CN205781130U - Lockable Anti-theft-dismounting ball check valve - Google Patents

Abstract

The utility model discloses a kind of lockable Anti-theft-dismounting ball check valve, including valve body, valve gap and spool, spool is connected by valve rod spanner, and spanner is formed the limiting block tongue limiting spanner rotational angle range；The external interface of 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；The lock bolt that head is the quincuncial screwing structure of pintongs it is provided with between the filling container outer wall of limiting block tongue and valve body, 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.The beneficial effects of the utility model are, can effectively carry out locking and prevent robber from tearing open, and installation dimension is fixed；And can prevent misoperation of valve from opening or being opened without authorization, lock bolt, without losing hidden danger, in domestic gas pipeline, can effectively eliminate 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.

Description

Lockable Anti-theft-dismounting ball check valve

Technical field

This utility model relates to a kind of Anti-theft-dismounting ball valve, particularly to a kind of lockable Anti-theft-dismounting 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, service life is long.Therefore, it is widely used in above-mentioned field.Ordinary construction ball valve Can directly be manipulated by user on demand, there is for end user management and control degree of freedom and motility, but to supply, supply water Just lose control, the forfeiture of this control for management unit, be not fully complete in front end engineering construction or do not possess supply During 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 the most valvular prevent opening means without authorization and mainly include that it is special purpose interface form that valve rod is pulled Interface design, valve Do not configure spanner or handwheel on door, can only be opened by special messenger's special spanner or special handwheel.This specific purpose tool necessarily uses The convenient snap-in structure connected and take out, it connects, and precision is low, fastness is poor, easily occurs skidding after using a period of time, shadow Ring and open and close effect；And physical dimension is big, carry inconvenience.Although occurring in that some have locking machine in the market Structure, and the ball valve of locking and unblock is carried out by private key, but these ball valves are not to there is structure complexity, it is simply that there is 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, and this ball valve is provided with one between handle and valve body and has locking Screw, and unlocked by private key and the locking device of locking, its Key structure size is little, easy to carry, locking and unblock Rapid operation.But this valve could unlock after needing to pull down lock bolt, there is complex operation and deficiency that screw is easily lost. To this end, need to improve further.Ball check valve is a kind of ball valve that can prevent fluid from pouring in down a chimney, joint ball valve be in one end of ball valve or Two end interfaces are furnished with joint, thus form fixing installation length size, to facilitate installation and to connect, improve pipeline laying effect Rate；When joint is arranged to Anti-theft-dismounting structure, it constitutes Anti-theft-dismounting ball valve.In prior art, lack lockable and have anti- Steal the ball check valve disconnecting head, for meeting the market demand, be badly in need of developing this series products.

Summary of the invention

The purpose of this utility model is aiming at the deficiencies in the prior art, it is provided that a kind of lockable Anti-theft-dismounting check ball Valve, this ball valve forms Anti-theft-dismounting joint by valve gap, and forms one-way valve structures on the fluid passage of valve gap, can effectively prevent Fluid pours in down a chimney, it is to avoid the press water that connecting has the equipment in fuel gas pipeline and water route to be likely to occur because of misconnection pours in down a chimney to fuel gas pipeline In, cause air supply system water inlet to cause gas facility to damage；Ball valve utilizes lock bolt to pass through the filling container outer wall pair of valve body Spanner locks, and when lock bolt only departs from filling container outer wall or limiting block tongue, can unlock spanner；Its lock bolt is only Can be turned by specialized opener, effectively prevent misoperation of valve from opening or being opened without authorization, it is ensured that user uses safety, and opens Opening tool construction size little, easy to carry, locking reconciliation latching operation is convenient, dynamics is little, and service life is long.

For achieving the above object, this utility model adopts the following technical scheme that.

A kind of lockable Anti-theft-dismounting ball check valve, including valve body, valve gap and spool, spool is connected by valve rod to be pulled Hands, valve rod is positioned at the filling container that valve body side is provided with, and spanner is formed the limiting block tongue limiting 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；Institute State and be provided with head between the filling container outer wall of limiting block tongue and valve body and be formed with the lock bolt of the quincuncial screwing structure of pintongs, Lock bolt for described spanner being locked by filling container outer wall, and lock bolt only with filling container outer wall or limiting block tongue During disengaging, spanner is unlocked.

