CN105805340B - A kind of Anti-theft-dismounting lock control ball check valve - Google Patents
A kind of Anti-theft-dismounting lock control ball check valve Download PDFInfo
- Publication number
- CN105805340B CN105805340B CN201610349162.5A CN201610349162A CN105805340B CN 105805340 B CN105805340 B CN 105805340B CN 201610349162 A CN201610349162 A CN 201610349162A CN 105805340 B CN105805340 B CN 105805340B
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- China
- Prior art keywords
- valve
- theft
- spanner
- dismounting
- locking screw
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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
- F16K5/00—Plug 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
- F16K5/06—Plug 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
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a kind of Anti-theft-dismounting lock control ball check valve, including valve body, valve deck and spool, spool is connected with spanner by valve rod, and valve rod is located in the filling container that valve body side is equipped with, and the limiting block tongue of restricted spanner rotational angle range is formed on spanner；The external interface of valve deck constitutes the structure of Anti-theft-dismounting connector, and one-way valve structures are formed on the fluid channel of valve deck；The locking screw that head is formed with prismatoidal screwing structure is equipped between the limiting block tongue and the filling container outer wall of valve body, locking screw is used to lock the spanner by filling container outer wall, and when locking screw is only detached from filling container outer wall or limiting block tongue, spanner is unlocked.The invention has the advantages that can effectively carry out locking and prevent from stealing to tear open, mounting distance is fixed, and leakage hidden danger point is few；Locking screw is without hidden danger is lost, for that can effectively eliminate gas circuit and water route misconnection and tap water is caused to flow backward the hidden danger into fuel gas pipeline in domestic gas pipeline.
Description
Technical field
The present invention relates to a kind of Anti-theft-dismounting ball valve, in particular to a kind of Anti-theft-dismounting lock control ball check valve.
Background technique
Ball valve be for chemical industry, fuel gas transmission and city gas supply, water service pipeline in it is a kind of common
Valve, structure is simple, switch is reliable, long service life.Therefore, it is widely used in above-mentioned field.Ordinary construction ball valve
Can directly be manipulated by user as needed, there is control freedom degree and flexibility for end user, but to gas supply, supply water
Control is just lost for management unit, the forfeiture of this control, engineering construction does not complete or do not have gas supply in front end
When water supply conditions, after valve is misused or operates without authorization, there are the security risks of tap water, gas leakage, or stolen
Risk.It is now valvular to prevent from opening means without authorization mainly including that valve rod is pulled to Interface design for special purpose interface form, valve
Spanner or handwheel are not configured on door, can only be opened by special messenger's special spanner or dedicated handwheel.This specific purpose tool necessarily uses
Facilitate the snap-in structure of connection and taking-up, connection precision is low, fastness is poor, is easy to appear skidding, shadow after a period of use
It rings and opens and closes effect；And structure size is big, it is inconvenient to carry.Although occurring currently on the market some with locking machine
Structure, and by the ball valve of private key progress locking and unlock, but these ball valves are not in the presence of structure is complicated, are exactly in the presence of operation
Inconvenient deficiency.Such as Chinese patent notification number CN204312756U, April 4 2012 publication date, invention and created name
The utility model patent of " ball valve " discloses a kind of ball valve, which is provided with a kind of with locking between handle and valve body
Screw, and by the locking device of private key unlock and locking, Key structure size is small, easy to carry, locking and unlock
Rapid operation.But the valve could unlock after needing to remove locking screw, and there are the deficiencies that cumbersome and screw is easily lost.
For this purpose, needing to be further improved.Ball check valve be can prevent fluid flow backward a kind of ball valve, joint ball valve be ball valve one end or
Two end interfaces are furnished with connector, to form fixed installation length size, to facilitate installation and connection, improve pipeline laying effect
Rate；When connector is arranged to Anti-theft-dismounting structure, Anti-theft-dismounting ball valve is constituted.In the prior art, lack lockable and have anti-
The ball check valve for disconnecting head is stolen, to meet the market demand, is badly in need of developing such product.
