Air check valve for speed regulator pressure tank
Technical Field
The utility model relates to the technical field of check valves, in particular to an air check valve for a speed regulator pressure tank.
Background
The check valve is also called a one-way valve, a check valve and a back pressure valve, and is automatically opened and closed by the force generated when the medium flows in the pipeline, and belongs to an automatic valve.
The air check valve comprises a valve body, a valve plate for closing or opening an air inlet end of the valve body, and a bendable elastic connecting plate, wherein the valve plate is rotatably installed in the valve body through the elastic connecting plate, the elastic connecting plate comprises a fixing part and an installation part connected with the fixing part, the elastic connecting plate is installed on the inner wall of the air inlet end of the valve body through the fixing part, one end of the valve plate is installed on the installation part, the valve plate rotates under the air inlet pressure state of the air inlet end of the valve body and drives the installation part to bend relative to the fixing part, the air inlet end of the valve body is opened, the valve plate is elastically reset by the installation part and/or rotates under the action of gravity under the action of the pressure relief of the air inlet end of the valve body, the air check valve is installed in the valve body through the elastic connecting plate, the rotation of the valve plate is realized, and according to the fact that the air check valve plate can be better applied, although the air check valve is generally inconvenient to carry out air relief and has a certain potential safety hazard, and the air check valve has a certain potential safety hazard.
Disclosure of utility model
The utility model aims to provide an air check valve for a speed regulator pressure tank, so as to solve the problems that although the air check valve can be well applied in the background technology, the air check valve is generally inconvenient to carry out air supplementing and air discharging treatment, so that the internal air pressure of the air check valve is easy to be in a higher and lower shape, and a certain potential safety hazard exists.
The air check valve for the speed regulator pressure tank comprises a check valve body, wherein the top end of the check valve body is provided with an air supplementing valve body, an equidistant stud is arranged at the edge position of the surface of the air supplementing valve body, a first nut is arranged at one end of the stud far away from the air supplementing valve body, a second gasket is arranged at the contact position of the stud and the air supplementing valve body, an air exhausting valve body is arranged on the outer wall of one side of the air supplementing valve body, a first valve rod is arranged in the air exhausting valve body, one end of the first valve rod extends to the outer part of the air exhausting valve body and is provided with a first hand wheel, a second nut is arranged on the outer wall of the first hand wheel far away from one side of the air exhausting valve body, a screw sleeve is arranged on the surface of the air supplementing valve body, a second valve rod is arranged in the screw sleeve, one end of the second valve rod extends to the outer part of the screw sleeve and is provided with a second hand wheel, a gland is arranged on the outer wall of one side of the screw sleeve far away from the air supplementing valve body, and a locking nut is arranged on the outer wall of one side of the screw sleeve far away from the air supplementing valve body.
Preferably, one end of the inner part of the check valve body is provided with a valve plug, the inner part of the check valve body below the valve plug is provided with a rubber pad, and the stability between the valve plug and the check valve body is improved through the arrangement of the rubber pad.
Preferably, a first gasket is arranged in the check valve body below the rubber gasket, a screw is arranged at the bottom end of the first gasket, and stability between the screw and the check valve body is improved through the arrangement of the first gasket.
Preferably, a spring is arranged in the check valve body above the valve plug, a fourth gasket is arranged at the connecting position of the check valve body and the air supplementing valve body, and firmness between the check valve body and the air supplementing valve body is improved through the arrangement of the fourth gasket.
Preferably, a third gasket is arranged at the connecting position of the screw sleeve and the air supplementing valve body, an O-shaped ring is arranged in the air supplementing valve body at the outer side of the second valve rod, and the tightness and the firmness of the air check valve are improved through the arrangement of the O-shaped ring and the third gasket.
Preferably, packing is arranged on the outer wall of the second valve rod on one side of the gland, an O-shaped sealing ring is arranged on the outer wall of one end, far away from the second hand wheel, of the second valve rod, and the tightness of the air check valve is improved through the arrangement of the O-shaped sealing ring.
Compared with the prior art, the air check valve for the speed regulator pressure tank has the beneficial effects that potential safety hazards of the air check valve are eliminated, so that the safety of the air check valve in use is improved, the tightness of the air check valve in use is improved, the integral firmness of the air check valve is ensured, and the convenience of the air check valve in maintenance is improved;
(1) Through the arrangement of the relevant parts such as the air supplementing valve body, the air supplementing valve body and the like, the air non-return valve can be subjected to air supplementing and air supplementing treatment, and the high pressure or low pressure state inside the air non-return valve can be reduced, so that the potential safety hazard of the air non-return valve is eliminated, and the safety of the air non-return valve during use is improved;
(2) The first gasket, the second gasket, the O-shaped sealing ring, the O-shaped ring, the third gasket and the fourth gasket are arranged, so that the connection positions of all parts of the air check valve can be sealed and fastened, the tightness of the air check valve in use is improved, and the integral firmness of the air check valve is ensured;
(3) Through the setting of screw and screw column, only need screw out screw and double-screw bolt to the outside of check valve body and air make-up valve body, can dismantle the processing to the air check valve to the convenience when having improved the air check valve maintenance.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
FIG. 3 is a schematic side view of the air make-up valve of the present utility model;
fig. 4 is a schematic diagram of the front view structure of the air supply valve body of the utility model.
