CN217234485U

CN217234485U - Diaphragm valve with double valve weirs and diaphragm valve assembly comprising diaphragm valve

Info

Publication number: CN217234485U
Application number: CN202123426111.3U
Authority: CN
Inventors: 陈武
Original assignee: Hubei Hi Tech Machinery Manufacturing Co ltd
Current assignee: Hubei Hi Tech Machinery Manufacturing Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-19
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a bivalve weir diaphragm valve and contain its diaphragm valve subassembly, include: valve body, diaphragm, elastic rubber, closed plectane, threaded rod and prevent mistake and touch the mechanism, the valve body top is fixed with the valve gap, threaded hole has been seted up at the valve gap middle part, the diaphragm is installed between valve body and valve gap, elastic rubber installs between diaphragm and valve gap, closed plectane sliding connection is at the valve gap inner wall, threaded rod threaded connection is at threaded hole inner wall, and threaded rod bottom and closed plectane rotate to be connected, prevent mistake and touch the mechanism and install at the threaded rod top, prevent mistake and touch the mechanism and include change, first spacing tooth, knob, driving cylinder, the spacing tooth of second and spring, the threaded rod upper end is fixed with the change, and change and valve gap rotation are connected. The utility model discloses make also can't drive the diaphragm and open and shut after people touch the knob carelessly, play the effect of preventing the mistake and touching to set up the pointer on the change, the cooperation scale makes things convenient for the audio-visual state that opens and shuts of observing of people.

Description

Diaphragm valve with double valve weirs and diaphragm valve assembly comprising diaphragm valve

Technical Field

The utility model relates to a diaphragm valve technical field especially relates to a diaphragm valve subassembly of bivalve weir diaphragm valve and contain it.

Background

The diaphragm valve is a cut-off valve which uses an elastic diaphragm as a starting and closing piece and a sealing piece, in the existing diaphragm valve, the diaphragm is mostly opened and closed in a screw screwing mode, and when people touch a knob carelessly, the diaphragm valve is very easy to open abnormally, touch by mistake and is not easy to find.

Therefore, there is a need to provide a dual-weir diaphragm valve and a diaphragm valve assembly comprising the same to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a diaphragm valve assembly of bivalve weir diaphragm valve and contain it.

The utility model provides a pair of bivalve weir diaphragm valve, include: valve body, diaphragm, elastic rubber, closed plectane, threaded rod and prevent mistake and touch the mechanism, the valve body top is fixed with the valve gap, threaded hole is seted up at the valve gap middle part, the diaphragm is installed between valve body and valve gap, elastic rubber installs between diaphragm and valve gap, closed plectane sliding connection is at the valve gap inner wall, threaded rod threaded connection is at threaded hole inner wall, and threaded rod bottom and closed plectane rotate to be connected, prevent mistake and touch the mechanism and install at the threaded rod top.

Preferably, it includes change, first spacing tooth, knob, driving cylinder, the spacing tooth of second and spring to prevent mistake to touch the mechanism, the threaded rod upper end is fixed with the change, and change and valve gap rotation are connected, change outside equidistance is fixed with first spacing tooth, the change upper end is equipped with the knob, knob inner wall middle part is fixed with the driving cylinder, driving cylinder inner wall equidistance is fixed with the spacing tooth of second, and just first spacing tooth and the spacing tooth of second slip grafting, the driving cylinder inner wall is fixed with the spring, and spring and change top fixed connection.

Preferably, a slide bar is fixed in the middle of the inner wall of the driving cylinder, a first limiting block is fixed at the bottom of the slide bar, a slide groove is formed in the top of the threaded rod and is in sliding connection with the slide groove, a first limiting groove is formed in the inner wall of the slide groove, and the first limiting block is in sliding connection with the first limiting groove.

Preferably, a pointer is fixed at the lower end of the outer side of the rotating ring, and scales are arranged on the outer side of the valve cover.

Preferably, the top of the knob is provided with a direction indicator.

Preferably, the outer side of the knob is provided with an anti-skid protrusion.

Preferably, the end part of the first limit tooth is provided with a chamfer.

Preferably, the outer sides of the closed circular plates are symmetrically fixed with second limiting blocks, the inner wall of the valve cover is symmetrically provided with second limiting grooves, and the second limiting blocks are connected with the second limiting grooves in a sliding mode.

The invention also includes a diaphragm valve assembly comprising a dual weir diaphragm valve.

Compared with the prior art, the utility model provides a double-valve weir diaphragm valve and contain its diaphragm valve subassembly has following beneficial effect:

the utility model provides a bivalve weir diaphragm valve and contain its diaphragm valve subassembly:

1. when in use, people can press the knob downwards to drive the driving cylinder to slide downwards, so that the second limit tooth in the driving cylinder is clamped with the first limit tooth, and at the moment, people rotate the knob to drive the rotating ring to rotate, thereby driving the threaded rod to rotate, enabling the threaded rod to move up and down on the inner wall of the valve cover, further driving the closed circular plate to slide up and down, enabling the closed circular plate to extrude the elastic rubber to deform, extruding the diaphragm to open and close the valve body, then, people loosen the knob to enable the knob to slide upwards under the elastic force of the spring, so that the second limiting tooth is separated from the first limiting tooth, and people can not drive the rotating ring to rotate by rotating the knob, so that people can not drive the diaphragm to open and close even if the people touch the knob carelessly, the function of preventing mistaken touch is achieved, and set up the pointer on the swivel, cooperate with the scale, make things convenient for people's audio-visual observation state of opening and shutting.

