CN109113675B

CN109113675B - High-low voltage conversion slotting device

Info

Publication number: CN109113675B
Application number: CN201811304257.0A
Authority: CN
Inventors: 程伟; 王允峰; 李光永; 王宗禄; 赵斌; 刘文强; 张积伟; 张翔
Original assignee: Shandong Xiangde Electromechanical Co ltd
Current assignee: Shandong Xiangde Electromechanical Co ltd
Priority date: 2018-11-03
Filing date: 2018-11-03
Publication date: 2023-12-19
Anticipated expiration: 2038-11-03
Also published as: CN109113675A

Abstract

The utility model provides a high-low pressure conversion slit ware, including the high-low pressure conversion slit ware body that has water sword cover shell (1) and slide core (3), set up between water sword cover shell (1) and slide core (3) and be used for producing nitrogen spring (5) of slide core (3) removal interval, through high-low pressure conversion slit ware body, realize high-low pressure conversion slit, through nitrogen spring (5), drive slide core (3) removal, make the casing of nitrogen spring (5) bear high-pressure rivers and strike, no longer directly use the spring to bear high-pressure rivers and strike, consequently, the reliability of high-low pressure conversion slit ware has been improved.

Description

High-low voltage conversion slotting device

Technical Field

The invention relates to a high-low pressure conversion slit cutter, in particular to a high-low pressure conversion slit cutter suitable for coal mine and underground operation.

Background

The hydraulic cutting permeability increasing is realized by cutting through high-pressure jet, the diameter of a drilled hole is enlarged, the exposed area and the pressure relief range of a coal seam are increased, the air permeability of the coal seam is improved, the pumping influence radius of the drilled hole is increased, the pumping gas quantity of the coal seam is improved, test results show that the hydraulic reaming effect can be achieved through a reaming jet device, but the reaming jet device is adopted to carry out flaring relatively, a drill rod is required to be withdrawn after drilling, reaming equipment is modified, so that the construction difficulty engineering quantity is increased, the high-low pressure conversion slotting machine is an important mine tool, the existing spring type high-low pressure conversion slotting machine is complex in structure and complex in processing, the spring is easy to damage in the use process, the operation is difficult when the wearing parts are maintained and replaced, the residual large solid particles are easy to block a filter screen when the water flow passes through the slotting machine, and the slotting machine cannot normally work, and the reliability of the high-low pressure conversion slotting machine is influenced.

Based on the technical problem, technical characteristics and technical effects existing in technical books of technical bottoms of the applicant in 2018, 7, 15 and the background technology, the technical scheme of the invention is made.

Disclosure of Invention

The object of the invention is a high-low voltage conversion slit cutter.

In order to overcome the technical defects, the invention aims to provide a high-low voltage conversion slit cutter, so that the reliability of the high-low voltage conversion slit cutter is improved.

In order to achieve the above purpose, the invention adopts the following technical scheme: the high-low pressure conversion slot cutter comprises a high-low pressure conversion slot cutter body with a water knife shell and a sliding core, and a nitrogen spring which is arranged between the water knife shell and the sliding core and is used for generating a sliding core moving section.

Because the nitrogen spring and the high-low pressure conversion slotting machine body are designed, high-low pressure conversion slotting is realized through the high-low pressure conversion slotting machine body, the sliding core is driven to move through the nitrogen spring, the shell of the nitrogen spring bears high-pressure water flow impact, and the spring is not directly used for bearing the high-pressure water flow impact any more, so that the reliability of the high-low pressure conversion slotting machine is improved.

The invention designs that the nitrogen spring with compressed intermediate medium and the high-low pressure conversion slit cutter body for the main body are mutually connected in a mode that the compressed intermediate medium generates restoring force.

The invention designs a nitrogen spring which is connected with a high-low pressure conversion slit cutter body in a mode that compressed gas generates restoring force.

The invention designs a high-low pressure conversion slit cutter body which further comprises a water knife, a connector, a backwater prevention spring, backwater prevention baffles and a top sleeve.

The nitrogen gas water jet knife is characterized by further comprising a first accessory device, wherein the first accessory device is arranged between the nitrogen gas spring and the water jet knife shell, the first accessory device comprises a limiting sleeve ring and a spring seat, and the limiting sleeve ring and the spring seat are fixedly distributed in a wrapping mode.

The invention designs a water jet knife which also comprises a second accessory device, wherein the second accessory device is connected with the water jet knife casing, the second accessory device comprises a filter screen and a hole bottom crusher, and the filter screen and the hole bottom crusher are distributed in an accelerating and dispersing way.

The invention also comprises a third accessory device which is arranged to be connected with the high-low voltage conversion slot cutter body, and the third accessory device is arranged as a guide rail filter screen.

The invention designs that a water knife is arranged at the side surface part of a water knife shell, a hole bottom crusher is arranged at one end of the water knife shell, a joint is arranged at the other end of the water knife shell, a guide rail filter screen and an anti-return water baffle are arranged in the joint, an anti-return water spring is arranged between the guide rail filter screen and the anti-return water baffle, the filter screen is arranged on the hole bottom crusher, a limit sleeve ring is arranged on a spring seat, a nitrogen spring is arranged between the limit sleeve ring and the spring seat, a slide core, the limit sleeve ring, the nitrogen spring, the spring seat, the filter screen and the hole bottom crusher are respectively arranged in the water knife shell, a slide core is arranged between the filter screen and the nitrogen spring, a top sleeve is arranged between the spring seat and the anti-return water baffle, and the outer side surface part of the slide core is in contact connection with the inner end of the water knife.

The invention designs that a through hole body is arranged in a tube shell of a water knife shell, a first radial hole body and a second radial hole body are arranged on the tube shell, a transverse section hole body is arranged in the tube shell and is distributed at intervals along the periphery of the through hole body, the through hole body is arranged to comprise a through hole section I, a through hole section II, a through hole section III, a through hole section IV and a through hole section V, the through hole section I is arranged in one end head of the water knife shell, the through hole section V is arranged in the other end head of the water knife shell, the first radial hole body is communicated with the through hole section III, the second radial hole body is communicated with the through hole section IV, one port of the transverse section hole body is communicated with the second radial hole body, the other port of the transverse section hole body is communicated with the through hole section V, the first radial hole body is connected with a water knife, the through hole section II is respectively connected with a filter screen and a hole bottom pulverizer, the through hole section III is respectively connected with a sliding core, the through hole section III is connected with a limit collar, a nitrogen spring seat and a top collar, the through hole section V is arranged in the other end head of the water knife shell, the through hole section V is communicated with the second radial hole body is arranged to the first radial hole body, the through hole body is communicated with the second radial hole body is arranged to the first radial hole body, the first radial hole body is communicated with the through hole body is arranged in a radial hole body, and is arranged to be in a radial opening shape, and is arranged in a radial shape corresponding to the through hole body.

