CN217762175U

CN217762175U - Manual diaphragm valve

Info

Publication number: CN217762175U
Application number: CN202221944934.7U
Authority: CN
Inventors: 花成秀; 李海涛
Original assignee: Zhejiang Aomi Fluid Equipment Co ltd
Current assignee: Zhejiang Aomi Fluid Equipment Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-08
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a manual diaphragm valve, including valve body, diaphragm layer and valve seat, the diaphragm layer is held by the upper plate on the valve body and the lower plate on the valve seat, the utility model discloses a diaphragm layer appears outside, is convenient for the staff to observe it and judges the change time of diaphragm layer, and the utility model discloses a diaphragm layer is whole to be held by upper plate and lower plate, and this makes only need to consider the sealed of between valve seat and the lower plate can realize the sealed in the valve seat runner, has reduced the sealed degree of difficulty, has reduced the cost, and has reduced the whole equipment manufacturing cost of the utility model; the thickening strip and the positioning groove are additionally arranged on the diaphragm layer, the thickening strip can increase the fluid pressure endured when the valve body is in a cut-off state, and the positioning groove can facilitate the installation and the positioning of the diaphragm layer; the utility model provides a handle can freely take off, is convenient for maintain the change, and can avoid staff's maloperation.

Description

Manual diaphragm valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a diaphragm valve.

Background

The diaphragm valve is a stop valve which uses a diaphragm as an opening and closing piece to seal a flow passage, cut off fluid and separate an inner cavity of the valve body from an inner cavity of the valve cover, and has the advantages of simple structure, good sealing and corrosion resistance and small fluid resistance.

The diaphragm in the existing manually-controlled diaphragm valve is generally built in, the material state is not easy to observe, and the built-in assembly method increases the requirements on sealing and seepage prevention;

and the diaphragm valve of manual control generally parts are all located the valve seat at present, and the upper end of valve seat only installs the handle, and the built-in assembly method of this kind of part is also inconvenient to maintain the diaphragm valve, has increased the time spent and the cost of maintaining.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a manual formula diaphragm valve for solve the diaphragm valve and be difficult to maintain, and the sealed prevention of seepage shortcoming that the degree of difficulty is big of diaphragm layer.

The utility model provides a following technical scheme: the utility model provides a manual formula diaphragm valve, includes valve body, diaphragm layer and disk seat, the runner that link up about being equipped with in the valve body, still be equipped with the hypoplastron on the side of valve body, still be equipped with in the last side of hypoplastron with the intercommunicating pore of runner intercommunication, be equipped with in the runner and extend to baffle in the through-hole, the disk seat includes upper plate and pedestal, the diaphragm layer quilt the upper plate with the hypoplastron centre gripping, and make the upper plate with contactless between the hypoplastron, the upper plate with pedestal integrated into one piece, still be equipped with the control chamber that link up downwards in the disk seat, the mid portion on diaphragm layer is the deformation portion, the deformation portion can extend to in the control chamber, just be equipped with in the control chamber and press the deformation portion and make its butt in the baffle to cut the control mechanism of runner, because the diaphragm layer is by the centre gripping between disk seat and hypoplastron, this makes and only need consider the sealing between disk seat and the hypoplastron can realize the interior sealing of runner, has reduced the sealed degree of difficulty, and the cost, and has just because the diaphragm layer is whole by carrying out the centre gripping, has bigger contact area between disk seat and the traditional sealing ring, has sealed effectual, and the advantage of simple equipment life-time.

Preferably, be equipped with the thickening strip on the downside of deformation portion when deformation portion is pressed the thickening strip can earlier with the baffle contact, later just be the whole and baffle contact of deformation portion, the setting up of thickening strip has further increased deformation portion when being pressed and the seal strength between the baffle.

Preferably, be equipped with the thickening circle that the several diameter differs in the upside of hypoplastron, the thickening circle is located the outside of through-hole, and major diameter the thickening circle is located the minor diameter the outside of thickening circle, be equipped with a constant head tank in the downside of diaphragm layer, the constant head tank is the circle shape, just the diameter and one of constant head tank thickening circle adaptation, thickening circle can increase the seal strength between diaphragm layer and the hypoplastron, and a thickening circle can be located the constant head tank, and the diaphragm layer of being convenient for fixes a position the installation.

