CN213206645U

CN213206645U - Film three-way closing and shunting pneumatic regulating valve

Info

Publication number: CN213206645U
Application number: CN202022292980.0U
Authority: CN
Inventors: 王余敏
Original assignee: Shanghai Shekon Automation Instrument Co ltd
Current assignee: Shanghai Shekon Automation Instrument Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-05-14
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to a governing valve technical field just discloses a membrane tee bend closes, reposition of redundant personnel pneumatic control valve, including the valve body, be located the connecting piece on valve body top, first opening has been seted up to one side of valve body, the second opening has been seted up to the opposite side of valve body, the inside of valve body is provided with the cavity, the first connector with first opening intercommunication is seted up to one side of cavity, the second connector with second opening intercommunication is seted up to the opposite side of cavity, the third opening with the cavity intercommunication is seted up to the bottom of valve body, the opening has been seted up in the connecting piece, opening and cavity intercommunication, the fixed pneumatic film executor that is provided with in top of connecting piece, the bottom activity of pneumatic film executor is provided with the valve rod, the tail end of valve rod passes the opening and stretches into in the cavity. The utility model discloses a through disassembling the connecting piece to the convenience is with trading the inside part of valve body.

Description

Film three-way closing and shunting pneumatic regulating valve

Technical Field

The utility model relates to a governing valve technical field specifically is a film tee bend closes, reposition of redundant personnel pneumatic control valve.

Background

At present, a three-way confluence regulating valve is a valve which is commonly applied in a pipeline of an automatic control system. Traditional tee bend confluence governing valve is because single structure, receive the fluid for a long time at the valve body and strike the back, the valve body is impaired comparatively seriously, the leakproofness also descends obviously, the inside spring of valve body also can receive certain damage, at this moment need follow the trade to the inside spring of valve body, and the majority of governing valves that have now are fixed through the screw, it is troublesome to disassemble, be difficult for following the trade to the part of inside, consequently, it closes to need to provide a film tee bend, reposition of redundant personnel pneumatic control valve solves above-mentioned technical problem.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a film tee bend closes, reposition of redundant personnel pneumatic control valve possesses and disassembles the convenience, and the problem of the inside impaired difficult renewal part of valve body has been solved to advantages such as the change internals of being convenient for.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a membrane tee bend closes, reposition of redundant personnel pneumatic control valve, includes the valve body, is located the connecting piece on valve body top, first opening has been seted up to one side of valve body, the second opening has been seted up to the opposite side of valve body, the inside of valve body is provided with the cavity, the first connecting port with first opening intercommunication is seted up to one side of cavity, the second connector with second opening intercommunication is seted up to the opposite side of cavity, the third opening with the cavity intercommunication is seted up to the bottom of valve body, the opening has been seted up in the connecting piece, opening and cavity intercommunication, the fixed pneumatic film executor that is provided with in top of connecting piece, the bottom activity of pneumatic film executor is provided with the valve rod, the tail end of valve rod passes the opening and stretches into in.

Preferably, the top fixedly connected with of opening cup joints the fixed block on the valve rod, an organic whole is provided with the spacing ring that is located the fixed block below on the valve rod, the fixed stopper that is located the spacing ring below that is provided with on the inside wall of opening, the spacing ring with fixedly connected with cup joints the first return spring on the valve rod between the stopper.

Preferably, the insertion holes are formed in two sides of the fixing block, the first accommodating cavities are formed in two sides of the through hole, the spring strip is fixedly arranged in the first accommodating cavities, one end of the spring strip is fixedly connected with the limiting block, and one end of the limiting block extends into the insertion holes.

Preferably, a second containing cavity located on two sides of the through hole is formed in the top of the connecting piece, a second return spring is fixedly arranged in the second containing cavity, a movable rod is fixedly connected to one end of the second return spring, a through hole is formed between the first containing cavity and the second containing cavity, and a connecting rod located in the through hole is fixedly connected between the movable rod and the limiting block.

Preferably, the interface has been seted up on the top of valve body, in the bottom of connecting piece stretched into the interface, and the bottom mounting of connecting piece was provided with the sealing washer, the both sides of interface all seted up threaded hole, the both sides of connecting piece all seted up with screw hole assorted mounting hole, threaded hole endotheca has connect the threaded rod, and the one end of threaded rod stretches into in the mounting hole.

Preferably, the bottom mounting of valve rod is provided with the valve plug, the upper and lower both ends of valve plug all are fixed and are provided with the sealing ring.

