阅读说明：本技术 一种超高压泵的增压器的单向阀结构 (Check valve structure of supercharger of ultra-high pressure pump ) 是由 徐刚 于 2019-09-30 设计创作，主要内容包括：本发明涉及水切割行业的高压泵设备技术领域,且公开了一种超高压泵的增压器的单向阀结构,包括单向阀体,所述单向阀体的右部连接有压紧螺母,复位弹簧的左端连接有出水提升阀,出水提升阀的左端连接有不完全球体,单向阀体的内部连接有进水提升阀,单向阀体的内部连接有销轴,单向阀体的左端外端面连接有限位环。通过水通过挤压进水提升阀进入第二进水管槽的左部,进而流入到液压缸的内部,出水提升阀的不完全球体密封第一出水管槽；水流流入第二进水管槽中,水流通过挤压进水提升阀与弧形面接触,这一结构达到了将进水止回阀处的面与面配合的结构也换成了线与球面的配合,从而减小了面与面接触磨损的问题。(The invention relates to the technical field of high-pressure pump equipment in the water cutting industry, and discloses a one-way valve structure of a supercharger of an ultra-high pressure pump. Water enters the left part of the second water inlet pipe groove by extruding the water inlet lifting valve and then flows into the hydraulic cylinder, and the incomplete sphere of the water outlet lifting valve seals the first water outlet pipe groove; the water flow flows into the second water inlet pipe groove, the water flow is in contact with the arc-shaped surface through the extruded water inlet lifting valve, and the structure achieves the purpose that the structure of matching the surface and the surface at the position of the water inlet check valve is also changed into the matching of a line and a spherical surface, so that the problem of surface-surface contact wear is reduced.)

1. A check valve structure of a supercharger of an ultra-high pressure pump, comprising a check valve body (1), characterized in that: the right inner side of the one-way valve body (1) is provided with a connecting groove (101), the right inner side of the one-way valve body (1) is connected with the left side of the connecting groove (101) and is provided with a first water outlet pipe groove (102), the right inner side of the one-way valve body (1) is provided with a second water inlet pipe groove (103) below the first water outlet pipe groove (102), the right lower surface of the one-way valve body (1) is provided with a first water inlet pipe groove (104) at the right lower end of the second water inlet pipe groove (103), the right inner side of the one-way valve body (1) is provided with an internal thread (105) at the right end of the connecting groove (101), the right part of the one-way valve body (1) is in threaded connection with a gland nut (2), the inside of the gland nut (2) is provided with a second water outlet pipe groove (201) communicated with the connecting groove (101), the left outer side of the gland nut (2) is provided with an external thread (202), and the left end, the left end fixedly connected with of reset spring (3) goes out water poppet valve (4), rectangular channel (401) corresponding with reset spring (3) are seted up to the right-hand member of going out water poppet valve (4), the left end fixedly connected with incomplete spheroid (402) of going out water poppet valve (4), the inside of check valve body (1) and sliding connection in second inlet pipe groove (103) have inlet poppet valve (5), the inside of check valve body (1) and in the left side fixedly connected with round pin axle (6) of inlet poppet valve (5), the outer terminal surface fixedly connected with spacing ring (7) of the left end of check valve body (1).

2. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: the left end of the connecting groove (101) is provided with a tapered groove (1011).

3. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: an arc-shaped surface (1301) is formed in the middle of the second water inlet pipe groove (103), and the diameter of the second water inlet pipe groove (103) at the left end of the arc-shaped surface (1301) is larger than that of the right end of the second water inlet pipe groove.

4. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: the first water outlet pipe groove (102) and the second water inlet pipe groove (103) are inclined.

5. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: the internal thread (105) and the external thread (202) have a matching thread.

6. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: the compression nut (2) is connected with the return spring (3) in a sliding mode.

7. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: the diameter of the rectangular groove (401) is larger than that of the return spring (3).

8. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: the diameter of the water inlet lifting valve (5) is larger than that of the left pipe groove of the second water inlet pipe groove (103) and smaller than that of the right pipe groove.

9. The check valve structure of a supercharger of an ultra-high pressure pump according to claim 1, characterized in that: the diameter of the pin shaft (6) is adapted to that of the water inlet lifting valve (5).

