CN205639684U

CN205639684U - Locking ball valve

Info

Publication number: CN205639684U
Application number: CN201620484336.4U
Authority: CN
Inventors: 陈金明
Original assignee: Zhejiang Crown Industry Co Ltd
Current assignee: Zhejiang Crown Industry Co Ltd
Priority date: 2016-05-24
Filing date: 2016-05-24
Publication date: 2016-10-12
Anticipated expiration: 2026-05-24

Abstract

The utility model provides a locking ball valve belongs to mechanical technical field. It has solved the use scheduling problem that current locking ball valve is unfavorable for the ball valve. This locking ball valve includes the valve rod, valve body and case, water inlet and delivery port have on the valve body, the case has water channel, the lower extreme and the case of valve rod are connected, the valve body was passed to the upper end of valve rod upper end and circumference fixedly connected with open the key, delivery port fixedly connected with is the water connectors of tube -shape, water connectors's play water end (W. E. ) is pegged graft and is had the takeover, the cover is equipped with the jump ring in the takeover, the stopping ring, sealing washer and locking cap, the lateral surface that the end was intake in the takeover is provided with the draw -in groove, the joint has the jump ring in the draw -in groove, locking cap threaded connection is at water connectors's play water end (W. E. ), water connectors forms sealedly with the takeover when stopping ring sum sealing washer is fixed at water connectors in proper order and is locked between the cap, the jump ring can support and lean on on the stopping ring when the takeover is removed in water connectors. This locking ball valve has advantages such as convenient to use.

Description

A kind of locking ball valve

Technical field

This utility model belongs to field of mechanical technique, relates to a kind of ball valve, particularly relates to one Plant locking ball valve.

Background technology

Ball valve is the most common valve, in standard GB/T21465-2008 " valve term " Ball valve is defined as: opening and closing element (spheroid) is driven by valve rod, and revolves around the axis of valve rod The valve that transhipment is dynamic.The circulation of pipeline internal medium can be realized by the rotation of spheroid or cut Only；During medium circulation, ball valve is in opening；During the maximum flow that medium circulates, ball Valve is in fully opened；During medium cut-off circulation, ball valve is in cut-off state.Commonly Often being fixedly connected with handle on the valve rod of ball valve, anyone can be come by turning handle Change the use state of valve body, in order to prevent other people from optionally changing the use state of valve, Need a kind of can be with the ball valve of locking valve rod.

Chinese patent literature data is open propose one can ball valve with lock [application number: CN201120420135.5；Authorization Notice No.: CN202432096U], it includes valve body, The two ends of valve body have joint, and the two ends of ball are arranged in valve body by sealing ring, and valve rod is worn Crossing the valve-rod cavity on valve body and also and form revolute pair between valve body, valve rod lower end is connected with ball； The upper end of valve rod is less than the periphery of the upper end of valve-rod cavity, and this ball valve also includes that one can be stretched into The key rotated for band ovable valve stem matched with the upper end of valve rod in valve-rod cavity.This is one Plant the ball valve that private key can only be used just can be turned on or off valve, can be effectively Prevent other people from optionally changing the use state of valve.

But this ball valve does not have Expansion loose joint function, send out during being connected to pipeline Existing joint pipeline generally requires when falling short of and changes longer pipeline, so can increase cost； Or reluctantly by ball valve access conduit, so can increase the leak source in pipeline, be unfavorable for ball valve Use.

Summary of the invention

The purpose of this utility model is the problems referred to above existed for prior art, it is proposed that A kind of locking ball valve, solves the technical problem that it is how to make locking ball valve easy to use.

The purpose of this utility model can be realized by following technical proposal:

A kind of locking ball valve, including the valve body in shaft-like valve rod, having inner chamber and set Put the spool in body cavity, described valve body has entering of being connected with body cavity The mouth of a river and outlet, described spool has the aquaporin excessively running through spool, described valve rod Lower end is connected with spool, and the upper end of described valve rod passes the upper end of valve body circumferentially fixed company Being connected to unlocking key, described outlet is fixedly connected with tubular water out adapter, and it is special Levying and be, the water side of described water out adapter is plugged with adapter, along entering in described adapter Water end (W.E.) is arranged with jump ring, retaining ring, sealing ring and locking successively to the direction of water side Cap, the lateral surface of described adapter water inlet end arranges the draw-in groove that oriented adapter annular is recessed, Being connected with described jump ring in described draw-in groove, described locking cap is threaded in water out adapter Water side, when described retaining ring and sealing ring be sequentially fixed at water out adapter and locking cap it Between time described water out adapter with adapter formed seal, when described adapter moves in water out adapter Time dynamic, described jump ring can be resisted against on retaining ring.

