Pressure regulating valve capable of regulating pressure

Abstract

The utility model relates to the technical field of gas pressure regulation, and discloses a pressure regulating valve capable of regulating pressure, which comprises a valve body and a ring block, a threaded rod is arranged at the vertical center of the right end surface of the valve body, and the threaded rod penetrates through the right end surface of the valve body; the right end face of the threaded rod is fixedly connected with a rotating rod, and the left end face of the threaded rod is fixedly connected with an adjusting block. The inner wall of the valve body is fixedly connected with stop blocks, and the stop blocks are symmetrically arranged relative to the center of the valve body; the inner wall face of the valve body is fixedly connected with spring reset shafts, and the spring reset shafts are symmetrically arranged relative to the valve body. A buffer plate is fixedly connected to the outer end of the spring reset shaft, and a positioning block is arranged at the left end of the buffer plate. On the basis that the pressure of the pressure valve is adjusted, the air outlet flow channel adjusting device is additionally arranged, the two structures are matched with each other so that the flow of high-pressure air in the pressure adjusting valve can be more accurately adjusted and controlled, and the pressure adjusting valve is simple and stable in structure and easy to implement.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pressure regulation, in particular to a pressure regulating valve capable of regulating pressure. Background Art

[0002] The pressure regulating valve is a key device. Its main function is to adjust the pressure of the pipeline system by regulating the pressure of the medium itself in a specific area. In urban natural gas supply systems, pressure regulating valves are widely used to ensure the stability and safety of gas supply. However, existing pressure regulating valves still have certain defects, such as:

[0003] "A pressure regulating valve" with application number CN201521131453.4 includes a valve body, a pressure regulating channel is provided on the valve body, an elastic element is provided in the pressure regulating channel, and a pressure regulating rod is also provided on the valve body for abutting against the elastic element, and the pressure regulating rod includes threaded parts arranged at both ends of the pressure regulating rod, and a smooth rod part is provided between the two threaded parts; one of the threaded parts is threadedly installed in the pressure regulating channel, and the other threaded part is provided with a locking nut, and a sealing element is provided between the locking nut and the valve body, and the sealing element is mounted on the smooth rod part; the device can only simply realize the basic function of the pressure regulating valve, and cannot flexibly adjust the flow rate of the high-pressure gas entering the valve body according to needs, and cannot flexibly control the size of the outlet flow channel, and cannot meet the use requirements. In view of this, a pressure regulating valve that can adjust the pressure is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a pressure regulating valve capable of adjusting pressure, so as to solve the problem in the above background technology that the existing pressure regulating valve cannot flexibly adjust the size of the high-pressure gas flow entering the valve body according to demand and cannot flexibly adjust the size of the valve body outlet flow channel.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: it includes a valve body and a ring block, a threaded rod is provided at the vertical center of the right end face of the valve body, and the threaded rod passes through the right end face of the valve body; the right end face of the threaded rod is fixedly connected to a rotating rod, and the left end face of the threaded rod is fixedly connected to an adjusting block; the inner wall of the valve body is fixedly connected to a stop block, and the stop block is symmetrically arranged about the center of the valve body; the inner wall of the valve body is fixedly connected to a spring return shaft, and the spring return shaft is symmetrically arranged about the valve body; the outer end of the spring return shaft is fixedly connected to a buffer plate, and a positioning block is provided at the left end of the buffer plate; the positioning block is fixedly connected to the inner wall of the valve body; the right side column of the valve body is provided with a pressure relief groove, and the right outer edge of the valve body is provided with a slider, and the slider is coaxially arranged with the valve body; the valve body is slidably connected to the ring block through the slider.

[0006] The above technical solution is adopted to ensure the stability of the overall structure and realize pressure regulation of the pressure regulating valve.

[0007] As a preferred technical solution of the present invention, a positioning groove coaxially arranged with the pressure relief groove is provided in the ring block, and the radius of the positioning groove is equal to that of the pressure relief groove.

[0008] The above technical solution makes it easy to control the size of the valve body's outlet flow channel.

[0009] As a preferred technical solution of the present invention, a one-way valve is fixedly connected to the inner wall of the valve body, and the one-way valve is located at the left end of the regulating block.

[0010] The above technical solution is adopted to prevent the high-pressure gas entering the valve body from flowing back.

[0011] As a preferred technical solution of the present invention, a groove is provided on the right end surface of the ring block, and a slide rail is provided on the outer wall surface of the valve body; the slide rail is slidably connected to the limit block.

