CN214466493U

CN214466493U - Film type positive-acting valve actuating mechanism

Info

Publication number: CN214466493U
Application number: CN202120517148.8U
Authority: CN
Inventors: 李亮
Original assignee: Tianjin Baicere Valve Manufacturing Co ltd
Current assignee: Tianjin Baicere Valve Manufacturing Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-10-22
Anticipated expiration: 2031-03-11

Abstract

The utility model relates to a valve actuating mechanism technical field just discloses a film type positive action valve actuating mechanism, including the diaphragm chamber epicoele, the fixed grafting of top surface of diaphragm chamber epicoele has the intake pipe. The utility model discloses a place the diaphragm chamber epicoele on the diaphragm chamber cavity of resorption, then rotate the diaphragm chamber epicoele and drive sealed fixture block and remove and insert in the sealed inserted block, then fix two plectanes in inserting the plectane with the inserted bar, when inside diaphragm damages, make sealed fixture block and sealed inserted block separation through upwards extracting inserted bar and rotatory diaphragm chamber epicoele, then take out the diaphragm chamber epicoele and change inside diaphragm, need not use a large amount of nuts and bolt to fix, it is more swift during the dismantlement, make the diaphragm chamber epicoele move down and the sealed pad of extrusion makes sealed pad deformation through rotatory diaphragm chamber epicoele, make the sealed rubber deformation on surface through sealed inserted block and sealed fixture block extrusion each other, the leakproofness between diaphragm chamber epicoele and the diaphragm chamber cavity of resorption is better.

Description

Film type positive-acting valve actuating mechanism

Technical Field

The utility model relates to a valve actuating mechanism technical field especially relates to a film type positive valve actuating mechanism.

Background

The pneumatic diaphragm type actuating mechanism is characterized in that an elastic diaphragm is used for converting input air pressure into thrust to a push rod, and the valve core is correspondingly displaced through the push rod to change the opening degree of a valve. The pneumatic piston type actuator outputs thrust by a piston in a cylinder, and can obtain larger thrust due to higher allowable pressure of the cylinder, and can be easily manufactured into a long-stroke actuator. A typical pneumatic diaphragm actuator consists essentially of an elastic diaphragm, a compression spring and a push rod.

Inside diaphragm of current part valve when using leads to the diaphragm to damage because long-term bending back and forth easily, the last die cavity and the lower die cavity of current part valve adopt a large amount of nuts and screw to fix, need demolish the nut in proper order when the diaphragm damages, then change inside diaphragm, it is comparatively troublesome to dismantle, current part valve is fixed die cavity and lower die cavity through the nut when the installation, upward there is the gap easily between die cavity and the lower die cavity, it is not good to go up the sealed of die cavity and lower die cavity.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: inside diaphragm of current partial valve when using leads to the diaphragm to damage because long-term bending back and forth easily, the last die cavity and the lower die cavity of current partial valve adopt a large amount of nuts and screw to fix, need demolish the nut in proper order when the diaphragm damages, then change inside diaphragm, it is comparatively troublesome to dismantle, current partial valve is fixed die cavity and lower die cavity through the nut when the installation, go up and have the gap easily between die cavity and the lower die cavity, it is not good with the sealed of die cavity down to go up the die cavity, and the positive valve actuating mechanism that acts on of a film type that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a thin film type positive valve actuating mechanism comprises a film chamber upper cavity, wherein an air inlet pipe is fixedly inserted and connected to the top surface of the film chamber upper cavity, a film chamber lower cavity is lapped on the bottom surface of the film chamber upper cavity, circular plates are fixedly connected to the side surfaces of the film chamber upper cavity and the film chamber lower cavity in a sleeved mode, an insertion rod is connected to the side surface of each circular plate in a threaded mode, sliding grooves are formed in the opposite sides of the two circular plates, a sealing clamping block is fixedly connected to the inner wall of the upper sliding groove and is connected with the inner wall of the lower sliding groove in a sliding mode, a sealing insertion block is fixedly connected to the inner wall of the lower sliding groove and is connected with the side surface of the lower sliding groove in a sliding mode, a spring is fixedly connected to the bottom surface of the membrane, a valve rod is fixedly connected to the bottom surface of the membrane, the utility model discloses a diaphragm valve, including diaphragm, diaphragm chamber, valve rod, spring, support frame, valve seat, valve rod, diaphragm chamber, diaphragm chamber, diaphragm.

Preferably, the sealing gaskets are bonded on the opposite sides of the upper film chamber cavity and the lower film chamber cavity.

Preferably, the sealing fixture block consists of a cylinder and an arc block, and the side surface of the sealing fixture block is bonded with a sponge.