The invention designs that the through hole section I is arranged as a conical hole body, the taper of the through hole section I is 9-11 degrees, the through hole section V is arranged as a threaded hole body, and the through hole section III and the through hole section IV are distributed in a shrinkage hole mode with the through hole section II and the through hole section V.

The invention designs that an injection hole section is arranged at the outer end head of a cylinder of a water knife, an injection hole section is arranged at the inner end head of the cylinder, an expansion hole section is arranged at the middle part of the cylinder, the ports of the expansion hole section are respectively communicated with the injection hole section and the injection hole section, the cylinder is a cross-shaped rod body, the inner end head of the cylinder is in threaded connection with a water knife shell, the injection hole section and the injection hole section are arranged as cylinders Kong Zhuangti, the expansion hole section is a conical hole body, and the taper of the expansion hole section is 12-14 degrees.

The invention designs that the hole bottom pulverizer comprises a supporting shaft part, a string shaft part, a first ring part, a second ring part and a blade part, wherein the blade part is connected with the side surface part of the supporting shaft part, the left end of the blade part is connected with the second ring part, the right end of the blade part is connected with the first ring part, the string shaft part is connected with the right end of the supporting shaft part, the second ring part is connected with a water jet knife casing, the string shaft part is connected with a filter screen through a shaft clamp, the first ring part is connected with the filter screen in a contact mode, the supporting shaft part and the string shaft part are respectively in a round rod shape, the first ring part and the second ring part are in a round ring shape, and the blade part is in a spiral line spiral piece.

The invention designs that a series connection hole body is arranged at the middle part of a net piece part of a filter screen, a filter hole body is arranged on the net piece part, the filter hole bodies are distributed around the series connection hole body, the series connection hole body is connected with a hole bottom crusher, the periphery part of the net piece part is connected with the hole bottom crusher in a contact way, the net piece part is a circular plate body, and the filter hole body and the series connection hole body are respectively arranged as circular hole bodies.

The invention designs that a third radial hole body is arranged on an expansion end head body of a core shell part of a sliding core and a transverse hole body is arranged in the core shell part, one end opening of the transverse hole body is arranged at the end head of a contraction end head body of the core shell part, one end opening of the transverse hole body is communicated with the third radial hole body, a sinking groove body is arranged at the end head of the expansion end head body, an annular groove body is arranged on the outer side face part of the expansion end head body, the expansion end head body is connected with a water knife shell, the contraction end head body is connected with a water knife, the annular groove body is connected with a sealing ring connected with the water knife shell, the sinking groove body is connected with a nitrogen spring, the end head of the contraction end head body is connected with a filter screen in a clearance mode, the third radial hole body is distributed corresponding to the water knife shell, the core part is arranged in a T-shaped rod shape, the contraction end head body and the expansion end head body are distributed in a step mode, the transverse hole body is arranged into a round hole shape, the annular groove body is arranged into a U-shaped groove body, and the third radial hole body and the sinking groove body is arranged into a round blind hole body.

The invention designs that the limit lantern ring is arranged as a circular disk-shaped body and is connected with the nitrogen spring in series, and the limit lantern ring is connected with the spring seat in a threaded mode.

The invention designs that the spring seat is arranged into a box-shaped body and is connected with the nitrogen spring in a containing way, the opening part of the spring seat is connected with the limit lantern ring in a threaded way, and the spring seat is connected with the water knife sleeve in an embedded way.

According to the nitrogen spring, the shell part of the nitrogen spring is connected with the spring seat through the limiting collar, the telescopic head part of the nitrogen spring is connected with the limiting collar in series, and the telescopic head part of the nitrogen spring is connected with the sliding core in a contact mode.

The invention designs that the joint comprises a column part, a disc part and a cone part, wherein the end head of the disc part is respectively connected with the column part and the cone part, a first transverse hole section, a second transverse hole section, a third transverse hole section and a fourth transverse hole section are respectively arranged in the joint, the first transverse hole section, the second transverse hole section, the third transverse hole section and the fourth transverse hole section are distributed in a manner of mutually communicated stepped holes, the first transverse hole section is arranged at the end head of the column part, the fourth transverse hole section is arranged at the end head of the cone part, the first transverse hole section is connected with a top sleeve, the second transverse hole section is connected with a backwater prevention baffle, the third transverse hole section is connected with a guide rail filter screen and a backwater prevention spring, the column part is connected with a water knife sleeve in a threaded manner, the column part is provided with a threaded circular rod-shaped body, the disc part is provided with a circular flange body, and the first transverse hole section, the second transverse hole section, the third transverse hole section and the fourth transverse hole section are respectively provided with a circular cylindrical hole body.

According to the invention, a cross-shaped hole is formed in the top sleeve, the top sleeve is a T-shaped rod-shaped body, the flange body of the top sleeve is connected with the connector, the vertical hole end of the cross-shaped hole is arranged between the connector and the water jet knife sleeve shell, and the left end of the top sleeve is connected with the spring seat in a contact mode.

The invention designs that the backwater prevention baffle comprises a plate part, a rod part and a rod part, wherein the end heads of the rod part are respectively connected with the plate part and the rod part, the periphery of the plate part is provided with a leak hole body, the plate part is connected with a backwater prevention spring in a contact way, the rod part is connected with the backwater prevention spring in a clamping way, the rod part is connected with the backwater prevention spring in a series way, the plate part is provided with a circular sheet-shaped body, the rod part and the rod part are respectively provided with a circular rod-shaped body, and the leak hole bodies are arranged in circular holes and distributed along one circumferential line of the plate part.

The invention designs that the backwater prevention spring is arranged as a cylindrical spring body, one end of the backwater prevention spring is connected with the backwater prevention baffle, and the other end of the backwater prevention spring is connected with the guide rail filter screen.

The invention designs that the filtering window of the guide rail filter screen is arranged into a rectangular body formed by arranging round holes, the left end face part of the guide rail filter screen is connected with the backwater prevention spring in a contact mode, and the right end face part of the guide rail filter screen is connected with the connector in a contact mode.

The invention designs that the sliding core and the nitrogen spring are connected in a mode of two sections of telescopic rods, the water knife sleeve shell, the nitrogen spring, the limiting sleeve ring and the spring seat are distributed in a mode of supporting and fixing the seat, the water knife sleeve shell, the water knife and the joint, the guide rail filter screen, the filter screen and the hole bottom pulverizer are distributed in a mode of double-end head filtration, and the center line of the water knife sleeve shell, the center line of the sliding core, the center line of the limiting sleeve ring, the center line of the nitrogen spring, the center line of the spring seat, the joint, the center line of the guide rail filter screen, the center line of the backwater prevention spring, the center line of the backwater prevention baffle plate, the center line of the top sleeve, the center line of the filter screen and the center line of the hole bottom pulverizer are arranged on the same straight line.