Using this utility model 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, and its size is locked into the structure that mounting distance is fixing, external relative to increasing The mode of joint, is effectively reduced leakage point, reduces the potential safety hazard existed because of leakage, and the fluid passage of valve gap forms list To valve arrangement, not only can effectively prevent fluid from pouring in down a chimney, it is to avoid to connect and have the equipment in fuel gas pipeline and water route may go out because of misconnection Existing press water pours in down a chimney in fuel gas pipeline, causes air supply system water inlet to cause gas facility to damage, is also fully utilized by making For the useful space of the valve gap of adapter body, make compact conformation, be particularly well-suited to the control valve of domestic gas meter, make hidden danger disappear Except the end at burning line.This ball valve arranges lock bolt also by between the filling container outer wall of spanner and valve body, is used for Spanner is formed lockup state with valve body.Locking is that the filling container outer wall of the limiting block tongue by spanner and valve body realizes, its Need not too great dynamics and can form locking, locking reliability is high, and lock operation dynamics is little, only need to turn screw and make it during unblock Releasing annexation with one of them, be not required to pull down screw, it is simple to operate, unblock is rapid, eliminates screw and loses hidden Suffer from.Meanwhile, available limiting block tongue concealment or cover lock bolt, so that further ensure that can not be with other general utility tools or spanner Turn, and there is acquisition compact structure.Owing to the screwing structure of lock bolt head is that pintongs is quincunx or pintongs plum blossom hole, Therefore, it can only be by matched triangular shaped sleeve opener, or the opener with triangle head turns reality Latching operation is conciliate in now locking, and other any general utility tools or spanner all can not unlock or lock；And lock bolt head uses three Dihedral screwing structure, it is ensured that the seamed edge of lock bolt head is in use difficult to rounded, damage, guarantees it from structure There is long service life.

Preferably, described Anti-theft-dismounting joint includes movable joint structure and Anti-theft-dismounting capping, and movable joint structure includes coaxially may be used The collar nut being sleeved on valve gap front tube section rotated, collar nut is stoped abjection by axle collar；Described antitheft opening Covering the movable set of rounded case shape on valve gap front tube section, Anti-theft-dismounting capping is stoped it to deviate from by collar nut, antitheft Seal off lid and be provided with elastic collar by inner card cage；The front end disk of collar nut is provided with technique collar by exterior bayonet slot, in elasticity Collar is mobile with Anti-theft-dismounting capping, and when entering the exterior bayonet slot vacated out, Anti-theft-dismounting cap cover in collar nut periphery, and by Elastic collar is limited to the most rotatable.Joint forms integrative-structure, its compact conformation, good rigidly with valve gap, and connectivity robustness is good, And simple in construction, easy to connect.Meanwhile, joint forms Anti-theft-dismounting structure, this structure by movable joint structure and Anti-theft-dismounting capping Valve in a pre-installation time, technique collar coordinates 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 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 and twist Dynamic collar nut realizes being connected with the air inlet pipe of gas meter, flow meter or the interface of other pipelines, after being connected firmly by the taking-up of technique collar or Pull-out, vacates out exterior bayonet slot, promotes Anti-theft-dismounting capping further along, makes elastic collar be stuck in exterior bayonet slot, and now, Anti-theft-dismounting covers The covering forming butt joint nut is hidden, and is stoped it to move forward and backward by elastic collar, also cannot pull joint by spanner again Nut, thus realize 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 antitheft of valve Tear function open, prevent pilferage air entrainment behavior gas meter, flow meter destroyed by dismounting valve and joint.In this programme, work as operation card C-shaped opening structure made of plastic adopted by circle, 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, and valve gap is at single-way switch Two ends form the inlet and outlet of fluid passage respectively, single-way switch can form closure to import, valve gap is formed and flows The toroidal cavity that the import of body passage is connected, single-way switch is formed the blind hole with outlet, and this blind hole is opened by unidirectional Close the multiple windows being provided with to connect with toroidal cavity.Entered by import at fluid, utilize pressure reduction to promote single-way switch to move to right, fluid The gap flowing through import and single-way switch enters in toroidal cavity, and enters in blind hole by the window on single-way switch, then Flow out from outlet.When fluid flows into from outlet, due to differential pressure action, single-way switch moves to left, and single-way switch head is to import shape Become closure, thus stop the fluid channel inlet from valve gap to recharge inlet ductwork.This valve is for, during for combustion gas, having water In equipment that road is accessed or facility, as because of the pipeline wrong on equipment, and when the pressure of press water is more than air pressure, water can be from this The outlet of valve enters the fluid access port of valve gap, then under differential pressure action, promotes single-way switch to move to left formation to valve gap The closure of section fluid channel inlet, can be prevented effectively from fluid and enter gas pipeline.Its simple in construction, easy to process, manufacturing cost Low, 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 leads to Cross the ring-shaped groove in switch body and switch body snapping；Described blind hole and window are both formed in described switch body.The most really Structure-preserving is simple, easy to process, low cost of manufacture；Generally deflating cap uses the elastomeric material such as rubber to make, and switch body is adopted The nonmetallic materials relatively small with proportion or coloured light metal material 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 limiting block tongue In the counterbore being provided with.When using this structure, the screwed hole generally screwed togather by counterbore and lock bolt is coaxially set, it is simple to screw thread Bottom outlet and counterbore disposably drill and ream or bore ream and machine, and to improve working (machining) efficiency, reduce manufacturing cost.

