 6 is hidden in the counterbore that limiting block tongue 51 is provided with, and this counter bore hole diameters can the external diameter of dip section more than screw opener 12;The filling container outer wall of valve body 1 is formed the undertaking taper hole receiving described lock bolt 6 to bore point., under ball valve closed mode, to turn lock bolt 6 by screw opener 12, making lock bolt 6 bore point and be against on receiving hole, thus being formed, spanner 5 being locked;Or, turn lock bolt 6 by screw opener 12, make lock bolt 6 bore point and exit undertaking taper hole, make spanner 5 unlock.
Embodiment 2, referring to Fig. 4, described lock bolt 6 is screwed on valve body 1 filling container outer wall, and limiting block tongue 51 is positioned at outside lock bolt 6 head, with when lock bolt 6 is tightened, spanner 5 is rotatable, limiting block tongue 51 laterally has perforation 52, this perforation 52 diameter more than screw opener 12 can the external diameter of dip section, to turn lock bolt 6 by screw opener 12, making lock bolt 6 head stretch into perforation 52 part, thus being formed, spanner 5 being locked;Or, turn lock bolt 6 by screw opener 12, make lock bolt 6 head deviate from perforation 52, and be positioned at inside limiting block tongue 51, thus releasing the lock-out state of spanner 5.
All the other structures of the present embodiment are identical with embodiment 1, do not repeat them here.
Embodiment 3, referring to Fig. 5, Fig. 6, the head 61 of described lock bolt 6 is formed with the screwing structure that Rhizoma Sparganii is poroid, and only to be turned by screw opener 12a with matching, this screw opener 12a has the head of the triangular prism shape that the screwing structure with lock bolt 6 front end coordinates.
All the other structures of the present embodiment are identical with embodiment 1, do not repeat them here.
Embodiment 4, referring to Fig. 7, the head 61 of described lock bolt 6 is formed with the screwing structure that Rhizoma Sparganii is poroid, and only to be turned by screw opener 12a with matching, this screw opener 12a has the head of the triangular prism shape that the screwing structure with lock bolt 6 front end coordinates.
All the other structures of the present embodiment are identical with embodiment 2, do not repeat them here.
Also formed and cylindrical section between head Rhizoma Sparganii shell of column and the thread segment of the lock bolt 6 in previous embodiment 1 and embodiment 2, this cylindrical section is coaxial with thread segment, cylindrical section diameter is more than Rhizoma Sparganii shell of column correspondence overall size, to be used as technological datum or clamping position by cylindrical section.
Although being described in conjunction with the accompanying embodiments of the present invention above, but those of ordinary skill in the art may also be appreciated that making various change or amendment in scope of the following claims, as the wedge shape work surface of the push rod in the present invention is made the mode that ecto-entad is gradually increased, depart from, by pulling push rod to realize clutch, the purpose surmounting state, extension spring etc. can be set bottom the inner face of corresponding push rod.These modifications and variations are understood as within the scope of the present invention and intention.

Claims (7)

