CN209084079U - A kind of three-chip type forged steel swing check valve - Google Patents

Abstract

The utility model relates to a kind of three-chip type forged steel swing check valves, including valve body and identical two connectors of structure；Two connectors offer fluid channel close to one end of valve body, valve body is symmetrically fixedly connected with infusion port close to the both ends of two connectors, two infusion ports are respectively engaged in corresponding fluid channel, valve body circulation road is equipped in valve body, flap is installed in valve body circulation road, fixing sleeve is connected to first bearing on the lateral wall of valve body, symmetrical fixing sleeve is connected to driving gear on the annular outer side wall of first bearing, support frame is symmetrically arranged with about valve body between each connector and valve body, support frame is fixedly connected on the lateral wall of valve body, support frame is fixedly connected with second bearing far from one end of valve body, the fixed sleeve for being rotatably connected to both ends open in second bearing, sleeve is fixedly connected with the driven gear being meshed with driving gear far from one end of connector.The utility model sealing effect is good, is easily installed, and antileaking.

Description

A kind of three-chip type forged steel swing check valve

Technical field

The utility model belongs to valve technology field, is related to non-return valve technology more particularly to a kind of rotation of three-chip type forged steel is opened Formula check-valves.

Background technique

Check-valves is also known as check valve or non-return valve, and effect is to prevent the medium in pipeline from flowing backwards.The bottom that pump sump closes Valve also belongs to check-valves class.Forged steel check-valves has two kinds of body lid connection design forms: the first is that body bonnet bolt connection forged steel stops Valve is returned, by the valve that this type of attachment designs, valve body is connected with valve deck, and spiral wound gasket sealing, advantage is just In maintenance；Second of body lid welds sealing forged steel check-valves entirely, by the valve that this type of attachment designs, valve body and valve deck spiral shell Mosquito connection, full weldering sealing, advantage is No leakage.At present in the check-valves of oval flange pump discharge installation, the technology of use is The check-valves of internal screw thread screwed connection, front and back connection need to increase various to pipe fittings such as silk, loose joints.It is threadedly coupled to realize Sealing purpose, need to fabricate dedicated leakproofness taper pipe thread, while needing to wind the rope made of hemp and raw material band at screw thread. The above product still has the processing of more problem and shortage, especially taper pipe thread, and machining accuracy is unqualified to easily cause sealing Effect is poor, difficult to install, is easy leak.

Utility model content

The utility model aims to solve the problem that check-valves is to realize the sealing purpose being threadedly coupled in the prior art, needs to process system Make dedicated leakproofness taper pipe thread, and the processing of taper pipe thread, machining accuracy is unqualified to easily cause poor sealing effect, and installation is tired Difficulty, is easy the technical problems such as leak and to provide a kind of sealing effect good, is easily installed, and a kind of three-chip type forged steel of antileaking Swing check valve.

The utility model is adopted the technical scheme that solve technical problem present in well-known technique:

A kind of three-chip type forged steel swing check valve, it is characterised in that: including identical two connectors of valve body and structure； Two connectors offer fluid channel close to one end of valve body, and the valve body is symmetrical close to the both ends of two connectors It is fixedly connected with infusion port, two infusion ports are respectively engaged in corresponding fluid channel, and valve body is equipped in the valve body Circulation road is equipped with flap in the valve body circulation road, and fixing sleeve is connected to first bearing on the lateral wall of the valve body, and described Symmetrical fixing sleeve is connected to driving gear on the annular outer side wall of one bearing, about valve body pair between each connector and valve body Claim to be equipped with support frame, support frame as described above is fixedly connected on the lateral wall of valve body, and support frame as described above is fixed far from one end of valve body It is connected with second bearing, the fixed sleeve for being rotatably connected to both ends open in the second bearing, the sleeve is far from connector One end be fixedly connected with the driven gear being meshed with driving gear, threaded rod is equipped in the sleeve, and threaded rod is close One end of driven gear is fixedly connected at the center of driving gear, and the threaded rod passes through sleeve far from one end of driven gear Opening and extend outwardly, and be threaded with thread barrel, the hand of spiral of threaded rod described in both ends is on the contrary, the connector pair Answer the position of thread barrel to offer fixing groove, the slot bottom of the fixing groove is fixedly connected with telescopic rod, the telescopic rod it is another End is fixedly connected on thread barrel far from one end of telescopic rod, and the cross section of the fixing groove and thread barrel matches.