Preferably, described spanner is in T shape, and spanner is sleeved on outside described valve rod by the vertical portion at T-shaped middle part End, and form torque transfer arrangement by two parallel flat horizontal surfaces, and the outer end of valve rod is hidden in valve body.So that wrench-shaped Becoming 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 has phase with described lock bolt With screwing structure, and the head of screw is hidden in the counterbore that described spanner is provided with, and covered by gland.Can effectively prevent Spanner is dismantled without authorization, eliminates the hidden danger that unlocked by dismantling spanner, and can cramped construction further.

This utility model compared with prior art provides the benefit that, can effectively carry out locking and prevent robber from tearing open, and installs Size is fixed, and can prevent fluid from pouring in down a chimney.Wherein, lock bolt only can be turned by specialized opener, effectively prevents valve by mistake Operation is opened or is opened without authorization, it is ensured that user uses safety, and opener physical dimension is little, easy to carry, and locking is conciliate Latching operation is convenient, dynamics is little, and service life is long, and lock bolt is without losing hidden danger.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment 1.

Fig. 2 is for the structural representation to the screw opener that this utility model embodiment 1 and 2 locks or unlocks Axonometric drawing.

Fig. 3 is the A A sectional view in this utility model Fig. 1.

Fig. 4 is the structural representation of this utility model embodiment 2.

Fig. 5 is the structural representation of this utility model embodiment 3.

Fig. 6 is for the structural representation to the screw opener that this utility model embodiment 3 and 4 locks or unlocks Axonometric drawing.

Fig. 7 is the structural representation of this utility model embodiment 4.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is further described, but the most therefore this utility model is limited in institute Among the scope of embodiments stated.