Summary of the invention
The purpose of the present invention is to the deficiencies in the prior art, provide a kind of Anti-theft-dismounting lock control ball check valve, the ball valve
Anti-theft-dismounting connector is formed by valve deck, is torn open with preventing from being stolen, and form one-way valve structures on the fluid channel of valve deck, it can be effective
Prevent fluid from flowing backward, the pressure water for avoiding the equipment for being connected with fuel gas pipeline and water route from being likely to occur by misconnection flows backward to combustion gas
In pipeline, air supply system is caused to intake and gas facility is caused to damage；Ball valve is passed through using locking screw outside the filling container of valve body
Wall locks spanner, and when locking screw is only detached from filling container outer wall or limiting block tongue, can unlock to spanner；Its locking spiral shell
Nail can only be turned by specialized opener, and misoperation of valve is effectively prevent to open or opened without authorization, it is ensured that user using safe,
And opener structure size is small, easy to carry, locking and unlock are easy to operate, dynamics is small, long service life.
To achieve 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 deck and spool, spool are connected with spanner, valve by valve rod
Bar is located in the filling container that valve body side is equipped with, and the limiting block tongue of restricted spanner rotational angle range is formed on spanner；It is described
The external interface of valve deck constitutes the structure of Anti-theft-dismounting connector, and one-way valve structures are formed on the fluid channel of valve deck；The limit
The locking screw that head is formed with prismatoidal screwing structure, locking screw are equipped between position gear tongue and the filling container outer wall of valve body
For being locked by filling container outer wall to the spanner, and when locking screw is only detached from filling container outer wall or limiting block tongue,
Spanner is unlocked.
Using the present invention of preceding solution, the valve deck external-connected port of the ball valve is formed with Anti-theft-dismounting connector, to have
Effect prevents valve from tearing open from joint is stolen, and size is locked into the fixed structure of mounting distance, relative to increase external connector
Mode, leakage point can be effectively reduced, reduce due to leakage existing for security risk, the fluid channel of valve deck forms check valve
Structure can not only effectively prevent fluid to flow backward, and the equipment for being connected with fuel gas pipeline and water route is avoided to be likely to occur because of misconnection
Pressure water flows backward into fuel gas pipeline, and air supply system is caused to intake and gas facility is caused to damage, and is also fully utilized by as connecing
The useful space of the valve deck of head main body, makes compact-sized, especially suitable for the control valve of domestic gas meter, eliminates hidden danger and exists
The end of burning line.The ball valve is also by being arranged locking screw between spanner and the filling container outer wall of valve body, for that will pull
Hand and valve body form lockup state.Locking is realized by the limiting block tongue of spanner and the filling container outer wall of valve body, is not required to
Locking can be formed by great dynamics very much, lock high reliablity, lock operation dynamics is small, and when unlock, which need to only turn screw, makes itself and its
One of release connection relationship, be not required to remove screw, easy to operate, unlock rapidly, eliminates screw and loses hidden danger.Together
When, locking screw is hidden or covered using limiting block tongue, cannot be turned with other general utility tools or spanner with further ensuring that,
And has and obtain compact structure.Due to locking screw head screwing structure be in triangular prism or triangular hole, can only lead to
Matched triangular shaped sleeve opener is crossed, or the opener with triangle forming head turns and realizes locking and unlocking behaviour
Make, other any general utility tools or spanner cannot be unlocked or be locked；And locking screw head uses triangle screwing structure, really
The seamed edge for protecting locking screw head is not easy rounded, damage in use, ensures that it uses the longevity with longer from structure
Life.
