CN219954294U

CN219954294U - Diaphragm valve with lock lining

Info

Publication number: CN219954294U
Application number: CN202321425514.2U
Authority: CN
Inventors: 陈世团; 金定昌; 郑勇飞; 钱茂祥
Original assignee: Zhejiang Olsen Environmental Technology Co ltd
Current assignee: Zhejiang Olsen Environmental Technology Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-11-03
Anticipated expiration: 2033-06-06

Abstract

The utility model discloses a diaphragm valve with a lock lining, which comprises a valve body, wherein a lining is arranged on the wall of an inner cavity of the valve body, the inner cavity of the valve body comprises a medium flow cavity and a diaphragm cavity, a diaphragm and a diaphragm are arranged between the medium flow cavity and the diaphragm cavity, the valve body is also provided with a valve rod, a diaphragm axially fixed with the valve rod is arranged in the diaphragm cavity, the valve body is also provided with a hand wheel which is in threaded fit with the valve rod to drive the valve rod to axially rotate and stretch, the hand wheel is arranged in a rotating way relative to the valve body, and a rotating limiting structure for locking the hand wheel and the valve body to move relatively is also arranged on the hand wheel; the diaphragm valve with the lock lining disclosed by the utility model is based on the fact that the plurality of holes uniformly arranged on the lock disc are matched with the pin shafts and the locks, so that the valve body can be conveniently and rapidly subjected to opening and closing control locking by rotating and limiting, the height can be positioned and adjusted based on the locking matching of the uniformly arranged holes and the hand wheels, and the anti-lost structure is further arranged, so that the hole and slot switching of the rotating and limiting structure is facilitated, and the loss of a locking piece is avoided.

Description

Diaphragm valve with lock lining

Technical Field

The utility model relates to the technical field of lining diaphragm valves, in particular to a diaphragm valve with a lock lining.

Background

Fluorine lined diaphragm valves are a special form of shut-off valve that has emerged in the 20 th century, 20 s. The opening and closing part is a diaphragm made of soft material, which separates the inner cavity of the valve body from the inner cavity of the valve cover and the driving part, so that the valve is called a diaphragm valve. The outstanding feature is that the diaphragm separates the lower valve body cavity from the upper valve cover cavity, so that the valve rod, valve clack and other parts above the diaphragm are not corroded by the medium fluorine-lined diaphragm, the packing sealing structure is omitted, and medium leakage is avoided.

However, when the valve rod drives the valve clack to lift, the existing fluorine-lined diaphragm valve cannot well control the lifting height without the relevant design of opening degree, and only can rely on the feeling of operators, so that the condition that the diaphragm is not moved in place in the opening and closing process to cause the condition of opening and closing or not tight is easily caused, and the opening and closing state is kept more troublesome, and under the condition of larger vibration, the hand wheel and the valve rod are loosened, so that the opening degree is changed, and the integral performance of the fluorine-lined diaphragm valve is reduced.

Disclosure of Invention

In view of the prior art, it is an object of the present utility model to provide a lined diaphragm valve with lock.

The utility model adopts the technical scheme that: the utility model provides a take lock lining diaphragm valve, includes the valve body, be provided with the bush on the valve body inner chamber wall, the valve body inner chamber includes medium flow chamber and diaphragm chamber, be provided with diaphragm and diaphragm between medium flow chamber and the diaphragm chamber, the valve body still is provided with the valve rod, the diaphragm intracavity is provided with the lamella with valve rod axial fixity still be provided with screw-thread fit drive valve rod axial rotation telescopic hand wheel on the valve body, the hand wheel rotates the setting with the valve body relatively, and still is provided with the rotation limit structure that is used for locking hand wheel and valve body relative activity on it.

Further, the rotation limiting structure comprises a lock disc which is fixed relative to the valve body, and a plurality of limiting lock holes are uniformly distributed on the lock disc in circumference.

Furthermore, the lock disc, the valve rod and the hand wheel are all coaxially arranged, and the hand wheel is also provided with a pin hole with the same radius as the distance between the limiting lock hole and the axis.

Further, the rotation limiting structure further comprises a linkage pin and a lock body, wherein the linkage pin penetrates through the limiting lock hole and the pin hole at the same time and limits the axial movement of the linkage pin through the lock body.

Further, still be provided with anti-lost piece on the linkage pin, anti-lost piece activity cup joints on the linkage pin, just be provided with the slider on the anti-lost piece, be provided with the sliding rail groove that is used for the slider gliding on the lock dish, the linkage pin tip sets up anticreep portion, anticreep portion diameter is greater than the hole setting of anti-lost piece.

Further, axial linkage is carried out between the diaphragm valve and the valve rod through the pin shaft with holes, and the diaphragm, the diaphragm and the diaphragm valve are fixed through the threaded linkage lock column.

Further, the valve body is provided with a valve cover, the bushing extends from flange end surfaces at two ends of the valve body to a valve cover mounting surface of the valve body, and the valve cover and the valve body simultaneously clamp the bushing, the diaphragm and the diaphragm for sealing.