The circumferentially fixed upper end at valve rod of unlocking key, rotate unlocking key band ovable valve stem and Valve core rotation, it is possible to make the water inlet on valve body connect with outlet or cut off, thus Ball valve is made to be in unlatching or cut-off state.During mounting ball valve often because Duct length error causes ball valve not can connect to the situation of position, particularly outlet pipe or When water inlet pipe length is inadequate, so reluctantly ball valve is installed in pipeline the use at ball valve During leak source easily occurs, make ball valve use inconvenience.Setting can be in water out adapter After the adapter of movement, adjust adapter according to the length connecting pipeline and extend into water out adapter Length, thus adapt to the connection of whole tubing, reduce when connecting pipeline because pipe The ball valve that road error in length causes not can connect to position thus occurs leakage during using The situation of point, facilitates ball valve to make ball valve easy to use while installing.Lock at locking cap During, sealing ring is constantly deformed so that shape between water out adapter and adapter Becoming to seal, jump ring is resisted against on retaining ring and is possible to prevent flexible in adjustment adapter or makes During ball valve, will take over pull-out from water out adapter, fixed by locking cap and connect Pipe makes maintenance and installation process convenient and swift, makes ball valve easy to use.

In above-mentioned locking ball valve, the end face of described water out adapter water side is provided with Groove, described retaining ring is installed to interior and retaining ring the end face of groove and is resisted against the end of groove On face.

Retaining during locking cap is locked it is possible to prevent in retaining ring is installed to groove The predetermined position of ring skew, reduces indefinite use ball valve of retaining ring installation site and causes Impact, convenient adapter makes ball valve easy to use while installing.

In above-mentioned locking ball valve, between described locking cap and sealing ring, it is fixed with sealing Ring.

Sealing ring be fixed between locking cap and sealing ring thus by sealing ring and locking cap every Open, be possible to prevent the locking cap abrasion to sealing ring during rotational lock, increase In the service life of sealing ring, sealing ring in adapter is made to be replaced continually, convenient The use of ball valve.

In above-mentioned locking ball valve, the upper end of described valve body is provided with jack, described valve The upper end of bar is positioned at jack, and the lower end of described unlocking key is inserted in jack and is set with Spline fitted is formed in the upper end of valve rod and with the upper end of valve rod.

The lower end of unlocking key forms spline fitted with the upper end of valve rod, can make unlatching key Spoon and valve rod upper end quickly formed circumferentially fixed connection enable unlocking key band ovable valve stem and Valve core rotation, can make again unlocking key quickly extract and make ball valve locking thus prevent other people from changing Become the use state of ball valve, make the easy to use of ball valve.

In above-mentioned locking ball valve, the sidewall of described jack is provided with positioning step, The projection of protrusion it is provided with, under described unlocking key on the upper surface of described positioning step Be provided with the block of protrusion on end face, when unlocking key be sleeved on valve rod upper end and around When the axis of valve rod rotates, described block can be resisted against on projection.

The rotational angle of unlocking key can be limited by arranging projection and block, make ball valve Will not rotate excessively, user-friendly ball valve.

In above-mentioned locking ball valve, when described unlocking key extracts jack, described slotting The protected lid of top releasable connection of valve rod it is positioned on the port in hole.

Arrange after protection cap is possible to prevent unlocking key to be pulled out in environment on jack is different Thing affects the follow-up use of unlocking key in falling jack, make ball valve easy to use.

In above-mentioned locking ball valve, described unlocking key is provided with suppending hole.

By unlocking key suspension or appointment position can be fixed on by suppending hole, prevent Unlocking key loses the use affecting locking ball valve.

Compared with prior art, this utility model has the advantage that

By arrange adapter and be set in adapter jump ring, retaining ring, sealing ring and Locking cap makes locking ball valve have Expansion loose joint function, makes ball valve easy to use.By inciting somebody to action Arrange in retaining ring is installed to the groove of water out adapter and between sealing ring and locking cap Sealing ring, defines the position of retaining ring and decreases the abrasion of sealing ring, thus entering One step makes ball valve easy to use.By the upper end of the lower end of unlocking key with valve rod is arranged For spline fitted and arrange projection and block, make ball valve easy to use.

Accompanying drawing explanation

Fig. 1 is the sectional view of this locking ball valve；

Fig. 2 is the enlarged drawing in Fig. 1 at A.