The invention has the technical effects that: comprises a water knife sleeve and a connector connected with the tail of the water knife sleeve through a female connector, wherein the water knife sleeve is internally provided with a central channel for water flow, the side wall of the water knife sleeve is provided with a hole for water flow to pass through, the middle position of the water knife sleeve is provided with a water knife communicated with the central channel, when the pressure is 0.6-1 Mpa, the water passes through the central hole of the water knife sleeve, a water flow hole bottom pulverizer, a filter screen filters large particles, the large particles flow into a sliding core, the water flow enters a top sleeve through the hole on the side wall of the water knife sleeve, the water flow pressure pushes a water return prevention baffle plate, the water return prevention spring is pushed to enter a compression state, the water return prevention baffle plate is in a water flow passing state, when the water flow pressure of a pipeline reaches 10Mpa, the water return prevention spring is compressed to the maximum, the water return prevention baffle plate is in contact with an annular limiting protrusion, the water flow can not pass through, the sliding core is pushed by the pressure, when the sliding core reaches the limiting sleeve ring, the water flow passes through the water knife to generate high-pressure water flow, the principle of nitrogen compression is utilized to replace the acting force generated by original spring compression, so that the slotting punching is more effective, the structure is simpler, the service life is long, the situation that the spring is worn and replaced in use does not exist, the pressure of the water flow of the water knife can be regulated according to the size of the nitrogen pressure of a user in different drilling and punching environments, when the water flows through the central hole of the water knife sleeve, the water flow passes through the hole bottom grinder, the hole bottom grinder adopts a spiral structure, the water flow is rotated when the water flow passes through the filter screen, when larger particles exist in the water flow, the large-particle impurities are left on the filter screen, the large-particle grinding is completed through the rotating hole bottom grinder, and the filter screen is effectively prevented from being blocked by the large-particle residues.

In the technical scheme, the nitrogen spring and the high-low pressure conversion slit cutter body, which are used for generating restoring force by the compressed intermediate medium, are important technical characteristics, and have novelty, creativity and practicability in the technical field of the high-low pressure conversion slit cutter, and the terms in the technical scheme can be explained and understood by using patent documents in the technical field.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Figure 1 is a schematic view of the present invention,

figure 2 is a schematic structural view of the water knife housing 1,

figure 3 is a right side view of figure 2,

figure 4 is a schematic structural view of the water knife 2,

figure 5 is a schematic view of the structure of the slide core 3,

figure 6 is a right side view of figure 5,

figure 7 is a schematic view of the structure of the stop collar 4,

figure 8 is a schematic view of the structure of the nitrogen spring 5,

figure 9 is a schematic view of the structure of the spring seat 6,

Figure 10 is a schematic view of the structure of the joint 7,

figure 11 is a schematic view of the structure of the guide rail filter screen 8,

figure 12 is a schematic structural view of the backwater prevention spring 9,

figure 13 is a schematic view of the structure of the backwater prevention baffle 10,

figure 14 is a left side view of figure 13,

figure 15 is a schematic view of the structure of the top cover 11,

figure 16 is a schematic view of the structure of filter 12,

figure 17 is a schematic view of the structure of the bottom hole pulverizer 13,

the water jet cutter comprises a water jet cutter shell-1, a water jet cutter-2, a sliding core-3, a limiting sleeve ring-4, a nitrogen spring-5, a spring seat-6, a joint-7, a guide rail filter screen-8, a backwater prevention spring-9, a backwater prevention baffle-10, a top sleeve-11, a filter screen-12, a hole bottom grinder-13, a first radial hole body-15, a transverse section hole body-16, a through hole body-17, a second radial hole body-18, a pipe shell-19, a through hole section I-171, a through hole section II-172, a through hole section III-173, a through hole section IV-174, a through hole section V-175, a cylinder-21, an injection hole section-22, an expansion hole section-23, an injection hole section-24, a support shaft part-131 the filter comprises a string shaft part-132, a first ring part-133, a second ring part-134, a blade part-135, a net piece part-121, a filter hole body-122, a string hole body-123, a core part-31, a transverse hole body-32, a third radial hole body-33, an annular groove body-34, a sinking groove body-35, a shrinkage end body-311, an expansion end body-312, a column part-71, a disc part-72, a cone part-73, a first transverse hole section-74, a second transverse hole section-75, a third transverse hole section-76, a fourth transverse hole section-77, a cross hole-111, a plate part-101, a rod part-102, a rod part-103, a leak-through hole body-104 and a filter window-81.

Detailed Description

Terms such as "having," "including," and "comprising," as used herein, are to be construed as not being accompanied by the presence or addition of one or more other elements or combinations thereof, in accordance with the censoring guidelines.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 1 is a view showing one of the first embodiment of the present invention, and specifically illustrates the present embodiment with reference to the accompanying drawings, comprising a water knife housing 1, a water knife 2, a sliding core 3, a limiting collar 4, a nitrogen spring 5, a spring seat 6, a joint 7, a guide rail filter screen 8, a backwater prevention spring 9, a backwater prevention baffle 10, a top cover 11, a filter screen 12 and a hole bottom pulverizer 13,

the water jet cutter is characterized in that a water jet cutter 2 is arranged at the side face of the water jet cutter casing 1, a hole bottom pulverizer 13 is arranged at one end of the water jet cutter casing 1, a joint 7 is arranged at the other end of the water jet cutter casing 1, a guide rail filter screen 8 and an anti-return water baffle 10 are arranged in the joint 7, an anti-return water spring 9 is arranged between the guide rail filter screen 8 and the anti-return water baffle 10, a filter screen 12 is arranged on the hole bottom pulverizer 13, a limit sleeve ring 4 is arranged on a spring seat 6, a nitrogen spring 5 is arranged between the limit sleeve ring 4 and the spring seat 6, a slide core 3, the limit sleeve ring 4, the nitrogen spring 5, the spring seat 6, the filter screen 12 and the hole bottom pulverizer 13 are respectively arranged in the water jet cutter casing 1, a slide core 3 is arranged between the filter screen 12 and the nitrogen spring 5, a top sleeve 11 is arranged between the spring seat 6 and the anti-return water baffle 10, and the outer side face of the slide core 3 is arranged to be in contact connection with the inner end of the water jet cutter 2.