Embodiment 1, sees Fig. 1, Fig. 2, Fig. 3, a kind of lockable Anti-theft-dismounting 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；Valve body 1 And having spool 3 by seal holder ring 9 connection between valve gap 2, spool 3 is connected by valve rod 4 spanner 5；The side of valve body 1 is formed There are filling container, valve rod 4 to be positioned at filling container, between valve rod 4 periphery and filling container inwall, are provided with airtight and watertight padding 10, airtight and watertight padding 10 Compressed by stuffing nut 11, to form being tightly connected between valve rod 4 and valve body 1；Spanner 5 is in T shape, and spanner 5 is by T word Vertical portion in the middle part of shape is sleeved on the outer end of valve rod 4, and forms torque transfer arrangement, and valve by two parallel flat horizontal surfaces The outer end of bar 4 is hidden in the extension of valve body 1 filling container, and spanner 5 and described valve rod 4 connect by screw 7 is fixing, this screw The head of 7 is hidden in the counterbore that spanner 5 is provided with, and the head of screw 7 is covered by gland 8；On the side horizontal segment of spanner 5 to Lower extension is formed with limiting block tongue 51, and the periphery, extension of valve body 1 filling container is formed with spacing preiection 1a circumferentially distributed at two, At limiting block tongue 51 and two, spacing preiection 1a is 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 coaxial rotatable The collar nut 21 being sleeved on valve gap 2 front tube section, collar nut 21 is stoped abjection, valve gap 2 front end by axle collar 22 It 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, 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；Collar nut 21 Front end disk be provided with technique collar 16 by exterior bayonet slot, 14 move with Anti-theft-dismounting capping at elastic collar 15, and enter and rise During the exterior bayonet slot conceded, Anti-theft-dismounting capping 14 covers on collar nut 21 periphery, and is limited to the most rotatable by elastic collar 15.

One-way valve structures includes the single-way switch being slidably located in valve gap 2, and valve gap 2 is at the two ends of single-way switch respectively Forming the inlet and outlet of fluid passage, single-way switch can form closure to import, and single-way switch is stoped by hole back-up ring 13 It is deviate from from valve gap 2, and valve gap 2 is formed the toroidal cavity 2a that the import with fluid passage is connected, and single-way switch is formed Having blind hole 30a with outlet, 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 annular in switch body 30 Groove 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 It 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 with cone Bar segment 61, 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 pintongs prunus mume (sieb.) sieb.et zucc. Styliform screwing structure, only to be turned by screw opener 12 with matching, this screw opener 12 is in sleeve Spanner structure, the mating holes of the screwing structure of screw opener 12 front end is that pintongs is quincunx, and 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；Valve body 1 The undertaking taper hole receiving described lock bolt 6 cone it is formed with on filling container outer wall., under ball valve closed mode, to pass through screw Opener 12 turns lock bolt 6, makes lock bolt 6 cone be against on receiving hole, thus is formed and lock spanner 5；Or, Turn lock bolt 6 by screw opener 12, make lock bolt 6 cone exit undertaking taper hole, make spanner 5 unlock.

Embodiment 2, sees Fig. 4, and described lock bolt 6 is screwed on valve body 1 filling container outer wall, and limiting block tongue 51 is positioned at lock Only outside screw 6 head, with when lock bolt 6 is tightened, spanner 5 is rotatable, and limiting block tongue 51 laterally has perforation 52, and this is worn Hole 52 diameter more than screw opener 12 can the external diameter of dip section, to turn lock bolt 6 by screw opener 12, make Lock bolt 6 head stretches into perforation 52 part, thus is formed and lock spanner 5；Or, turned by screw opener 12 Lock bolt 6, makes lock bolt 6 head deviate from perforation 52, and is positioned at inside limiting block tongue 51, thus release the locking of spanner 5 State.

Remaining structure of the present embodiment is same as in Example 1, does not repeats them here.

Embodiment 3, sees Fig. 5, Fig. 6, the head 61 of described lock bolt 6 be formed pintongs Flos Mume poroid tighten knot Structure, only to be turned by screw opener 12a with matching, this screw opener 12a has and lock bolt 6 front end The head of pintongs Flos Mume column that coordinates of screwing structure.

Remaining structure of the present embodiment is same as in Example 1, does not repeats them here.

Embodiment 4, sees Fig. 7, and the head 61 of described lock bolt 6 is formed with the screwing structure that pintongs Flos Mume is poroid, with Only turned by screw opener 12a with matching, this screw opener 12a have with lock bolt 6 front end twist The head of the pintongs Flos Mume column that locking structure coordinates.

Remaining structure of the present embodiment is same as in Example 2, does not repeats them here.

Also formed between head pintongs Flos Mume shell of column and the thread segment of the lock bolt 6 in previous embodiment 1 and embodiment 2 With cylindrical section, this cylindrical section is coaxial with thread segment, and cylindrical section diameter is more than pintongs Flos Mume shell of column correspondence overall size, with by cylinder Duan Zuowei technological datum or clamping position use.