Technical Field

The invention relates to the technical field of high-pressure pump equipment in the water cutting industry, in particular to a one-way valve structure of a supercharger of an ultra-high pressure pump.

Background

A high pressure pump is a device for pressurizing water that is used in the water cutting industry. The oil pressure of the hydraulic system is converted into the water pressure for cutting through the hydraulic system, the high-pressure pump can pressurize the softened water in a normal state to 400-620MPa, which is equivalent to 4000-6200 atmospheric pressure, the water destructive power under the pressure is very strong, only dozens of seconds are needed for the time from water leakage to abandonment of one high-pressure pipe, the working environment of the ultrahigh pressure ensures that the accessories of the high-pressure pump are always damaged, and once the accessories are damaged, the damaged accessories are completely abandoned in a short time, the maintenance value is lost, and the condition brings huge maintenance cost to users.

The one-way valve structure of the high-pressure pump supercharger is one of the important fittings in the high-pressure pump supercharger, but the water outlet poppet valve, the one-way valve body, the water inlet poppet valve and the sealing element in the currently used one-way valve are all in plane contact sealing, the existing water check valves have too many structures and are in surface-to-surface contact, the friction force is large, when low-pressure water enters equipment, the low-pressure water is not easy to jack the poppet valve, the existing water check valves require that two matched planes are required to be in tight joint and cannot be provided with one thread of unevenness, so that the sealing element is difficult to maintain, the fittings are frequently scrapped, and the original fittings are in ridge contact between the water inlet poppet valve and the sealing element, so that the fittings are very easy to be abraded by high-pressure water, and the fittings can be completely damaged once being not maintained in time, and the one-way valve structure of.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the one-way valve structure of the supercharger of the ultra-high pressure pump, which has the advantages of simple structure, stable performance and high sealing performance and solves the problems of complex structure, unstable performance and poor sealing performance of the one-way valve of the supercharger of the prior high pressure pump.

(II) technical scheme

In order to realize the purposes of simple structure, stable performance and high sealing performance, the invention provides the following technical scheme: a check valve structure of a supercharger of an ultra-high pressure pump comprises a check valve body, wherein a connecting groove is formed in the inner side of the right part of the check valve body, a first water outlet pipe groove is formed in the inner side of the right part of the check valve body and is connected with the left side of the connecting groove, a second water inlet pipe groove is formed in the inner side of the right part of the check valve body and is arranged below the first water outlet pipe groove, a first water inlet pipe groove is formed in the lower surface of the right part of the check valve body and is arranged at the right lower end of the second water inlet pipe groove, an internal thread is formed in the inner side of the right part of the check valve body and is arranged at the right end of the connecting groove, a gland nut is in threaded connection with the right part of the check valve body, a second water outlet pipe groove communicated with the connecting groove is formed in the gland nut, an external thread is formed in the outer side of the left end of the gland nut, a return spring is arranged, the left end of the water outlet lifting valve is fixedly connected with an incomplete sphere, the inside of the one-way valve body and the sliding connection of the second water inlet pipe groove are connected with a water inlet lifting valve, the inside of the one-way valve body and the left side of the water inlet lifting valve are fixedly connected with a pin shaft, and the outer end face of the left end of the one-way valve body is fixedly connected with a limiting ring.

Preferably, the left end of the connecting groove is provided with a tapered groove, so that the tapered groove and the water outlet poppet valve are sealed in a tight linear manner.

Preferably, the middle part of the second water inlet pipe groove is provided with an arc-shaped surface, and the diameter of the second water inlet pipe groove at the left end of the arc-shaped surface is larger than that of the right end, so that the working environment of the water inlet lift valve is ensured.

Preferably, first outlet pipe groove and second inlet pipe groove are the slope form, and the left end of first outlet pipe groove and second inlet pipe groove has guaranteed to communicate with each other with the inside of the less pneumatic cylinder of diameter, and first outlet pipe groove has guaranteed that rivers can flow from gland nut's middle part.

Preferably, the internal thread and the external thread are provided with adaptive threads, so that the sealing of the check valve body and the compression nut is ensured, and the replacement of parts between the check valve body and the compression nut is facilitated.

Preferably, the compression nut is in sliding connection with the return spring, so that the return spring is prevented from being distorted and deformed when the compression nut is screwed with the one-way valve body.

