WO2022062097A1

WO2022062097A1 - Solid co2 cleaning blasting device

Info

Publication number: WO2022062097A1
Application number: PCT/CN2020/127622
Authority: WO
Inventors: 洪昭斌; 袁和平; 陈水宣; 马林
Original assignee: 厦门理工学院
Priority date: 2020-09-27
Filing date: 2020-11-09
Publication date: 2022-03-31
Also published as: CN112206938A; CN112206938B

Abstract

A solid CO₂ cleaning blasting nozzle device, comprising a gun barrel (1) and a gun handle (2) connected to the gun barrel (1). One end of the gun barrel (1) is provided with a blasting nozzle (3), and the blasting nozzle (3) is provided with an air ice inlet (31) communicated with the inside of the gun barrel (1). The gun barrel (1) comprises a connecting tube (11) connected to the gun handle (2) and a nozzle tube (12) penetrating through the connecting tube (11); one end of the nozzle tube (12) is connected to and communicated with the blasting nozzle (3); an elastic member (113) for cushioning the blast force of a blast tube is provided in the connecting tube (11); the connecting tube (11) is provided with a thrust device (4) for providing recoil force; a temperature-isolating layer (111) is provided on the inner wall of the connecting tube (11); the gun handle (2) is provided with a thermal insulation sleeve (21), and a thermal insulation sleeve heating member (22) is provided in the gun handle (2). The arrangement of a cushioning member can reduce recoil force, and a user can comfortably hold the handle by means of the thermal insulation sleeve heating member, thereby avoiding the user from suffering cold and fatigue, and having the effect of improving use comfort.

Description

A solid-state CO2 cleaning and spraying device

technical field

The invention relates to the technical field of dry ice cleaning, and more particularly, to a solid-state CO2 cleaning and spraying device.

Background technique

Dry ice cleaning is a method of cleaning dirt. Dry ice cleaning (solid carbon dioxide cleaning) is called cold spray. It uses compressed air as power and carrier, and uses dry ice particles as accelerated particles. Cleaning the surface of the object, using the momentum change (Δmv), sublimation, melting and other energy conversion of the high-speed moving solid dry ice particles, the dirt, oil, residual impurities on the surface of the cleaned object are rapidly frozen, so as to condense, embrittle, and peel off. At the same time, it is removed with the airflow. In order to facilitate the operation and cleaning of the existing solid carbon dioxide cleaning machine, a spray gun is usually configured, and a hand-held spray gun is used for use.

For example, the Chinese patent with the authorization announcement number of CN205570610U and the announcement date of 2016.09.14 discloses an automatic self-locking dry ice cleaning spray gun, including a gun barrel and a gun handle, and the gun handle is provided with a control wire socket and a switch button, It also includes a trigger, one end of the trigger is hinged with the gun handle, and the other end is provided with a limit block, one end of the limit block is hinged with the trigger, and the other end is in contact with the gun handle, and the switch button is located at the hinge of the limit block and the trigger. between the ends.

By holding the handle of the gun and controlling the switch button, dry ice can be blasted through the barrel to clean the object. However, the temperature of dry ice is usually low, the user directly holds the handle of the gun, and it is easy to be fatigued by freezing after long-term use, and the recoil force of the spray gun is large when spraying, and the user needs a large holding force when using it, and it is easy to be tired after long-term use. It is time-consuming and labor-intensive for the user.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of the present invention is to provide a solid CO2 cleaning and spraying device, which can reduce the recoil force, provide the user with a comfortable handle to hold the gun, avoid being fatigued by freezing, and have the effect of improving the comfort of use. .

For achieving the above object, the present invention provides the following technical solutions:

A solid-state CO2 cleaning nozzle device, comprising a gun barrel and a gun handle connected to the gun barrel, one end of the gun barrel is provided with a nozzle, the nozzle is provided with an air ice inlet communicated with the inside of the barrel, the gun The pipe includes a connecting pipe connected with the gun handle and a nozzle pipe passing through the connecting pipe, one end of the nozzle pipe is connected and communicated with the spray head, an elastic member for buffering the spray force of the spray pipe is arranged in the connecting pipe, and the The connecting pipe is provided with a thrust device for providing recoil force, the inner wall of the connecting pipe is provided with a thermal insulation layer, the gun handle is provided with a thermal insulation jacket, and the thermal insulation jacket heating element is arranged in the gun handle.

