CN219774314U - Diaphragm of diaphragm pump - Google Patents

Abstract

The utility model provides a diaphragm of a diaphragm pump, which relates to the technical field of diaphragms of diaphragm pumps and comprises the following components: the diaphragm, one side fixedly connected with go-between of diaphragm, one side fixedly connected with fixed square of go-between, one side sliding connection of fixed square has the optical axis, one side fixedly connected with connecting rod of optical axis, the connecting rod is kept away from square notch has been seted up to one side of fixed square, square notch's inner wall sliding connection has the pivot, the both sides fixedly connected with concave piece of pivot, the bottom fixedly connected with support column of concave piece. According to the utility model, the diaphragm can be limited in the expansion and contraction range under the environment without strong corrosiveness or high temperature and low temperature, the expansion and contraction exceeding range is avoided, the damage of the diaphragm is enlarged, the service life is reduced, the expansion and contraction of the diaphragm can be limited by the square notch and the length range of the connecting rod through the connecting rod, the service life of the diaphragm is prolonged, and the loss of the diaphragm is reduced.

Description

Diaphragm of diaphragm pump

Technical Field

The utility model relates to the technical field of diaphragms of diaphragm pumps, in particular to a diaphragm of a diaphragm pump.

Background

Diaphragm pumps, also known as control pumps, are a major type of actuator that is operated by power to vary the flow of fluid by receiving a control signal from a regulating control unit. Diaphragm pumps rely primarily on the back and forth movement of a diaphragm to change the working chamber volume to draw in and expel fluid, and therefore the role of the diaphragm in a diaphragm pump is important.

In order to promote the flexibility of diaphragm to reduce the diaphragm damage degree, current chinese patent publication No. CN207297294U discloses a diaphragm for diaphragm pump, including the diaphragm body, have on the diaphragm body along a plurality of mounting holes of even interval arrangement in circumference of diaphragm body, just have on the diaphragm body adjacent a plurality of the ring channel that the mounting hole is inboard and the opening is ascending, the cross-section of ring channel constructs into trapezium, trapezoidal topside is longer than the base, and this diaphragm pump is reciprocal cyclic motion, and in the motion process, the diaphragm is alternately two-way continuously tensile, and then diaphragm fatigue life becomes diaphragm key factor.

The prior art solutions described above have the following drawbacks: the diaphragm cannot control the expansion and contraction force, is easy to break under the condition of long-time use, and has weak impact strength.

Disclosure of Invention

The utility model aims to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a diaphragm of diaphragm pump, includes the diaphragm, one side fixedly connected with go-between of diaphragm, one side fixedly connected with fixed square of go-between, one side sliding connection of fixed square has the optical axis, one side fixedly connected with connecting rod of optical axis, the connecting rod is kept away from square notch has been seted up to one side of fixed square.

As a preferred implementation mode, the inner wall sliding connection of square notch has the pivot, the both sides fixedly connected with spill piece of pivot, the bottom fixedly connected with support column of spill piece.

The technical effect of adopting the further scheme is as follows: when the support column receives the regular direction of motion that outwards want to remove of pneumatic valve device, when the diaphragm outwards is relaxed the device and reaches the summit, one side that the connecting rod of solid fixed ring one side has square notch is the arc outwards removes, the pivot is driven outwards to remove by the support column, and through the slip at square notch inner wall, let the connecting rod outwards remove, the pivot reaches square notch left side end and is being formed the joint state with the support column promptly, unable the outwards diastole of continuation, when inwards shrink, the support column inwards removes, the pivot moves right side one end at square notch inner wall, then be with support column joint state, unable the continuation shrink, just so can restrict the scope of diaphragm diastole shrink, extension diaphragm life, because diaphragm impact strength is very poor, the connecting rod plays the effect of protection diaphragm, prevent to receive external factor's striking impaired.

As a preferred implementation mode, a circular notch is formed in the center of the diaphragm, the center of the diaphragm is slidably connected to one side of a support column, an air valve device is fixedly connected to one side of the support column away from the diaphragm, and a support ring is fixedly connected to one side of the support column.

The technical effect of adopting the further scheme is as follows: when the air valve device moves the support column outwards, a support ring is fixed on the support column between the air valve device and the diaphragm in order to better relax the area of the diaphragm and increase the pressure.

As a preferred embodiment, the side of the diaphragm remote from the air valve device is made of nitrile rubber.

The technical effect of adopting the further scheme is as follows: the nitrile rubber material is best for delivering non-corrosive slurries with high specific gravity and high consistency.

As a preferred embodiment, the side of the membrane close to the supporting ring is made of neoprene.

The technical effect of adopting the further scheme is as follows: the neoprene material has good flexibility, economy and durability.

Compared with the prior art, the utility model has the advantages and positive effects that,

according to the utility model, the diaphragm can be limited in the expansion and contraction range under the environment without strong corrosiveness or high temperature and low temperature, the expansion and contraction range exceeding range is avoided, the damage of the diaphragm is increased, the service life is reduced, and the diaphragm can be protected by the device because the impact strength of the diaphragm is very poor, the diaphragm is prevented from being damaged due to external factors, the expansion and contraction of the diaphragm can be limited by the square notch and the length range of the connecting rod through the connecting rod, the service life of the diaphragm is prolonged, and the loss of the diaphragm is reduced.

