阅读说明：本技术 一种新型手持式水刀切割枪 (Novel hand-held type water sword cutting torch ) 是由 李森 于 2020-06-08 设计创作，主要内容包括：一种新型手持式水刀切割枪,在切割枪的本体上设置了磨料控阀扳机,通过磨料控阀扳机来控制下磨料输送管和上磨料输送管的连通,为枪头组件提供磨料,超高压水和磨料在枪头组件内混合喷出枪头组件,对需要被切割的物件实施切割。其中挺杆是为了防止误操作设置的,高压压力表是用于判断高压气瓶内高压气体的存量的,低压压力表是用于判断本发明是否正常工作需要具备条件的。本发明可以单人操作,无需其他人员配合的情况下执行操作,与现有的水刀切割枪相比较,减少了磨料控制的延时动作,提高了使用的可靠性。由于没有电器构成,无火花产生,适于在易燃易爆的场合工作。(The utility model provides a novel hand-held type water sword cutting torch, has set up abrasive material accuse valve trigger on cutting torch's body, controls the intercommunication of lower abrasive material conveyer pipe and last abrasive material conveyer pipe through abrasive material accuse valve trigger, for the rifle head subassembly provides the abrasive material, super high pressure water and abrasive material mix blowout rifle head subassembly in rifle head subassembly, implement the cutting to the article that needs are cut. The tappet is arranged for preventing misoperation, the high-pressure gauge is used for judging the storage amount of high-pressure gas in the high-pressure gas cylinder, and the low-pressure gauge is used for judging whether the high-pressure gas cylinder needs to have conditions for normal work. The invention can be operated by one person without the cooperation of other personnel, reduces the time delay action of abrasive material control and improves the use reliability compared with the prior water jet cutting gun. Because no electric appliance is used, no spark is generated, and the device is suitable for working in flammable and explosive occasions.)

1. A novel hand-held water jet cutting gun includes: the automatic grinding machine comprises a gun body (1), a valve core (3), a tappet (8), an air pressure control trigger (9), a front handle (11), a lower grinding material conveying pipe (12), a grinding material control valve trigger (15), an upper grinding material conveying pipe (17), a gun head component (18), a valve needle (19), a water inlet valve body (21), a piston (22), a high-pressure gas cylinder (25) and a pressure reducing valve (26); wherein the gun body (1) and the rear handle (6) are integrated;

a hole is formed above the gun body (1), the hole is communicated with a left cavity in the gun body (1), and external high-pressure gas enters the left cavity in the gun body (1) from the hole; a hole is formed in a set position below the gun body (1), and the hole is communicated with a left cavity and a right cavity in the gun body (1) in a cross mode; the first spring (2) is placed in the hole and is abutted against the bottom end of the hole; the sealing ring (4) is arranged in the hole and is abutted against the step in the hole, the upper end of the valve core (3) is arranged in the hole and is abutted against the lower end of the first spring (2), and the sealing ring (4) is sleeved on the cylindrical surface at the upper part of the valve core (3) and is in sealing sleeve connection; the guide sleeve (5) is arranged on a step at the bottom of the central hole of the sleeve (7) and fixedly connected; the guide sleeve (5) and the central hole of the sleeve (7) are sleeved with the lower part of the valve core (3) and are placed in the hole to be fixedly connected, and the upper end surface of the sleeve (7) is abutted to the sealing ring (4); the valve core (3) moves upwards to a set position, and after the small section part of the valve core is separated from the sealing of the sealing ring (4), the left cavity and the right cavity in the gun body (1) are communicated; the valve core (3) moves downwards, the large section part of the upper part of the valve core is in sealing connection with the sealing ring (4), and the left cavity and the right cavity of the gun body (1) are separated from each other;

the upper end hole of the air pressure control trigger (9) is hinged with a set through hole shaft on the lower part of the gun body (1), and the middle hole of the air pressure control trigger (9) is hinged with the through hole shaft on the lower end of the valve core (3);