[0012] The above technical solution facilitates the relative fixation of the valve body and the ring block.

[0013] As a preferred technical solution of the present invention, the ring block is fixed relative to the valve body through the limit block, the slide rail and the groove.

[0014] By adopting the above technical solution, it is convenient to control the size of the outlet flow channel in the valve body by controlling the position of the adjustment groove.

[0015] As a preferred technical solution of the present invention, the break of the stopper is arc-shaped, and the stopper can be closed with the adjustment block.

[0016] The above technical solution is adopted to facilitate the control of the flow rate of high-pressure gas entering the valve body.

[0017] As a preferred technical solution of the present invention, the buffer plate, the stop block, the regulating block, and the one-way valve are all made of high-temperature and pressure-resistant materials.

[0018] The above technical solution is adopted to ensure the stability of the internal structure of the valve body.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: on the basis of realizing pressure regulation of the pressure valve, the device is additionally provided with an outlet flow channel regulating device. The two structures cooperate with each other to more accurately regulate the size of the high-pressure gas flow in the pressure regulating valve, and the structure is simple, stable, and easy to implement;

[0020] 1. The threaded rod is rotated by the rotating rod, and the threaded rod drives the regulating block to move back and forth in the valve body. When the regulating block moves to the left end of the valve body and moves to the point where the regulating block does not contact the stopper, the high-pressure gas flow into the valve body reaches the maximum. When the regulating block moves to the right end of the valve body, the contact area between the regulating block and the stopper gradually increases until the regulating block completely blocks the stopper. At this time, the capacity of the high-pressure gas entering the valve body is minimized. By controlling the size of the contact area between the regulating block and the stopper, the size of the high-pressure gas flow through the valve body is controlled.

[0021] 2. By rotating the ring block, the relative position of the pressure relief groove and the adjustment groove is adjusted to control the gas output of the valve body. When the gas output flow of the device reaches the expected setting, turn the limit block to make the ring block and the valve body relatively fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the utility model when the flow rate through the valve body is maximum;

[0023] Figure 2 This is a schematic diagram of the structure of the main cross-section of the valve body of the utility model when the flow rate decreases;

[0024] Figure 3 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0025] Figure 4 This is a schematic diagram of the connection structure between the adjustment block and the threaded rod of the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model.

[0027] In the figure: 1. Valve body; 2. Rotating rod; 3. Threaded rod; 4. Slider; 5. Buffer plate; 6. Stop block; 7. Adjusting block; 8. Limit block; 9. Slide rail; 10. Pressure relief groove; 11. Adjusting groove; 12. One-way valve; 13. Ring block; 14. Spring return shaft. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-5The utility model discloses a pressure regulating valve which can adjust the pressure, comprising a valve body 1 and a ring block 13, characterized in that: a threaded rod 3 is provided at the vertical center of the right end face of the valve body 1, and the threaded rod 3 passes through the right end face of the valve body 1; the right end face of the threaded rod 3 is fixedly connected to the rotating rod 2, and the left end face of the threaded rod 3 is fixedly connected to the adjusting block 7; the inner wall of the valve body 1 is fixedly connected to the spring return shaft 14, and the spring return shaft 14 is symmetrically arranged about the valve body 1; the outer end of the spring return shaft 14 is fixedly connected to the buffer plate 5, and the left end of the buffer plate 5 is provided with a positioning block; the positioning block is fixedly connected to the inner wall surface of the valve body 1; a pressure relief groove 10 is provided on the right column of the valve body 1, and a slider 4 is provided on the right outer edge of the valve body 1, and the slider 4 is coaxially arranged with the valve body 1; the valve body 1 is slidably connected to the ring block 13 through the slider 4, so as to ensure the stability of the overall structure and realize pressure regulation of the pressure regulating valve;

[0030] The ring block 13 is provided with a positioning groove 11 coaxially arranged with the pressure relief groove 10, and the radius of the positioning groove 11 is equal to that of the pressure relief groove 10, so as to facilitate the control of the size of the outlet flow channel of the valve body 1;

[0031] A one-way valve 12 is fixedly connected to the inner wall of the valve body 1, and the one-way valve 12 is located at the left end of the regulating block 7 to prevent the high-pressure gas entering the valve body 1 from flowing back;