Preferably, control mechanism include with pedestal integrated into one piece's installation pipe, the installation pipe is located the upper end of pedestal, just the installation intraductal link up from top to bottom and with the perforating hole of control chamber intercommunication, sliding connection has about in the control chamber is used for pressing down the diaphragm intraformational the pressing plate of deformation portion, the upper end of pressing the pressing plate is fixed with the external screw thread pole, the external screw thread pole runs through the perforating hole and extend to the upside of installation pipe, rotate on the lateral surface of installation pipe be connected with external screw thread pole threaded connection's swivel sleeve, the lateral surface processing of swivel sleeve has annular outer tooth face, the upside of disk seat still is equipped with the handle, the downside of handle still sets firmly interior tooth cover, interior tooth cover with outer tooth face mutually supports, so that the rotation of handle can drive the swivel sleeve is rotatory, and the staff can drive external screw thread pole and press the board up-and-down motion through driving the handle rotation from so that the swivel sleeve is rotatory, and the pressing plate can make deformation portion take place to the deformation when the circulation or the separation of control runner.

Preferably, the central part of the deformable part in the diaphragm layer is integrally formed with a clamped part with a trapezoidal cross section, an airtight groove for accommodating and installing the clamped part is arranged in the lower side surface of the pressing plate, an air flow channel communicated outwards is arranged in the upper side surface of the airtight groove, and a one-way valve communicated outwards in one way is arranged in the air flow channel.

Preferably, a bushing is arranged between the rotating sleeve and the mounting pipe at an interval, so that abrasion between the rotating sleeve and the mounting pipe is reduced, the service life is prolonged, and the maintenance cost is reduced.

Preferably, an ejector rod is fixedly arranged at the upper end of the external thread rod and abuts against the lower end of the handle, so that the handle can be driven to move up and down by the up-and-down movement of the external thread rod, a worker can judge the deformation amount of the deformation part by judging the up-and-down position of the handle jacked up by the ejector rod, further, the flowing speed of liquid in the flow channel is deduced, the handle can be freely taken down, and misoperation of the worker is avoided.

The utility model provides a manual formula diaphragm valve has following beneficial effect:

the utility model discloses a diaphragm layer is exposed to the outside, is convenient for the staff to observe it and judge the change time of diaphragm layer, and the utility model discloses a diaphragm layer is whole by upper plate and hypoplastron centre gripping, this makes only need to consider the sealing between valve seat and the hypoplastron can realize the sealing in the runner, has reduced the sealed degree of difficulty, has reduced the cost, and has reduced the utility model discloses holistic equipment manufacturing cost;

the thickening strip and the positioning groove are additionally arranged on the diaphragm layer, the thickening strip can increase the fluid pressure endured when the valve body is in a cut-off state, and the positioning groove can facilitate the installation and positioning of the diaphragm layer;

the utility model provides a handle can freely take off, is convenient for maintain the change, and can avoid staff's maloperation.

Drawings

Fig. 1 is an external view of the present invention;

FIG. 2 is a schematic exterior view of the valve body of FIG. 1;

fig. 3 is a schematic front view of the present invention;

FIG. 4 is a plan exploded view of FIG. 3;

FIG. 5 is a schematic view of the valve seat of FIG. 4;

FIG. 6 is a schematic view of the pressing plate of FIG. 4;

FIG. 7 is a schematic view of the structure of the membrane layer of FIG. 4;

fig. 8 is an external view of the separator layer according to the present invention.