In figure, 1, valve body；1a, water inlet；1b, outlet；1c, jack；1d、 Positioning step；1e, projection；2, spool；2a, excessively aquaporin；3, valve rod；4, open Tunkey spoon；4a, suppending hole；4b, block；5, water out adapter；5a, groove；6、 Adapter；6a, draw-in groove；6b, jump ring；6c, retaining ring；6d, sealing ring；6e seals Ring；6f, locking cap；7, protection cap；8, attachment cap；9, gasket seal.

Detailed description of the invention

The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model Technical scheme be further described, but this utility model is not limited to these embodiments.

Embodiment one

As depicted in figs. 1 and 2, a kind of locking ball valve includes valve body 1, valve rod 3 and valve Core 2, has inner chamber in valve body 1, valve body 1 also has and valve body 1 intracavity inter-connection Water inlet 1a and outlet 1b, valve body 1 water inlet 1a connect have water inlet pipe.Valve body The outlet 1b of 1 is fixedly connected with tubular water out adapter 5, valve body 1 water inlet 1a Inwall on be provided with bulge loop one, the inwall of water out adapter 5 is provided with bulge loop two, valve Being provided with spool 2 in body 1 inner chamber, spool 2 is arranged on valve core seal ring one and spool is close Support between seal two and by valve core seal ring one and valve core seal ring two, valve core seal ring One is resisted against on bulge loop one, and valve core seal ring two is resisted against on bulge loop two.Spool 2 is in ball Shape, valve rod 3 is in shaft-like, and spool 2 has aquaporin 2a, the valve rod excessively running through spool 2 The lower end of 3 is connected with spool 2, the upper end of valve rod 3 through valve body 1 upper end and can It is connected with unlocking key 4, is provided with valve stem packing ring between valve rod 3 and valve body 1 and makes Formed between valve rod 3 and valve body 1 and seal.Valve rod 3 rotates and spool 2 can be driven to rotate, When mistake aquaporin 2a and the water inlet 1a and outlet 1b in spool 2 connects, ball valve It is in opening；When water inlet 1a and outlet 1b is cut off by spool 2, ball valve It is in cut-off state.

The upper end of valve body 1 is provided with jack 1c, and the upper end of valve rod 3 is positioned at jack 1c, The lower end of unlocking key 4 is inserted in jack 1c and is sleeved on upper end and and the valve of valve rod 3 The upper end of bar 3 forms spline fitted；Suppending hole 4a it is provided with on unlocking key 4.Jack It is positioned at the protected lid of top releasable connection 7 of valve rod 3 on the port of 1c, works as unlocking key 4 when extracting jack 1c, protection cap 7 is connected in the upper port of jack 1c and makes to insert Hole 1c upper port is closed.Positioning step 1d, positioning table it is provided with on the sidewall of jack 1c The projection 1e of protrusion it is provided with, on the lower surface of unlocking key 4 on the upper surface of rank 1d Be provided with the block 4b of protrusion, when unlocking key 4 be sleeved on valve rod 3 upper end and around When the axis of valve rod 3 rotates, block 4b can be resisted against on projection 1e.

The water side of water out adapter 5 is plugged with the adapter 6 with through hole, edge in adapter 6 Water inlet end and be arranged with jump ring 6b, retaining ring 6c, sealing ring successively to the direction of water side 6d, sealing ring 6e and locking cap 6f.The lateral surface of adapter 6 water inlet end arranges oriented The draw-in groove 6a that adapter 6 annular is recessed, is connected with jump ring 6b in draw-in groove 6a, water outlet connects It is provided with groove 5a, retaining ring 6c on the end face of 5 water sides to be installed in groove 5a And retaining ring 6c is resisted against on the bottom surface of groove 5a.Locking cap 6f is threaded in water outlet The water side of joint 5 also makes retaining ring 6c, sealing ring 6d and sealing ring 6e fix successively Between water out adapter 5 and locking cap 6f, the setting of sealing ring 6d makes water out adapter 5 And formed between adapter 6 and seal, the jump ring 6b when adapter 6 is moved in water out adapter 5 Can be resisted against on retaining ring 6c.The water side of adapter 6 is arranged with attachment cap 8, adapter Being provided with the bulge loop three of annular protrusion on the lateral surface of the water side of 6, attachment cap 8 is intake Being provided with the bulge loop four of annular protrusion on the internal face of end, bulge loop three is positioned at attachment cap 8 And be resisted against on the inner surface of bulge loop four.It is additionally provided with female thread on attachment cap 8 inwall, Attachment cap 8 is set on outlet pipe and is formed threaded, at attachment cap 8 inner connecting tube 6 And it is provided with gasket seal 9 making between outlet pipe and is formed close between adapter 6 and outlet pipe Envelope.