In the present embodiment, a through hole body 17 is provided in a housing 19 of a water jet housing 1 and a first radial hole body 15 and a second radial hole body 18 are provided on the housing 19, a lateral section hole body 16 is provided in the housing 19 and the lateral section hole bodies 16 are provided to be spaced apart along the periphery of the through hole body 17, the through hole body 17 is provided to include a through hole section i 171, a through hole section ii 172, a through hole section iii 173, a through hole section iv 174, and a through hole section v 175 and the through hole section i 171 are provided in one end of the water jet housing 1, the through hole section v 175 is provided in the other end of the water jet housing 1, the first radial hole body 15 is provided to communicate with the through hole section iii 173 and the second radial hole body 18 is provided to communicate with the through hole section iv 174, one port of the lateral section hole body 16 is provided to communicate with the second radial hole body 18 and the other port of the lateral section hole body 16 is provided to communicate with the through hole section v 175, the first radial hole body 15 is arranged to be connected with the water jet 2, the through hole section II 172 is respectively arranged to be connected with the filter screen 12 and the hole bottom crusher 13, the through hole section III 173 is arranged to be connected with the slide core 3, the through hole section IV 174 is respectively arranged to be connected with the limit collar 4, the nitrogen spring 5, the spring seat 6 and the top sleeve 11, the through hole section V175 is arranged to be connected with the joint 7, the second radial hole bodies 18 are arranged to be distributed corresponding to the slide core 3 and the pipe shells 19 are arranged to be through tubular bodies, the first radial hole bodies 15 are arranged to be T-shaped round hole bodies, the through hole bodies 17 are arranged to be step-shaped hole bodies, the transverse section hole bodies 16 are arranged to be through hole bodies, the second radial hole bodies 18 are arranged to be blind holes, and plugs are arranged at the opening parts of the second radial hole bodies 18.

Through water sword cover 1, the support tie point to water sword 2, slide core 3, spacing lantern ring 4, nitrogen spring 5, spring holder 6, connect 7, top cover 11, filter screen 12 and hole bottom grinder 13 has been formed, by first radial hole body 15, realized being connected with water sword 2, by through-hole section II 172, realized being connected with holding of filter screen 12, realized being connected with holding of hole bottom grinder 13, by through-hole section III 173, realized being connected with holding of slide core 3, by through-hole section II 172, realized being connected with holding of spacing lantern ring 4, realized being connected with holding of nitrogen spring 5, realized being connected with holding of spring holder 6, realized being connected with holding of top cover 11, by through-hole section V175, realized being connected with holding of nitrogen spring 5, by horizontal section hole body 16 and radial hole body 18, realized the branch road intercommunication of through-hole section IV 174 and through-hole section V175.

In this embodiment, the through hole section I171 is provided as a tapered hole-like body and the taper of the through hole section I171 is set to 9-11 DEG, the through hole section V175 is provided as a threaded hole-like body and the through hole sections III 173 and IV 174 are provided in a shrinkage hole-like distribution with the through hole sections II 172 and V175.

The step distribution of the through hole body 17 is realized by the through hole section II 172, the through hole section III 173, the through hole section IV 174 and the through hole section V175, and the processing of mutual matching of the incident water flow and the hole bottom pulverizer 13 is realized by the through hole section I171.

In the present embodiment, the injection hole section 22 is provided at the outer end of the cylinder 21 of the water jet blade 2, the injection hole section 24 is provided at the inner end of the cylinder 21 and the expansion hole section 23 is provided at the middle of the cylinder 21, the ports of the expansion hole section 23 are respectively provided to communicate with the injection hole section 22 and the injection hole section 24 and the cylinder 21 is provided as a cross-shaped rod, the inner end of the cylinder 21 is provided to be screw-coupled with the water jet blade housing 1 and the injection hole section 22 and the injection hole section 24 are provided as a cylinder Kong Zhuangti, the expansion hole section 23 is provided as a tapered hole-shaped body and the taper of the expansion hole section 23 is provided to be 12 to 14 °.

Through water sword 2, formed the support tie point to water sword cover shell 1, realized the connection with water sword cover shell 1 by cylinder 21, realized the processing that forms high-pressure rivers by jet orifice section 22, expansion hole section 23 and injection hole section 24.

In the present embodiment, the hole bottom pulverizer 13 is provided to include a support shaft portion 131, a string shaft portion 132, a first ring portion 133, a second ring portion 134, and a blade portion 135, and the blade portion 13 is provided to be coupled to a side surface portion of the support shaft portion 131, a left end of the blade portion 13 is provided to be coupled to the second ring portion 134 and a right end of the blade portion 13 is provided to be coupled to the first ring portion 133, the string shaft portion 132 is provided to be coupled to a right end of the support shaft portion 131 and the second ring portion 134 is provided to be coupled to the water blade housing 1, the string shaft portion 132 is provided to be coupled to the filter screen 12 by a shaft clip, the first ring portion 133 is provided to be coupled to the filter screen 12 in contact with and the support shaft portion 131 and the string shaft portion 132 are provided as circular rod-shaped bodies, the first ring portion 133 and the second ring portion 134 are provided as circular ring-shaped bodies and the blade portion 135 is provided as a spiral piece.

Through hole bottom grinder 13, the support tie point to water sword cover 1 and filter screen 12 has been formed, has realized being connected with water sword cover 1 by second ring portion 134, has realized being connected with filter screen 12 by cluster shaft portion 132 and first ring portion 133, has realized the crushing processing to big particulate matter in the incident rivers by support shaft portion 131 and blade portion 135.

In the present embodiment, a series of hole bodies 123 are provided in the middle portion of the mesh portion 121 of the filter screen 12 and a filter hole body 122 is provided on the mesh portion 121, the filter hole bodies 122 are arranged to be circumferentially distributed with the series of hole bodies 123 and the series of hole bodies 123 are arranged to be coupled with the hole bottom pulverizer 13, the peripheral portion of the mesh portion 121 is arranged to be coupled in contact with the hole bottom pulverizer 13 and the mesh portion 121 is arranged to be a circular plate-like body, and the filter hole bodies 122 and the series of hole bodies 123 are respectively arranged to be circular hole-like bodies.

Through filter screen 12, the support tie point to hole bottom grinder 13 is formed, by net piece portion 121 and concatenate aperture body 123, realized being connected with hole bottom grinder 13, by filtering aperture body 122, realized the filtration treatment to incident rivers.

In the present embodiment, the third radial hole 33 is provided on the expansion end body 312 of the core part 31 of the slide core 3 and the lateral hole 32 is provided in the core part 31, one port of the lateral hole 32 is provided at the end of the contraction end body 311 of the core part 31 and one port of the lateral hole 32 is provided to communicate with the third radial hole 33, the sinking groove 35 is provided at the end of the expansion end body 312 and the annular groove 34 is provided at the outer side face of the expansion end body 312, the expansion end body 312 is provided to be coupled with the water knife jacket 1 and the contraction end body 311 is provided to be coupled with the water knife 2, the annular groove 34 is provided to be coupled with the seal ring connected with the water knife jacket 1 and the sinking groove 35 is provided to be coupled with the nitrogen spring 5, the end of the contraction end body 311 is provided to be coupled with the filter screen 12 in a gap, the third radial hole 33 is provided to be distributed corresponding to the water knife jacket 1, the core part 31 is provided to be a T-shaped body and the contraction end body 311 and the expansion end body 312 are provided to be distributed in a stepped body, the lateral hole 32 is provided to be a circular groove body and the annular groove body 34 is provided to be a circular groove body 34, and the circular groove body is provided to be a circular groove body 33 is provided to be a groove body in the radial groove body 35.

