High-stability pressure regulating valve

Abstract

The utility model relates to the technical field of pressure regulating valves, in particular to a high-stability pressure regulating valve which comprises a valve body and a valve seat, the inner wall of the valve body is fixedly connected with the valve seat, the inner wall of the valve body is in threaded connection with a first bolt, the outer wall of the first bolt is in threaded connection with a water inlet pipe, and the side end of the valve body is in threaded connection with a second bolt. The outer wall of the second bolt is in threaded connection with the water outlet pipe, and the outer wall of the valve body is connected with a fixing mechanism. The upper semicircular ring and the lower semicircular ring are arranged on the outer wall of the valve body in a sleeving mode, the upper end of the internal thread block abuts against the upper semicircular ring, the upper semicircular ring and the lower semicircular ring can be clamped and fixed to the valve body, the length between the mounting plate and the supporting base is changed, and an external screw penetrates into a fixing hole to fix the position; and when the valve body vibrates during working, the rubber pad deforms to achieve the damping effect, and the working stability of the valve body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulating valves, and specifically relates to a highly stable pressure regulating valve. Background Technique

[0002] Self-operated pressure regulating valves are divided into three series: self-operated pressure, differential pressure and flow regulating valves. According to the position of the pressure tapping point, they are divided into two categories: before the valve and after the valve. When the pressure tapping point is before the valve, it is used to keep the pressure before the valve constant. When the pressure tapping point is after the valve, it is used to keep the pressure after the valve constant.

[0003] For example, a highly stable self-operated pressure regulating valve with the authorization announcement number of "CN208719490U" solves the problems that the pressure of the fluid before or after the existing highly stable self-operated pressure regulating valve is unstable, and the sealing ring will be worn when the valve stem moves up and down. The above-mentioned situation takes into account that the existing highly stable self-operated pressure regulating valve is in a flowing state, and the internal pressure changes due to the flowing pressure, causing the whole valve body to vibrate. Facing the conventional placement of the valve body, the vibration wavelength will be extended, resulting in poor stability during operation. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that for the existing highly stable self-operated pressure regulating valve, when facing the conventional placement of the valve body, the vibration wavelength will be extended, resulting in poor stability during operation, and to propose a highly stable pressure regulating valve.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A highly stable pressure regulating valve, including a valve body and a valve seat. The inner wall of the valve body is fixedly connected to the valve seat. The inner wall of the valve body is threadedly connected to a first bolt, and the outer wall of the first bolt is threadedly connected to a water inlet pipe. The side end of the valve body is threadedly connected to a second bolt, and the outer wall of the second bolt is threadedly connected to a water outlet pipe. A fixing mechanism is connected to the outer wall of the valve body.

[0006] Preferably, the fixing mechanism includes an upper semi-circular ring. The inner wall of the upper semi-circular ring abuts against the valve body. The inner wall of the upper semi-circular ring is fixedly connected to a screw rod. The outer wall of the screw rod is threadedly connected to an internally threaded block. The outer wall of the internally threaded block abuts against a lower semi-circular ring. The lower end of the lower semi-circular ring is fixedly connected to a support seat. The lower end of the support seat is fixedly connected to a rubber pad.

[0007] Preferably, the upper end of the valve body is fixedly connected to a cylinder, and an adjusting mechanism is connected to the inner wall of the cylinder.

[0008] Preferably, the adjusting mechanism includes a threaded cap, a first air plug, and a valve stem. The outer wall of the threaded cap is threadedly connected to the cylinder. The outer wall of the first air plug is slidably connected to the cylinder. The outer wall of the valve stem is slidably connected to the cylinder. The lower end of the threaded cap abuts against the spring. The lower end of the spring abuts against the first air plug. The lower end of the first air plug is fixedly connected to the valve stem. The lower end of the valve stem is fixedly connected to the second air plug.

[0009] Preferably, the inner wall of the support seat is slidably connected to the mounting plate, and fixing holes are machined in the inner wall of the mounting plate.

[0010] Preferably, the lower end of the second air plug abuts against the valve seat, and a through hole is machined in the inner wall of the valve seat.