In the figure:

11. a valve body; 12. a separator layer; 13. a valve seat; 14. a flow channel; 15. a lower plate; 16. a through hole; 17. an upper plate; 18. a base body; 19. a control chamber; 20. a deformation section; 21. a partition plate; 22. installing a pipe; 23. a pressing plate; 24. an externally threaded rod; 25. a rotating sleeve; 26. an outer tooth surface; 27. a grip; 28. an inner gear sleeve; 29. a clamped portion; 30. an airtight tank; 31. a one-way valve; 32. a bushing; 33. and a push rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-8, according to the embodiment of the manual diaphragm valve of the present invention, including valve body 11, diaphragm layer 12 and valve seat 13, runner 14 that link up about being equipped with in valve body 11, still be equipped with hypoplastron 15 on the side of valve body 11, still be equipped with in the last side of hypoplastron 15 with the intercommunicating pore 16 that runner 14 communicates, be equipped with in the runner 14 and extend to baffle 21 in the through-hole 16, valve seat 13 includes upper plate 17 and pedestal 18, diaphragm layer 12 by upper plate 17 with hypoplastron 15 is held, and makes upper plate 17 with contactless between the hypoplastron 15, upper plate 17 with pedestal 18 integrated into one piece, still be equipped with the control chamber 19 that link up downwards in the valve seat 13, the intermediate portion of diaphragm layer 12 is deformation portion 20, deformation portion 20 can extend to in the control chamber 19, and be equipped with in the control chamber 19 and press deformation portion 20 and make it butt in baffle 21 to cut off the control mechanism of runner 14.

The lower side face of the deformation portion 20 is provided with a thickening strip, and when the deformation portion 20 is pressed, the thickening strip can be in contact with the partition plate 21 firstly.

Be equipped with the thickening circle that two diameters differ in hypoplastron 15's the last side, the thickening circle is located the outside of through-hole 16, and major diameter the thickening circle is located the minor diameter the outside of thickening circle, be equipped with a constant head tank in the downside of diaphragm layer 12, the constant head tank is the circle shape, just the diameter and one of constant head tank thickening circle adaptation.

Control mechanism include with 18 integrated into one piece's of pedestal installation pipe 22, installation pipe 22 is located 18's upper end, just be equipped with in the installation pipe 22 about link up and with the perforating hole of 19 intercommunications in control chamber, sliding connection has about in the control chamber 19 is used for pressing in the diaphragm layer 12 the clamp plate 23 of deformation portion 20, the upper end of clamp plate 23 is fixed with external screw thread pole 24, external screw thread pole 24 runs through the perforating hole and extend to the upside of installation pipe 22, rotate on the lateral surface of installation pipe 22 be connected with external screw thread pole 24 threaded connection's swivel housing 25, the lateral surface of swivel housing 25 is processed there is annular external tooth face 26, the upside of disk seat 13 still is equipped with handle 27, the downside of handle 27 still has set firmly interior tooth cover 28, interior tooth cover 28 with external tooth face 26 mutually supports, so that the rotation of handle 27 can drive swivel housing 25 is rotatory.

The diaphragm layer 12 is provided with a clamping part 29 with a trapezoidal section integrally formed at the center part of the deformation part 20, an airtight groove 30 for accommodating and mounting the clamping part 29 is arranged in the lower side surface of the pressing plate 23, an air flow channel penetrating outwards is arranged in the upper side surface of the airtight groove 30, and a one-way valve 31 circulating outwards in one direction is arranged in the air flow channel.

A bush 32 is arranged between the rotary sleeve 25 and the mounting tube 22.

An ejector rod 33 is fixedly arranged at the upper end of the external thread rod 24, and the ejector rod 33 abuts against the lower end of the handle 27, so that the handle 27 can be driven to move up and down by the up-and-down movement of the external thread rod 24.

The working principle is as follows:

when the grip 27 is at the upper limit and the pressing plate 23 is at the upper limit, the deformation portion 20 protrudes upward, and the liquid can freely flow in the flow path 14.

When the flow channel 14 needs to be blocked, the worker rotates the handle 27, at this time, the handle 27 enables the rotary sleeve 25 to rotate by mutually engaging the outer tooth surface 26 and the inner tooth sleeve 28, at this time, the rotation direction of the rotary sleeve 25 enables the outer threaded rod 24 to move downwards, at this time, the outer threaded rod 24 pushes the pressing plate 23 and enables the deformation portion 20 to deform downwards, when the outer threaded rod 24 moves to the lower limit, the deformation portion 20 can be abutted against the partition plate 21 to block the flow channel 14, in this process, the outer threaded rod 24 and the ejector rod 33 gradually move downwards, the handle 27 supported by the ejector rod 33 also gradually moves downwards, in this process, the worker can judge the opening range of the flow channel 14 by referring to the height of the handle 27, and a part of the handle 27 is always kept engaged with the outer tooth surface 26 in the process of the up-and-down movement of the inner tooth sleeve 28.