The valve comprises a check valve body 1, a screw, a first gasket, a rubber gasket 4, a valve plug 5, a spring 6, a spring 7, an air supplementing valve body 8, a stud 9, a first nut 10, a second gasket 11, an air releasing valve body 12, a first valve rod 13, a first hand wheel 14, a second nut 15, an O-shaped sealing ring 16, an O-shaped ring 17, a screw sleeve 18, a second valve rod 19, a third gasket 20, a packing 21, a gland 22, a locking nut 23, a fourth gasket 24 and a second hand wheel.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. 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 FIGS. 1-4, an air check valve for a pressure tank of a speed regulator according to an embodiment of the present utility model includes a check valve body 1, a valve plug 5 is disposed at one end inside the check valve body 1, and a rubber pad 4 is disposed inside the check valve body 1 below the valve plug 5;
when in use, the stability between the valve plug 5 and the check valve body 1 is improved through the arrangement of the rubber pad 4;
A first gasket 3 is arranged in the check valve body 1 below the rubber gasket 4, and a screw 2 is arranged at the bottom end of the first gasket 3;
When in use, the stability between the screw 2 and the check valve body 1 is improved through the arrangement of the first gasket 3;
a spring 6 is arranged in the check valve body 1 above the valve plug 5, and a fourth gasket 23 is arranged at the connection position of the check valve body 1 and the air supplementing valve body 7;
When in use, the firmness between the check valve body 1 and the air supplementing valve body 7 is improved through the arrangement of the fourth gasket 23;
The top of the check valve body 1 is provided with an air supplementing valve body 7, an equidistant stud 8 is arranged at the edge position of the surface of the air supplementing valve body 7, a first nut 9 is arranged at one end of the stud 8 far away from the air supplementing valve body 7, a second gasket 10 is arranged at the contact position of the stud 8 and the air supplementing valve body 7, an air exhausting valve body 11 is arranged on the outer wall of one side of the air supplementing valve body 7, a first valve rod 12 is arranged in the air exhausting valve body 11, one end of the first valve rod 12 extends to the outer part of the air exhausting valve body 11 and is provided with a first hand wheel 13, a second nut 14 is arranged on the outer wall of the first valve rod 12 at one side of the first hand wheel 13 far away from the air exhausting valve body 11, a screw sleeve 17 is arranged on the surface of the air supplementing valve body 7, a third gasket 19 is arranged at the connection position of the screw sleeve 17 and the air supplementing valve body 7, and an O-shaped ring 16 is arranged in the air supplementing valve body 7 at the outer side of the second valve rod 18;
When the air check valve is used, the sealing performance and the firmness of the air check valve are improved through the arrangement of the O-shaped ring 16 and the third gasket 19;
the packing 20 is arranged on the outer wall of the second valve rod 18 at one side of the gland 21, and the O-shaped sealing ring 15 is arranged on the outer wall of one end, far away from the second hand wheel 24, of the second valve rod 18;
When in use, the sealing performance of the air check valve is improved through the arrangement of the O-shaped sealing ring 15;
The inside of swivel nut 17 is provided with second valve rod 18, and the one end of second valve rod 18 extends to the outside of swivel nut 17 and is provided with second hand wheel 24, is provided with gland 21 on the outer wall of swivel nut 17 side of keeping away from the air make-up valve body 7, is provided with lock nut 22 on the outer wall of gland 21 side of keeping away from swivel nut 17.
When the air check valve is used, the connection positions of all the components of the air check valve can be sealed and fastened through the arrangement of the first gasket 3, the second gasket 10, the O-shaped sealing ring 15, the O-shaped sealing ring 16, the third gasket 19 and the fourth gasket 23, so that the tightness of the air check valve is improved, the integral firmness of the air check valve is guaranteed, then the air check valve can be deflated and inflated through the arrangement of the air inflation valve body 7, the air inflation valve body 11 and other related components, the inside of the air check valve can be further reduced to be in a high-pressure or low-pressure state, potential safety hazards of the air check valve can be eliminated, the safety of the air check valve is improved, and finally through the arrangement of the screw 2 and the stud 8, the air check valve can be detached and maintained only by screwing the screw 2 and the stud 8 out of the air check valve body 1 and the air check valve body 7, and the use of the air check valve is completed.