阅读说明：本技术 一种调压阀 (Pressure regulating valve ) 是由 赵凯 于 2020-05-08 设计创作，主要内容包括：本发明公开了一种调压阀,包括阀体、调节螺钉和调节弹簧,所述阀体的底部设置有固定座,所述阀体的内部设置有内腔,所述阀体的顶部设置有圆形调节装置,所述圆形调节装置的底部设置有固定盖,所述固定盖的内部设置有固定块,所述固定块的两侧设置有调节弹簧,所述固定盖的底部设置有膜片,所述膜片的下部设置有脉冲阀,所述脉冲阀的下部设置有阀盖,所述阀盖的下部设置有阀体,所述阀体的内部设置有活塞装置,所述活塞装置的下部设置有主阀,所述阀体的下部设置有底阀盖。本发明具有结构新颖、设计巧妙、方便使用的优点,降低了加工误差的影响,提高了密封性能,降低了加工难度,延长使用寿命,具有较高的社会使用价值和应用前景。(The invention discloses a pressure regulating valve which comprises a valve body, a regulating screw and a regulating spring, wherein a fixed seat is arranged at the bottom of the valve body, an inner cavity is arranged inside the valve body, a circular regulating device is arranged at the top of the valve body, a fixed cover is arranged at the bottom of the circular regulating device, a fixed block is arranged inside the fixed cover, the regulating spring is arranged on two sides of the fixed block, a diaphragm is arranged at the bottom of the fixed cover, a pulse valve is arranged at the lower part of the diaphragm, a valve cover is arranged at the lower part of the pulse valve, the valve body is arranged at the lower part of the valve cover, a piston device is arranged inside the valve body, a main valve is arranged at the lower part of the piston device. The invention has the advantages of novel structure, ingenious design and convenient use, reduces the influence of processing errors, improves the sealing performance, reduces the processing difficulty, prolongs the service life and has higher social use value and application prospect.)

1. The pressure regulating valve comprises a valve body (1), a regulating screw (2) and a regulating spring (3), and is characterized in that a fixing seat (4) is arranged at the bottom of the valve body (1), an inner cavity (5) is arranged inside the valve body (1), a circular regulating device (6) is arranged at the top of the valve body (1), the regulating screw (2) is arranged in the middle of the circular regulating device (6), a fixing cover (7) is arranged at the bottom of the circular regulating device (6), a fixing block (8) is arranged inside the fixing cover (7), the regulating spring (3) is arranged on two sides of the fixing block (8), through holes are formed in two sides of the fixing cover (7), bolts are arranged on the through holes, a diaphragm (9) is arranged at the bottom of the fixing cover (7), and a pulse valve (10) is arranged at the lower part of the diaphragm (9), the pulse valve is characterized in that a valve cover (11) is arranged on the lower portion of the pulse valve (10), a valve body (1) is arranged on the lower portion of the valve cover (11), a piston device (12) is arranged inside the valve body (1), a piston ring (13) is arranged on the piston device (12), a main valve (16) is arranged on the lower portion of the piston device (12), a main valve spring (14) is arranged on the lower portion of the main valve (16), and a bottom valve cover (15) is arranged on the lower portion of the valve body (1).

2. A pressure regulating valve according to claim 1, characterized in that said regulating spring (3) is provided in several numbers, said several regulating springs (3) being arranged inside a stationary cover (7), respectively.

3. A pressure regulating valve according to claim 1, characterized in that said valve body (1) and said bottom valve cover (15) are fixedly connected by means of bolts, and the interior of said valve body (1) and the interior of said bottom valve cover (15) are mutually communicated.

4. A pressure regulating valve according to claim 1, characterized in that said valve cover (11) is fixedly connected with the valve body (1) through bolts, and a sealing device is arranged between said valve cover (11) and the valve body (1) and used for sealing the gap between the valve cover (11) and the valve body (1).

Technical Field

The invention relates to the technical field of fluid control, in particular to a pressure regulating valve.