Although being described in conjunction with the accompanying embodiment of the present utility model above, but those of ordinary skill in the art also may be used To recognize in scope of the following claims, various changes can be made or amendment, such as the wedge shape by the push rod in this utility model Work surface makes the mode that ecto-entad is gradually increased, and surmounts the purpose of state, phase by pulling push rod to realize clutch disengaging Answer and stretching spring etc. can be set bottom the inner face of push rod.These modifications and variations are understood as at model of the present utility model Within enclosing and being intended to.

Claims (5)

1. a lockable Anti-theft-dismounting ball check valve, including valve body (1), valve gap (2) and spool (3), spool (3) passes through valve rod (4) connection has spanner (5), valve rod (4) to be positioned at the filling container that valve body (1) side is provided with, and spanner is formed with restriction spanner on (5) (5) the limiting block tongue (51) of rotational angle range；It is characterized in that, the external interface of described valve gap (2) constitutes Anti-theft-dismounting joint Structure, and be formed with one-way valve structures on the fluid passage of valve gap (2)；Wherein, Anti-theft-dismounting joint include movable joint structure and Anti-theft-dismounting capping (14), movable joint structure includes the most rotating collar nut being sleeved on valve gap (2) front tube section (21), collar nut (21) is stoped abjection by axle collar (22)；The activity of described Anti-theft-dismounting capping (14) rounded case shape Being sleeved on valve gap (2) front tube section, Anti-theft-dismounting capping (14) is stoped it to deviate from by collar nut (21), Anti-theft-dismounting capping (14) It 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； Mobile with Anti-theft-dismounting capping (14) at elastic collar (15), and when entering the exterior bayonet slot vacated out, Anti-theft-dismounting capping (14) cover In collar nut (21) periphery, and it is limited to the most rotatable by elastic collar (15)；Described limiting block tongue (51) and valve body (1) Being provided with head between filling container outer wall and be formed with the lock bolt (6) of the quincuncial screwing structure of pintongs, lock bolt (6) screws togather On valve body (1) filling container outer wall, limiting block tongue (51) is positioned at outside lock bolt (6) head；Limiting block tongue (51) is upper laterally Have perforation (52), this perforation (52) diameter more than screw opener (12) can the external diameter of dip section, to open work by screw Tool (12) turns lock bolt (6), makes lock bolt (6) head stretch into perforation (52) part；Lock bolt (6) is used for passing through Described spanner (5) is locked by filling container outer wall, and when lock bolt (6) only departs from filling container outer wall, spanner (5) is solved Lock.

Lockable Anti-theft-dismounting ball check valve the most according to claim 1, it is characterised in that described one-way valve structures includes Slidably being located at the single-way switch in valve gap (2), valve gap (2) forms the import of fluid passage respectively at the two ends of single-way switch And outlet, single-way switch can form closure to import, valve gap (2) is formed the toroidal cavity that the import with fluid passage is connected (2a), single-way switch is formed with the blind hole (30a) with outlet, this blind hole (30a) by single-way switch be provided with multiple Window (30b) connects with toroidal cavity (2a).

Lockable Anti-theft-dismounting ball check valve the most according to claim 2, it is characterised in that described single-way switch is by switching Body (30) and deflating cap (31) composition, deflating cap (31) in hemispherical Shell structure, and by the ring-shaped groove in switch body (30) with Switch body (30) snapping；Described blind hole (30a) and window (30b) are both formed in described switch body (30).

4. according to the lockable Anti-theft-dismounting ball check valve described in any one in claims 1 to 3, it is characterised in that described Spanner (5) is in T shape, and spanner (5) is sleeved on the outer end of described valve rod (4) by the vertical portion at T-shaped middle part, and by two Individual parallel flat horizontal surface forms torque transfer arrangement, and the outer end of valve rod (4) is hidden in valve body (1).

5. according to the lockable Anti-theft-dismounting ball check valve described in any one in claims 1 to 3, it is characterised in that described Spanner (5) and described valve rod (4) connect by screw (7) is fixing, and 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).