1. an Anti-theft-dismounting lock control ball check valve, including valve body (1), valve gap (2) and spool (3), spool (3) is connected to spanner (5) by valve rod (4), valve rod (4) is positioned at the filling container that valve body (1) side is provided with, and spanner (5) is formed the limiting block tongue (51) of restriction spanner (5) rotational angle range;It is characterized in that, the external interface of described valve gap (2) constitutes the structure of Anti-theft-dismounting joint, and is formed with one-way valve structures on the fluid passage of valve gap (2);It is provided with head between described limiting block tongue (51) and the filling container outer wall of valve body (1) and is formed with the lock bolt (6) of prismatoidal screwing structure, lock bolt (6) is for locking described spanner (5) by filling container outer wall, and when lock bolt (6) only departs from filling container outer wall or limiting block tongue (51), spanner (5) is unlocked.
2. Anti-theft-dismounting lock control ball check valve according to claim 1, it is characterized in that, described Anti-theft-dismounting joint includes movable joint structure and Anti-theft-dismounting capping (14), movable joint structure includes the coaxially rotating collar nut (21) being sleeved on valve gap (2) front tube section, and collar nut (21) is stoped to deviate from by axle collar (22);The movable set of described Anti-theft-dismounting capping (14) rounded case shape is on valve gap (2) front tube section, Anti-theft-dismounting capping (14) is stoped it to deviate from by collar nut (21), and Anti-theft-dismounting capping (14) is provided with elastic collar (15) by inner card cage;The front end disk of collar nut (21) is provided with technique collar (16) by exterior bayonet slot;(14) are covered with Anti-theft-dismounting mobile at elastic collar (15), and when entering the exterior bayonet slot vacated out, Anti-theft-dismounting capping (14) covers on collar nut (21) periphery, and is limited to only rotatable by elastic collar (15).
3. Anti-theft-dismounting lock control ball check valve according to claim 1, it is characterized in that, described one-way valve structures includes the single-way switch being slidably located in valve gap (2), valve gap (2) forms the inlet and outlet of fluid passage respectively at the two ends of single-way switch, import can be formed closure by single-way switch, valve gap (2) is formed the toroidal cavity (2a) that the import with fluid passage is connected, single-way switch is formed the blind hole (30a) with outlet, multiple windows (30b) that this blind hole (30a) is provided with by single-way switch connect with toroidal cavity (2a).
4. Anti-theft-dismounting lock control ball check valve according to claim 3, it is characterized in that, described single-way switch is made up of switch body (30) and deflating cap (31), deflating cap (31) is in hemispherical Shell structure, and passes through the ring-shaped groove in switch body (30) and switch body (30) snapping;Described blind hole (30a) and window (30b) are both formed in described switch body (30).
5. Anti-theft-dismounting lock control ball check valve according to claim 1, it is characterized in that, described lock bolt (6) is screwed on described limiting block tongue (51), and the head of lock bolt (6) is hidden in the counterbore that limiting block tongue (51) is provided with.
6. the Anti-theft-dismounting lock control ball check valve according to any one in Claims 1 to 5, it is characterized in that, described spanner (5) is in T shape, spanner (5) is sleeved on the outer end of described valve rod (4) by the vertical portion at T-shaped middle part, and form torque transfer arrangement by two parallel flat horizontal surfaces, and the outer end of valve rod (4) is hidden in valve body (1).
7. the Anti-theft-dismounting lock control ball check valve according to any one in Claims 1 to 5, it is characterized in that, described spanner (5) and described valve rod (4) connect by screw (7) is fixing, this screw (7) and described lock bolt (6) have identical screwing structure, and the head of screw (7) is hidden in the counterbore that described spanner (5) is provided with, and covered by gland (8).
CN201610349162.5A 2016-05-24 2016-05-24 A kind of Anti-theft-dismounting lock control ball check valve Active CN105805340B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108591521A (en) * 2018-07-04 2018-09-28 德阳市迪信佳阀门制造有限公司 Novel and multifunctional valve
CN110848410A (en) * 2019-09-27 2020-02-28 浙江成丰燃气设备有限公司 Anti-theft check ball valve

Citations (10)

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CN103277572A (en) * 2013-05-28 2013-09-04 宁波日安阀门有限公司 Check ball valve provided with magnetic lock and key
CN205781300U (en) * 2016-05-24 2016-12-07 重庆市山城燃气设备有限公司 There is the lock controlled ball valve of Anti-theft-dismounting joint

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JPS5915806Y2 (en) * 1980-11-27 1984-05-10 日成企業株式会社 Ball valve type water stop valve with water theft prevention mechanism
JPS5915806A (en) * 1982-06-14 1984-01-26 Nippon Steel Corp Tracking method of light receiver
CN1807951A (en) * 2004-09-23 2006-07-26 朴室相 Valve with locking mechanism
CN2765019Y (en) * 2005-01-24 2006-03-15 韩忠旺 Locking type elastic seat sealing gate valve
CN201133488Y (en) * 2007-12-29 2008-10-15 浙江盾安阀门有限公司 Ball valve locking structure and its key
JP2010261466A (en) * 2009-04-09 2010-11-18 Itotekkou Co Ltd Gas cock
CN202188216U (en) * 2011-07-19 2012-04-11 董服义 Lock structure for valve
CN202441925U (en) * 2012-02-07 2012-09-19 重庆吉川燃气设备有限公司 Internal-threaded non-return theft-proof ball valve
CN103277572A (en) * 2013-05-28 2013-09-04 宁波日安阀门有限公司 Check ball valve provided with magnetic lock and key
CN205781300U (en) * 2016-05-24 2016-12-07 重庆市山城燃气设备有限公司 There is the lock controlled ball valve of Anti-theft-dismounting joint

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Publication number Priority date Publication date Assignee Title
CN108591521A (en) * 2018-07-04 2018-09-28 德阳市迪信佳阀门制造有限公司 Novel and multifunctional valve
CN108591521B (en) * 2018-07-04 2023-09-12 德阳市迪信佳阀门制造有限公司 Novel multifunctional valve
CN110848410A (en) * 2019-09-27 2020-02-28 浙江成丰燃气设备有限公司 Anti-theft check ball valve

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