Preferably, the diameter of the rectangular groove is larger than that of the return spring, so that the return spring is ensured to be placed in the rectangular groove.

Preferably, the diameter of the water inlet lifting valve is larger than that of the pipe groove on the left side of the second water inlet pipe groove, and is smaller than that of the pipe groove on the right side, so that the opening and the closing of the lifting valve and the second water inlet pipe groove are ensured.

Preferably, the diameter of the pin shaft is adapted to the diameter of the water inlet poppet valve, so that the pin shaft can block the water inlet poppet valve.

(III) advantageous effects

Compared with the prior art, the invention provides a one-way valve structure of a supercharger of an ultra-high pressure pump, which has the following beneficial effects:

1. the check valve structure of the supercharger of the ultra-high pressure pump moves through the piston in the hydraulic cylinder, when the internal pressure of the hydraulic cylinder is low, low-pressure water enters the right part of the second water inlet pipe groove from the first water inlet pipe groove, the water enters the left part of the second water inlet pipe groove through the extrusion water inlet lifting valve and then flows into the hydraulic cylinder, meanwhile, the incomplete sphere of the water outlet lifting valve seals the first water outlet pipe groove under the action of the spring return spring, the tight sealing of the incomplete sphere and the first water outlet pipe groove is ensured due to the arrangement of the conical groove, when the internal pressure of the hydraulic cylinder is high, the reset spring is extruded through the first water outlet pipe groove in the interior of the hydraulic cylinder, the water flows into the second water outlet pipe groove, meanwhile, the water flows into the second water inlet pipe groove, and the water flows are contacted with the arc-shaped surface through the extrusion water inlet lifting valve, so that the check effect on the internal water flow of the hydraulic cylinder is achieved, this structure has reached and has also changed into the cooperation of line with the sphere with the face of intaking check valve department with the face complex structure to reduced face and face contact and leaded to the great problem of frictional force, further reduction is original accessory intake between poppet valve and the sealing member for the rib contact, leads to being easily by the problem of high pressure water wear.

2. The check valve structure of the supercharger of the ultra-high pressure pump is inclined through the first water outlet pipe groove and the second water inlet pipe groove, the left ends of the first water outlet pipe groove and the second water inlet pipe groove are guaranteed to be communicated with the inside of a hydraulic cylinder with a smaller diameter, and the first water outlet pipe groove guarantees that water flow can flow out of the middle of the compression nut.

3. This check valve structure of booster of super high-pressure pump through the reduction of the original structure of play water poppet valve and the poppet valve that intakes, has changed the line with the cooperation of sphere with face complex structure to it is too much to have solved current water check valve structure, and for face and face contact, frictional force is great, and when low pressure water got into equipment, the difficult problem of back-open poppet valve of low pressure water.

Drawings

FIG. 1 is a front sectional view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the structure of FIG. 1 at A according to the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 1 at B according to the present invention;

FIG. 4 is a front sectional view of the compression nut of the present invention;

fig. 5 is a front sectional view of the water outlet poppet valve according to the present invention.

In the figure: the water inlet valve comprises a check valve body 1, a connecting groove 101, a 1011 conical groove, a 102 first water outlet pipe groove, a 103 second water inlet pipe groove, a 1301 arc-shaped surface, a 104 first water inlet pipe groove, a 105 internal thread, a 2 gland nut, a 201 second water outlet pipe groove, a 202 external thread, a 3 reset spring, a 4 water outlet poppet valve, a 401 rectangular groove, a 402 incomplete sphere, a 5 water inlet poppet valve, a 6 pin shaft and a 7 limiting ring.