[0011] A highly stable pressure regulating valve proposed by the present utility model has the beneficial effects that by sleeving the upper semi-circular ring and the lower semi-circular ring on the outer wall of the valve body, the upper end of the internal thread block abuts against the upper semi-circular ring, so that the upper semi-circular ring and the lower semi-circular ring will be clamped and fixed to the valve body, changing the length between the mounting plate and the support seat, and using external screws to pass through the fixing holes for position fixing. When the valve body vibrates during operation, the rubber pad will deform to achieve the effect of shock absorption, and the stability of the valve body during operation will be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 the front view sectional structural diagram in

[0014] Figure 3 is Figure 1 the side view sectional structural diagram in

[0015] Figure 4 is Figure 2 the enlarged structural diagram at A in

[0016] Figure 5 is Figure 2 the enlarged structural diagram at B in

[0017] Figure 6 is Figure 2 the enlarged structural diagram at C in

[0018] In the figure: 1. Valve body, 2. Valve seat, 3. First bolt, 4. Water inlet pipe, 5. Second bolt, 6. Water outlet pipe, 7. Fixing mechanism, 701. Upper semi-circular ring, 702. Screw rod, 703. Lower semi-circular ring, 704. Support seat, 705. Rubber pad, 706. Internal thread block, 8. Cylinder, 9. Adjusting mechanism, 901. Threaded cover, 902. Spring, 903. First air plug, 904. Valve rod, 905. Second air plug, 10. Mounting plate, 11. Fixing hole, 12. Through hole. Specific implementation mode

[0019] The present utility model will be further described below in conjunction with the accompanying drawings:

[0020] Embodiment 1:

[0021] Please refer to Figures 1-6 : In this embodiment, a highly stable pressure regulating valve includes a valve body 1 and a valve seat 2. The inner wall of the valve body 1 is fixedly connected to the valve seat 2. The inner wall of the valve body 1 is threadedly connected to a first bolt 3, and the outer wall of the first bolt 3 is threadedly connected to a water inlet pipe 4. The side end of the valve body 1 is threadedly connected to a second bolt 5, and the outer wall of the second bolt 5 is threadedly connected to a water outlet pipe 6. The outer wall of the valve body 1 is connected to a fixing mechanism 7.

[0022] The fixing mechanism 7 includes an upper semi-circular ring 701, which is clamped and fixed to the valve body 1 through the upper semi-circular ring 701 and the lower semi-circular ring 703. External screws are inserted into the fixing holes 11 for position fixing, so that the valve seat 1 is fixed. The inner wall of the upper semi-circular ring 701 abuts against the valve body 1. The inner wall of the upper semi-circular ring 701 is fixedly connected to a screw rod 702. The outer wall of the screw rod 702 is threadedly connected to an internal thread block 706. The outer wall of the internal thread block 706 abuts against the lower semi-circular ring 703. The lower end of the lower semi-circular ring 703 is fixedly connected to a support seat 704. The lower end of the support seat 704 is fixedly connected to a rubber pad 705;

[0023] Put the upper semi-circular ring 701 and the lower semi-circular ring 703 on the outer wall of the valve body 1. The upper end of the internal thread block 706 abuts against the upper semi-circular ring 701, so that the upper semi-circular ring 701 and the lower semi-circular ring 703 are clamped and fixed to the valve body 1, changing the length between the mounting plate 10 and the support seat 704. Use external screws to insert into the fixing holes 11 for position fixing. When the valve body 1 vibrates during operation, the rubber pad 705 will deform to achieve a shock-absorbing effect, and the stability of the valve body 1 during operation will be improved.

[0024] The upper end of the valve body 1 is fixedly connected to the cylinder 8. An adjusting mechanism 9 is connected to the inner wall of the cylinder 8. By changing the distance position of the threaded cover 901 downward in the cylinder 8, the extrusion force on the spring 902 at the lower end of the threaded cover 901 is changed, so as to realize the adjustment of the pressure of the fluid inside the valve body 1. The adjusting mechanism 9 includes a threaded cover 901, a first air plug 903 and a valve rod 904. The outer wall of the threaded cover 901 is threadedly connected to the cylinder 8. The outer wall of the first air plug 903 is slidably connected to the cylinder 8. The outer wall of the valve rod 904 is slidably connected to the cylinder 8. In order to prevent fluid leakage from occurring between the valve rod 904 and the cylinder 8 during sliding into the cylinder 8, a sealing gasket needs to be fixed on the cylinder 8 to achieve a sealed sliding effect between the valve rod 904 and the cylinder 8. The lower end of the threaded cover 901 abuts against the spring 902. The lower end of the spring 902 abuts against the first air plug 903. The lower end of the first air plug 903 is fixedly connected to the valve rod 904. The lower end of the valve rod 904 is fixedly connected to the second air plug 905.