[0032] A groove is provided on the right end surface of the ring block 13, and a slide rail 9 is provided on the outer wall surface of the valve body 1; the slide rail 9 is slidably connected to the limit block 8, so as to facilitate the relative fixation of the valve body 1 and the ring block 13;

[0033] The ring block 13 is fixed relative to the valve body 1 through the limit block 8, the slide rail 9 and the groove, so that the size of the outlet flow channel in the valve body 1 can be controlled by controlling the position of the adjustment groove 11;

[0034] The fracture of the stopper 6 is arc-shaped, and the stopper 6 can be closed with the regulating block 7, so as to control the flow of the high-pressure gas entering the valve body 1;

[0035] The buffer plate 5, the stopper 6, the regulating block 7 and the one-way valve 12 are all made of high temperature and pressure resistant materials to ensure the stability of the internal structure of the valve body 1;

[0036] Working principle: The threaded rod 3 is rotated by the rotating rod 2, and the threaded rod 3 drives the adjusting block 7 to move back and forth in the valve body 1. When the adjusting block 7 moves to the left end of the valve body 1 and moves to the point where the adjusting block 7 is no longer in contact with the stopper 6, the capacity of the high-pressure gas entering the valve body 1 reaches a maximum. When the adjusting block 7 moves to the right end of the valve body 1, the contact area between the adjusting block 7 and the stopper 6 gradually increases until the adjusting block 7 completely blocks the stopper 6. At this time, the capacity of the high-pressure gas entering the valve body 1 is minimized. By controlling the size of the contact area between the adjusting block 7 and the stopper 6, the size of the high-pressure gas flow through the valve body 1 is controlled.

[0037] By rotating the ring block 13, the relative positions of the pressure relief groove 10 and the adjustment groove 11 are adjusted, thereby controlling the air outlet of the valve body 1. When the air outlet flow of the device reaches the expected setting, the limit block 8 is turned to make the ring block 13 and the valve body 1 relatively fixed. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pressure regulating valve capable of regulating pressure, comprising a valve body (1) and a ring block (13), characterized in that: A threaded rod (3) is provided at the vertical center of the right end face of the valve body (1), and the threaded rod (3) passes through the right end face of the valve body (1); the right end face of the threaded rod (3) is fixedly connected to a rotating rod (2), and the left end face of the threaded rod (3) is fixedly connected to an adjusting block (7); the inner wall of the valve body (1) is fixedly connected to a stopper (6), and the stopper (6) is symmetrically arranged about the center of the valve body (1); the inner wall of the valve body (1) is fixedly connected to a spring return shaft (14), and the spring return shaft ( 14) is symmetrically arranged with respect to the valve body (1); the outer end of the spring return shaft (14) is fixedly connected to a buffer plate (5), and the left end of the buffer plate (5) is provided with a positioning block; the positioning block is fixedly connected to the inner wall surface of the valve body (1); the right column of the valve body (1) is provided with a pressure relief groove (10), and the right outer edge of the valve body (1) is provided with a slider (4), and the slider (4) is coaxially arranged with the valve body (1); the valve body (1) is slidably connected to a ring block (13) through the slider (4).

2. The pressure regulating valve capable of adjusting pressure according to claim 1, characterized in that: A positioning groove (11) coaxially arranged with the pressure relief groove (10) is provided in the ring block (13), and the radius of the positioning groove (11) is equal to that of the pressure relief groove (10).

3. The pressure regulating valve capable of regulating pressure according to claim 2, characterized in that: A one-way valve (12) is fixedly connected to the inner wall surface of the valve body (1), and the one-way valve (12) is located at the left end of the regulating block (7).

4. The pressure regulating valve capable of regulating pressure according to claim 3, characterized in that: A groove is provided on the right end surface of the ring block (13), and a slide rail (9) is provided on the outer wall surface of the valve body (1); the slide rail (9) is slidably connected to the limit block (8).

5. The pressure regulating valve capable of adjusting pressure according to claim 4, characterized in that: The ring block (13) is fixed relative to the valve body (1) through the limiting block (8), the slide rail (9) and the groove.

6. The pressure regulating valve capable of regulating pressure according to claim 5, characterized in that: The stopper (6) has an arc-shaped fracture, and the stopper (6) can be closed with the regulating block (7).

7. The pressure regulating valve capable of regulating pressure according to claim 6, characterized in that: The buffer plate (5), the stopper (6), the regulating block (7), and the one-way valve (12) are all made of high-temperature and pressure-resistant materials.

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