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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a check valve structure of a supercharger of an ultra-high pressure pump includes a check valve body 1, a connection groove 101 is formed at an inner side of a right portion of the check valve body 1, a first water outlet pipe groove 102 is formed at an inner side of the right portion of the check valve body 1 and connected to a left side of the connection groove 101, a second water inlet pipe groove 103 is formed at an inner side of the right portion of the check valve body 1 and below the first water outlet pipe groove 102, a first water inlet pipe groove 104 is formed at a lower right end of the second water inlet pipe groove 103 and on a lower right surface of the check valve body 1, an internal thread 105 is formed at a right end of the connection groove 101 and on an inner side of the right portion of the check valve body 1, a compression nut 2 is threadedly connected to the right portion of the check valve body 1, a second water outlet pipe groove 201 communicated with the connection groove 101 is formed inside the compression nut 2, an external thread 202 is formed at an outer side of a left end of the compression nut 2, the, the left ends of the first water outlet pipe groove 102 and the second water inlet pipe groove 103 are ensured to be communicated with the inside of the hydraulic cylinder with the smaller diameter, the first water outlet pipe groove 102 ensures that water flow can flow out from the middle of the compression nut 2, the internal thread 105 and the external thread 202 are provided with adaptive threads, so that the sealing of the one-way valve body 1 and the compression nut 2 is ensured, and the replacement of parts between the one-way valve body 1 and the compression nut 2 is facilitated. The left end of gland nut 2 is provided with reset spring 3, and gland nut 2 and 3 sliding connection of reset spring to when guaranteeing gland nut 2 and the check valve body 1 spiral, reset spring 3 is not warp by the distortion. The left end fixedly connected with of reset spring 3 goes out water poppet valve 4, and the left end of spread groove 101 has seted up the tapered slot 1011 to guarantee that the tight line type of tapered slot 1011 and play water poppet valve 4 is sealed. Rectangular channel 401 corresponding with reset spring 3 has been seted up to the right-hand member of play water poppet valve 4, and the left end fixedly connected with incomplete spheroid 402 of play water poppet valve 4, and the diameter of rectangular channel 401 is greater than reset spring 3's diameter to guarantee that reset spring 3 places in rectangular channel 401.

Check valve body 1's inside and sliding connection at second inlet pipe groove 103 has inlet poppet valve 5, arcwall face 1301 has been seted up at the middle part of second inlet pipe groove 103, second inlet pipe groove 103 and the diameter at the left end of arcwall face 1301 is greater than the right-hand member diameter, thereby inlet poppet valve 5's operational environment has been guaranteed, inlet poppet valve 5's the diameter of the left side pipe groove of second inlet pipe groove 103 that is greater than, and it is less than the right side pipe groove diameter, thereby guaranteed opening and closing of poppet valve 5 and second inlet pipe groove 103. Inside and at the left side fixedly connected with round pin axle 6 of intaking poppet valve 5 of check valve body 1, the diameter of round pin axle 6 suits with the diameter of intaking poppet valve 5 to guarantee that round pin axle 6 can block intaking poppet valve 5. The outer end face of the left end of the one-way valve body 1 is fixedly connected with a limiting ring 7.

The working principle is as follows: the one-way valve structure of the supercharger of the ultra-high pressure pump moves through a piston in the hydraulic cylinder when the booster works, because the interior of the hydraulic cylinder is communicated with the first water outlet pipe groove 102 and the second water inlet pipe groove 103, when the internal pressure of the hydraulic cylinder is low, low-pressure water enters the right part of the second water inlet pipe groove 103 from the first water inlet pipe groove 104, the water enters the left part of the second water inlet pipe groove 103 through the extrusion water inlet lifting valve 5 and then flows into the interior of the hydraulic cylinder, meanwhile, the incomplete sphere 402 of the water outlet lifting valve 4 seals the first water outlet pipe groove 102 under the action of the spring return spring 3, because the conical groove 1011 is arranged, the tight sealing of the incomplete sphere 402 and the first water outlet pipe groove 102 is ensured, when the internal pressure of the hydraulic cylinder is high, the reset spring 3 is extruded through the first water outlet pipe groove 102 in the interior of the hydraulic cylinder, water flows into the second water outlet pipe groove 201, and water flows into the second water inlet pipe groove 103 at the same time, rivers contact with arcwall face 1301 through squeezing the water inlet lift valve 5 to reach the non return effect to the inside rivers of pneumatic cylinder, this structure has reached the face of the check valve department of intaking and has also changed line and spherical cooperation with face complex structure, thereby has reduced the face and has leaded to the great problem of frictional force with face contact, and the original accessory of further reduction is intake between lift valve and the sealing member for the rib contact, is very easily by the problem of high pressure water wear. For the slope form through first outlet pipe groove 102 and second inlet pipe groove 103, the left end of first outlet pipe groove 102 and second inlet pipe groove 103 has guaranteed to communicate with each other with the inside of the less pneumatic cylinder of diameter, and first outlet pipe groove 102 has guaranteed that rivers can flow from gland nut 2's middle part.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.