Background

Pressure regulating valves are often required to be arranged in the hydraulic system to regulate the pressure of fluid in the system, and the pressure of the fluid can meet the operation requirements of different actuating mechanisms by arranging multi-stage oil ways. Taking a hydraulic system used in a large-scale device or an engineering machine as an example, an actuator that directly applies work to a load in the large-scale device or the engineering machine needs to be under relatively high working oil pressure, and actuators of auxiliary systems such as a cooling system, a pilot control system, a brake system, and the like often need to be under relatively low working oil pressure. In the hydraulic system, a pressure regulating valve is required to be arranged in a hydraulic integrated valve block to form a multi-stage pressure regulating circuit with different working oil pressures so as to match different requirements of different types of execution mechanisms on the working oil pressures. The pressure regulating valve is installed in the pressure equipment, and when the pressure in the equipment is larger than a certain numerical value, the pressure regulating valve is opened, and the medium flows back to realize pressure relief. The quality problem of oil leak appears easily in current air-vent valve, and the leakproofness is low simultaneously, and life is short, and machining error is big, and sealing performance is low, and the processing degree of difficulty coefficient is big, to relevant technical problem, has not proposed effectual solution at present.

Disclosure of Invention

The present invention is directed to a pressure regulating valve, which overcomes the above-mentioned problems of the related art.

The technical scheme of the invention is realized as follows:

a pressure regulating valve comprises a valve body 1, a regulating screw 2 and a regulating spring 3, wherein a fixed seat 4 is arranged at the bottom of the valve body 1, an inner cavity 5 is arranged in the valve body 1, a circular regulating device 6 is arranged at the top of the valve body 1, the regulating screw 2 is arranged in the middle of the circular regulating device 6, a fixed cover 7 is arranged at the bottom of the circular regulating device 6, a fixed block 8 is arranged in the fixed cover 7, the regulating spring 3 is arranged on two sides of the fixed block 8, through holes are arranged on two sides of the fixed cover 7, bolts are arranged on the through holes, a diaphragm 9 is arranged at the bottom of the fixed cover 7, a pulse valve 10 is arranged at the lower part of the diaphragm 9, a valve cover 11 is arranged at the lower part of the pulse valve 10, the valve body 1 is arranged at the lower part of the valve cover 11, a piston device 12 is arranged in the valve, a main valve 16 is provided at a lower portion of the piston device 12, a main valve spring 14 is provided at a lower portion of the main valve 16, and a bottom valve cover 15 is provided at a lower portion of the valve body 1.

Further, the adjusting springs 3 are provided with a plurality of adjusting springs 3, and the adjusting springs 3 are respectively arranged inside the fixing cover 7.

Further, the valve body 1 is fixedly connected with the bottom valve cover 15 through bolts, and the inside of the valve body 1 is communicated with the inside of the bottom valve cover 15.

Further, the valve cover 11 is fixedly connected with the valve body 1 through a bolt, a sealing device is arranged between the valve cover 11 and the valve body 1, and the sealing device is used for sealing a gap between the valve cover 11 and the valve body 1.

The invention has the beneficial effects that: the pressure regulating valve provided by the invention has the advantages of novel structure, ingenious design and convenience in use, reduces the cost, improves the stability and reliability, solves the problem that internal air cannot be exhausted after an oil pump is kept still for a long time, solves the problem of oil leakage caused by poor sealing performance of a valve body due to machining errors of the pressure regulating valve in the prior art, reduces the influence of the machining errors, improves the sealing performance, reduces the machining difficulty, and has higher social use value and application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an overall structural schematic diagram of a pressure regulating valve according to an embodiment of the present invention;

1. a valve body; 2. an adjusting screw; 3. adjusting the spring; 4. a fixed seat; 5. an inner cavity; 6. a circular adjusting device; 7. a fixed cover; 8. a fixed block; 9. a membrane; 10. a pulse valve; 11. a valve cover; 12. a piston device; 13. a piston ring; 14. a main valve spring; 15. a bottom valve cover; 16. a main valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

According to an embodiment of the present invention, a pressure regulating valve is provided.