Drawings

Fig. 1 is a schematic overall sectional structure diagram provided by the present invention;

fig. 2 is a schematic view of the overall structure provided by the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

fig. 4 is a schematic view of the valve cover structure provided by the present invention;

fig. 5 is a schematic view of a threaded rod structure provided by the present invention;

fig. 6 is a schematic view of a threaded hole structure provided by the present invention;

fig. 7 is a schematic view of the knob structure provided by the present invention;

fig. 8 is a schematic view of a second limiting groove structure provided by the present invention.

Reference numbers in the figures: 1. a valve body; 2. a valve cover; 3. a threaded hole; 4. a diaphragm; 5. an elastic rubber; 6. closing the circular plate; 7. a threaded rod; 8. a false touch prevention mechanism; 81. rotating the ring; 82. a first limit tooth; 83. a knob; 84. a drive cylinder; 85. a second limit tooth; 86. a spring; 9. a slide bar; 10. a first stopper; 11. A chute; 12. a first limit groove; 13. a pointer; 14. direction indication; 15. anti-skid projections; 16. a second limiting block; 17. a second limit groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

In a specific implementation, as shown in fig. 1, 2, 3, 5, 6 and 8, a dual-valve weir diaphragm valve comprises: valve body 1, diaphragm 4, elastic rubber 5, closed plectane 6, threaded rod 7 and prevent mistake and

touch mechanism

8, 1 top of valve body is fixed with valve gap 2, threaded hole 3 is seted up at valve gap 2 middle part, diaphragm 4 is installed between valve body 1 and valve gap 2, elastic rubber 5 installs between diaphragm 4 and valve gap 2, closed plectane 6 sliding connection is at the valve gap 2 inner wall, 6 outside symmetries of closed plectane are fixed with second stopper 16, second spacing groove 17 has been seted up to 2 inner wall symmetries of valve gap, and

second stopper

16 and 17 sliding connection of second spacing groove, 7 threaded connection of threaded rod is at 3 inner walls in the screw hole, and threaded rod 7 bottom and closed plectane 6 rotate to be connected, prevent mistake and touch mechanism 8 and install at threaded rod 7 tops.

Referring to fig. 2, fig. 3, fig. 4 and fig. 7, the mis-touch prevention mechanism 8 comprises a rotary ring 81, a first limit tooth 82, a rotary knob 83, a driving cylinder 84, a second limit tooth 85 and a spring 86, the upper end of the threaded rod 7 is fixed with the rotary ring 81, the rotary ring 81 is connected with the valve cover 2 in a rotating manner, the first limit tooth 82 is fixed on the outer side of the rotary ring 81 at an equal distance, the end part of the first limit tooth 82 is provided with a chamfer, the upper end of the rotary ring 81 is provided with the rotary knob 83, the top of the rotary knob 83 is provided with a direction indicator 14 to distinguish the switch direction conveniently, an anti-skid projection 15 is arranged on the outer side of the rotary knob 83 to increase friction force and prevent hand sliding, the driving cylinder 84 is fixed at the middle part of the inner wall of the rotary knob 83, the inner wall of the driving cylinder 84 is fixed at an equal distance with the second limit tooth 85, the first limit tooth 82 is inserted with the second limit tooth 85 in a sliding manner, the inner wall of the driving cylinder 84 is fixed with the spring 86, and the spring 86 is fixedly connected with the top of the rotary ring 81, when the valve is used, people press the knob 83 downwards, and then the driving cylinder 84 can be driven to slide downwards, so that the second limiting teeth 85 in the driving cylinder 84 are connected with the first limiting teeth 82 in a clamping mode, at the moment, people rotate the knob 83 to drive the rotating ring 81 to rotate, and further the threaded rod 7 can be driven to rotate, so that the threaded rod 7 moves up and down on the inner wall of the valve cover 2, and further the sealed circular plate 6 can be driven to slide up and down, the sealed circular plate 6 extrudes the elastic rubber 5 to deform, and the membrane 4 is extruded to open and close in the valve body 1, then people loosen the knob 83, so that the knob 83 slides up under the elastic force of the spring 86, so that the second limiting teeth 85 are separated from the first limiting teeth 82, at the moment, people rotate the knob 83 and cannot drive the rotating ring 81 to rotate, so that people cannot drive the membrane 4 to open and close after the knob 83 carelessly touching the knob 83, and the function of preventing mistaken touch is achieved.