the third spring (23) is placed in from a right end hole of the gun body (1), the left end of the third spring (23) is abutted to a second surface (32) on the gun body (1), the left end of the piston (22) is placed in the right end hole of the gun body (1) and penetrates through the second surface (32) leftwards, and the left end of the piston (22) is adjacent to the second surface (31); the left end surface part of the cylindrical surface in the middle of the piston (22) is abutted against the right end of the third spring (23) and penetrates through the second surface (32) leftwards; the left end surface of the maximum cylindrical surface in the middle of the piston (22) is correspondingly adjacent to a third surface (33) on the gun body (1); the cylindrical surface of the piston (22) is in sliding connection with the inner cylindrical surface of the matched hole in the gun body (1), and the cylindrical surface on the left side of the piston (22) is in sealing connection with the hole in sliding connection with the inner cylindrical surface between the first surface and the second surface;

the piston (22) is communicated with the right end face side of the maximum cylindrical surface of the piston (22) through a horizontal central hole; the left end of the water inlet valve body (21) is placed into the right port of the gun body (1), the cylindrical surface of the left end of the water inlet valve body (21) is fixedly connected with the cylindrical surface of the right port of the gun body (1), and the cylindrical part on the right side of the maximum cylindrical surface of the piston (22) is placed into the central hole of the water inlet valve body (21); a concave pit is formed in the center of the left surface of the water inlet valve body (21), and the diameter of the concave pit is larger than that of the cylindrical surface of the right rod of the maximum cylindrical surface of the piston (22);

the sealing sleeve (20) is arranged in a central hole of the water inlet valve body (21) from a right end hole of the water inlet valve body (21) and is abutted against a boss arranged in the central hole; the outer main surface of the sealing sleeve (20) is in sealing connection with the corresponding hole wall; the left end of the valve needle (19) is placed into a central hole of the water inlet valve body (21) and penetrates through a central hole of the sealing sleeve (20); the inner cylindrical surface of the central hole of the sealing sleeve (20) is hermetically connected with the cylindrical surface of the left side rod of the valve needle (19); the middle part of the valve needle (19) is a cylindrical surface with the diameter larger than that of the rods at the two sides of the valve needle and is connected with the hole wall corresponding to the water inlet valve body (21) in a sliding fit manner; a plurality of grooves are formed in the large-diameter cylindrical surface in the middle of the valve needle (19), and the grooves are in the axial direction of the valve needle (19) and are communicated with the two sides of the large cylindrical surface in the middle of the valve needle (19);

a hole is formed in the set position of the water inlet valve body (21), the ultrahigh pressure hose (30) is connected with the outside of the hole, and the hole is communicated with the central hole of the water inlet valve body (21) and is positioned in a space with equal diameter contacted with the outer cylindrical surface of the sealing sleeve (20);

the left end of the gun head assembly (18) is arranged in a right end hole of the water inlet valve body (21) and is fixedly connected with the water inlet valve body; the end part of a right-end cone of the valve needle (19) corresponds to the center of a left-end hole of the gun head assembly (18), and the diameter of the right cylindrical surface of the valve needle (19) is larger than that of the left-end hole of the gun head assembly (18); the method is characterized in that:

the upper end of the front handle (11) is fixedly connected with a set position at the lower part of the water inlet valve body (21); a plurality of guide holes are formed in the left side of the front handle (11), the lower ends of a plurality of guide columns (13) penetrate through the left side of the front handle (11), and the heads of the upper ends of the guide columns (13) are adjacent to steps in the left hole of the front handle (11) to prevent the guide columns (13) from penetrating through the corresponding holes; the second springs (14) are respectively sleeved on the lower parts of the guide posts (13) correspondingly, and the upper ends of the second springs (14) are abutted against the end surface on the right side of the guide hole formed in the front handle (11);

the abrasive control valve trigger (15) is arranged in a cavity arranged at the right part of the front handle (11), and the end surface set at the left side of the abrasive control valve trigger (15) is connected with the lower ends of the guide columns (13) and is abutted against the lower ends of the second springs (14); the abrasive material control valve trigger (15) is pressed, the abrasive material control valve trigger (15) slides along the axis direction of the guide column (13), a limiting device is arranged on the front handle (11), and the abrasive material control valve trigger (15) is limited to slide out of the front handle (11);

a hole is formed in the abrasive control valve trigger (15), and an abrasive sealing ring (16) is clamped at the upper end opening of the hole; the upper end surface of the abrasive sealing ring (16) is abutted against the adjacent surface of the upper end surface of the abrasive control valve trigger (15) adjacent to the front handle (11); the grinding material control valve trigger (15) is pressed to a set position, and the opening of the grinding material sealing ring (16) is communicated with a hole formed in the upper part of the front handle (11);

a hole is formed in the middle of the gun head assembly (18), and the hole is communicated with a sand mixing cavity (34) of a central hole of the gun head assembly (18); one end of the lower abrasive conveying pipe (12) is connected with a lower end hole of the abrasive control valve trigger (15), one end of the upper abrasive conveying pipe (17) is connected with an upper end hole of the front handle (11), and the other end of the upper abrasive conveying pipe (17) is connected with a hole formed in the middle of the gun head assembly (18); when an abrasive control valve trigger (15) arranged on the front handle (11) is pressed to a set position, the lower abrasive conveying pipe (12) is communicated with a sand mixing cavity (34) of a central hole of the gun head assembly (18).