When being installed in pipeline by ball valve, the water inlet 1a of valve body 1 connects water inlet pipe, connects The water side of pipe 6 connects outlet pipe by attachment cap 8.Adapter 6 can be at water out adapter Move in 5, adjust adapter 6 according to the length of water inlet pipe and outlet pipe and extend into water outlet The length of joint 5, then by locking cap 6f lock, make retaining ring 6c, sealing ring 6d with And sealing ring 6e is sequentially fixed between outlet pipe and locking cap 6f and makes outlet pipe and connect Formed between pipe 6 and seal, the most not only facilitate the installation of ball valve but also decrease ball valve and pipe The probability that between road, leak source occurs, makes ball valve easy to use.After installing ball valve, beat Protection cap 7 on valve opening body 1 jack 1c, is inserted into unlocking key 4 in jack 1c And make the lower end of unlocking key 4 form spline fitted with the upper end of valve rod 3, rotate and open Key 4 band ovable valve stem 3 and spool 2 rotate, and make ball valve open.Key will be opened afterwards Spoon 4 is extracted, and covers protection cap 7, and the use state of ball valve can not arbitrarily change, and needs When changing the use state of ball valve, only need to open after protection cap 7 inserts unlocking key 4 and revolve Turn, locking ball valve convenient to use.

Specific embodiment described herein is only for example to this utility model spirit Explanation.This utility model person of ordinary skill in the field can be to described concrete Embodiment is made various amendment or supplements or use similar mode to substitute, but not Spirit of the present utility model can be deviateed or surmount model defined in appended claims Enclose.

Claims

1. a locking ball valve, including in shaft-like valve rod (3), the valve body with inner chamber (1) and the spool (2) that is arranged in valve body (1) inner chamber, on described valve body (1) There is the water inlet (1a) with valve body (1) intracavity inter-connection and outlet (1b), institute State spool (2) and there is aquaporin (2a), the described valve rod (3) excessively running through spool (2) Lower end be connected with spool (2), the upper end of described valve rod (3) is through valve body (1) Upper end circumferentially fixed connection have unlocking key (4), and described outlet (1b) is fixing even It is connected to tubular water out adapter (5), it is characterised in that described water out adapter (5) Water side is plugged with adapter (6), and described adapter arrives water side along water inlet end on (6) Direction is arranged with jump ring (6b), retaining ring (6c), sealing ring (6d) and lock successively Tight cap (6f), the lateral surface of described adapter (6) water inlet end is arranged in oriented adapter (6) The draw-in groove (6a) of annular recess, is connected with described jump ring (6b) in described draw-in groove (6a), Described locking cap (6f) is threaded in the water side of water out adapter (5), stops when described Move back ring (6c) and sealing ring (6d) is sequentially fixed at water out adapter (5) and locking cap (6f) Between time described water out adapter (5) with adapter (6) formed seal, when described adapter (6) When moving in water out adapter (5), described jump ring (6b) can be resisted against retaining ring (6c) On.

Locking ball valve the most according to claim 1, it is characterised in that described water outlet Groove (5a), described retaining ring (6c) it is provided with on the end face of joint (5) water side It is installed to interior and retaining ring (6c) the end face of groove (5a) and is resisted against groove (5a) On bottom surface.

Locking ball valve the most according to claim 1, it is characterised in that described locking Sealing ring (6e) it is fixed with between cap (6f) and sealing ring (6d).

4. according to the arbitrary described locking ball valve of claim 1-3, it is characterised in that institute The upper end stating valve body (1) is provided with jack (1c), and the upper end of described valve rod (3) is positioned at In jack (1c), the lower end of described unlocking key (4) is inserted in jack (1c) also It is sleeved on the upper end of valve rod (3) and forms spline fitted with the upper end of valve rod (3).

Locking ball valve the most according to claim 4, it is characterised in that described jack (1c) positioning step (1d) it is provided with on sidewall, described positioning step (1d) upper The projection (1e) of protrusion it is provided with, on the lower surface of described unlocking key (4) on end face It is provided with the block (4b) of protrusion, when unlocking key (4) is sleeved on the upper of valve rod (3) When end the axis around valve rod (3) rotate, described block (4b) can be resisted against projection (1e) on.

Locking ball valve the most according to claim 4, it is characterised in that open when described When jack (1c) extracted by tunkey spoon (4), the port of described jack (1c) is positioned at valve The protected lid of the top releasable connection (7) of bar (3).

Locking ball valve the most according to claim 1, it is characterised in that described unlatching Suppending hole (4a) it is provided with on key (4).