CN210318509U

CN210318509U - Pressure regulating valve

Info

Publication number: CN210318509U
Application number: CN201920393749.5U
Authority: CN
Inventors: 李文健
Original assignee: Wenzhou Ouyue Valve Co Ltd
Current assignee: Wenzhou Ouyue Valve Co Ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-04-14
Anticipated expiration: 2029-03-27

Abstract

The utility model discloses the innovation provides a pressure regulating valve when can flowing according to the manual regulation liquid of customer's needs. This kind of pressure regulating valve includes the valve body, the case, adjusting screw and pressure detection table, the valve body includes valve body and lower valve body, lower valve body includes the water inlet and the delivery port of the left and right sides and is located the inside case seat of valve body down, case seat one end communicates with each other with the delivery port, adjusting screw acts on the case, the adjusting screw bottom is equipped with the pressure spring, the case includes valve rod and valve plate, the valve plate is located the valve rod bottom, the valve rod is divided into upper end piston portion and lower extreme logical water portion, the valve plate bottom is equipped with down the pressure spring, the pressure detection table sets up valve body one side down. According to the pressure regulating valve, when the liquid flowing in at high pressure needs to be decompressed, the regulating screw rod is rotated, the regulating screw rod extrudes the valve core downwards, the valve plate on the valve core is separated from the bottom of the valve core seat, the inflow port is exposed, and the liquid flows in from the water inlet, flows through the lower valve body and the decompression of the valve core and finally flows out from the water outlet.

Description

Pressure regulating valve

Technical Field

The utility model belongs to the valve field especially relates to a pressure regulating valve.

Background

The pressure regulating valve is also called a pressure reducing valve, and means that the pressure of the original high pressure flowing at high speed is reduced after passing through the regulating valve, and the liquid flows out after changing into low pressure, but the pressure regulating valve (pressure reducing valve) which is circulated in the market at present has many defects, such as: 1. the existing pressure reducing valve is not provided with a device capable of regulating the specified pressure after liquid flows out, and the specified pressure cannot be regulated on one valve according to the requirements of customers; 2. when liquid enters the valve, the pressure is overlarge, the liquid is easy to spray out of the upper valve body, and the sealing effect is poor. Due to the defects, the application range of the pressure reducing valve is reduced, the sealing effect is poor, and the leakage is easy.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies in the prior art, the utility model discloses the innovation provides a pressure regulating valve that pressure when can be according to customer needs manual regulation liquid outflow, and can prevent that the too big and leakage of pressure of liquid inflow.

This kind of pressure regulating valve, including valve body, case, adjusting screw and pressure detection table, the valve body includes valve body and lower valve body, the valve body includes the water inlet and the delivery port of the left and right sides and is located the inside case of valve body down, the case sets up in the case, case one end communicates with each other with the delivery port, adjusting screw is located the valve body, adjusting screw acts on the case, the adjusting screw bottom is equipped with the pressure spring, the case includes valve rod and valve plate, the valve plate is located the valve rod bottom, the valve rod divide into upper end piston portion and lower extreme logical water portion, the valve plate bottom is equipped with down the pressure spring, the pressure detection table sets up valve body one side down.

Go up and be equipped with sealed dish between valve body and the lower valve body, sealed dish inlays in the seal groove of valve body down, be equipped with the caulking groove on the sealed dish, be equipped with the gasket in the caulking groove, the double-screw bolt at valve rod top passes sealed dish and gasket and nut and is connected.

The adjusting screw comprises an adjusting stud and a stud sleeve, the upper end of the adjusting stud is a smooth end, the lower end of the adjusting stud is a threaded end, a convex block is arranged between the smooth end and the threaded end, the stud sleeve is connected to the threaded end of the adjusting stud in a matched mode through threads, the upper end of the upper pressure spring is pressed on the stud sleeve in a propping mode, and the lower end of the upper pressure spring is pressed on the gasket in a propping mode.

The double-screw bolt of water-passing portion bottom passes the valve plate and is connected with the nut, the diameter of piston portion is the same with the cross section diameter of case seat, the diameter of water-passing portion is less than the cross section diameter of case seat, the diameter of valve plate is greater than the cross section diameter of case seat.

The lower valve body bottom is equipped with the lower cover, the top of pushing down the pressure spring pushes up in the valve plate bottom, pushes down the pressure spring lower extreme and supports to press on the lower cover.