2. The novel hand-held water jet cutting gun of claim 1, wherein:

the high-pressure gas bottle (25) is fixedly arranged at a set position at the upper part of the gun body (1) by a high-pressure gas bottle fixing band (24), the inlet of the reducing valve (26) is communicated with high-pressure gas in the high-pressure gas bottle (25), the outlet of the reducing valve (26) is connected to the gun body (1), a hole is formed above the gun body (1) and is communicated with a left cavity in the gun body (1); the pressure regulating handle (27) on the pressure reducing valve (26) is used for regulating the gas pressure of the gas outlet.

3. The novel hand-held water jet cutting gun of claim 2, wherein:

a high-pressure gauge (28) is arranged on the pressure reducing valve (26), and a measuring port of the high-pressure gauge (28) is communicated with the inside of the high-pressure gas cylinder (25).

4. A novel hand-held water jet cutting gun as claimed in claim 3, wherein:

a hole is formed in the set position of the left end of the gun body (1), the hole is communicated with a cavity on the left side of the gun body (1), and a pressure measuring port of a low-pressure gauge (29) is connected with the formed hole from the outside of the gun body (1).

5. The novel hand-held water jet cutting gun of claim 4, wherein:

a hole at the right end of the tappet rod (8) is hinged with a hole shaft at the lower part of the air pressure control trigger (9), and the left end of the tappet rod (8) is abutted to a set position on the rear handle (6); the tappet (8) is manually operated, and the tappet (8) is operated to rotate and is disengaged from the contact with the set position of the rear handle (6).

6. The novel hand-held water jet cutting gun of claim 5, wherein:

a hole is formed in a set position at the lower part of the gun body (1), the hole is communicated with a cavity of the gun body (1) and is positioned between the second surface (31) and the third surface (33); the sound receiving hole of the silencer (10) is connected with the opened hole from the outside of the gun body (1).

Technical Field

The invention belongs to the technical field of water jet cutting, and particularly relates to a novel handheld water jet cutting gun.

Background

The water jet cutting technology has the characteristics of no heat effect, no deformation, no slag adhering, no ablation, no change of the physical and chemical properties of materials, small cutting gap and cooling cutting, and is widely applied to various industries.

No abrasive input control switch is arranged on the existing handheld water cutting equipment body, and in water cutting operation, the abrasive input control switch can often meet the condition that a sand mixing pipe is blocked, so that water cannot be sprayed out under the condition, and the water can enter an abrasive conveying pipe. The abrasive material becomes wet and becomes mixed into a ball after wetting, so that the abrasive material cannot be used. At this point, the abrasive feed tube must be cleaned again to remove the wetted abrasive, or the water cutting apparatus cannot be operated further. At present, the abrasive of the handheld water cutting equipment is controlled by people except operators, the operators are assisted to find the problem, and the operators are not more direct, so that the delayed closing can happen when the opening of the abrasive conveying is controlled, and the normal use of the water cutting equipment is influenced.

Disclosure of Invention

Aiming at the defect that the handheld cutting equipment in the prior art has water jet opening and closing delay, the invention provides the switch which can realize that a gun holder controls the supply of the abrasive material by self, and solves the potential safety hazard in the prior art.

The invention has the advantages that: the operator controls the conveying of the abrasive materials by himself, the operation delay is reduced, the phenomena of blockage of the sand mixing pipe and wetting of the abrasive materials in the abrasive material conveying pipe are reduced, and the automatic grinding machine is safe and reliable. The invention has the advantages of no electrical connection, and can work in flammable and explosive occasions.