Through slide core 3, formed the support tie point to water sword cover 1, water sword 2, nitrogen spring 5 and filter screen 12, realized being connected with water sword cover 1 by extension end body 312 and annular groove body 34, realized being connected with water sword 2 by shrink end body 311, realized being connected with filter screen 12, realized being connected with nitrogen spring 5 by sinking into cell body 35, realized branching road flow treatment in water sword cover 1 by horizontal hole body 32 and third radial hole body 33, realized the incident water flow.

In the present embodiment, the limit collar 4 is provided as a circular disk-shaped body and the limit collar 4 is provided in series connection with the nitrogen spring 5, and the limit collar 4 is provided in screw connection with the spring seat 6.

Through spacing lantern ring 4, formed the support tie point to nitrogen spring 5 and spring holder 6, realized being connected with spring holder 6 by spacing lantern ring 4, realized being connected with nitrogen spring 5.

In the present embodiment, the spring seat 6 is provided as a box-shaped body and the spring seat 6 is provided in a housing-type coupling with the nitrogen spring 5, the open portion of the spring seat 6 is provided in a screw-type coupling with the limit collar 4 and the spring seat 6 is provided in an embedded-type coupling with the water knife housing 1.

Through spring holder 6, formed the support tie point to nitrogen spring 5, spacing lantern ring 4 and water sword cover 1, by spring holder 6, realized being connected with water sword cover 1, realized being connected with spacing lantern ring 4, realized being connected with nitrogen spring 5.

In the present embodiment, the housing portion of the nitrogen spring 5 is provided to be coupled with the spring seat 6 through the stopper collar 4, the telescopic head portion of the nitrogen spring 5 is provided to be coupled in series with the stopper collar 4 and the telescopic head portion of the nitrogen spring 5 is provided to be coupled in contact with the slide core 3.

Through nitrogen spring 5, formed the support tie point to spring holder 6, spacing lantern ring 4 and slide core 3, by nitrogen spring 5, realized being connected with slide core 3, realized being connected with spacing lantern ring 4, realized being connected with spring holder 6.

In the present embodiment, the joint 7 is provided to include the column portion 71, the disc portion 72 and the tapered portion 73, and the ends of the disc portion 72 are provided to be coupled with the column portion 71 and the tapered portion 73, respectively, a first cross hole section 74, a second cross hole section 75, a third cross hole section 76 and a fourth cross hole section 77 are provided in the joint 7, respectively, and the first cross hole section 74, the second cross hole section 75, the third cross hole section 76 and the fourth cross hole section 77 are provided to be distributed in a manner of mutually penetrating stepped holes, the first cross hole section 74 is provided to be coupled with the top jacket 11, and the fourth cross hole section 77 is provided to be coupled with the backwater prevention baffle 10, the third cross hole section 76 is provided to be coupled with the guide rail screen 8 and the backwater prevention spring 9, the column portion 71 is provided to be screw-threaded with the water knife housing 1, the column portion 71 is provided to be a threaded circular flange body, the disc portion 72 is provided to be a circular flange body, the tapered portion 73 is provided to be tapered, and the first cross hole section 74, the third cross hole section 75 and the fourth cross hole section 77 are provided to be coupled with the backwater prevention baffle 10, respectively.

Through the joint 7, the supporting connection point of the water sword shell 1, the guide rail filter screen 8, the backwater prevention spring 9, the backwater prevention baffle 10 and the top sleeve 11 is formed, the connection with the water sword shell 1 is realized by the column part 71, the connection with the guide rail filter screen 8 is realized by the third transverse hole section 76, the connection with the backwater prevention spring 9 is realized, the connection with the backwater prevention baffle 10 is realized by the second transverse hole section 75, the connection with the top sleeve 11 is realized by the first transverse hole section 74, and the ejection of high-pressure water flow is realized by the fourth transverse hole section 77.

In the present embodiment, a cross-shaped hole 111 is provided in the top cover 11 and the top cover 11 is provided as a T-shaped rod-shaped body, the flange body of the top cover 11 is provided to be coupled with the joint 7 and the vertical hole end of the cross-shaped hole 111 is provided between the joint 7 and the water jet blade housing 1, and the left end of the top cover 11 is provided to be coupled in contact with the spring seat 6.

Through top cover 11, the support tie point of butt joint 7 and spring holder 6 has been formed, by top cover 11, realized being connected with joint 7, realized being connected with spring holder 6, by cross hole 111, realized the flow of high-pressure water flow in joint 7.

In the present embodiment, the backwater prevention baffle 10 is provided to include a plate portion 101, a rod portion 102, and a rod portion 103, and the ends of the rod portion 102 are provided to be coupled with the plate portion 101 and the rod portion 103, respectively, a leak hole body 104 is provided at the peripheral portion of the plate portion 101 and the plate portion 101 is provided to be coupled in contact with the backwater prevention spring 9, the rod portion 102 is provided to be coupled in snap-fit with the backwater prevention spring 9 and the rod portion 103 is provided to be coupled in series with the backwater prevention spring 9, the plate portion 101 is provided to be a circular plate-like body and the rod portion 102 and the rod portion 103 are provided to be circular rod-like bodies, respectively, the leak hole body 104 is provided to be circular holes, and the leak hole bodies 104 are provided to be arranged in a line along one circumferential line of the plate portion 101.

Through preventing return water baffle 10, formed the butt joint 7 and prevent the support tie point of return water spring 9, by plate portion 101, stick portion 102 and pole portion 103, realized with connect 7's connection, realized with prevent the connection of return water spring 9, by the leak orifice body 104, realized the break-make flow of high-pressure rivers in connect 7.

In the present embodiment, the backwater prevention spring 9 is provided as a cylindrical spring body and one end of the backwater prevention spring 9 is provided to be coupled with the backwater prevention baffle 10 and the other end of the backwater prevention spring 9 is provided to be coupled with the guide rail filter screen 8.

Through preventing return spring 9, formed the support tie point to guide rail filter screen 8 and prevent return water baffle 10, by preventing return spring 9, realized with guide rail filter screen 8's connection, realized with prevent return water baffle 10's connection.

In the present embodiment, the filter window 81 of the guide screen 8 is provided as a rectangular body formed by arranging circular holes and the left end face portion of the guide screen 8 is provided in contact with the return water prevention spring 9, and the right end face portion of the guide screen 8 is provided in contact with the joint 7.

Through guide rail filter screen 8, formed the butt joint 7 and prevent the tie point of return spring 9, realized being connected with the joint 7 by guide rail filter screen 8, realized being connected with prevent return spring 9, realized the filtration treatment to high-pressure water flow by filtration window 81.