And sealing rings are arranged on the surface of the piston part, the contact surface of the valve plate and the bottom of the valve core seat and the joint of the lower cover and the lower valve body, and are rubber rings.

And a rotating handle is arranged at the position where the adjusting screw penetrates through the upper valve body.

According to the utility model provides a pressure regulating valve, the case in to the case seat is adjusted from top to bottom through adjusting screw's rotation, flows the liquid that goes into when needs to the high pressure and reduces pressure, then rotates adjusting screw, and adjusting screw extrudees the case downwards, and valve plate on the case and case seat bottom part separately expose the mouth that flows in, and liquid flows in from the water inlet through the delivery port from the decompression of lower valve body and case at last.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a sectional view of the present invention.

Detailed Description

As shown in fig. 1-2, the pressure regulating valve comprises a valve body, a valve core, a regulating screw and a pressure detecting gauge 3, wherein the valve body comprises an upper valve body 1 and a lower valve body 2, the lower valve body 2 comprises a water inlet 4 and a water outlet 5 at the left side and the right side, and a valve core seat 7 positioned inside the lower valve body 2, the valve core is arranged in the valve core seat 7, one end of the valve core seat 7 is communicated with the water outlet 5, the regulating screw is positioned in the upper valve body 1, because the valve core needs to be regulated to realize the pressure reduction of liquid, the regulating screw acts on the valve core, an upper pressure spring 8 is arranged at the bottom of the regulating screw, the valve core in the valve core seat 7 is regulated up and down by the rotation of the regulating screw, when the high-pressure inflow liquid needs to be reduced, the regulating screw is rotated to extrude the valve core in the valve core seat 7 downwards, the valve, the valve rod 9 is upper end piston portion 91 and lower extreme logical water portion 92, valve plate 10 bottom is equipped with down pressure spring 11, the case receives decurrent pressure after, valve plate 10 on the case separates with case seat 7 bottom, valve plate 10 no longer pushes up and presses in case seat 7 bottom, expose the mouth that flows in, piston portion 91 moves to in the case seat 7, logical water portion 92 moves to and aims at delivery port 5 department, liquid flows in from water inlet 4 and flows out from delivery port 5 at last through the decompression of lower valve body 2 and case, so that reach the effect of decompression. The pressure detection meter 3 is arranged on one side of the lower valve body 2 and is used for checking the liquid pressure inside the valve body at any time.

Go up valve body 1 and be equipped with sealed dish 12 (rubber dish) between the valve body 2 down, sealed dish 12 main function prevents that water from spilling over to last valve body 1 from valve body 2 down, sealed dish 12 inlays in the seal groove of valve body 2 down, be equipped with the caulking groove on sealed dish 12, be equipped with gasket 13 in the caulking groove, the double-screw bolt at valve rod 9 top passes sealed dish 12 and gasket 13 and is connected with the nut, the nut does not screw to gasket 13 on, certain distance in addition between nut and the gasket 13, mainly be after adjusting screw rotates to pushing down, the case just can down remove, and gasket 13 mainly prevents that the nut from pushing down to the bottommost back, cause wearing and tearing to sealed dish 12.

The existing pressure reducing valve has no pressure regulating device and can not regulate the specified pressure on one valve according to the requirements of customers, so the regulating valve is provided with a regulating screw for manual regulation, the regulating screw comprises a regulating stud 14 and a stud sleeve 15, the upper end of the regulating stud 14 is a smooth end 141, the lower end of the regulating stud 14 is a threaded end 142, a bump 16 is arranged between the smooth end 141 and the threaded end 142, the bump 16 mainly supports against the stud sleeve 15, the stud sleeve 15 is connected to the threaded end 142 of the regulating stud 14 in a matching way through threads, the upper end of an upper pressure spring 8 supports against the stud sleeve 15, the lower end of the upper pressure spring 8 supports against a gasket 13, the smooth end 141 of the regulating stud 14 is rotated, the stud sleeve 15 can slowly move downwards, the stud sleeve 15 rotates to the bottom of the threaded end along with the increase of the number of rotation turns, the stud sleeve 15 compresses the upper pressure spring 8, the stud sleeve 15 moves to a nut at the top end, the screw is pressed down so that the valve plate 10 is separated from the valve core base 7 and the opening of the valve core base 7 is exposed.