Technical scheme

A novel hand-held water jet cutting gun includes: the pneumatic control type abrasive gun comprises a gun body, a valve core, a tappet, a pneumatic control trigger, a front handle, a lower abrasive conveying pipe, an abrasive control valve trigger, an upper abrasive conveying pipe, a gun head assembly, a valve needle, a water inlet valve body, a piston, a high-pressure gas cylinder and a pressure reducing valve. Wherein the gun body and the rear handle are integrated.

A hole is formed above the gun body and is communicated with a left cavity in the gun body, and external high-pressure gas enters the left cavity in the gun body from the hole. A hole is arranged at a set position below the gun body and is communicated with the left cavity and the right cavity in the gun body in a crossing way. The first spring is placed in the hole and abuts against the bottom end of the hole. The sealing ring is placed in the hole and abutted against the step in the hole, the upper end of the valve core is placed in the hole and abutted against the lower end of the first spring, and the sealing ring is sleeved on the cylindrical surface of the upper portion of the valve core and is in sealing sleeve connection. The guide sleeve is arranged on the step at the bottom of the central hole of the sleeve and is fixedly connected. The guide sleeve and the central hole of the sleeve are sleeved on the lower part of the valve core and are placed in the hole to be fixedly connected, and the upper end face of the sleeve is abutted to the sealing ring. The valve core moves upwards to a set position, and after the small section part of the valve core is separated from the sealing of the sealing ring, the left cavity and the right cavity in the gun body are communicated. The valve core moves downwards, the large section part at the upper part of the valve core is in sealing connection with the sealing ring, and the left cavity and the right cavity of the gun body are separated from each other.

The upper end hole of the air pressure control trigger is hinged with a set through hole shaft on the lower part of the gun body, and the middle hole of the air pressure control trigger is hinged with a through hole shaft on the lower end of the valve core.

The third spring is put into from the right-hand member hole of body of a gun, and the left end butt second face on the body of a gun of third spring, the right-hand member hole of body of a gun is put into to the left end of piston to pass the second face left, the left end and the second face of piston are adjacent. The left end surface of the cylindrical surface in the middle of the piston is partially abutted against the right end of the third spring and penetrates through the third surface leftwards. The left end face of the maximum cylindrical surface in the middle of the piston is correspondingly adjacent to the third surface on the gun body. The cylinder of piston and the interior cylinder sliding connection in the hole that the cooperation was gone up on the body of a gun, the cylinder on the left side of piston and the connection of the hole that interior cylinder sliding fit between first face and the second face connected be sealing connection.

The horizontal center hole of the piston is communicated with the right end face side of the maximum cylinder surface of the piston. The left end of the water inlet valve body is arranged in the right port of the gun body, the left end cylindrical surface of the water inlet valve body is fixedly connected with the inner cylindrical surface of the right port of the gun body, and the cylindrical part on the right side of the maximum cylindrical surface of the piston is arranged in the central hole of the water inlet valve body. The central part of the left surface of the water inlet valve body is provided with a pit, and the diameter of the pit is larger than that of the cylindrical surface of the right rod of the maximum cylindrical surface of the piston.

The sealing sleeve is arranged in the central hole of the water inlet valve body from the right end hole of the water inlet valve body and is abutted against the boss arranged in the hole. The outer main surface of the sealing sleeve is connected with the corresponding hole wall in a sealing mode. The left end of the valve needle is arranged in the central hole of the water inlet valve body and penetrates through the central hole of the sealing sleeve. The inner cylindrical surface of the central hole of the sealing sleeve is connected with the cylindrical surface of the left side rod of the valve needle in a sealing way. The middle part of the valve needle is a cylindrical surface with the diameter larger than that of the rods on the two sides of the valve needle and is connected with the hole wall corresponding to the water inlet valve body in a sliding fit manner. A plurality of grooves are formed in the cylindrical surface of the valve needle with the large diameter in the middle, the grooves are in the axis direction of the valve needle and are communicated with the two sides of the large cylindrical surface in the middle of the valve needle.

The set position of the water inlet valve body is provided with a hole, the ultrahigh pressure hose is connected with the outside of the hole, and the hole is communicated with the central hole of the water inlet valve body and is positioned in a space with equal diameter contacted with the outer cylindrical surface of the sealing sleeve.