Preferably, the width of the sealing insert block is twice of that of the sealing fixture block, and the inner wall of the sealing insert block is in a shape of a Chinese character 'tu'.

Preferably, the inner filler of the sealing sleeve is made of asbestos fabric, and the inner wall of the sealing sleeve is in sliding connection with the side face of the valve rod.

Preferably, the side surface of the inserted link is bonded with moisture-proof cotton, and the diameter of the top end of the inserted link is twice of that of the bottom end of the inserted link.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a place the diaphragm chamber epicoele on the diaphragm chamber cavity of resorption, then rotate the diaphragm chamber epicoele and drive sealed fixture block and remove and insert in the sealed inserted block, then fix two plectanes in inserting the plectanes with the inserted bar, when inside diaphragm damaged, make sealed fixture block and sealed inserted block separation through upwards extracting the inserted bar and rotating the diaphragm chamber epicoele, then take out the diaphragm chamber epicoele and change inside diaphragm, need not use a large amount of nuts and bolt to fix, it is more swift during the dismantlement.

(2) The utility model discloses a put the diaphragm chamber epicoele on the diaphragm chamber die cavity and rotatory diaphragm chamber epicoele, drive through the diaphragm chamber epicoele and seal the fixture block rotatory and insert sealed the piece in, make the diaphragm chamber epicoele move down and the extrusion seal pad makes sealed pad deformation through rotatory diaphragm chamber epicoele, make the sealing rubber deformation on surface through sealed the piece and the extrusion of sealed fixture block each other, the leakproofness between diaphragm chamber epicoele and the diaphragm chamber die cavity is better.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a sectional view of the three-dimensional structure of the present invention;

fig. 3 is a sectional view of the partial three-dimensional expansion structure of the present invention.

In the figure: 1. a membrane chamber upper cavity; 2. an air inlet pipe; 3. a lower cavity of the membrane chamber; 4. a circular plate; 5. a chute; 6. sealing the clamping block; 7. sealing the insert block; 8. a membrane; 9. a valve stem; 10. a spring; 11. inserting a rod; 12. a support frame; 13. sealing sleeves; 14. a valve seat; 15. a connecting rod; 16. a limiting block; 17. a barrier plate.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a thin film type positive valve actuator comprises a film chamber upper cavity 1, an air inlet pipe 2 is fixedly inserted and connected to the top surface of the film chamber upper cavity 1, a film chamber lower cavity 3 is lapped on the bottom surface of the film chamber upper cavity 1, a sealing gasket is bonded to one side of the film chamber upper cavity 1 opposite to the film chamber lower cavity 3, the sealing performance of the inner part of the film chamber upper cavity 1 fixed to the film chamber lower cavity 3 is guaranteed through the sealing gasket, a circular plate 4 is fixedly sleeved on the side surfaces of the film chamber upper cavity 1 and the film chamber lower cavity 3, an insertion rod 11 is in threaded connection with the side surface of the circular plate 4, moisture-proof cotton is bonded to the side surface of the insertion rod 11, the diameter of the top end of the insertion rod 11 is twice of the diameter of the bottom end of the insertion rod 11, the film chamber upper cavity 1 and the film chamber lower cavity 3 are fixed through the insertion rod 11 to prevent the film chamber upper cavity 1 and the film chamber lower cavity 3 from moving, a sliding groove 5 is formed on one side of each of the two circular plates 4, a sealing fixture block 6 is fixedly connected to the inner wall of the upper sliding groove 5, the sealing fixture block 6 is composed of a cylinder and an arc block, the side surface of the sealing fixture block 6 is bonded with sponge, the sealing fixture block 6 and the sealing insert block 7 are tightly closed through the sponge, the sealing fixture block 6 is in sliding connection with the inner wall of the lower sliding groove 5, the inner wall of the lower sliding groove 5 is fixedly connected with the sealing insert block 7, the width of the sealing insert block 7 is twice of the width of the sealing fixture block 6, the inner wall of the sealing insert block 7 is in a shape like a Chinese character 'tu', the sealing fixture block 6 is prevented from being directly taken out from the upper side of the sealing insert block 7, the side surface of the sealing insert block 7 is in sliding connection with the inner wall of the upper sliding groove 5, the inner wall of the sealing insert block 7 is in sliding connection with the inner wall of the sealing fixture block 6, the side surface of the inner wall of the membrane chamber upper chamber 1 is fixedly connected with a membrane 8, the bottom surface of the membrane 8 is fixedly connected with a valve rod 9, the bottom surface of the membrane 8 is fixedly connected with a spring 10, one end of the spring 10 far away from the membrane 8 is fixedly connected with the bottom surface of the inner wall of the membrane chamber lower chamber 3, the side of spring 10 and the side sliding connection of valve rod 9, the bottom surface fixedly connected with braced frame 12 of diaphragm chamber lower chamber 3, the bottom surface fixedly connected with seal cover 13 of braced frame 12, the inside filler of seal cover 13 is the asbestos fabric, the inner wall of seal cover 13 and the side sliding connection of valve rod 9, prevent through seal cover 13 that valve rod 9 leads to the gas leakage in the disk seat 14 when reciprocating, guarantee the gas tightness of device, the fixed disk seat 14 that has cup jointed in side of seal cover 13, the lower extreme of valve rod 9 passes the bottom surface of diaphragm chamber lower chamber 3 and the fixed connecting rod 15 that has cup jointed, the both ends of connecting rod 15 pass the left and right sides and the fixedly connected with stopper 16 of braced frame 12 respectively, the lower extreme of valve rod 9 extends to the inside of disk seat 14 and fixedly connected with barrier plate 17.