And, two infusion ports are mounted on fixed plate on the annular inner side wall of flap one end, described solid It is fixedly installed with strainer on fixed board, symmetrical two fixed blocks, two fixed blocks are equipped between the fixed plate and flap It is fixedly connected on the annular inner side wall of infusion port, and fixed plate offsets with corresponding two fixed blocks, closes in the fixed plate Threaded hole is symmetrically offered in strainer, the fixed block offers screw thread close to the position that the side of fixed plate corresponds to threaded hole Slot, the corresponding threaded hole of every two and thread groove are threaded with a bolt jointly.

And: sliding slot is symmetrically offered on the correspondence cell wall of the fixing groove, and one is slidably connected in the sliding slot Sliding block, on the correspondence barrel that one end of thread barrel is fixedly connected on thread barrel jointly, the sliding block connects two sliding blocks It connects in thread barrel on the barrel of one end of telescopic rod.

And: O-ring seal is embedded on the gasket of the flap.

And: the junction of the infusion port and fluid channel is equipped with gasket.

And: the annular sidewall of the first bearing is equipped with anti-skid chequer.

The utility model has the advantages and positive effects of:

1) the utility model links together valve body and connector, and operating personnel only needs the thread barrel on connector It is directed at threaded rod, first bearing is rotated, thread barrel can be screwed on to threaded rod, and then connector and valve body are closely connected to Together, sealing effect is good, is easily installed, and antileaking；

2) the utility model is filtered by the strainer in fixed plate to by the liquid of valve body inner valve body circulation road, is increased The clean-up effect to water body is added, and fixed plate can be by bolt disassembly, convenient for clearing up strainer.

Detailed description of the invention

Fig. 1 is the schematic diagram of internal structure of the utility model；

Fig. 2 is partial enlarged view at A in Fig. 1.

In figure: 1, valve body；2, connector；3, fluid channel 4, infusion port；5, valve body circulation road；6, flap；7, first axle It holds；8, driving gear；9, support frame；10, second bearing；11, sleeve；12, driven gear；13, threaded rod；14, thread barrel； 15, fixing groove；16, telescopic rod；17, fixed plate；18, fixed block；19, threaded hole；20, thread groove；21, bolt；22, sliding slot； 23, sliding block；24, strainer.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is only retouched The property stated, it is not restrictive, protection scope of this utility model cannot be limited by this:

A kind of three-chip type forged steel swing check valve includes two connections identical with structure of valve body 1 referring to FIG. 1-2, Body 2；Two connectors offer fluid channel 3 close to one end of valve body, and valve body is symmetrically solid close to the both ends of two connectors Surely it is connected with infusion port 4, two infusion ports are respectively engaged in corresponding fluid channel, and valve body circulation road 5, valve are equipped in valve body Flap 6 is installed, fixing sleeve is connected to first bearing 7, the annular outer side wall of first bearing on the lateral wall of valve body in body circulation road Upper symmetrical fixing sleeve is connected to driving gear 8, is symmetrically arranged with support frame 9, support frame about valve body between each connector and valve body It is fixedly connected on the lateral wall of valve body, support frame is fixedly connected with second bearing 10 far from one end of valve body, in second bearing The fixed sleeve 11 for being rotatably connected to both ends open, sleeve are fixedly connected with far from one end of connector and are meshed with driving gear Driven gear 12, threaded rod 13 is equipped in sleeve, and threaded rod is fixedly connected on driving gear close to one end of driven gear Center at, threaded rod passes through the opening of sleeve far from one end of driven gear and extends outwardly, and is threaded with thread barrel 14, the hand of spiral of tap bolt is on the contrary, the position that connector corresponds to thread barrel offers fixing groove 15, the slot bottom of fixing groove It is fixedly connected with telescopic rod 16, the other end of telescopic rod is fixedly connected on thread barrel far from one end of telescopic rod, fixes The cross section of slot and thread barrel matches；Sliding slot 22 is symmetrically offered on the correspondence cell wall of fixing groove, is slidably connected in sliding slot One sliding block 23, two sliding blocks are on the correspondence barrel that one end of thread barrel is fixedly connected on thread barrel jointly, sliding block connection In thread barrel on the barrel of one end of telescopic rod；O-ring seal is embedded on the gasket of flap；Infusion port and fluid channel Junction be equipped with gasket；The annular sidewall of first bearing is equipped with anti-skid chequer.

