阅读说明：本技术 一种压力可调高低压转换阀体 (Pressure-adjustable high-low pressure conversion valve body ) 是由 王海峰 王海瑞 王刚 于 2020-07-11 设计创作，主要内容包括：本发明的主要内容是提供一种压力可调高低压转换阀体,通过阀体的往复运动实现高压和低压的相互转换,具体的说通过转换阀体内的柱塞阀芯的位移移动控制压力转换,柱塞阀芯的位移移动带动密封阀盖进行相对运动,从而产生了高压密封效果,确保了在进行高压动作时高压可以在惟一通过进行输出,提供高压动能的利用率,该结构阀体可以有效应用在机械扩孔装置上进行应用,通过低压进行孔内实施钻进,当进行高压转换时利用高压推动扩孔装置进行运动实现孔内造穴。(The invention mainly provides a pressure-adjustable high-low pressure conversion valve body, which realizes the mutual conversion of high pressure and low pressure through the reciprocating motion of the valve body, particularly controls the pressure conversion through the displacement movement of a plunger valve core in the conversion valve body, and drives a sealing valve cover to move relatively through the displacement movement of the plunger valve core, thereby generating a high-pressure sealing effect, ensuring that the high pressure can be output only through outputting when high-pressure action is carried out, providing the utilization rate of high-pressure kinetic energy.)

1. The high-low pressure conversion valve body with the adjustable pressure is characterized in that the high pressure and the low pressure are converted mutually through the reciprocating motion of a plunger valve core in the valve body, the pressure conversion is controlled through the displacement movement of the plunger valve core in the conversion valve body, the relative motion of a sealing valve cover is driven through the displacement movement of the plunger valve core, so that the high-pressure sealing effect is generated, and the high pressure can be output only through the output when the high pressure action is carried out.

2. The pressure adjustable high-low pressure switching valve body according to claim 1, wherein the low pressure action is: the sealing valve cover is connected with the plunger valve core, low-pressure water flows out through the low-pressure water outlet hole, the sealing valve cover and the plunger valve core are in a relative static state, and the sealing step in the plunger valve core and the conversion valve body are sealed through a valve body sealing ring.

3. The pressure adjustable high-low pressure conversion valve body according to claim 1, characterized in that the high pressure is used as the high pressure; the sealing valve cover is connected with the plunger valve core, the plunger valve core drives the sealing valve cover to move towards the direction of the reset spring, and when the plunger valve core moves to a certain position, a valve cover sealing ring in the sealing valve cover is sealed with the conversion valve body, so that the low-pressure channel is blocked, and the plunger valve core is pushed by high-pressure water to move.

Technical Field

The invention relates to a pressure-adjustable high-low pressure conversion valve body which is mainly applied to a workpiece needing high-low pressure reversing action, and is mainly applied to high-low pressure hydraulic reversing in a high-pressure mechanical hole-expanding device in the field of coal mine gas permeability increasing.

Background

In the field of coal mines, due to the continuous improvement of a gas permeability-increasing technology in recent years, various improvements and technological improvements are made on coal mining with many mines following the concept of safe production, for example: in order to achieve the maximum extraction efficiency, a hole is punched and made to achieve a coal seam extraction cavity, so that the extraction efficiency is improved.

The mechanical hole enlarging device has advanced implementation significance and value to a certain extent as a common coal seam hole making means used at present, but through multiple research and development, the greatest defect exists in the existing mechanical hole enlarging device is that the mechanical hole enlarging device has great difficulty in pressure conversion, and although various manufacturers or institutions try to improve different structures, the effect is slight, the pressure conversion has the characteristic of high danger, so that the pressure conversion device with high reliability is provided at present.

Disclosure of Invention

The invention provides a pressure-adjustable high-low pressure conversion valve body, which realizes the mutual conversion of high pressure and low pressure through the reciprocating motion of the valve body, particularly controls the pressure conversion through the displacement movement of a plunger valve core in the conversion valve body, and drives a sealing valve cover to move relatively through the displacement movement of the plunger valve core, thereby generating a high-pressure sealing effect, ensuring that high pressure can be output only through outputting when high pressure acts, providing the utilization rate of high-pressure kinetic energy.

In summary, the switching valve body performs pressure switching displacement movement through the plunger valve core, the plunger valve core is of a multi-step cylindrical structure, one section of the plunger valve core is connected with the sealing valve cover and is provided with the sealing step, and the sealing effect is guaranteed.

In summary, one end of the valve body of the switching valve body is provided with a sealing step which is in a sealing relationship with the sealing valve cover, the inside of the switching valve body is provided with an inner hole seal which is in a sealing relationship with the plunger valve core, and a sealing ring which achieves a high-pressure sealing effect is arranged at the inner hole seal position.