Preferably, the Anti-theft-dismounting connector includes movable joint structure and Anti-theft-dismounting capping, and movable joint structure includes coaxially may be used
The collar nut of rotation being sleeved on valve deck front tube section, collar nut are prevented by axis retainer ring；The antitheft opening
The movable set of rounded housing shape is covered on valve deck front tube section, Anti-theft-dismounting capping prevents its abjection by collar nut, antitheft
It seals off lid and elastic collar is equipped with by inner card cage；The preceding end disc of collar nut is equipped with technique retainer ring by exterior bayonet slot, in elasticity
Retainer ring with Anti-theft-dismounting cover move, and enter vacate out exterior bayonet slot when, Anti-theft-dismounting cap cover in collar nut periphery, and by
Elastic collar is limited to only can be rotated.Connector and valve deck form integral structure, compact-sized, and rigidity is good, and connectivity robustness is good,
And structure is simple, it is easy to connect.Meanwhile connector covers to form Anti-theft-dismounting structure by movable joint structure and Anti-theft-dismounting, the structure
Valve in a pre-installation when, technique retainer ring cooperates in exterior bayonet slot, and the position that is moved outwardly relative to the interior of the tray of Anti-theft-dismounting capping is limited, and only may be used
It is slided backward along collar nut, and the wrench position of collar nut can be made to expose.When installation, twisted first by tools such as spanners
Dynamic collar nut realization is connect with the interface of the air inlet pipe of gas meter, flow meter or other pipelines, technique retainer ring taken out after being connected firmly or
It pulls out, vacates out exterior bayonet slot, push Anti-theft-dismounting capping further along, be stuck in elastic collar in exterior bayonet slot, at this point, Anti-theft-dismounting covers
The covering for forming docking head nut is hidden, and prevents its back-and-forth motion by elastic collar, also can not pull connector by spanner again
Nut, to realize the purpose of Anti-theft-dismounting.This valve can pass through the antitheft of valve especially suitable for gas meter, flow meter air intake control valve door
It tears function open, prevents the pilferage air entrainment behavior destroyed by disassembly valve and connector to gas meter, flow meter.In the present solution, working as operation card
When enclosing using c-shaped opening structure made of plastics, and pulling ear being set, can easily, easily it be extracted from exterior bayonet slot.
Preferably, the one-way valve structures include the single-way switch being slidably located in valve deck, and valve deck is in single-way switch
Both ends be respectively formed the inlet and outlet of fluid channel, single-way switch can form import and block, be formed with and flow on valve deck
The toroidal cavity that the import in body channel is connected is formed with the blind hole with outlet on single-way switch, and the blind hole is by unidirectionally opening
The multiple windows being equipped with are closed to be connected to toroidal cavity.Entered in fluid by import, pushes single-way switch to move to right using pressure difference, fluid
The gap for flowing through import and single-way switch enters in toroidal cavity, and is entered in blind hole by the window on single-way switch, then
It is flowed out from outlet.Fashionable from outlet stream in fluid, due to differential pressure action, single-way switch is moved to left, and single-way switch head is to import shape
At closure, to prevent from the fluid channel inlet recharge of valve deck to inlet ductwork.When this valve is used for for combustion gas, with water
In the equipment or facility of road access, such as because of the pipeline wrong in equipment, and when the pressure of pressure water is greater than air pressure, water can be from this
The outlet of valve enters the fluid access port of valve deck, then under differential pressure action, single-way switch is pushed to move to left to be formed to valve deck
The closure of section fluid channel inlet, can effectively avoid fluid and enters gas pipeline.Its structure is simple, easy to process, manufacturing cost
It is low, and check function is reliable.
It is further preferred that the single-way switch is made of switch body and deflating cap, deflating cap is in hemisphere shell structure, and is led to
Cross the ring-shaped groove and switch body snapping in switch body；The blind hole and window are both formed in the switch body.Further really
Structure-preserving is simple, easy to process, and manufacturing cost is low；Usual deflating cap uses the elastomeric material such as rubber to make, and switch body is adopted
It makes of the relatively small nonmetallic materials of specific gravity or coloured light metal material, is swift in motion with further non-return.
Preferably, the locking screw is screwed on the limiting block tongue, and the head of locking screw is hidden in limiting block tongue
In the counterbore being equipped with.It when using this structure, is usually coaxially set by the threaded hole that counterbore and locking screw screw togather, is convenient for screw thread
Bottom outlet and counterbore disposably drill and ream or bore ream and complete the process, and to improve processing efficiency, reduce manufacturing cost.
Preferably, the spanner is in T shape, and spanner is sleeved on the outer of the valve rod by the vertical portion at T-shaped middle part
End, and torque transfer arrangement is formed by two parallel flat horizontal surfaces, and the outer end of valve rod is hidden in valve body.So that wrench-shaped
At T-shaped knob structure, torque transmitting is reliable and compact-sized, simple, and easy to process, manufacturing cost is low.
Preferably, the spanner is fixedly connected with the valve rod by screw, which has phase with the locking screw
Same screwing structure, and the head of screw is hidden in the counterbore that the spanner is equipped with, and is passed through gland and covered.It can effectively prevent
Spanner is dismantled without authorization, eliminates the hidden danger unlocked by dismantling spanner, and can further cramped construction.
