CN213271159U

CN213271159U - Diaphragm buffering formula rubber lamella check valve

Info

Publication number: CN213271159U
Application number: CN202022259479.4U
Authority: CN
Inventors: 洪冰冰; 洪祺开; 洪敏志
Original assignee: BEIJING GUANLONG VALVE FACTOR
Current assignee: BEIJING GUANLONG VALVE FACTOR
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-05-25
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses a diaphragm buffering formula rubber lamella check valve, including left valve body, the positive right side fixed welding of left valve body has right valve body, and left valve body and the positive top central point of right valve body put the welding and have a mounting, and water feeding mouth and outlet have been seted up at left valve body and the positive both ends of right valve body, and left valve body and the positive inboard of right valve body are equipped with the main valve body, and the positive inboard top fixed mounting of main valve body has the valve gap, and the positive upper end left side fixed mounting of valve gap has the pivot, and the positive swing joint of pivot has the steel bar, and the positive right side bottom fixedly connected. This diaphragm buffering formula rubber lamella check valve through the right valve body of the positive right side fixed weld of left valve body, and the right valve body diameter size of the positive right side fixed weld of left valve body is less than the diameter size of left valve body, can be when this diaphragm buffering formula rubber lamella check valve moves, the different effect of water pressure appears, after the water supply inlet intake, under rivers and hydraulic effect, makes the rubber lamella open, gets into water drainage mouth department, and is simple and convenient.

Description

Diaphragm buffering formula rubber lamella check valve

Technical Field

The utility model relates to a rubber lamella check valve technical field specifically is a diaphragm buffering formula rubber lamella check valve.

Background

The rubber flap in the valve is made of steel plate, steel bar and reinforced nylon cloth as substrate, and the outer layer is covered with rubber, so that the service life of the flap can reach 100 ten thousand times. The H44X (SFCV) series rubber flap check valve adopts the full flow area design, and has the characteristics of small head loss, difficult accumulation of sundries, simple and convenient maintenance and the like. The H44X (SFCV) series rubber flap check valve is mainly suitable for horizontally mounted water supply and drainage systems and can be mounted at the water outlet of a water pump to prevent backflow and damage of a water hammer to the pump. An H44X (SFCV) series rubber flap check valve may also be installed on the bypass line of the inlet and outlet pipes of the reservoir to prevent backflow of the pond water into the watering system. The check valve is generally suitable for cleaning media, but is not suitable for media containing solid particles and with higher viscosity.

In a water supply system, a check valve is a necessary option for preventing water backflow after a pump is stopped, wherein a rubber flap check valve is a product with a wide application range in a water supply and drainage system, most traditional rubber flap check valves are only provided with 3 valve element (valve body, valve cover and valve flap) groups in a simple mode, and the valve element is closed in a one-step mode. Therefore, a rubber flap check valve with an oil pressure buffer cylinder and two closed ends (namely, closing quickly and closing slowly) appears in the market of middle and large-size products later, so that water hammer during closing is eliminated. Although the product achieves the aim of preventing the water hammer, the oil cylinder and the energy storage tank are used, so that daily maintenance is carried out to prevent oil leakage and air leakage, the manufacturing cost is high, and the conditions of incapability of closing and a large amount of water leakage can be generated in a low-pressure state.

The phenomenon of water refluence or flow measurement generally can appear in current rubber lamella check valve, produces the harm to rubber lamella check valve, and rubber lamella is after the use number of times is too much, and easy self appears damaging, leads to the problem that life reduces.

Disclosure of Invention

An object of the utility model is to provide a diaphragm buffering formula rubber lamella check valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a diaphragm buffering formula rubber lamella check valve, includes left valve body, the positive right side fixed welding of left side valve body has right valve body, left side valve body and the positive top central point of right valve body put fixed welding have a mounting, the positive top both sides fixedly connected with fixing bolt of mounting, water feeding mouth and outlet have been seted up to left side valve body and the positive both ends of right valve body, left side valve body and the positive inboard main valve body that is equipped with of right valve body, the positive inboard top fixed mounting of main valve body has the valve gap, the positive upper end left side fixed mounting of valve gap has the pivot, the positive swing joint of pivot has the rod iron, the positive right side bottom fixedly connected with rubber lamella of rod, water feeding mouth and outlet have openly seted.