In summary, the sealing valve cover is a sealing structure for performing low-pressure sealing when high pressure is generated, the sealing valve cover is in a bowl-shaped structure, one end of the sealing valve cover is provided with an inner hole connected with the plunger valve element, a valve cover water outlet hole is circumferentially arranged by taking the inner hole as a center, a sealing ring with a high-pressure sealing effect is arranged inside the sealing valve cover, and when low pressure is passed, the sealing valve cover is in a static state, and the valve cover water outlet hole can perform low-pressure water outflow; when high pressure is reached, the sealing valve cover moves to generate a sealing relation with the valve body to perform high-pressure sealing.

In conclusion, the conversion valve body is of an adjustable structure, one side of the valve body is provided with an adjusting plug connected with the valve body, the surface of the adjusting plug is a thread, a plunger valve core guide hole is formed in the adjusting plug, and a high-pressure water outlet hole is formed around the plunger valve core guide hole as the center.

The reset spring is arranged in the conversion valve body, the elastic force generated by the reset spring can be adjusted through the adjusting plug, and then the force is applied to the plunger valve core, so that the pressure conversion action obtained by different pressure values is realized.

Description of the drawings:

FIG. 1 is a sectional view of a pressure-adjustable high-low pressure switching valve body

FIG. 2 is a sectional view of an adjusting plug of a pressure adjustable high-low pressure switching valve body

FIG. 3 is a front view of a plug valve core of an adjusting plug of a pressure adjustable high-low pressure switching valve body

FIG. 4 is a sectional view of the seal valve cover of the adjusting plug of the pressure adjustable high-low pressure switching valve body

The valve comprises a valve body, a regulating plug, a conversion valve body, a plunger valve core, a reset spring, a sealing valve cover, a locking gasket, a nut, a valve cover sealing ring and a valve body sealing ring, wherein the valve body is 1-the regulating plug, the conversion valve body is 2-the plunger valve core is 3-the plunger valve core, the reset spring is 4-the sealing valve cover is 5-the locking gasket is

Wherein 101-adjusting screw thread, 102-high pressure water outlet hole, 103-plunger valve core guide hole

Wherein 301-valve core guide post, 302-limit table, 303-sealing step, 204-fastening thread

501-low pressure apopore, 502-fastening inner hole, 503-seal groove.

Detailed Description

Reference is made to the figures contained in the accompanying drawings and in which is shown, by way of illustration and specific application, the following:

according to the figure, an adjusting plug 1 is arranged inside a conversion valve body 2 in the pressure-adjustable high-low pressure conversion valve body, the adjusting plug 1 is assembled with a valve core guide post 301 in a plunger valve core 3, a return spring 4 is arranged on the valve core guide post 301 of the plunger valve core 3, and a sealing valve cover 5 is arranged at the other end of the plunger valve core 3 and is locked and fixed through a locking gasket 6 and a nut 7.

Wherein, the inside center of adjusting plug 1 is provided with plunger case guiding hole 103, is being provided with a plurality of high-pressure apopores 102 with plunger case guiding hole 103 as the center, and the surface of adjusting plug 1 is provided with adjusting screw thread 101.

Wherein, one end of the plunger valve core 3 is provided with a valve core guide post 301, the other end is provided with a fastening thread, and the middle is sequentially provided with a limit platform 302 and a sealing step 303.

A fastening inner hole 502 is formed in the center of the sealing valve cover 5, a plurality of low-pressure water outlet holes 501 are formed in the center of the fastening inner hole 502, and a sealing groove 503 is formed in the sealing valve cover 5.

The low-pressure action is as follows: the sealing valve cover 5 is connected with the plunger valve core 3, low-pressure water is discharged through the low-pressure water outlet hole 501, the sealing valve cover 5 and the plunger valve core 3 are in a relative static state, and the sealing step 303 in the plunger valve core 3 and the conversion valve body 2 are sealed through the valve body sealing ring 9.

The high pressure action is used as; the sealing valve cover 5 is connected with the plunger valve core 3, the plunger valve core 3 drives the sealing valve cover 5 to move towards the direction of the reset spring 4, and when the sealing valve cover 5 moves to a certain position, the valve cover sealing ring 8 in the sealing valve cover 5 is sealed with the conversion valve body 2, so that a low-pressure channel is blocked, and high-pressure water pushes the plunger valve core 3 to move.

Any structural changes made under the teaching of the present invention, which are similar or similar to the technical solutions of the present invention, fall within the protection scope of the present invention.

The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.