[0025] The inner wall of the support seat 704 is slidably connected to the mounting plate 10. Fixing holes 11 are machined on the inner wall of the mounting plate 10. The lower end of the second air plug 905 abuts against the valve seat 2. A through hole 12 is machined on the inner wall of the valve seat 2.

[0026] Working principle:

[0027] Installation stage

[0028] First, move the upper half ring 701 and the lower half ring 703 closer to the outer wall of the valve body 1. Insert the screw rod 702 on the upper half ring 701 into the lower half ring 703. The internal thread block 706 is screwed onto the screw rod 702 until the upper end of the internal thread block 706 abuts against the upper half ring 701. The upper half ring 701 and the lower half ring 703 will be clamped and fixed to the valve body 1. According to the distance of the installation position, the mounting plate 10 can be pulled to slide on the inner wall of the support seat 704, and the length between the mounting plate 10 and the support seat 704 is changed. External screws are inserted into the fixing holes 11 for position fixing. The rubber pad 705 at the lower end of the support seat 704 fits with the installation position. When the valve body 1 vibrates during operation, the rubber pad 705 will deform to achieve a shock-absorbing effect and provide a stable effect for the operation of the valve body 1.

[0029] Usage stage

[0030] The fluid flows into the interior of the valve body 1 from the water inlet pipe 4. The pressure generated by the fluid flowing through the interior of the valve body 1 squeezes the through hole 12 on the valve seat 2, causing the second air plug 905, the valve stem 904, and the first air plug 903 on the valve seat 2 to move upward. The through hole 12 on the valve seat 2 is opened, and the fluid flows from the through hole 12 to the water outlet pipe 6. At the same time, the first air plug 903 generates pressure to deform the spring 902. When the internal flow pressure of the valve body 1 is less than the pressure of the spring 902 on the lower end, the through hole 12 on the valve seat 2 will be closed. By turning the threaded cap 901 to the downward distance position on the cylinder 8, the extrusion force of the spring 902 at the lower end of the threaded cap 901 is changed, realizing the adjustment of the opening force of the through hole 12 on the valve seat 2 by the fluid pressure inside the valve body 1.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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 appended claims and their equivalents.

Claims

1. A highly stable pressure regulating valve, comprising a valve body (1) and a valve seat (2), wherein the inner wall of the valve body (1) is fixedly connected to the valve seat (2), and is characterized in that: The inner wall of the valve body (1) is threadedly connected to the first bolt (3), the outer wall of the first bolt (3) is threadedly connected to the water inlet pipe (4), the side end of the valve body (1) is threadedly connected to the second bolt (5), the outer wall of the second bolt (5) is threadedly connected to the water outlet pipe (6), and a fixing mechanism (7) is connected to the outer wall of the valve body (1); the fixing mechanism (7) includes an upper semi-circular ring (701), the inner wall of the upper semi-circular ring (701) abuts against the valve body (1), the inner wall of the upper semi-circular ring (701) is fixedly connected to a screw rod (702), the outer wall of the screw rod (702) is threadedly connected to an internal thread block (706), the outer wall of the internal thread block (706) abuts against a lower semi-circular ring (703), the lower end of the lower semi-circular ring (703) is fixedly connected to a support seat (704), and the lower end of the support seat (704) is fixedly connected to a rubber pad (705).

2. The high-stability pressure regulating valve according to claim 1, characterized in that: The upper end of the valve body (1) is fixedly connected to a cylinder (8), and an adjusting mechanism (9) is connected to the inner wall of the cylinder (8).

3. The high-stability pressure regulating valve according to claim 2, characterized in that: The adjusting mechanism (9) includes a threaded cover (901), a first air plug (903) and a valve rod (904), the outer wall of the threaded cover (901) is threadedly connected to the cylinder (8), the outer wall of the first air plug (903) is slidably connected to the cylinder (8), the outer wall of the valve rod (904) is slidably connected to the cylinder (8), the lower end of the threaded cover (901) abuts against a spring (902), the lower end of the spring (902) abuts against the first air plug (903), the lower end of the first air plug (903) is fixedly connected to the valve rod (904), and the lower end of the valve rod (904) is fixedly connected to a second air plug (905).

4. The high-stability pressure regulating valve according to claim 3, characterized in that: The inner wall of the support seat (704) is slidably connected to a mounting plate (10), and fixing holes (11) are machined on the inner wall of the mounting plate (10).

5. The high-stability pressure regulating valve according to claim 4, wherein: The lower end of the second air plug (905) abuts against a valve seat (2), and a through hole (12) is machined on the inner wall of the valve seat (2).

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