In this embodiment, the slide core 3 and the nitrogen spring 5 are arranged to be coupled in a two-section telescopic rod manner, and the water knife sleeve 1 and the nitrogen spring 5 are arranged to be distributed in a seat support fixing manner, the water knife sleeve 1, the water knife 2 and the joint 7 are arranged to be distributed in a double-end filtering manner with the guide rail filter screen 8, the filter screen 12 and the hole bottom pulverizer 13, and the center line of the water knife sleeve 1, the center line of the slide core 3, the center line of the limit sleeve 4, the center line of the nitrogen spring 5, the center line of the spring seat 6, the joint 7, the center line of the guide rail filter screen 8, the center line of the backwater prevention spring 9, the center line of the backwater prevention baffle 10, the center line of the top sleeve 11, the center line of the filter screen 12 and the center line of the hole bottom pulverizer 13 are arranged on the same straight line.

When the pressure of water flow is 0.6-1 Mpa, the pressure is smaller than the elastic energy storage of the water return prevention spring 9 and the nitrogen spring 5, under the elastic energy storage effect of the water return prevention spring 9, the plate part 101 is in contact with the top sleeve 11, under the elastic energy storage effect of the nitrogen spring 5, the shrinkage end body 311 is in contact with the port of the injection hole section 24, water flow enters into the through hole section II 172 through the through hole section I171, the flow speed of the water flow is increased through the blade part 135, large particles in the water flow are crushed into small particles, the large particles are blocked by the water flow through the filtering hole body 122, the water flow containing the small particles sequentially passes through the transverse hole body 32 and the third radial hole body 33 and is injected into the second radial hole body 18 and the transverse hole body 16, the water flow containing the small particles is injected into the third transverse hole section 76 through the cross hole 111 and the leak hole body 104, high pressure water flow is sprayed out through the fourth transverse hole section 77 after being filtered by the filtering window 81, when the pressure of the water flow reaches 10, the water flow is larger than the elastic energy storage of the water return prevention spring 9 and the nitrogen spring 5, the large particles in the water return prevention spring 9 are crushed into the small particles through the blade part 135, the large particles are compressed by the water return prevention spring 9, the water flow is compressed by the water flow from the top sleeve 9 and the third transverse hole 11, the water flow is sprayed out of the third transverse hole 11 and the top sleeve 16, the water flow is compressed by the fourth transverse hole 11, the high pressure is sprayed out of the water flow hole 11 and the water flow is compressed by the fourth transverse hole 11, and the high pressure hole 11 is compressed by the water hole 11, and the high pressure hole 12 is compressed by the water hole 12 is compressed by the high pressure hole is compressed by the water hole 12, and the high pressure hole is compressed by the high pressure hole 12, and has high pressure is compressed by the high pressure is compressed and has high pressure is compressed and has high pressure is compressed.

In a second embodiment of the invention, the through-hole section I171 is provided as a tapered hole-like body and the taper of the through-hole section I171 is set to 9 deg..

The expansion hole section 23 is provided as a tapered hole-like body and the taper of the expansion hole section 23 is provided as 12 °.

In a third embodiment of the present invention, the through-hole section i 171 is provided as a tapered hole-like body and the taper of the through-hole section i 171 is set to 11 °.

The expanded bore section 23 is provided as a conical bore body and the taper of the expanded bore section 23 is provided as 14 °.

In the fourth embodiment of the present invention, the through-hole section i 171 is provided as a tapered hole-like body and the taper of the through-hole section i 171 is set to 10 °.

The expanded bore section 23 is provided as a conical bore body and the taper of the expanded bore section 23 is provided as 13 °.

In a second embodiment of the present invention, the nitrogen spring 5 having the compressed intermediate medium and the high-low pressure conversion slit cutter body for the main body are coupled to each other in such a manner that the compressed intermediate medium generates a restoring force.

In this embodiment, the nitrogen spring 5 is coupled to the high-low pressure conversion slit cutter body in such a manner that the compressed gas generates a restoring force.

In this embodiment, the high-low pressure conversion slit cutter body is configured to further include a water knife 2, a joint 7, a backwater prevention spring 9, a backwater prevention baffle 10, and a top cover 11.

In this embodiment, a first accessory device is further included and is disposed between the nitrogen spring 5 and the water knife casing 1, the first accessory device is configured to include a limit collar 4 and a spring seat 6, and the limit collar 4 and the spring seat 6 are configured to be fixedly distributed in a wrapping manner.

In the present embodiment, a second accessory device is further included and is provided to be coupled with the water blade housing 1, the second accessory device is provided to include the filter screen 12 and the hole bottom pulverizer 13, and the filter screen 12 and the hole bottom pulverizer 13 are provided in an accelerating dispersion distribution.

In this embodiment, a third attachment means is also included and is provided to be coupled with the high-low pressure conversion slit cutter body, the third attachment means being provided as a rail screen 8.

The second embodiment of the present invention is based on the first embodiment.

When the hydraulic cutting anti-reflection operation is carried out in a mine, the hydraulic cutting anti-reflection operation method has the advantages that the water flow pressure of the high-pressure jet is kept, the hydraulic cutting anti-reflection operation safety performance is very important, the limiting sleeve ring 4, the nitrogen spring 5 and the spring seat 6 are designed, so that the water flow of the high-pressure jet is not acted on a steel wire for manufacturing the spring any more, the bundling property of the water flow of the high-pressure jet is kept, the dimensional precision of the hydraulic cutting anti-reflection operation is improved, meanwhile, the hole bottom pulverizer 13 is designed, large particles are prevented from being existed, the dimensional precision of the water flow bundle of the high-pressure jet is improved, the impact force of the anti-return spring 9 is prevented from being generated, and the stability performance of the high-low pressure conversion slotting machine is improved.

The invention has the following characteristics:

1. because the nitrogen spring 5 and the high-low pressure conversion slotting machine body are designed, high-low pressure conversion slotting is realized through the high-low pressure conversion slotting machine body, the sliding core 3 is driven to move through the nitrogen spring 5, the shell of the nitrogen spring 5 is subjected to high-pressure water flow impact, and the spring is not directly used for bearing the high-pressure water flow impact any more, so that the reliability of the high-low pressure conversion slotting machine is improved.

2. Due to the design of the limit collar 4 and the spring seat 6, the installation stability of the nitrogen spring 5 is improved.

3. Because the filter screen 12, the hole bottom pulverizer 13 and the guide rail filter screen 8 are designed, large particles are prevented from entering the water knife sleeve shell 1 and the joint 7 along with water flow, and blocking phenomenon is prevented.

4. Because the structure shape is designed to limit the numerical range, the numerical range is the technical characteristic in the technical scheme of the invention, and the technical characteristic of the numerical range is not calculated through a formula or obtained through limited tests, and the tests show that the technical characteristic of the numerical range has good technical effect.

5. Because the technical characteristics of the invention are designed, the experiment shows that the performance indexes of the invention are at least 1.7 times of the existing performance indexes under the independent and mutually aggregated functions of the technical characteristics, and the invention has good market value through evaluation.