Referring to fig. 3 and 7, a slide bar 9 is fixed in the middle of the inner wall of the driving cylinder 84, a first limit block 10 is fixed at the bottom of the slide bar 9, a sliding groove 11 is formed in the top of the threaded rod 7, the slide bar 9 is in sliding connection with the sliding groove 11, a first limit groove 12 is formed in the inner wall of the sliding groove 11, the first limit block 10 is in sliding connection with the first limit groove 12, the knob 83 is limited conveniently, and the knob is prevented from falling off.

Referring to fig. 4, a pointer 13 is fixed at the lower end of the outer side of the rotary ring 81, and scales are arranged on the outer side of the valve cover 2, so that people can visually observe the opening and closing state conveniently.

The working principle is as follows:

when the valve is used, a user presses the knob 83 downwards to drive the driving cylinder 84 to slide downwards, so that the second limiting teeth 85 in the driving cylinder 84 are connected with the first limiting teeth 82 in a clamping manner, at the moment, the user rotates the knob 83 to drive the rotating ring 81 to rotate, and further drives the threaded rod 7 to rotate, so that the threaded rod 7 moves up and down on the inner wall of the valve cover 2, and further drives the closed circular plate 6 to slide up and down, so that the closed circular plate 6 extrudes the elastic rubber 5 to deform and extrudes the diaphragm 4 to open and close the valve body 1, then, the user releases the knob 83 to enable the knob 83 to slide up under the elastic force of the spring 86, so that the second limiting teeth 85 are separated from the first limiting teeth 82, at the moment, the user rotates the knob 83 to be incapable of driving the rotating ring 81 to rotate, so that the user cannot drive the diaphragm 4 to open and close after the knob 83 carelessly touches the knob, and the function of preventing accidental touch is achieved, and the pointer 13 is arranged on the rotating ring 81, and the scales are matched, so that people can visually observe the opening and closing states conveniently.

The utility model discloses circuit and control that relate to are prior art, do not carry out too much repetition here.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A dual weir diaphragm valve comprising:

the valve comprises a valve body (1), wherein a valve cover (2) is fixed at the top of the valve body (1), and a threaded hole (3) is formed in the middle of the valve cover (2);

the diaphragm (4), the said diaphragm (4) is installed between valve block (1) and valve bonnet (2);

the elastic rubber (5), the elastic rubber (5) is installed between the diaphragm (4) and the valve cover (2);

the sealing circular plate (6), the sealing circular plate (6) is connected to the inner wall of the valve cover (2) in a sliding manner;

the threaded rod (7) is in threaded connection with the inner wall of the threaded hole (3), and the bottom of the threaded rod (7) is rotationally connected with the closed circular plate (6);

prevent mistake and touch mechanism (8), prevent mistake and touch mechanism (8) and install at threaded rod (7) top.

2. The double-valve weir diaphragm valve of claim 1, wherein the false touch prevention mechanism (8) comprises a rotary ring (81), a first limit tooth (82), a knob (83), a driving cylinder (84), a second limit tooth (85) and a spring (86), the rotary ring (81) is fixed at the upper end of the threaded rod (7), and the rotating ring (81) is rotationally connected with the valve cover (2), first limit teeth (82) are fixed on the outer side of the rotating ring (81) at equal intervals, a knob (83) is arranged at the upper end of the rotating ring (81), a driving cylinder (84) is fixed in the middle of the inner wall of the knob (83), second limiting teeth (85) are fixed on the inner wall of the driving cylinder (84) at equal intervals, and the first limit tooth (82) and the second limit tooth (85) are inserted in a sliding manner, a spring (86) is fixed on the inner wall of the driving cylinder (84), and the spring (86) is fixedly connected with the top of the rotating ring (81).

3. The double-valve weir diaphragm valve according to claim 2, wherein a sliding rod (9) is fixed in the middle of the inner wall of the driving cylinder (84), a first limit block (10) is fixed at the bottom of the sliding rod (9), a sliding groove (11) is formed at the top of the threaded rod (7), the sliding rod (9) is slidably connected with the sliding groove (11), a first limit groove (12) is formed in the inner wall of the sliding groove (11), and the first limit block (10) is slidably connected with the first limit groove (12).

4. The double-valve weir diaphragm valve of claim 2, wherein the outer lower end of the swivel (81) is fixed with a pointer (13), and the outer side of the valve cover (2) is provided with a scale.

5. The dual-valve weir diaphragm valve of claim 2, wherein the knob (83) is topped with a directional indicator (14).

6. The double-valved weir diaphragm valve of claim 2, wherein the knob (83) is externally provided with a non-slip bead (15).

7. The dual-valve weir diaphragm valve of claim 2, wherein the first spacing tooth (82) is chamfered at its end.

8. The double-valve weir diaphragm valve of claim 1, wherein the outer side of the closed circular plate (6) is symmetrically fixed with second limit blocks (16), the inner wall of the valve cover (2) is symmetrically provided with second limit grooves (17), and the second limit blocks (16) are slidably connected with the second limit grooves (17).

9. A diaphragm valve assembly comprising a dual-weir diaphragm valve according to any of claims 1 to 8.