Compared with the prior art, the utility model provides a film tee bend closes, reposition of redundant personnel pneumatic control valve possesses following beneficial effect:

1. the utility model discloses an interface and connecting piece fixed connection on the valve body, the cooperation through the screw hole that the interface both sides were seted up and the threaded rod is fixed connecting piece and interface, and the convenience is changed the connecting piece.

2. The utility model discloses a fixed block and stopper cooperation are injectd first return spring in the opening to the opening holds the limiting block of intracavity through both sides and fixes the fixed block, when needs change first return spring, only need remove the movable rod can be easily take out the fixed block, make the change of spring more convenient.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

fig. 4 is an enlarged schematic view of the portion C in fig. 1.

Wherein: 1. a valve body; 2. a first port; 3. a second port; 4. a chamber; 41. a first connection port; 42. a second connection port; 43. a third port; 5. a connecting member; 51. a port; 511. a first cavity; 512. a spring bar; 513. a limiting block; 52. a fixed block; 521. an insertion opening; 53. a limiting block; 54. a second cavity; 541. a second return spring; 542. a movable rod; 55. a through hole; 56. a connecting rod; 57. a seal ring; 58. mounting holes; 6. a pneumatic membrane actuator; 61. a valve stem; 62. a limiting ring; 63. a first return spring; 64. a valve plug; 65. a seal ring; 7. an interface; 71. a threaded hole; 72. a threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a membrane three-way union and shunt pneumatic control valve comprises a valve body 1 and a connecting member 5 located at the top end of the valve body 1, wherein one side of the valve body 1 is provided with a first through opening 2, the other side of the valve body 1 is provided with a second through opening 3, a chamber 4 is arranged inside the valve body 1, one side of the chamber 4 is provided with a first connecting opening 41 communicated with the first through opening 2, the other side of the chamber 4 is provided with a second connecting opening 42 communicated with the second through opening 3, the bottom end of the valve body 1 is provided with a third through opening 43 communicated with the chamber 4, the connecting member 5 is internally provided with a through opening 51, the through opening 51 is communicated with the chamber 4, a pneumatic membrane actuator 6 is fixedly arranged above the connecting member 5, the bottom end of the pneumatic membrane actuator 6 is movably provided with a valve rod 61, the tail end of the valve rod, the upper and lower ends of the valve plug 64 are fixedly provided with sealing rings 65. Promote valve rod 61 through pneumatic film actuator 6, drive valve plug 64 through valve rod 61 and adjust the passageway, exert different power to valve rod 61 according to 6 through pneumatic film actuator, make valve plug 64 move down to different positions to the realization is adjusted the input of different passageways.

The top fixedly connected with of opening 51 cup joints fixed block 52 on valve rod 61, and the integrative spacing ring 62 that is located the fixed block 52 below that is provided with on valve rod 61, and the fixed stopper 53 that is located the spacing ring 62 below that is provided with on opening 51's the inside wall, fixedly connected with cup joints the first return spring 63 on valve rod 61 between spacing ring 62 and the stopper 53. The first return spring 63 in the port 51 is fixed by the fixing block 52, and when the pneumatic diaphragm actuator 6 stops operating, the valve rod 61 is pushed upward by the first return spring 63, so that the first port 2, the second port 3, and the third port 43 are all opened.

Preferably, the two sides of the fixed block 52 are both provided with an insertion opening 521, the two sides of the through opening 51 are both provided with a first containing cavity 511, a spring bar 512 is fixedly arranged in the first containing cavity 511, one end of the spring bar 512 is fixedly connected with a limiting block 513, and one end of the limiting block 513 extends into the insertion opening 521. The regulating valve can work normally by fixing the fixing block 52 on the top end of the through hole 51 through the limiting block 513.

Preferably, the top of the connecting member 5 is provided with a second accommodating cavity 54 located at two sides of the through hole 51, a second return spring 541 is fixedly arranged in the second accommodating cavity 54, one end of the second return spring 541 is fixedly connected with a movable rod 542, a through hole 55 is arranged between the first accommodating cavity 511 and the second accommodating cavity 54, and a connecting rod 56 located in the through hole 55 is fixedly connected between the movable rod 542 and the limiting block 513. When the spring parts in the connecting piece 5 need to be replaced, only the movable rod 542 needs to be moved, the limiting block 513 is brought into the first accommodating cavity 511, the fixing block 53 is not limited, and therefore the parts in the connecting piece 5 are taken out for replacement.