Other technical features of the nitrogen spring 5 and the high-low pressure converting slit cutter body which are coupled with the compressed intermediate medium to generate restoring force are one of the embodiments of the present invention, and the technical features of the above embodiments may be arbitrarily combined, so that all possible combinations of the technical features of the above embodiments are not described to meet the requirements of patent laws, patent implementation details and examination guidelines.

Therefore, in the technical field of high-low pressure converting slit cutters, the technical content of the nitrogen spring 5 which is arranged between the water jet cutter shell 1 and the sliding core 3 and is used for generating the moving range of the sliding core 3 is within the protection scope of the invention, and the nitrogen spring comprises a high-low pressure converting slit cutter body with the water jet cutter shell 1 and the sliding core 3.

Claims

1. A high-low pressure conversion slotting machine is characterized in that: comprises a high-low pressure conversion slot cutter body with a water knife shell (1) and a sliding core (3), a nitrogen spring (5) which is arranged between the water knife shell (1) and the sliding core (3) and is used for generating a moving section of the sliding core (3),

the nitrogen spring (5) with compressed intermediate medium and the high-low pressure conversion slit cutter body for the main body are mutually connected in a manner that the compressed intermediate medium generates restoring force,

The nitrogen spring (5) is connected with the high-low pressure conversion slit cutter body in a mode that the compressed gas generates restoring force,

the high-low pressure conversion slit cutter body is arranged to further comprise a water knife (2), a joint (7), a backwater prevention spring (9), a backwater prevention baffle plate (10) and a top sleeve (11),

the water knife shell also comprises a first accessory device which is arranged between the nitrogen spring (5) and the water knife shell (1), the first accessory device comprises a limit collar (4) and a spring seat (6), the limit collar (4) and the spring seat (6) are arranged in a wrapping and fixed distribution,

the water jet knife also comprises a second accessory device which is connected with the water jet knife shell (1), the second accessory device comprises a filter screen (12) and a hole bottom crusher (13), the filter screen (12) and the hole bottom crusher (13) are arranged in an accelerating and dispersing way,

the high-low pressure conversion slot cutter also comprises a third accessory device which is connected with the high-low pressure conversion slot cutter body and is arranged as a guide rail filter screen (8),

the utility model provides a be provided with water sword (2) at the side of water sword cover shell (1) and be provided with hole end grinder (13) at the one end of water sword cover shell (1), another end of water sword cover shell (1) is provided with joint (7) and is provided with guide rail filter screen (8) and anti-return baffle (10) in joint (7), be provided with between guide rail filter screen (8) and anti-return baffle (10) and prevent return spring (9) and filter screen (12) set up on hole end grinder (13), spacing lantern ring (4) set up on spring holder (6) and nitrogen spring (5) set up between spacing lantern ring (4) and spring holder (6), slide core (3), spacing lantern ring (4), nitrogen spring (5), spring holder (6) and hole end grinder (13) set up respectively in water sword (1), be provided with core (3) between filter screen (12) and nitrogen spring (5) and be provided with top cover (11) between spring holder (6) and anti-return baffle (10), core (3) set up to the outside contact head of water face portion (2) with the hookup.

2. The high-low voltage conversion slot machine of claim 1, wherein: the shell part of the nitrogen spring (5) is connected with the spring seat (6) through the limit collar (4), the telescopic head part of the nitrogen spring (5) is connected with the limit collar (4) in series, and the telescopic head part of the nitrogen spring (5) is connected with the sliding core (3) in a contact mode.

3. The high-low voltage conversion slot machine of claim 1, wherein: a through hole body (17) is arranged in a tube shell (19) of the water jet casing (1) and a first radial hole body (15) and a second radial hole body (18) are arranged on the tube shell (19), a transverse section hole body (16) is arranged in the tube shell (19) and is distributed at intervals along the periphery of the through hole body (17), the through hole body (17) is arranged to comprise a through hole section I (171), a through hole section II (172), a through hole section III (173), a through hole section IV (174) and a through hole section V (175) and the through hole section I (171) are arranged in one end of the water jet casing (1), the through hole section V (175) is arranged in the other end of the water jet casing (1), the first radial hole body (15) is arranged to be communicated with the through hole section III (173) and the second radial hole body (18) is arranged to be communicated with the through hole section IV (174), one port of the transverse section hole body (16) is arranged to be communicated with the second radial hole body (18) and the other port of the transverse section hole body (16) is arranged to be communicated with the filter screen (12) and the filter screen (13) is arranged to be connected with the bottom of the water jet casing (1) and the filter screen (12), through hole section III (173) is set up to be linked with slide core (3) and through hole section IV (174) are set up respectively to be linked with spacing lantern ring (4), nitrogen spring (5), spring holder (6) and top cover (11), through hole section V (175) are set up to be linked with joint (7), second radial hole body (18) are set up to be distributed with slide core (3) correspondence and shell (19) set up to logical tubular body, first radial hole body (15) set up to T font round hole body and through hole body (17) set up to step hole form body, horizontal section hole body (16) set up to the through hole body and second radial hole body (18) set up to the blind hole, be provided with the end cap at the uncovered portion of second radial hole body (18).

4. The high-low voltage conversion slot machine of claim 1, wherein: the through hole section I (171) is arranged as a conical hole body, the taper of the through hole section I (171) is 9-11 degrees, the through hole section V (175) is arranged as a threaded hole body, and the through hole section III (173) and the through hole section IV (174) are distributed in a shrinkage hole mode with the through hole section II (172) and the through hole section V (175).

5. The high-low voltage conversion slot machine of claim 1, wherein: an injection hole section (22) is arranged at the outer end head of a cylinder (21) of the water knife (2), an injection hole section (24) is arranged at the inner end head of the cylinder (21) and an expansion hole section (23) is arranged at the middle part of the cylinder (21), the ports of the expansion hole section (23) are respectively communicated with the injection hole section (22) and the injection hole section (24) and the cylinder (21) is a cross-shaped rod body, the inner end head of the cylinder (21) is in threaded connection with the water knife sleeve (1) and the injection hole section (22) and the injection hole section (24) are arranged as a cylinder Kong Zhuangti, the expansion hole section (23) is a conical hole body and the taper of the expansion hole section (23) is 12-14 degrees.

6. The high-low voltage conversion slot machine of claim 1, wherein: a third radial hole body (33) is arranged on an expansion end head body (312) of a core shell part (31) of the sliding core (3), a transverse hole body (32) is arranged in the core shell part (31), one end opening of the transverse hole body (32) is arranged at the end head of a shrinkage end head body (311) of the core shell part (31) and one end opening of the transverse hole body (32) is communicated with the third radial hole body (33), an end head of the expansion end head body (312) is provided with a sunk groove body (35) and an annular groove body (34) is arranged on the outer side face of the expansion end head body (312), the expansion end head body (312) is connected with a water knife shell body (1) and the shrinkage end head body (311) is connected with a water knife (2), the annular groove body (34) is connected with a sealing ring connected with the water knife (1) and the sunk groove body (35) is connected with a nitrogen spring (5), the end head of the shrinkage end head body (311) is connected with the third radial hole body (33) in a clearance way, the third radial hole body (33) is arranged to be distributed in a shape corresponding to the water knife shell body (31) and the annular groove body (32) is distributed in a shape, the third radial hole body (33) and the sinking groove body (35) are arranged as round blind hole bodies.