The utility model discloses in, during the user uses the device, at first place membrane chamber epicoele 1 on membrane chamber lower chamber 3, then rotate membrane chamber epicoele 1 and drive sealed fixture block 6 and remove and insert in sealed inserted block 7, then fix two plectanes 4 in inserting plectane 4 with inserted bar 11, accomplish the assembly of membrane chamber epicoele 1 with membrane chamber lower chamber 3, inject into gaseous messenger's diaphragm 8 through intake pipe 2 during the use and drive valve rod 9 and move down, it moves down and makes disk seat 14 seal to drive barrier plate 17 through valve rod 9.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. A membrane type positive-acting valve actuator comprising a membrane chamber cavity (1), characterized in that: an air inlet pipe (2) is fixedly inserted and connected to the top surface of the upper membrane chamber cavity (1), a lower membrane chamber cavity (3) is lapped on the bottom surface of the upper membrane chamber cavity (1), circular plates (4) are fixedly sleeved on the side surfaces of the upper membrane chamber cavity (1) and the lower membrane chamber cavity (3), an inserting rod (11) is in threaded connection with the side surfaces of the circular plates (4), sliding grooves (5) are formed in two opposite sides of the circular plates (4), a sealing clamping block (6) is fixedly connected to the inner wall of the sliding groove (5) at the upper side, the sealing clamping block (6) is in sliding connection with the inner wall of the sliding groove (5) at the lower side, a sealing inserting block (7) is fixedly connected to the inner wall of the sliding groove (5) at the upper side, the inner wall of the sealing inserting block (7) is in sliding connection with the inner wall of the sealing clamping block (6), a membrane (8) is fixedly connected to the side surface of the inner wall of the upper membrane chamber cavity (1), the bottom surface of the diaphragm (8) is fixedly connected with a valve rod (9), the bottom surface of the diaphragm (8) is fixedly connected with a spring (10), one end of the spring (10) far away from the diaphragm (8) is fixedly connected with the bottom surface of the inner wall of the lower cavity (3) of the diaphragm chamber, the side surface of the spring (10) is connected with the side surface of the valve rod (9) in a sliding way, the bottom surface of the lower cavity (3) of the membrane chamber is fixedly connected with a supporting frame (12), the bottom surface of the supporting frame (12) is fixedly connected with a sealing sleeve (13), the side surface of the sealing sleeve (13) is fixedly sleeved with a valve seat (14), the lower end of the valve rod (9) penetrates through the bottom surface of the lower cavity (3) of the membrane chamber and is fixedly sleeved with a connecting rod (15), two ends of the connecting rod (15) respectively penetrate through the left side and the right side of the supporting frame (12) and are fixedly connected with limit blocks (16), the lower end of the valve rod (9) extends to the interior of the valve seat (14) and is fixedly connected with a blocking plate (17).

2. The membrane type positive-acting valve actuator according to claim 1, wherein a gasket is bonded to the side of the upper chamber (1) opposite to the lower chamber (3).

3. The film type positive-acting valve actuator according to claim 1, wherein the sealing latch (6) is composed of a cylinder and an arc block, and the side surface of the sealing latch (6) is bonded with a sponge.

4. The membrane type positive-acting valve actuator according to claim 1, wherein the width of the sealing insert (7) is twice the width of the sealing cartridge (6), and the inner wall of the sealing insert (7) is in the shape of a "convex".

5. A positive-acting valve actuator of the membrane type according to claim 1, characterized in that the internal filling of the sealing sleeve (13) is an asbestos fabric, the inner wall of the sealing sleeve (13) being in sliding connection with the side of the valve stem (9).

6. A membrane type positive action valve actuator according to claim 1, wherein the insert rod (11) is glued on its sides with moisture proof cotton, the diameter of the top end of the insert rod (11) being twice the diameter of the bottom end.