The stud at the bottom of the water passing part 92 penetrates through the valve plate 10 to be connected with the nut, after the valve core moves downwards, water flows into the valve core seat 7, in order to prevent the water from overflowing from the piston part 91 to the valve core seat 7, the diameter of the piston part 91 is the same as the diameter of the cross section of the valve core seat 7, in order to enable the water to enter the valve core seat 7, and the water flows into the valve body from the valve core seat 7, the diameter of the water passing part 92 is smaller than the diameter of the cross section of the valve core seat 7, and the diameter of the valve plate 10 is larger than the diameter of the.

In order to enable water to play a role in buffering in the valve body after entering from the water inlet, the lower cover 17 is arranged at the bottom of the lower valve body 2, the water can be buffered and decompressed between the lower cover 17 and the valve plate 10 after entering the lower valve body 2, the upper end of the lower pressure spring 11 is pressed against the bottom of the valve plate 10, the lower end of the lower pressure spring 11 is pressed against the lower cover 17, and the lower cover 17 also has a pressing role on the lower pressure spring 11.

In order to improve the sealing performance of the valve body, sealing rings 18 are arranged on the surface of the piston part 91, the contact surface of the valve plate 10 and the bottom of the valve core seat 7 and the joint of the lower cover 17 and the lower valve body 2, and the sealing rings 18 are rubber rings.

In order to facilitate the staff to rotate the adjusting stud 14, a rotating handle 6 is arranged at the position where the adjusting stud penetrates through the upper valve body 1.

Claims

1. The utility model provides a pressure regulating valve, includes valve body, case, adjusting screw and pressure detection table (3), its characterized in that: the valve body includes valve body (1) and lower valve body (2), valve body (2) include water inlet (4) and delivery port (5) of the left and right sides and are located valve core case (7) of valve body (2) inside down, the case sets up in valve core case (7), valve core case (7) one end communicates with each other with delivery port (5), adjusting screw is located valve body (1), adjusting screw acts on the case, the adjusting screw bottom is equipped with pressure spring (8), the case includes valve rod (9) and valve plate (10), valve plate (10) are located valve rod (9) bottom, valve rod (9) divide into upper end piston portion (91) and lower extreme logical water portion (92), valve plate (10) bottom is equipped with down pressure spring (11), pressure detection table (3) set up valve body (2) one side down.

2. A pressure-regulating valve as claimed in claim 1, characterized in that: go up valve body (1) and be equipped with sealed dish (12) down between valve body (2), sealed dish (12) are inlayed in the seal groove of valve body (2) down, be equipped with the caulking groove on sealed dish (12), be equipped with gasket (13) in the caulking groove, the double-screw bolt at valve rod (9) top passes sealed dish (12) and gasket (13) and is connected with the nut.

3. A pressure-regulating valve as claimed in claim 1, characterized in that: the adjusting screw comprises an adjusting stud (14) and a stud sleeve (15), the upper end of the adjusting stud (14) is a smooth end (141), the lower end of the adjusting stud (14) is a threaded end (142), a convex block (16) is arranged between the smooth end (141) and the threaded end (142), the stud sleeve (15) is connected to the threaded end (142) of the adjusting stud in a matched mode through threads, the upper end of the upper pressure spring (8) is pressed on the stud sleeve (15), and the lower end of the upper pressure spring (8) is pressed on the gasket (13).

4. A pressure-regulating valve as claimed in claim 1, characterized in that: the double-screw bolt of logical water portion (92) bottom passes valve plate (10) and is connected with the nut, the diameter of piston portion (91) is the same with the cross section diameter of case seat (7), the diameter of logical water portion (92) is less than the cross section diameter of case seat (7), the diameter of valve plate (10) is greater than the cross section diameter of case seat (7).

5. A pressure-regulating valve as claimed in claim 1, characterized in that: the bottom of the lower valve body (2) is provided with a lower cover (17), the upper end of the lower pressure spring (11) is pressed against the bottom of the valve plate (10), and the lower end of the lower pressure spring (11) is pressed against the lower cover (17).

6. The pressure-regulating valve of claim 5, wherein: and sealing rings (18) are arranged on the surfaces of the piston parts (91), the contact surfaces of the valve plate (10) and the bottom of the valve core seat (7) and the joint of the lower cover (17) and the lower valve body (2), and the sealing rings (18) are rubber rings.

7. A pressure-regulating valve as claimed in claim 1, characterized in that: the adjusting screw rod is provided with a rotating handle (6) at the position of penetrating through the upper valve body (1).