Further settings: the inner wall of the connecting pipe is provided with a sliding cavity, the outer wall of the nozzle pipe is fixed with a limit ring, the limit ring is slidably arranged on the sliding cavity, the elastic member is set as a buffer spring, the buffer The spring is sleeved outside the nozzle tube, and the two ends of the buffer spring are respectively connected to the limiting ring and the cavity bottom of the sliding cavity.

It is further provided that a micro pressure generator is arranged on the limit ring, the pressure generator is connected with a battery, the battery is connected with the heating element of the heat preservation jacket, and the battery is connected with a controller for energizing the controller.

Further setting: the heat preservation and heating element is set as an electric heating tube, and a temperature regulator is arranged on the electric heating tube, and the operation end of the temperature regulator is arranged on the side wall of the top of the gun handle.

Further arrangement: the thrust device comprises a push ring arranged on the connecting pipe, a feed pipe connected with the push ring and a feed valve arranged on the feed pipe, the push ring is slidably sleeved on the connecting pipe, and The side wall of the push ring is provided with a limiting piece, and the outer side wall of the nozzle tube is provided with a positioning piece, the limiting piece is in contact with the side of the positioning piece away from the nozzle, and the feeding of the feeding pipe The direction is opposite to the feeding direction of the nozzle tube, and the discharge end of the feed tube is connected to the feed end of the nozzle tube.

Further setting: a buffer cushion layer is arranged on the surface of the limiting piece and the positioning piece opposite to each other.

Further arrangement: the connecting pipe is provided with a small hydraulic cylinder, the piston rod of the small hydraulic cylinder is connected with the push ring, and the pushing direction of the piston rod of the small hydraulic cylinder is opposite to the recoil direction of the nozzle pipe.

Further arrangement: one end of the spray head is rotatably connected to the nozzle pipe through a rotating wheel, the spray head is detachably provided with an angle nozzle, and a drive assembly for driving the rotating wheel to rotate is arranged between the connecting pipe and the rotating wheel.

Further setting: the drive assembly includes a worm wheel that is positioned and sleeved on the rotating wheel, a worm that engages with the worm wheel, and a holding wheel that is arranged at one end of the worm away from the worm wheel, the connecting pipe is provided with a fixing frame, and the worm is rotatably connected to the On the fixing frame, the holding wheel is rotatably arranged on the fixing frame.

Further arrangement: a protective sleeve is arranged between the connecting pipe and the spray head, and the protective sleeve is sleeved on the worm.

By adopting the above-mentioned technical scheme, the present invention has the following advantages compared with the prior art:

1. Through the cooperation of the connecting pipe and the nozzle pipe, when the nozzle pipe is sprayed to the nozzle, the elastic member can be used to provide a buffer force to relieve the recoil force, so as to reduce the influence of the recoil force, and has the effect of improving its use comfort;

2. The thrust device provided can provide recoil force to buffer the recoil force, further reduce the influence of the recoil force, facilitate the use of dry ice jet cleaning, and has the effect of improving the comfort of its use;

3. The thermal insulation layer can prevent the dry ice temperature from being transferred to the gun handle, and cooperate with the heating element of the thermal insulation jacket to heat the thermal insulation jacket, which can improve the warmth of the gun grip and improve the comfort of the gun grip;

4. Through the set pressure generator, the kinetic energy of the recoil can be converted into electrical energy and stored on the battery, so as to provide the use of the heating element of the thermal insulation jacket, which can rationally utilize the energy and improve the effect of energy saving and environmental protection;

5. The small hydraulic cylinder can provide support when the anti-recoil force of the thrust device is weak, so as to provide enough buffering force of the recoil force to reduce the influence of the recoil force and improve the comfort of use;

6. By controlling the rotation of the holding wheel to drive the worm to rotate, it can drive the worm wheel and the rotating wheel to rotate, thereby driving the nozzle to rotate, so that the installed angle nozzle can be reversed to spray, which is convenient to adjust the spray angle and improve the convenience of use.

Description of drawings

Fig. 1 is the structural representation of solid CO2 cleaning nozzle device;

Fig. 2 is a schematic diagram of a part of the internal structure of the solid-state CO2 cleaning nozzle device;

Fig. 3 is the enlarged schematic diagram of A place in Fig. 2;

Fig. 4 is a schematic cross-sectional view of a connecting pipe.