Compared with the prior art, the invention has the advantages that can effectively carry out locking and prevent from stealing to tear open, and installation dimension
It is fixed, and can prevent fluid from flowing backward.Wherein, locking screw can only be turned by specialized opener, effectively prevent misoperation of valve
It opens or is opened without authorization, it is ensured that user is using safe, and opener structure size is small, easy to carry, locking and unlock behaviour
Work is convenient, dynamics is small, long service life, and locking screw is without hidden danger is lost, for that can effectively eliminate gas circuit in domestic gas pipeline
With water route misconnection and cause tap water to flow backward hidden danger into fuel gas pipeline, avoid gas facility, instrument from being damaged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1.
Fig. 2 is the structural representation of the screw opener for being locked or unlocked to the utility model embodiment 1 and 2
Axonometric drawing.
Fig. 3 is A-A cross-sectional view in the utility model Fig. 1.
Fig. 4 is the structural schematic diagram of the utility model embodiment 2.
Fig. 5 is the structural schematic diagram of the utility model embodiment 3.
Fig. 6 is the structural representation of the screw opener for being locked or unlocked to the utility model embodiment 3 and 4
Axonometric drawing.
Fig. 7 is the structural schematic diagram of the utility model embodiment 4.
Specific embodiment
The present invention will be further described below with reference to the drawings, but does not therefore limit the present invention to the implementation
Among example range.
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 deck 2, valve deck 2
External interface constitute the structure of Anti-theft-dismounting connector, and be formed with one-way valve structures on the fluid channel of valve deck 2；Valve body 1 and valve
Spool 3 is connected with by seal holder ring 9 between lid 2, spool 3 is connected with spanner 5 by valve rod 4；The side of valve body 1, which is formed with, to be filled out
Feed bin, valve rod 4 are located in filling container, and airtight and watertight padding 10 is equipped between 4 periphery of valve rod and filling container inner wall, and airtight and watertight padding 10 passes through
Stuffing nut 11 compresses, with the sealed connection formed between valve rod 4 and valve body 1；Spanner 5 is in T shape, and spanner 5 passes through in T-shaped
The vertical portion in portion is sleeved on the outer end of valve rod 4, and forms torque transfer arrangement, and valve rod 4 by two parallel flat horizontal surfaces
Outer end be hidden in the extended segment of 1 filling container of valve body, spanner 5 and the valve rod 4 are fixedly connected by screw 7, the screw 7
Head is hidden in the counterbore that spanner 5 is equipped with, and the head of screw 7 is covered by gland 8；On the side horizontal segment of spanner 5 downwards
Limiting block tongue 51 is extended to form, the extended segment periphery of 1 filling container of valve body is formed with retention bead 1a circumferentially distributed at two, limit
The limitation of 5 rotational angle range of spanner is collectively formed in retention bead 1a at the gear tongue 51 and two of position.
Wherein, Anti-theft-dismounting connector includes movable joint structure and Anti-theft-dismounting capping 14, and movable joint structure includes coaxial can be rotated
The collar nut 21 being sleeved on 2 front tube section of valve deck, collar nut 21 by axis with retainer ring 22 prevent deviate from, 2 front end of valve deck
It is additionally provided with gasket 23；The Anti-theft-dismounting covers the movable set of 14 rounded housing shapes on 2 front tube section of valve deck, Anti-theft-dismounting
Capping 14 prevents it from deviating from by collar nut 21, and Anti-theft-dismounting capping 14 is equipped with elastic collar 15 by inner card cage；Collar nut 21
Preceding end disc technique retainer ring 16 is equipped with by exterior bayonet slot, it is mobile with Anti-theft-dismounting capping 14 in elastic collar 15, and enter and risen
When the exterior bayonet slot conceded, Anti-theft-dismounting capping 14 covers on 21 periphery of collar nut, and is limited to only can be rotated by elastic collar 15.