The beneficial effects are that: the diaphragm valve with the lock lining disclosed by the utility model is based on the fact that the plurality of holes uniformly arranged on the lock disc are matched with the pin shafts and the locks, so that the valve body can be conveniently and rapidly opened and closed, controlled and locked by rotating and limiting, and the anti-lost structure is arranged, so that the hole and slot switching of the rotating and limiting structure is facilitated, and the loss of a locking piece is avoided.

Drawings

FIG. 1 is a schematic diagram of a diaphragm valve of the present utility model.

Fig. 2 is a schematic top view of a diaphragm valve of the present utility model.

Fig. 3 is a schematic view of a limit lock structure according to the present utility model.

Reference numerals: 1. a valve body; 11. a media flow chamber; 12. a diaphragm chamber; 18. a valve cover; 2. a membrane; 3. a diaphragm; 4. a membrane flap; 41. a pin shaft with holes; 42. a linkage lock column; 5. a hand wheel; 6. a rotation limiting structure; 61. locking a disc; 62. limiting lock holes; 63. a pin hole; 64. a linkage pin; 65. a lock body; 68. an anti-falling part; 81. an anti-lost member; 82. a slide block; 83. a slide rail groove; 9. a bushing; 91. a valve rod.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, the embodiments of the present utility model and the features in the embodiments may be combined with each other without collision.

A lined diaphragm valve with lock as shown in figures 1-3, comprising a valve body 1, characterized in that: be provided with bush 9 on the inner chamber wall of valve body 1, valve body 1 inner chamber includes medium flow chamber 11 and diaphragm chamber 12, be provided with diaphragm 3 and diaphragm 2 between medium flow chamber 11 and the diaphragm chamber 12, valve body 1 still is provided with valve rod 91, be provided with in the diaphragm chamber 12 with valve rod 91 axial fixedmembrane lamella 4 still be provided with screw-thread fit drive valve rod 91 axial rotation telescopic hand wheel 5 on the valve body 1, hand wheel 5 rotates the setting relative valve body 1, and still be provided with on it and be used for locking hand wheel 5 and the relative movable rotation limit structure 6 of valve body 1.

As a further arrangement of the above scheme, the rotation limiting structure 6 includes a lock disc 61 fixed relative to the valve body 1, and a plurality of limiting lock holes 62 are uniformly distributed on the lock disc 61 in circumference.

As a further arrangement of the above scheme, the lock disc 61, the valve rod 91 and the hand wheel 5 are all arranged coaxially, and the hand wheel 5 is further provided with a pin hole 63 with the same radius as that of the limiting lock hole 62 from the axis.

As a further arrangement of the above solution, the rotation limiting structure 6 further includes a linkage pin 64 and a lock body 65, where the linkage pin 64 simultaneously penetrates through the limiting lock hole 62 and the pin hole 63 and limits the axial movement thereof through the lock body 65.

As a further arrangement of the scheme, the linkage pin 64 is further provided with an anti-lost member 81, the anti-lost member 81 is movably sleeved on the linkage pin 64, the anti-lost member 81 is provided with a sliding block 82, the lock disk 61 is provided with a sliding rail groove 83 for sliding the sliding block 82, the end part of the linkage pin 64 is provided with an anti-falling part 68, and the diameter of the anti-falling part 68 is larger than that of an inner hole of the anti-lost member 81.

As a further arrangement of the above scheme, the diaphragm 4 and the valve rod 91 are axially linked by providing a pin shaft 41 with holes, and the diaphragm 3, the diaphragm 2 and the diaphragm 4 are fixed by providing a threaded linkage lock column 42.

As a further arrangement of the above scheme, the valve body 1 is provided with a valve cover 18, the bushing 9 extends from flange end surfaces at two ends of the valve body 1 to a valve cover 18 mounting surface of the valve body 1, and the valve cover 18 and the valve body 1 simultaneously clamp the bushing 9, the diaphragm 3 and the diaphragm 2 for sealing.

In the diaphragm valve of this embodiment as shown in fig. 1-3, the inner cavity of the valve body 1 is provided with the bushing 9, the bushing 9 extends from the end surfaces of the mounting flanges at two ends of the valve body 1 to pass through the medium flow cavity in the valve body 1 until reaching the sealing surface of the valve cover 18, and in the mounting state, the bushing 9 at the flange end surface is clamped and sealed by the valve cover 18 and the valve body 1 together with the diaphragm 3 and the membrane 2, and the bushing 9 at the flange end surface can also be used as a sealing gasket, compared with the prior art, the arrangement can better use the product, the sealing performance is ensured, in this embodiment, a lock disc 61 with circumferentially uniform holes is welded and fixed on the valve body 1 below the hand wheel 5, and limit lock holes 62 circumferentially uniformly opened on the lock disc 61 correspond to pin holes 63 arranged on the hand wheel 5, so that the locking can be realized by a simple design through a linkage pin 64, and when in use, the hand wheel 5 rotates through threaded fit, thereby driving the telescopic driving the valve flap 4 of the valve rod 91, the diaphragm 3 and the membrane 2 to open and close the valve, and then the valve through the linkage pin 64, and the linkage structure can control the flow rate of the three through the linkage structure;