In the figure: 1, barrel; 11, connecting pipe; 111, insulation layer; 112, sliding cavity; 113, elastic part; 12, nozzle tube; 121, limit ring; 122, positioning piece; 2, gun handle; 21, thermal insulation jacket; 22, thermal insulation jacket heating element; 221, thermostat; 3, nozzle; 31, gas ice inlet; 32, rotating wheel; 33, angle nozzle; 4, thrust device; 41, push ring; 42, Feed pipe; 43, feed valve; 44, limit piece; 441, cushion; 5, pressure generator; 6, battery; 7, controller; 8, hydraulic cylinder; 9, drive assembly; 91, worm gear ; 92, worm; 921, protective cover; 93, holding wheel; 10, fixing frame.

detailed description

The solid CO2 cleaning nozzle device will be further described with reference to FIGS. 1 to 4 .

A solid-state CO2 cleaning nozzle device, as shown in Figure 1, comprises a gun barrel 1 and a gun handle 2 connected to the gun barrel 1, one end of the gun barrel 1 is provided with a nozzle 3, and the nozzle 3 is provided with the inside of the gun barrel 1. The connected air ice inlet 31 pushes the dry ice into the air ice inlet 31 by pneumatic, so as to enter the spray head 3 and spray out through the gun barrel 1, so as to be used for cleaning.

As shown in FIG. 1 , the gun barrel 1 includes a connecting pipe 11 connected to the gun handle 2 and a nozzle pipe 12 passing through the connecting pipe 11. One end of the nozzle pipe 12 is connected and communicated with the spray head 3, and the connecting pipe 11 is provided with a The elastic member 113 for buffering the spray force of the spray pipe is provided, and the connecting pipe 11 is provided with a thrust device 4 for providing recoil force. The elastic member 113 is used to buffer the recoil force of the jet pipe when spraying, and the thrust device 4 is used to provide a balance force of the recoil force, which can reduce the recoil force and improve the convenience of the user.

As shown in FIG. 1 and FIG. 2 , the thrust device 4 includes a push ring 41 provided on the connecting pipe 11 , a feed pipe 42 connected with the push ring 41 , and a feed valve 43 provided on the feed pipe 42 . Wherein, the push ring 41 is slidably sleeved on the connecting pipe 11, and the side wall of the push ring 41 is provided with a limiting piece 44, and the outer side wall of the nozzle tube 12 is provided with a positioning piece 122, and the limiting piece 44 is in contact with the positioning piece 44. On the side of the sheet 122 away from the nozzle 3 , the feeding direction of the feeding pipe 42 is opposite to the feeding direction of the nozzle pipe 12 , and the discharge end of the feeding pipe 42 is connected to the feeding end of the nozzle pipe 12 . By controlling the opening of the feeding valve 43, the material can be fed into the feeding pipe 42, so that the push ring 41 generates the opposite force from the recoil force of the injection pipe, so as to balance the recoil force during injection and better hold it. At the same time, the material fed by the feeding pipe 42 is sent into the nozzle pipe 12 for spraying, so as to be used in combination with the feeding of the gas ice inlet 31, and the reaction force between the feeding pipe 42 and the nozzle pipe 12 during the spraying process On the contrary, offset can be formed, the recoil force can be reduced, and it is convenient for the user to hold and use.

As shown in FIG. 2 and FIG. 3 , further, a cushion layer 441 is provided on the surface of the limiting piece 44 and the positioning piece 122 opposite to each other, which can reduce the rigid force when the two collide with each other and improve the stability of pushing. Among them, the small hydraulic cylinder 8 is fixed on the connecting pipe 11, the piston rod of the small hydraulic cylinder 8 is connected with the push ring 41, and the pushing direction of the piston rod of the small hydraulic cylinder 8 is opposite to the direction of the recoil force of the nozzle pipe 12. When the thrust of the device 4 is insufficient, the small hydraulic cylinder 8 is used to push the push ring 41 to provide support, so as to ensure no recoil when spraying, and improve the comfort of holding and using.

As shown in FIG. 2 , the inner wall of the connecting pipe 11 is provided with a sliding cavity 112 , the outer wall of the nozzle pipe 12 is fixed with a limit ring 121 , and the limit ring 121 is slidably arranged on the sliding cavity 112 , and the elastic member 113 is set as a buffer spring to buffer The spring is sleeved outside the nozzle tube 12, and the two ends of the buffer spring are respectively connected to the limit ring 121 and the cavity bottom of the sliding cavity 112, so that the limit ring 121 is pushed to squeeze the buffer spring under the action of the recoil force, and the buffer spring passes through the buffer spring. The elasticity provides cushioning force, which can reduce recoil and improve the comfort of holding and using.