As shown in fig. 1, the pressure regulating valve according to the embodiment of the present invention includes a valve body 1, an adjusting screw 2 and an adjusting spring 3, wherein a fixed seat 4 is disposed at the bottom of the valve body 1, an inner cavity 5 is disposed inside the valve body 1, a circular adjusting device 6 is disposed at the top of the valve body 1, the adjusting screw 2 is disposed at the middle of the circular adjusting device 6, a fixed cover 7 is disposed at the bottom of the circular adjusting device 6, a fixed block 8 is disposed inside the fixed cover 7, the adjusting spring 3 is disposed on two sides of the fixed block 8, through holes are disposed on two sides of the fixed cover 7, bolts are disposed on the through holes, a diaphragm 9 is disposed at the bottom of the fixed cover 7, a pulse valve 10 is disposed at the lower part of the diaphragm 9, a valve cover 11 is disposed at the lower part of the pulse valve 10, the valve body 1 is disposed at the lower part of the, the piston device 12 is provided with a piston ring 13, the lower part of the piston device 12 is provided with a main valve 16, the lower part of the main valve 16 is provided with a main valve spring 14, the lower part of the valve body 1 is provided with a bottom valve cover 15, the adjusting springs 3 are provided with a plurality of adjusting springs 3 respectively arranged in the fixed cover 7, the valve body 1 and the bottom valve cover 15 are fixedly connected through bolts, the interior of the valve body 1 and the interior of the bottom valve cover 15 are communicated with each other, the valve cover 11 and the valve body 1 are fixedly connected through bolts, a sealing device is arranged between the valve cover 11 and the valve body 1 and used for sealing a gap between the valve cover 11 and the valve body 1.

By means of the technical scheme, the pressure regulating valve comprises a valve body 1, a regulating screw 2 and a regulating spring 3, wherein a fixed seat 4 is arranged at the bottom of the valve body 1, an inner cavity 5 is arranged inside the valve body 1, a circular regulating device 6 is arranged at the top of the valve body 1, the regulating screw 2 is arranged in the middle of the circular regulating device 6, a fixed cover 7 is arranged at the bottom of the circular regulating device 6, a fixed block 8 is arranged inside the fixed cover 7, the regulating spring 3 is arranged on two sides of the fixed block 8, through holes are arranged on two sides of the fixed cover 7, bolts are arranged on the through holes, a diaphragm 9 is arranged at the bottom of the fixed cover 7, a pulse valve 10 is arranged at the lower part of the diaphragm 9, a valve cover 11 is arranged at the lower part of the pulse valve 10, the valve body 1 is arranged at the lower part of the valve cover, the piston device 12 is provided with a piston ring 13, the lower part of the piston device 12 is provided with a main valve 16, the lower part of the main valve 16 is provided with a main valve spring 14, the lower part of the valve body 1 is provided with a bottom valve cover 15, the adjusting springs 3 are provided with a plurality of adjusting springs 3 respectively arranged in the fixed cover 7, the valve body 1 and the bottom valve cover 15 are fixedly connected through bolts, the interior of the valve body 1 and the interior of the bottom valve cover 15 are communicated with each other, the valve cover 11 and the valve body 1 are fixedly connected through bolts, a sealing device is arranged between the valve cover 11 and the valve body 1 and used for sealing a gap between the valve cover 11 and the valve body 1. The invention has the advantages of novel structure, ingenious design and convenient use, reduces the cost, improves the stability and the reliability, solves the problem that the internal air cannot be exhausted after the oil pump is kept still for a long time, solves the problem of oil leakage caused by poor sealing performance of the valve body due to processing errors of the pressure regulating valve in the prior art, reduces the influence of the processing errors, improves the sealing performance, reduces the processing difficulty, and has higher social use value and application prospect.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.