it should be noted that, in the opening degree, i.e. the flow control, the opening degree is controlled by uniformly arranging the limiting lock holes 62 on the circumference and the pin holes 63 on the hand wheel 5, and each limiting lock hole 62 represents a certain opening degree, so that the opening and closing flow passage of the valve can be regulated to a certain degree;

in addition, the rotation limiting structure of the embodiment is further provided with an anti-lost member 81, the anti-lost member 81 is movably sleeved on the linkage pin 64, a sliding block 82 is arranged on the anti-lost member 81, a sliding rail groove 83 for sliding the sliding block 82 is arranged on the lock disc 61, an anti-falling part 68 is arranged at the end part of the linkage pin 64, and the diameter of the anti-falling part 68 is larger than that of an inner hole of the anti-lost member 81; the principle of the anti-lost member 81 is that when the limiting lock hole 62 needs to be switched, only the lock body 65 needs to be removed firstly, the linkage pin 64 naturally falls down after the lock body 65 is removed, and one end of the linkage pin is separated from the lock body 65, the pin hole 63 is separated from the limiting lock hole 62 firstly, but the area and the diameter of the anti-falling portion 68 are smaller than the upper aperture of the anti-lost member 81, so that the linkage pin 64 can be clamped on the anti-lost member 81, at this moment, the hand wheel 5 rotates, the linkage pin 64 is not interfered, after the hand wheel 5 rotates to a required angle, the anti-lost member 81 is synchronously rotated to the limiting lock hole 62 corresponding to the pin hole 63 through the sliding fit of the sliding rail groove 83 and the sliding block 82, and then the linkage pin 64 is pushed upwards, so that the linkage pin 64 passes through the limiting lock hole 62 and the pin hole 63 to be exposed above the hand wheel 5, and the locking state of the lock body 65 is restored.

The structure setting of lining diaphragm valve with lock of this embodiment through the bush can avoid medium and valve body direct contact, special material setting based on the bush adopts, generally more corrosion-resistant macromolecular material than the alloy, this kind of valve design is effectual promotes the life of valve body, based on the characteristic of diaphragm valve, this embodiment has still set up spacing lock structure, can control the aperture of valve, and the cooperation through hole and the lock of even setting has realized the standard regulation to the aperture of opening, the even regulation of aperture of control valve, and obtain the effect of preventing losing and burglary with the locking form of lock body, the illegal operation of non-staff has also been avoided in the setting of lock body.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A lined diaphragm valve with lock, comprising a valve body (1), characterized in that: be provided with bush (9) on valve body (1) inner chamber wall, valve body (1) inner chamber includes medium flow chamber (11) and diaphragm chamber (12), be provided with diaphragm (3) and diaphragm (2) between medium flow chamber (11) and diaphragm chamber (12), valve body (1) still are provided with valve rod (91), be provided with in diaphragm chamber (12) with valve rod (91) axial fixed membrane lamella (4) still be provided with screw-thread fit drive valve rod (91) axial rotation flexible hand wheel (5) on valve body (1), hand wheel (5) rotate setting relative valve body (1), and still be provided with rotation limit structure (6) that are used for locking hand wheel (5) and valve body (1) relative activity on it.

2. A lock lined diaphragm valve according to claim 1, wherein: the rotation limiting structure (6) comprises a lock disc (61) which is relatively fixed with the valve body (1), and a plurality of limiting lock holes (62) are uniformly distributed on the lock disc (61) in a circumference.

3. A lock lined diaphragm valve according to claim 2, wherein: the lock disc (61), the valve rod (91) and the hand wheel (5) are all coaxially arranged, and the hand wheel (5) is also provided with a pin hole (63) with the same radius as the limiting lock hole (62) from the axis.

4. A lock lined diaphragm valve according to claim 3, wherein: the rotation limiting structure (6) further comprises a linkage pin (64) and a lock body (65), and the linkage pin (64) penetrates through the limiting lock hole (62) and the pin hole (63) and limits the axial movement of the lock body through the lock body (65).

5. A lock lined diaphragm valve according to claim 4, wherein: the anti-lost part is characterized in that an anti-lost part (81) is further arranged on the linkage pin (64), the anti-lost part (81) is movably sleeved on the linkage pin (64), a sliding block (82) is arranged on the anti-lost part (81), a sliding rail groove (83) used for sliding the sliding block (82) is formed in the lock disc (61), an anti-falling part (68) is arranged at the end part of the linkage pin (64), and the diameter of the anti-falling part (68) is larger than that of an inner hole of the anti-lost part (81).

6. A lock lined diaphragm valve according to claim 1, wherein: the diaphragm (4) and the valve rod (91) are axially linked through a pin shaft (41) with holes, and the diaphragm (3), the diaphragm (2) and the diaphragm (4) are fixed through a threaded linkage lock column (42).

7. A lock lined diaphragm valve according to claim 1, wherein: the valve body (1) is provided with a valve cover (18), the bushing (9) extends to a valve cover (18) mounting surface of the valve body (1) from flange end surfaces at two ends of the valve body (1), and the valve cover (18) and the valve body (1) simultaneously clamp the bushing (9), the diaphragm (3) and the diaphragm (2) to seal.