The left end of the gun head assembly is arranged in the right end hole of the water inlet valve body and is fixedly connected with the water inlet valve body. The end part of the valve needle right-end cone corresponds to the center of the gun head assembly left-end hole, and the diameter of the valve needle right-side cylindrical surface is larger than that of the gun head assembly left-end hole. The method is characterized in that:

the upper end of the front handle is fixedly connected with a set position at the lower part of the water inlet valve body. A plurality of guide holes are formed in the left side of the front handle, the lower ends of a plurality of guide columns penetrate through the left side of the front handle, and the heads of the upper ends of the guide columns are adjacent to steps in the left hole of the front handle to prevent the guide columns from penetrating through the corresponding holes. The lower part of guide post is cup jointed to a plurality of second springs correspondence respectively, and the terminal surface on the guiding hole right side that the front handle seted up is supported to the upper end butt of a plurality of second springs.

The abrasive control valve trigger is placed into a cavity arranged at the right part of the front handle, and the end surface set at the left side of the abrasive control valve trigger is connected with the lower ends of the guide columns and is abutted against the lower ends of the second springs. The abrasive material control valve trigger is pressed, slides along the axis direction of the guide post, and is provided with a limiting device on the front handle to limit the abrasive material control valve trigger to slide out of the front handle.

The trigger of the abrasive control valve is provided with a hole, and the upper port of the hole is clamped with an abrasive sealing ring. The upper end surface of the abrasive sealing ring is abutted against the adjacent surface of the abrasive control valve trigger, which is adjacent to the front handle. The grinding material control valve trigger is pressed to a set position, and the opening of the grinding material sealing ring is communicated with a hole formed in the upper portion of the front handle.

The middle part of the gun head assembly is provided with a hole which is communicated with a sand mixing cavity of a central hole of the gun head assembly. One end of the lower abrasive conveying pipe is connected with the lower end hole of the abrasive control valve trigger, one end of the upper abrasive conveying pipe is connected with the upper end hole of the front handle, and the other end of the upper abrasive conveying pipe is connected with a hole formed in the middle of the gun head assembly. When the abrasive control valve trigger arranged on the front handle is pressed to a set position, the lower abrasive conveying pipe is communicated with the sand mixing cavity of the central hole of the gun head assembly.

The high-pressure gas cylinder is fixedly arranged at a set position on the upper part of the gun body by a high-pressure gas cylinder fixing band, the inlet of the pressure reducing valve is communicated with high-pressure gas in the high-pressure gas cylinder, the outlet of the pressure reducing valve is connected to the gun body, a hole is formed above the gun body, and the hole is communicated with a left cavity in the gun body. The pressure regulating handle on the pressure reducing valve is used for regulating the gas pressure of a gas outlet of the pressure reducing valve.

The pressure reducing valve is provided with a high-pressure gauge, and a measuring port of the high-pressure gauge is communicated with the inside of the high-pressure gas cylinder.

The set position of the left end of the gun body is provided with a hole which is communicated with the cavity on the left side of the gun body, and the pressure measuring port of the low-pressure gauge is connected with the hole from the outside of the gun body.

The right end hole of the tappet is hinged with a hole shaft at the lower part of the air pressure control trigger, and the left end of the tappet is abutted to a set position on the rear handle. And manually operating the tappet to rotate and disengage from the abutment on the set position of the rear handle.

The lower part of the gun body is provided with a hole which is communicated with the cavity of the gun body and is positioned between the second surface and the third surface. The sound receiving hole of the silencer is connected with the hole formed from the outside of the gun body.

The advantages of the invention are embodied in: the single hand-held operation reduces the operation time delay under the condition that does not need other people's complex, avoids mixing the jam of sand pipe and the abrasive material is soaked in water entering abrasive material conveying pipe.

Because no electric elements are formed, no spark is generated in the operation process, and the device is suitable for being used in flammable and explosive environments.

The sealing ring, the silencer, the lower grinding material conveying pipe, the upper grinding material conveying pipe, the gun head assembly, the sealing sleeve, the high-pressure gas cylinder, the pressure reducing valve, the high-pressure gauge and the low-pressure gauge are commercially available products, and cost is reduced.

Drawings

FIG. 1 is an assembled schematic view of a novel hand-held water jet cutting gun;

FIG. 2 is a schematic external view of a novel hand-held water jet cutting gun;

FIG. 3 is an enlarged partial schematic view I of FIG. 1;

FIG. 4 is an enlarged partial schematic view II of FIG. 1;

FIG. 5 is an enlarged partial schematic view III of FIG. 1;

FIG. 6 is a schematic view of the gun body;

fig. 7 is a schematic structural view of the lance tip assembly.

Detailed Description