Drawings

Fig. 1 is a schematic perspective view of the appearance of a diaphragm pump according to the present utility model.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic view of a rear side three-dimensional structure of a diaphragm pump according to the present utility model.

Fig. 4 is an internal structure of the diaphragm.

Legend description:

1. a membrane; 2. a fixing ring; 3. fixing the square blocks; 4. an optical axis; 5. a connecting rod; 6. square notch; 7. a support column; 8. a concave block; 9. a rotating shaft; 10. a support ring; 11. an air valve device; 12. nitrile rubber material; 13. neoprene material.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a diaphragm of a diaphragm pump, comprising: the diaphragm 1, one side fixedly connected with go-between 2 of diaphragm 1, one side fixedly connected with fixed square 3 of go-between 2, one side sliding connection of fixed square 3 has optical axis 4, one side fixedly connected with connecting rod 5 of optical axis 4, square notch 6 has been seted up to one side that fixed square 3 was kept away from to connecting rod 5.

As shown in fig. 1-4, the inner wall of the square notch 6 is slidably connected with a rotating shaft 9, two sides of the rotating shaft 9 are fixedly connected with concave blocks 8, the bottoms of the concave blocks 8 are fixedly connected with support columns 7, when the support columns 7 are subjected to the regular inward movement direction of the air valve device 11, and when the diaphragm 1 is outwards relaxed to reach the top point, one side of the connecting rod 5 on one side of the fixed ring 2, which is provided with the square notch 6, is arc-shaped and outwards moved, the rotating shaft 9 is driven by the support columns 7 to outwards move, and by sliding on the inner wall of the square notch 6, the connecting rod 5 is outwards moved, the rotating shaft 9 reaches one side end of the left side of the square notch 6 to form a clamping state with the support columns 7, so that the diaphragm 7 can not be outwards relaxed continuously, when inwards contracted inwards, the rotating shaft 9 moves to the right side end of the inner wall of the square notch 6, and then is in a clamping state with the support columns 7, so that the diaphragm 1 can be limited in the contraction range, the service life of the diaphragm 1 is prolonged, and the connecting rod 5 plays a role in protecting 1, so that the diaphragm 1 is prevented from being impacted by external factors.

As shown in fig. 1-4, a circular notch is formed in the center of the diaphragm 1, the center of the diaphragm 1 is slidably connected to one side of the support column 7, one side of the support column 7 away from the diaphragm 1 is fixedly connected with a gas valve device 11, one side of the support column 7 is fixedly connected with a support ring 10, and when the gas valve device 11 makes the support column 7 move outwards, in order to better relax the area of the diaphragm 1 and increase the pressure, a support ring 10 is fixed on the support column 7 between the gas valve device 11 and the diaphragm 1.

As shown in fig. 1-4, the side of the diaphragm 1 remote from the valve means 11 is made of a nitrile rubber material 12, the nitrile rubber material 12 being most effective in delivering a non-corrosive slurry of high specific gravity and high consistency.

As shown in fig. 1 to 4, the side of the membrane 1 close to the support ring 10 is made of neoprene 13, and the neoprene 13 has good flexibility, economy and durability.

Working principle: when the air valve device 11 makes the support column 7 outwards move, in order to better relax the area increase pressure of the diaphragm 1, simultaneously the rotating shaft 9 is driven by the support column 7 to outwards move, and through the sliding of the inner wall of the square notch 6, the connecting rod 5 outwards moves, then a clamping state is formed between the connecting rod 5 and the support column 7, the outwards relaxation cannot be continued, when the air valve device inwards contracts, the support column 7 inwards moves, the rotating shaft 9 moves to one end on the right side on the inner wall of the square notch 6, and then the clamping state with the support column 7 cannot be continued to contract.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (6)

1. A diaphragm for a diaphragm pump, comprising: diaphragm (1), one side fixedly connected with go-between (2) of diaphragm (1), one side fixedly connected with fixed square (3) of go-between (2), one side sliding connection of fixed square (3) has optical axis (4), one side fixedly connected with connecting rod (5) of optical axis (4), connecting rod (5) are kept away from square notch (6) have been seted up in one side of fixed square (3).

2. A diaphragm for a diaphragm pump according to claim 1, wherein: the inner wall sliding connection of square notch (6) has pivot (9), the both sides fixedly connected with spill piece (8) of pivot (9), the bottom fixedly connected with support column (7) of spill piece (8).

3. A diaphragm for a diaphragm pump according to claim 1, wherein: the center of the diaphragm (1) is provided with a circular notch, and the center of the diaphragm (1) is connected to one side of the support column (7) in a sliding manner.

4. A diaphragm for a diaphragm pump according to claim 3, wherein: one side of the support column (7) far away from the membrane (1) is fixedly connected with an air valve device (11), and one side of the support column (7) is fixedly connected with a support ring (10).

5. A diaphragm for a diaphragm pump according to claim 4, wherein: one side of the diaphragm (1) far away from the air valve device (11) is made of nitrile rubber material (12).

6. A diaphragm for a diaphragm pump according to claim 5, wherein: one side of the membrane (1) close to the supporting ring (10) is made of neoprene materials (13).