Preferably, the right valve body fixedly welded on the right side of the front surface of the left valve body is smaller than the left valve body in diameter size and is fixedly welded and communicated with one end of the inner side of the water supply port and the water discharge port.

Preferably, the fixing bolts fixedly connected with the two sides of the front top end of the fixing piece penetrate through the inner walls of the front top ends of the left valve body and the right valve body, the number of the fixing bolts is four, and the fixing bolts are symmetrically distributed on the two sides of the front top end of the fixing piece.

Preferably, the water feeding port and the water discharging port which are arranged at the two ends of the front surfaces of the left valve body and the right valve body are cylindrical, and the diameters of the left valve body and the right valve body are consistent.

Preferably, the steel bar movably connected with the front surface of the rotating shaft is in a cuboid shape, and the bottom end of the steel bar is attached to the inner side of the bottom end of the main valve body.

Preferably, the rubber material is coated on the surface of the rubber flap fixedly connected with the bottom end of the right side of the front surface of the steel bar.

Preferably, the water supply opening and the water outlet are provided with a plurality of through holes at the periphery of the front surface, the diameter sizes of the through holes are consistent, and the through holes are symmetrically distributed at the periphery of the front surfaces of the water supply opening and the water outlet.

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

(1) this diaphragm buffering formula rubber lamella check valve through the right valve body of the positive right side fixed weld of left valve body, and the right valve body diameter size of the positive right side fixed weld of left valve body is less than the diameter size of left valve body, can be when this diaphragm buffering formula rubber lamella check valve moves, the different effect of water pressure appears, after the water supply opening is intake, under rivers and hydraulic effect, makes the rubber lamella open, gets into drain outlet department with water, and is simple and convenient.

(2) This diaphragm buffering formula rubber lamella check valve, through valve gap front upper end left side fixed mounting's pivot, and pivot and rubber lamella rotate to be connected, and the surface is covered with the rubber material, effectively makes rubber lamella life-span extension, reduces the cost of maintenance and maintenance.

Drawings

FIG. 1 is a schematic view of the overall structure of the front side of the present invention;

FIG. 2 is a schematic view of the inner side of the vacuum chamber of the present invention;

fig. 3 is the left valve body structure schematic diagram of looking sideways at the utility model.

In the figure: 1 left valve body, 2 right valve body, 3 fixed parts, 4 fixed bolts, 5 water feeding ports, 6 water discharging ports, 7 steel bars, 8 valve covers, 9 rotating shafts, 10 rubber flaps, 11 main valve bodies and 12 through holes.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a diaphragm buffer type rubber flap check valve comprises a left valve body 1, a right valve body 2 is fixedly welded on the right side of the front of the left valve body 1, the diameter size of the right valve body 2 fixedly welded on the right side of the front of the left valve body 1 is smaller than that of the left valve body 1, and is fixedly welded and communicated with one end of the inner side of a water supply port 5 and a water outlet 6, a fixing part 3 is fixedly welded at the central position of the top end of the front of the left valve body 1 and the right valve body 2, fixing bolts 4 are fixedly connected with the two sides of the front of the fixing part 3 and penetrate through the inner wall of the top end of the front of the left valve body 1 and the inner wall of the front of the right valve body 2, the four fixing bolts are symmetrically distributed on the two sides of the front of the fixing part 3, the two ends of the front of the left valve body 1 and, the diameter sizes of the left valve body 1 and the right valve body 2 are consistent, the main valve body 11 is arranged on the inner sides of the front surfaces of the left valve body 1 and the right valve body 2, the valve cover 8 is fixedly arranged at the top end of the inner side of the front surface of the main valve body 11, the rotating shaft 9 is fixedly arranged at the left side of the upper end of the front surface of the valve cover 8, the rotating shaft 9 is rotatably connected with the rubber flap 10 through the rotating shaft 9 fixedly arranged at the left side of the upper end of the front surface of the valve cover 8, the service life of the rubber flap 10 is effectively prolonged, the maintenance cost is reduced, the front surface of the rotating shaft 9 is movably connected with a steel bar 7, the steel bar 7 movably connected with the front surface of the rotating shaft 9 is in a cuboid shape, the bottom end of the steel bar 7 is attached to the inner side of the bottom end of the main valve body 11, the rubber flap 10 is fixedly connected with the bottom end of the front surface of the steel bar 7, and the diameter size of through-hole 12 is unanimous, the symmetric distribution is around water feeding mouth 5 and outlet 6 are positive, through the right valve body 2 of the positive right side fixed weld of left valve body 1, and the right valve body 2 diameter size of the positive right side fixed weld of left valve body 1 is less than the diameter size of left valve body 1, can be when this diaphragm buffering formula rubber lamella check valve moves, the different effect of water pressure appears, after water feeding mouth 5 intakes, under the effect through rivers and water pressure, make rubber lamella 10 open, get into outlet 6 department with water, and is simple and convenient.