One-way valve structures include the single-way switch being slidably located in valve deck 2, and valve deck 2 is distinguished at the both ends of single-way switch
The inlet and outlet of fluid channel is formed, single-way switch can form import and block, and single-way switch through hole is prevented with retaining ring 13
It deviates from from valve deck 2, and the toroidal cavity 2a that the import with fluid channel is connected is formed on valve deck 2, is formed on single-way switch
There are the blind hole 30a with outlet, blind hole 30a to be connected to by multiple window 30b that single-way switch is equipped with toroidal cavity 2a；
Single-way switch is made of switch body 30 and deflating cap 31, and deflating cap 31 is in hemisphere shell structure, and passes through the annular in switch body 30
Groove and 30 snapping of switch body, and 30 outer diameter of switch body is greater than or equal to 31 outer diameter of deflating cap；The blind hole 30a and window 30b
It is both formed in the switch body 30.
Locking screw 6 is screwed on limiting block tongue 51, the thread segment front end of the locking screw 6 is formed with the light with cone
Rod segment 61, the diameter of light bar segment 61 are not more than the thread segment path of locking screw 6；The head of locking screw 6 is formed with triangular prism
The screwing structure of shape, only to be turned by screw opener 12 with matching, which is in box spanner
The matching hole of structure, the screwing structure of 12 front end of screw opener is in prismatic, and the head of locking screw 6 is hidden in limiting block
In the counterbore that tongue 51 is equipped with, and the counter bore hole diameters be greater than screw opener 12 can dip section outer diameter；Outside the filling container of valve body 1
The undertaking taper hole for receiving 6 cone of locking screw is formed on wall.To pass through screw opener under ball valve closed state
12 turn locking screw 6, are against 6 cone of locking screw on receiving hole, lock to be formed to spanner 5；Alternatively, passing through screw
Opener 12 turns locking screw 6, and 6 cone of locking screw is made to exit undertaking taper hole, unlocks spanner 5.
Embodiment 2, referring to fig. 4, the locking screw 6 are screwed on 1 filling container outer wall of valve body, and limiting block tongue 51 is located at lock
Only on the outside of 6 head of screw, with when locking screw 6 is tightened, spanner 5 be can be rotated, laterally there is perforation 52 on limiting block tongue 51, this is worn
52 diameter of hole be greater than screw opener 12 can the outer diameter of dip section made with turning locking screw 6 by screw opener 12
52 a part of perforation is protruded on 6 head of locking screw, locks to be formed to spanner 5；Alternatively, being turned by screw opener 12
Locking screw 6 makes 6 head of locking screw abjection perforation 52, and is located at 51 inside of limiting block tongue, to release the locking of spanner 5
State.
Remaining structure of the present embodiment is same as Example 1, and details are not described herein.
Embodiment 3, referring to Fig. 5, Fig. 6, the head 61 of the locking screw 6 is formed with the poroid screwing structure of trigone, with
It is only turned by screw opener 12a with matching, which has stubborn with 6 front end of locking screw
The head of the triangular prism shape of locking structure cooperation.
Remaining structure of the present embodiment is same as Example 1, and details are not described herein.
Embodiment 4, referring to Fig. 7, the head 61 of the locking screw 6 is formed with the poroid screwing structure of trigone, with only by
Screw opener 12a with matching turns, which, which has, tightens knot with 6 front end of locking screw
The head of the triangular prism shape of structure cooperation.
Remaining structure of the present embodiment is same as Example 2, and details are not described herein.
Circle is also formed between the head trigone shell of column and thread segment of locking screw 6 in previous embodiment 1 and embodiment 2
Shell of column, the cylindrical section and thread segment are coaxial, and cylindrical section diameter is greater than trigone shell of column corresponding contour size, using cylindrical section as work
Skill benchmark or clamping position use.
Above although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can also anticipate
Know to various changes can be made in scope of the appended claims or modification, such as does the wedge-shaped working face of the push rod in the present invention
The mode being gradually increased at ecto-entad, by pulling push rod to realize, clutch disengaging surmounts the purpose of state, corresponding push rod
Extension spring etc. can be set in inner face bottom.These modifications and variations are understood as within the scope of the present invention and intention
's.