The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides a manual formula diaphragm valve, includes valve body (11), diaphragm layer (12) and disk seat (13), be equipped with runner (14) that link up about in valve body (11), its characterized in that: the diaphragm type check valve is characterized in that a lower plate (15) is further arranged on the side face of the valve body (11), a communicating hole (16) communicated with the flow channel (14) is further formed in the upper side face of the lower plate (15), a partition plate (21) extending into the communicating hole (16) is arranged in the flow channel (14), the valve seat (13) comprises an upper plate (17) and a seat body (18), the diaphragm layer (12) is clamped by the upper plate (17) and the lower plate (15), the upper plate (17) and the lower plate (15) are not in contact with each other, the upper plate (17) and the seat body (18) are integrally formed, a control cavity (19) which penetrates downwards is further formed in the valve seat (13), the middle portion of the diaphragm layer (12) is a deformation portion (20), the deformation portion (20) can extend into the control cavity (19), the control cavity (19) is internally provided with a control mechanism which can press the deformation portion (20) and enable the deformation portion to abut against the partition plate (21), and accordingly the flow channel (14) is cut off.

2. The manual diaphragm valve according to claim 1, wherein: be equipped with the thickening strip on the downside of deformation portion (20) when being pressed thickening strip can earlier with baffle (21) contact.

3. The manual diaphragm valve according to claim 1, wherein: be equipped with the thickening circle that the several diameter differs in the upside of hypoplastron (15), the thickening circle is located the outside of through-hole (16), and major diameter the thickening circle is located the minor diameter the outside of thickening circle, be equipped with a constant head tank in the downside of diaphragm layer (12), the constant head tank is the circle shape, just the diameter and one of constant head tank the diameter adaptation of thickening circle.

4. The manual diaphragm valve according to claim 1, wherein: control mechanism include with pedestal (18) integrated into one piece's installation pipe (22), installation pipe (22) are located the upper end of pedestal (18), just be equipped with in installation pipe (22) about link up and with the perforating hole of control chamber (19) intercommunication, sliding connection has about in control chamber (19) is used for pressing according to the clamp plate (23) of deformation portion (20) in diaphragm layer (12), the upper end of clamp plate (23) is fixed with external screw thread pole (24), external screw thread pole (24) run through the perforating hole extends to the upside of installation pipe (22), rotate on the lateral surface of installation pipe (22) be connected with external screw thread pole (24) threaded connection's swivel housing (25), the lateral surface processing of swivel housing (25) has annular external tooth face (26), the upside of disk seat (13) still is equipped with handle (27), the downside of handle (27) still sets firmly interior tooth cover (28), interior tooth cover (28) with outer tooth face (26) mutually support in order to make the handle (27) can rotate the rotatory cover (25) drive.

5. The manual diaphragm valve of claim 4, wherein: the diaphragm layer (12) is internally provided with a clamping part (29) with a trapezoidal section integrally formed at the center part of the deformation part (20), an airtight groove (30) for accommodating and installing the clamping part (29) is arranged in the lower side surface of the pressing plate (23), an air flow channel which is communicated outwards is arranged in the upper side surface of the airtight groove (30), and a one-way valve (31) which is communicated outwards in a one-way is arranged in the air flow channel.

6. The manual diaphragm valve of claim 4, wherein: a bushing (32) is arranged between the rotating sleeve (25) and the mounting pipe (22).

7. The manual diaphragm valve according to claim 4, wherein: an ejector rod (33) is fixedly arranged at the upper end of the external thread rod (24), and the ejector rod (33) abuts against the lower end of the handle (27) so that the handle (27) can be driven to move up and down by the up-and-down movement of the external thread rod (24).