Interface 7 has been seted up on the top of valve body 1, and in the bottom of connecting piece 5 stretched into interface 7, and the bottom mounting of connecting piece 5 was provided with sealing washer 57, and threaded hole 71 has all been seted up to the both sides of interface 7, and the both sides of connecting piece 5 all seted up with threaded hole 71 assorted mounting hole 58, has cup jointed threaded rod 72 in the threaded hole 71, and the one end of threaded rod 72 stretches into in the mounting hole 58. By turning the threaded rod 72, the connecting element 5 and the mouthpiece 7 can be released, so that the connecting element 5 can be removed and the sealing ring 57 at the bottom of the connecting element 5 prevents liquid flowing through the channel from spilling into the opening 51.

When using, it adjusts first port 2, second port 3 and third port 43 to drive valve plug 64 through pneumatic membrane executor 6 promotion valve rod 61, when valve plug 64 promoted half-time, make first port 2 and third port 43 communicate, liquid can flow through from first port 2 and third port 43, when valve plug 64 was pushed the bottom completely, first port 2 and second port 3 can communicate, liquid flows through from first port 2 and second port 3, when pneumatic membrane executor 6 is not exerting pressure, first recoil spring 63 can upwards promote valve rod 61, make first port 2, second port 3 and the whole intercommunication of third port 43, and fixed block 52 can take out through removing movable rod 542, thereby conveniently change the part in the connecting piece 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a membrane tee bend closes, reposition of redundant personnel pneumatic control valve, includes valve body (1), is located connecting piece (5) on valve body (1) top, its characterized in that: a first through hole (2) is arranged on one side of the valve body (1), a second through hole (3) is arranged on the other side of the valve body (1), a cavity (4) is arranged in the valve body (1), a first connecting port (41) communicated with the first through hole (2) is arranged on one side of the cavity (4), the other side of the chamber (4) is provided with a second connecting port (42) communicated with the second through port (3), the bottom end of the valve body (1) is provided with a third port (43) communicated with the cavity (4), a through hole (51) is arranged in the connecting piece (5), the through hole (51) is communicated with the cavity (4), a pneumatic membrane actuator (6) is fixedly arranged above the connecting piece (5), a valve rod (61) is movably arranged at the bottom end of the pneumatic film actuator (6), the tail end of the valve rod (61) penetrates through the through hole (51) and extends into the chamber (4).

2. The membrane three-way closing and shunting pneumatic regulating valve according to claim 1, characterized in that: the top fixedly connected with of opening (51) cup joints fixed block (52) on valve rod (61), an organic whole is provided with spacing ring (62) that are located fixed block (52) below on valve rod (61), fixed stopper (53) that are located spacing ring (62) below that are provided with on the inside wall of opening (51), spacing ring (62) with fixedly connected with cup joints first return spring (63) on valve rod (61) between stopper (53).

3. The membrane three-way closing and shunting pneumatic regulating valve according to claim 2, characterized in that: the inserting hole (521) is formed in each of two sides of the fixing block (52), the first accommodating cavity (511) is formed in each of two sides of the through hole (51), the spring strip (512) is fixedly arranged in the first accommodating cavity (511), one end of the spring strip (512) is fixedly connected with the limiting block (513), and one end of the limiting block (513) extends into the inserting hole (521).

4. The membrane three-way closing and shunting pneumatic regulating valve according to claim 3, characterized in that: the top of the connecting piece (5) is provided with a second containing cavity (54) located on two sides of the through hole (51), a second return spring (541) is fixedly arranged in the second containing cavity (54), one end of the second return spring (541) is fixedly connected with a movable rod (542), a through hole (55) is formed between the first containing cavity (511) and the second containing cavity (54), and a connecting rod (56) located in the through hole (55) is fixedly connected between the movable rod (542) and the limiting block (513).

5. The membrane three-way closing and shunting pneumatic regulating valve according to claim 1, characterized in that: interface (7) have been seted up on the top of valve body (1), the bottom of connecting piece (5) stretches into in interface (7), and the bottom mounting of connecting piece (5) is provided with sealing washer (57), threaded hole (71) have all been seted up to the both sides of interface (7), the both sides of connecting piece (5) all seted up with threaded hole (71) assorted mounting hole (58), threaded rod (72) have been cup jointed in threaded hole (71), and the one end of threaded rod (72) stretches into in mounting hole (58).

6. The membrane three-way closing and shunting pneumatic regulating valve according to claim 1, characterized in that: the bottom mounting of valve rod (61) is provided with valve plug (64), the upper and lower both ends of valve plug (64) are all fixed and are provided with sealing ring (65).