Claims (6)
1. a kind of Anti-theft-dismounting lock control ball check valve, including valve body（1）, valve deck（2）And spool（3）, spool（3）Pass through valve rod（4）
It is connected with spanner（5）, valve rod（4）Positioned at valve body（1）In the filling container that side is equipped with, spanner（5）It is upper to form restricted spanner（5）
The limiting block tongue of rotational angle range（51）；The valve deck（2）External interface constitute the structure of Anti-theft-dismounting connector, and valve deck
（2）Fluid channel on be formed with one-way valve structures；The limiting block tongue（51）With valve body（1）Filling container outer wall between be equipped with
Head is formed with the locking screw of prismatoidal screwing structure（6）, locking screw（6）For being pulled by filling container outer wall to described
Hand（5）Locking, and in locking screw（6）Only with filling container outer wall or limiting block tongue（51）When disengaging, spanner（5）It is unlocked；Its
It is characterized in that, the locking screw（6）Thread segment front end be formed with the light bar segment with cone（61）, light bar segment（61）It is straight
Diameter is not more than locking screw（6）Thread segment path；The valve body（1）Filling container outer wall on be formed with and receive the locking spiral shell
Nail（6）The undertaking taper hole of cone；The spanner（5）It is in T shape, spanner（5）Institute is sleeved on by the vertical portion at T-shaped middle part
State valve rod（4）Outer end, and form torque transfer arrangements, and valve rod by two parallel flat horizontal surfaces（4）Outer end be hidden in
Valve body（1）It is interior.
2. Anti-theft-dismounting lock control ball check valve according to claim 1, which is characterized in that the Anti-theft-dismounting connector includes loose joint
Header structure and Anti-theft-dismounting capping（14）, movable joint structure includes coaxially rotatably being sleeved on valve deck（2）Connecing on front tube section
Head nut（21）, collar nut（21）By axis retainer ring（22）Prevent abjection；The Anti-theft-dismounting capping（14）Rounded housing shape
Movable set in valve deck（2）On front tube section, Anti-theft-dismounting capping（14）By collar nut（21）Prevent its abjection, antitheft opening
Lid（14）Elastic collar is equipped with by inner card cage（15）；Collar nut（21）Preceding end disc by exterior bayonet slot be equipped with technique retainer ring
（16）；In elastic collar（15）It is covered with Anti-theft-dismounting（14）When moving, and entering the exterior bayonet slot vacated out, Anti-theft-dismounting capping
（14）Cover on collar nut（21）Periphery, and by elastic collar（15）It is limited to only can be rotated.
3. Anti-theft-dismounting lock control ball check valve according to claim 1, which is characterized in that the one-way valve structures include that can slide
Dynamic is located at valve deck（2）Interior single-way switch, valve deck（2）The import of fluid channel is respectively formed at the both ends of single-way switch and is gone out
Mouthful, single-way switch can form import and block, valve deck（2）On be formed with the toroidal cavity that import with fluid channel is connected
（2a）, the blind hole with outlet is formed on single-way switch（30a）, the blind hole（30a）It is equipped with by single-way switch multiple
Window（30b）With toroidal cavity（2a）Connection.
4. Anti-theft-dismounting lock control ball check valve according to claim 3, which is characterized in that the single-way switch is by switch body
（30）And deflating cap（31）Composition, deflating cap（31）In hemisphere shell structure, and pass through switch body（30）On ring-shaped groove with open
Guan Ti（30）Snapping；The blind hole（30a）And window（30b）It is both formed in the switch body（30）On.
5. Anti-theft-dismounting lock control ball check valve according to claim 1, which is characterized in that the locking screw（6）It is screwed on
The limiting block tongue（51）On, locking screw（6）Head be hidden in limiting block tongue（51）In the counterbore being equipped with.
6. Anti-theft-dismounting lock control ball check valve described according to claim 1~any one of 5, which is characterized in that the spanner
（5）With the valve rod（4）Pass through screw（7）It is fixedly connected, the screw（7）With the locking screw（6）It is having the same to tighten
Structure, and screw（7）Head be hidden in the spanner（5）In the counterbore being equipped with, and pass through gland（8）Masking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349162.5A CN105805340B (en) | 2016-05-24 | 2016-05-24 | A kind of Anti-theft-dismounting lock control ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349162.5A CN105805340B (en) | 2016-05-24 | 2016-05-24 | A kind of Anti-theft-dismounting lock control ball check valve |
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| Publication Number | Publication Date |
|---|---|
| CN105805340A CN105805340A (en) | 2016-07-27 |
| CN105805340B true CN105805340B (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610349162.5A Active CN105805340B (en) | 2016-05-24 | 2016-05-24 | A kind of Anti-theft-dismounting lock control ball check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN105805340A (en) | 2016-07-27 |
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