As shown in FIG. 1 and FIG. 2 , one end of the spray head 3 is rotatably connected to the nozzle pipe 12 through a rotating wheel 32 , and an angle nozzle 33 is detachably provided on the spray head 3 , and a utility model is provided between the connecting pipe 11 and the rotating wheel 32 . The driving component 9 is used to drive the rotating wheel 32 to rotate, so as to adjust the spray angle, meet the cleaning requirements in different environments, and improve the convenience of use. Specifically, the drive assembly 9 includes a worm wheel 91 that is positioned and sleeved on the rotating wheel 32, a worm 92 that meshes with the worm wheel 91, and a holding wheel 93 that is provided at one end of the worm 92 away from the worm wheel 91. The connecting pipe 11 is provided with a fixing frame 10, The worm 92 is rotatably connected to the fixed frame 10, and the holding wheel 93 is rotatably arranged on the fixed frame 10. By controlling the rotation of the holding wheel 93 to drive the worm 92 to rotate, the worm wheel 91 can be driven to rotate, thereby driving the rotating wheel 32 to rotate and adjust the angle. The position of the nozzle 33 is convenient to adjust the spray angle. Wherein, a protective sleeve 921 is provided between the connecting pipe 11 and the nozzle 3, and the protective sleeve 921 is sleeved on the worm 92 to protect the worm 92 and avoid damage caused by impurities adhering to the screw during cleaning.

As shown in FIG. 1 and FIG. 4 , a thermal insulation layer 111 is provided on the inner wall of the connecting pipe 11 , a heat insulating jacket 21 is provided on the gun handle 2 , and a heat insulating jacket heating element 22 is provided in the gun handle 2 , which can be used for connecting the connecting pipe. 11 forms a thermal insulation to prevent the dry ice temperature from dissipating, and at the same time, the heating element is used to provide heat to the gun handle 2, and the heat preservation sleeve 21 can warm the user's hand, protect the user, and improve the comfort of the user to hold and use.

As shown in FIG. 1 and FIG. 2 , a miniature pressure generator 5 is provided on both the limiting ring 121 and the push ring 41 , the pressure generator 5 is connected with a battery 6 , and the battery 6 is connected with the heating element 22 of the heat preservation jacket, and The battery 6 is connected to the controller 7 for energizing the controller 7, which can use the recoil generated by the injection to push the limit ring 121, so as to use the micro pressure generator 5 to generate electricity and store it in the battery 6, which is convenient for supplying power to the heating element 22 of the insulation jacket use. Among them, the battery 6 itself has a certain amount of electric energy, the pressure generator 5 provides partial electric energy supplement to save energy consumption, and the battery 6 can be disassembled and replaced after long-term use to ensure sufficient electric energy supply for use. Specifically, the thermal insulation heating element is provided as an electric heating tube, and the electric heating tube is provided with a plurality of and evenly distributed in the gun handle 2 to provide thermal energy of the thermal insulation sleeve 21 and improve the grip comfort. A thermostat 221 is arranged on the electric heating tube, and the operating end of the thermostat 221 is arranged on the top side wall of the gun handle 2, so as to heat the grip portion of the gun handle 2, and the heating temperature can be adjusted by controlling the thermostat 221, Improve the convenience of use to improve the user's comfort.

Working principle: When in use, dry ice is transported into the nozzle tube 12, and the feeding is assisted by the feeding tube 42, so that the recoil force generated when the feeding tube 42 feeds acts on the push ring 41, and the dry ice in the nozzle tube 12 is sent. When sprayed from the nozzle 3, the recoil force of the nozzle tube 12 acts on the positioning piece 122 and the limit ring 121, and the recoil force of the push ring 41 is opposite to the recoil force of the positioning piece 122, so that the limit piece 44 connected to the push ring 41 collides with The recoil offset is performed on the positioning piece 122 . At the same time, the limit ring 121 is forced to squeeze the return spring, so that the return spring is compressed to generate an elastic force opposite to the recoil force for buffering, reducing the influence of the recoil force during the use of jet cleaning, and providing the power generation pressure of the pressure generator 5, thereby generating electric energy collection. The positioning piece 122 of the nozzle tube 12 on the battery 6 is convenient for heating the heating element 22 of the heat preservation jacket, and provides the comfort of holding the gun handle 2 to prevent the user from being fatigued by freezing. If the offset of the recoil force is weak, the hydraulic cylinder 8 is activated to push the push ring 41 to increase the magnitude of the reverse thrust, so as to further reduce the influence of the recoil force. Through the above solution, the present invention can effectively reduce the recoil force, provide the user with a comfortable grip of the handle 2, avoid being fatigued by freezing, and has the effect of improving the comfort of use.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