Two infusion ports are mounted on fixed plate 17 on the annular inner side wall of flap one end, are fixedly mounted in fixed plate There is strainer 24, symmetrical two fixed blocks 18 are equipped between fixed plate and flap, two fixed blocks are fixedly connected on infusion port On annular inner side wall, and fixed plate offsets with corresponding two fixed blocks, symmetrically offers threaded hole about strainer in fixed plate 19, fixed block offers thread groove 20 close to the position that the side of fixed plate corresponds to threaded hole, the corresponding threaded hole of every two and Thread groove is threaded with a bolt 21 jointly.

The working procedure of this check-valves is:

1) fluid channel of connector is respectively aligned to the infusion port of valve body, and is inserted into；

2) thread barrel is pulled out, so that thread barrel covers on corresponding threaded rod；

3) first bearing is rotated, first bearing drives driving gear rotation, drives spiral shell by the driven gear engaged Rasp bar 13 rotates；

4) screw shell is subjected to displacement according to the steering of threaded rod, and is threaded on threaded rod, by connector and valve Body links together；

5) it is filtered by the strainer in fixed plate to by the liquid of valve body inner valve body circulation road；

6) rotating bolt unloads bolt out of thread groove and threaded hole；

7) fixed plate is dismantled down, and strainer is cleaned；

8) fixed plate is mounted on fixed block by bolt.

Although disclosing the embodiments of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be with Understand: departing from the utility model and spirit and scope of the appended claims, various substitutions, changes and modifications are all can Can, therefore, the scope of the utility model is not limited to the embodiment and attached drawing disclosure of that.

Claims (6)

1. a kind of three-chip type forged steel swing check valve, it is characterised in that: including identical two connectors of valve body and structure；Two A connector offers fluid channel close to one end of valve body, and the valve body is symmetrically solid close to the both ends of two connectors Surely it is connected with infusion port, two infusion ports are respectively engaged in corresponding fluid channel, and valve body stream is equipped in the valve body Channel is equipped with flap in the valve body circulation road, and fixing sleeve is connected to first bearing on the lateral wall of the valve body, and described first Symmetrical fixing sleeve is connected to driving gear on the annular outer side wall of bearing, symmetrical about valve body between each connector and valve body Equipped with support frame, support frame as described above is fixedly connected on the lateral wall of valve body, and the one end of support frame as described above far from valve body is fixed to be connected It is connected to second bearing, the fixed sleeve for being rotatably connected to both ends open in the second bearing, the sleeve is far from connector One end is fixedly connected with the driven gear being meshed with driving gear, is equipped with threaded rod in the sleeve, and threaded rod close to from One end of moving gear is fixedly connected at the center of driving gear, and the threaded rod passes through sleeve far from one end of driven gear It is open and extends outwardly, and be threaded with thread barrel, the hand of spiral of threaded rod described in both ends is on the contrary, the connector is corresponding The position of thread barrel offers fixing groove, and the slot bottom of the fixing groove is fixedly connected with telescopic rod, the other end of the telescopic rod Thread barrel is fixedly connected on far from one end of telescopic rod, the cross section of the fixing groove and thread barrel matches.

2. a kind of three-chip type forged steel swing check valve according to claim 1, it is characterised in that: two infusion ports It is mounted on fixed plate on the annular inner side wall of flap one end, strainer, the fixation are fixedly installed in the fixed plate Symmetrical two fixed blocks are equipped between plate and flap, two fixed blocks are fixedly connected on the annular inner side wall of infusion port On, and fixed plate offsets with corresponding two fixed blocks, symmetrically offers threaded hole about strainer in the fixed plate, it is described solid Determine block and offers thread groove, the corresponding threaded hole of every two and screw thread close to the position that the side of fixed plate corresponds to threaded hole Slot is threaded with a bolt jointly.

3. a kind of three-chip type forged steel swing check valve according to claim 1, it is characterised in that: pair of the fixing groove It answers and symmetrically offers sliding slot on cell wall, a sliding block is slidably connected in the sliding slot, two sliding blocks are close to thread barrel One end is fixedly connected on jointly on the correspondence barrel of thread barrel, and the sliding block is connected to thread barrel close to the cylinder of one end of telescopic rod On wall.

4. a kind of three-chip type forged steel swing check valve according to claim 1, it is characterised in that: the sealing of the flap O-ring seal is embedded on pad.

5. a kind of three-chip type forged steel swing check valve according to claim 1, it is characterised in that: the infusion port and stream The junction in body channel is equipped with gasket.

6. a kind of three-chip type forged steel swing check valve according to claim 1, it is characterised in that: the first bearing Annular sidewall is equipped with anti-skid chequer.