7. The high-low voltage conversion slot machine of claim 1, wherein: the joint (7) is arranged to comprise a column part (71), a disc part (72) and a conical part (73), the ends of the disc part (72) are respectively arranged to be connected with the column part (71) and the conical part (73), a first cross hole section (74), a second cross hole section (75), a third cross hole section (76) and a fourth cross hole section (77) are respectively arranged in the joint (7), the first cross hole section (74), the second cross hole section (75), the third cross hole section (76) and the fourth cross hole section (77) are distributed in a manner that the cross hole is mutually communicated, the first cross hole section (74) is arranged at the end of the column part (71) and the fourth cross hole section (77) is arranged at the end of the conical part (73), the first cross hole section (74) is arranged to be connected with a top sleeve (11) and the second cross hole section (75) is arranged to be connected with a backwater baffle (10), the third cross hole section (76) is arranged to be connected with a guide rail (8) and a backwater baffle (9), the third cross hole section (76) is arranged to be connected with the circular flange part (71), the circular flange part (71) is arranged to be connected with the circular flange part (73), the circular flange part (71) is arranged to be a circular flange part (73), the circular flange part (71) is arranged to be connected with the circular flange part (73), the circular flange part (is arranged to be connected with the circular flange part (7) of the backwater baffle is arranged to be connected with the backwater baffle, the third transverse hole section (76) and the fourth transverse hole section (77) are respectively provided with a round columnar hole body.

8. The high-low voltage conversion slot machine of claim 1, wherein: a cross-shaped hole (111) is formed in the top sleeve (11), the top sleeve (11) is a T-shaped rod-shaped body, a flange body of the top sleeve (11) is connected with the connector (7), the vertical hole end of the cross-shaped hole (111) is arranged between the connector (7) and the water knife sleeve shell (1), and the left end head of the top sleeve (11) is connected with the spring seat (6) in a contact mode.

9. The high-low voltage conversion slot machine of claim 1, wherein: the water return prevention baffle (10) comprises a plate (101), a rod (102) and a rod (103), the ends of the rod (102) are respectively connected with the plate (101) and the rod (103), a permeable hole body (104) is arranged at the periphery of the plate (101) and is connected with the water return prevention spring (9) in a contact mode, the rod (102) is connected with the water return prevention spring (9) in a clamping mode, the rod (103) is connected with the water return prevention spring (9) in a serial mode, the plate (101) is a circular sheet-shaped body, the rod (102) and the rod (103) are respectively arranged into circular rod-shaped bodies, and the permeable hole bodies (104) are arranged into circular holes and are distributed in an interval mode along one circumferential line of the plate (101).

10. The high-low voltage conversion slot machine of claim 1, wherein: the backwater prevention spring (9) is a cylindrical spring body, one end of the backwater prevention spring (9) is connected with the backwater prevention baffle (10), and the other end of the backwater prevention spring (9) is connected with the guide rail filter screen (8).

11. The high-low voltage conversion slot machine of claim 1, wherein: the limiting lantern ring (4) is a circular disc-shaped body, the limiting lantern ring (4) is connected with the nitrogen spring (5) in series, and the limiting lantern ring (4) is connected with the spring seat (6) in a threaded mode.

12. The high-low voltage conversion slot machine of claim 1, wherein: the spring seat (6) is arranged into a box-shaped body, the spring seat (6) is arranged to be connected with the nitrogen spring (5) in a containing mode, the opening part of the spring seat (6) is arranged to be connected with the limiting collar (4) in a threaded mode, and the spring seat (6) is arranged to be connected with the water knife sleeve shell (1) in an embedded mode.

13. The high-low voltage conversion slot machine of claim 1, wherein: the hole bottom pulverizer (13) comprises a supporting shaft part (131), a string shaft part (132), a first ring part (133), a second ring part (134) and a blade part (135), wherein the blade part (135) is connected with the side surface part of the supporting shaft part (131), the left end of the blade part (135) is connected with the second ring part (134), the right end of the blade part (135) is connected with the first ring part (133), the string shaft part (132) is connected with the right end of the supporting shaft part (131) and the second ring part (134) is connected with the water jet casing (1), the string shaft part (132) is connected with the filter screen (12) through a shaft clamp, the first ring part (133) is connected with the filter screen (12) in a contact mode, the supporting shaft part (131) and the string shaft part (132) are respectively arranged into round rod-shaped bodies, and the first ring part (133) and the second ring part (134) are respectively arranged into round ring-shaped bodies and the blade part (135) is arranged into a spiral piece.

14. The high-low voltage conversion slot machine of claim 1, wherein: the middle part of a net piece part (121) of the filter screen (12) is provided with a series connection hole body (123) and a filter hole body (122) is arranged on the net piece part (121), the filter hole bodies (122) are distributed around the series connection hole body (123) and are connected with a hole bottom pulverizer (13), the periphery part of the net piece part (121) is connected with the hole bottom pulverizer (13) in a contact mode, the net piece part (121) is a circular plate body, and the filter hole bodies (122) and the series connection hole bodies (123) are respectively arranged into circular hole bodies.

15. The high-low voltage conversion slot machine of claim 1, wherein: the filtering window (81) of the guide rail filter screen (8) is arranged into a rectangular body formed by arranging round holes, the left end face of the guide rail filter screen (8) is connected with the backwater prevention spring (9) in a contact mode, and the right end face of the guide rail filter screen (8) is connected with the joint (7) in a contact mode.

16. The high-low voltage conversion slot machine of claim 1, wherein: slide core (3) and nitrogen spring (5) set up to couple according to the mode of two sections telescopic links and water sword cover shell (1) and nitrogen spring (5) and spacing lantern ring (4) and spring holder (6) set up to support fixed mode distribution according to the seat, water sword cover shell (1), water sword (2) and joint (7) and guide rail filter screen (8), filter screen (12) and hole bottom grinder (13) set up to distribute and the central line of water sword cover shell (1) according to the mode of bi-polar filtration, the central line of slide core (3), the central line of spacing lantern ring (4), the central line of nitrogen spring (5), the central line of spring holder (6), joint (7), the central line of guide rail filter screen (8), the central line of anti-return water spring (9), the central line of anti-return water baffle (10), the central line of top cover (11), the central line of filter screen (12) and the central line of hole bottom grinder (13) set up on same straight line.