A solid-state CO2 cleaning nozzle device, comprising a gun barrel (1) and a gun handle (2) connected to the gun barrel (1), one end of the gun barrel (1) is provided with a nozzle (3), the nozzle ( 3) There is a gas ice inlet (31) communicating with the inside of the barrel (1), characterized in that the barrel (1) includes a connecting pipe (11) connected with the handle (2) and a A nozzle pipe (12) of the connecting pipe (11), one end of the nozzle pipe (12) is connected and communicated with the spray head (3), and an elastic member ( 113), and the connecting pipe (11) is provided with a thrust device (4) for providing recoil force, the inner wall of the connecting pipe (11) is provided with a thermal insulation layer (111), the handle (2) ) is provided with a thermal insulation jacket (21), and a thermal insulation jacket heating element (22) is arranged in the gun handle (2).
A solid-state CO2 cleaning nozzle device according to claim 1, characterized in that a sliding cavity (112) is provided on the inner wall of the connecting pipe (11), and a limit ring is fixed on the outer wall of the nozzle pipe (12). (121), the limiting ring (121) is slidably arranged on the sliding cavity (112), the elastic member (113) is arranged as a buffer spring, the buffer spring is sleeved outside the nozzle tube (12), and the Both ends of the buffer spring are respectively connected to the limiting ring (121) and the cavity bottom of the sliding cavity (112).
A solid-state CO2 cleaning nozzle device according to claim 2, characterized in that, a micro pressure generator (5) is provided on the limit ring (121), and the pressure generator (5) is connected with a battery ( 6), the accumulator (6) is connected to the heating element (22) of the heat preservation jacket, and the accumulator (6) is connected with a controller (7) for energizing the controller (7).
A solid-state CO2 cleaning nozzle device according to claim 3, characterized in that, the thermal insulation heating element is configured as an electric heating pipe, and a temperature regulator (221) is arranged on the electric heating pipe, and the temperature regulator (221) ) is arranged on the top side wall of the handle (2).
A solid-state CO2 cleaning nozzle device according to claim 1, characterized in that the thrust device (4) comprises a push ring (41) arranged on the connecting pipe (11), and a push ring (41) connected to the push ring (41). A feed pipe (42) and a feed valve (43) provided on the feed pipe (42), the push ring (41) is slidably sleeved on the connecting pipe (11), and the push ring (41) There is a limit piece (44) on the side wall of the nozzle tube (12), and a positioning piece (122) is provided on the outer side wall of the nozzle tube (12), and the limit piece (44) is in contact with the positioning piece (122) and away from the nozzle (122). 3) one side, the feeding direction of the feeding pipe (42) is opposite to the feeding direction of the nozzle pipe (12), and the discharge end of the feeding pipe (42) is connected to the nozzle pipe (12) on the feed end.
The solid-state CO2 cleaning nozzle device according to claim 5, characterized in that a buffer cushion layer (441) is provided on the surfaces of the limiting piece (44) and the positioning piece (122) opposite to each other.
A solid-state CO2 cleaning nozzle device according to claim 5, characterized in that a small hydraulic cylinder (8) is arranged on the connecting pipe (11), and the piston rod and the push ring of the small hydraulic cylinder (8) (41) is connected, and the pushing direction of the piston rod of the small hydraulic cylinder (8) is opposite to the recoil direction of the nozzle pipe (12).
A solid-state CO2 cleaning nozzle device according to claim 1, characterized in that, one end of the nozzle (3) is rotatably connected to the nozzle pipe (12) through a rotating wheel (32), and the nozzle (3) is rotatably connected to the nozzle pipe (12). An angle nozzle (33) is detachably provided, and a driving assembly (9) for driving the rotating wheel (32) to rotate is provided between the connecting pipe (11) and the rotating wheel (32).
A solid-state CO2 cleaning nozzle device according to claim 8, characterized in that, the drive assembly (9) comprises a worm wheel (91) positioned and sleeved on the rotating wheel (32), and a worm wheel (91) is engaged with the worm wheel (91). A worm (92) and a holding wheel (93) disposed at one end of the worm (92) away from the worm wheel (91), a fixing frame (10) is arranged on the connecting pipe (11), and the worm (92) is rotatably connected to the fixed On the frame (10), the holding wheel (93) is rotatably arranged on the fixing frame (10).
A solid-state CO2 cleaning nozzle device according to claim 9, wherein a protective sleeve (921) is provided between the connecting pipe (11) and the nozzle (3), and the protective sleeve (921) is sleeved on the worm (92).