When the diaphragm buffering type rubber flap check valve is used, the right valve body 2 fixedly welded on the right side of the front surface of the left valve body 1 is used, and the diameter size of the right valve body 2 fixedly welded on the right side of the front surface of the left valve body 1 is smaller than that of the left valve body 1, so that different water pressure effects can be achieved when the diaphragm buffering type rubber flap check valve is operated, and after water enters the water supply port 5, the rubber flap 10 is opened under the action of water flow and water pressure to enable water to enter the water outlet 6, and the diaphragm buffering type rubber flap check valve is simple and convenient; the pivot 9 of valve gap 8 openly upper end left side fixed mounting, and pivot 9 and rubber lamella 10 rotate to be connected, and the surface is covered with the rubber material, effectively makes rubber lamella 10 life extension, reduces the cost of maintenance and maintenance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a diaphragm buffering formula rubber lamella check valve, includes left valve body (1), the fixed welding in the positive right side of left side valve body (1) has right valve body (2), its characterized in that: left side valve body (1) and right valve body (2) openly top central point put fixed welding have mounting (3), mounting (3) openly top both sides fixedly connected with fixing bolt (4), water feeding mouth (5) and outlet (6) have been seted up at left side valve body (1) and right valve body (2) openly both ends, left side valve body (1) and right valve body (2) openly inboard are equipped with main valve body (11), main valve body (11) openly inboard top fixed mounting have valve gap (8), valve gap (8) openly upper end left side fixed mounting has pivot (9), pivot (9) openly swing joint have steel bar (7), steel bar (7) openly right side bottom fixedly connected with rubber lamella (10), through-hole (12) have openly been seted up all around to water feeding mouth (5) and outlet (6).

2. The diaphragm-cushioned rubber flap check valve of claim 1, wherein: the right valve body (2) fixedly welded on the right side of the front surface of the left valve body (1) is smaller than the left valve body (1) in diameter size and is fixedly welded and communicated with one end of the inner side of the water feeding port (5) and the water discharging port (6).

3. The diaphragm-cushioned rubber flap check valve of claim 1, wherein: fixing bolts (4) fixedly connected with the two sides of the front top end of the fixing piece (3) penetrate through the inner walls of the front top ends of the left valve body (1) and the right valve body (2), the number of the fixing bolts is four, and the fixing bolts are symmetrically distributed on the two sides of the front top end of the fixing piece (3).

4. The diaphragm-cushioned rubber flap check valve of claim 1, wherein: the water feeding port (5) and the water discharging port (6) which are arranged at the two ends of the front surfaces of the left valve body (1) and the right valve body (2) are cylindrical, and the diameters of the left valve body (1) and the right valve body (2) are consistent.

5. The diaphragm-cushioned rubber flap check valve of claim 4, wherein: the steel bar (7) movably connected with the front surface of the rotating shaft (9) is cuboid in shape, and the bottom end of the steel bar (7) is attached to the inner side of the bottom end of the main valve body (11).

6. The diaphragm-cushioned rubber flap check valve of claim 5, wherein: the rubber material is coated on the surface of the rubber petal (10) fixedly connected with the bottom end of the right side of the front surface of the steel bar (7).

7. The diaphragm-cushioned rubber flap check valve of claim 1, wherein: the water supply opening (5) and the water outlet (6) are provided with a plurality of through holes (12) around the front surface, the diameter sizes of the through holes (12) are consistent, and the through holes are symmetrically distributed around the front surfaces of the water supply opening (5) and the water outlet (6).