Nozzle for dry ice cleaning

Abstract

The utility model discloses a nozzle for dry ice cleaning, and belongs to the technical field of dry ice cleaning. Comprising a nozzle body and a feeding pipe, an inlet of the nozzle body fixedly communicates with a material guiding pipe, the material guiding pipe and the feeding pipe are connected through a flange, two U-shaped bases are fixedly connected into the nozzle body, and the faces, away from an outlet of the nozzle body, of the two U-shaped bases are fixedly connected with first baffles; rotating shafts are rotatably mounted in the two U-shaped seats, rotating rollers are fixedly connected to the outer surfaces of the two rotating shafts, and through cooperation of the U-shaped seats, first baffles, the rotating rollers, the rotating shafts, second baffles, cavities, torsional springs and adjusting assemblies, when dirt on the surface of a workpiece is cleaned, the dirt on the surface of the workpiece is removed; the size of an outlet of the nozzle body can be adjusted according to the size of a workpiece, so that solid carbon dioxide crushed particles can be prevented from being sprayed to the periphery of the workpiece, and waste of the carbon dioxide crushed particles can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dry ice cleaning, in particular to a nozzle for dry ice cleaning. Background Art

[0002] Dry ice is solid carbon dioxide. Dry ice cleaning mainly sprays solid carbon dioxide particles onto the workpiece to be cleaned through high-pressure air. By using the physical reaction of temperature difference, different substances are separated at different contraction speeds, and the dirt is quickly and thoroughly peeled off from the surface of the object, so as to achieve a fast, efficient, safe, energy-saving and pollution-free cleaning effect.

[0003] Most of the existing nozzles for dry ice cleaning are not convenient for adjusting the size of the outlet according to the size of the workpiece. Therefore, when cleaning a relatively small workpiece, it is easy to spray the particles around the workpiece, resulting in waste of carbon dioxide particles. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that when the existing technology is used to clean a relatively small workpiece, it is easy to spray the particles around the workpiece, resulting in waste of carbon dioxide particles, and a nozzle for dry ice cleaning is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A nozzle for dry ice cleaning, including a nozzle body and a feed pipe. A guide pipe is fixedly communicated with the inlet of the nozzle body. The guide pipe and the feed pipe are connected by a flange. Two U-shaped seats are fixedly connected inside the nozzle body. A first baffle is fixedly connected to one side of each of the two U-shaped seats away from the outlet of the nozzle body. A rotating shaft is rotatably installed inside each of the two U-shaped seats. A rotating roller is fixedly connected to the outer surface of each of the two rotating shafts. A second baffle is fixedly connected to the outer surface of each of the two rotating rollers. A cavity is formed inside each of the two rotating rollers. A torsion spring is fixedly connected to the inside of each cavity, and the other end of the torsion spring is connected to the U-shaped seat. An adjusting assembly is arranged on the nozzle body for driving the two second baffles to rotate inward synchronously.

[0007] Preferably, the inlet of the nozzle body is circular in structure, and the outlet is rectangular in structure.

[0008] Preferably, the adjusting assembly includes two shells installed at the bottom of the nozzle body. A threaded rod is rotatably installed inside each of the two shells, and one end of each of the two threaded rods close to each other penetrates through the two shells and extends to the outside of the two shells.

[0009] Preferably, a knob is arranged between the two shells, and the two end faces of the knob are fixedly connected to one end of each of the two threaded rods close to each other.

[0010] Preferably, threaded plates are threadedly connected to the outer surfaces of the two threaded rods, and the two threaded plates are respectively slidably connected inside the two shells.

[0011] Preferably, connecting rods are fixedly connected to the mutually remote sides of the two threaded plates, and the mutually remote ends of the two connecting rods respectively penetrate through the two shells and extend into the inside of the nozzle body.

[0012] Preferably, pushing balls are fixedly connected to the mutually close ends of the two connecting rods, and the two pushing balls are respectively in contact with the mutually remote sides of the two second baffles.

[0013] Compared with the prior art, the present utility model provides a nozzle for dry ice cleaning, having the following beneficial effects:

[0014] Through the cooperation among the U-shaped seat, the first baffle, the rotating roller, the rotating shaft, the second baffle, the cavity, the torsion spring and the adjusting assembly, when cleaning the dirt on the surface of the workpiece, the size of the outlet of the nozzle body can be adjusted according to the size of the workpiece, so as to avoid spraying the solid carbon dioxide broken particles around the workpiece, and further avoid wasting the carbon dioxide broken particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 is a side view of the present utility model.

[0017] Figure 3 is a sectional view of the present utility model.

[0018] Figure 4 is a connection schematic diagram of the pushing ball and the second baffle of the present utility model.

[0019] Figure 5 is a sectional view of the present utility model.

[0020] Figure 6 is a hidden three-dimensional structural schematic diagram of the present utility model.

[0021] In the figure:

[0022] 1. Nozzle body; 2. Feed pipe; 3. Material guide pipe; 4. U-shaped seat; 5. First baffle; 6. Rotating roller; 7. Adjusting assembly; 701. Shell; 702. Threaded rod; 703. Knob; 704. Threaded plate; 705. Connecting rod; 706. Pushing ball; 8. Rotating shaft; 9. Second baffle; 10. Cavity; 11. Torsion spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Referring to Figures 1-5 , a nozzle for dry ice cleaning, including a nozzle body 1 and a feed pipe 2. A guide pipe 3 is fixedly connected to the inlet of the nozzle body 1. The guide pipe 3 and the feed pipe 2 are connected by a flange. Two U-shaped seats 4 are fixedly connected inside the nozzle body 1. On the side of the two U-shaped seats 4 away from the outlet of the nozzle body 1, a first baffle 5 is fixedly connected. Inside the two U-shaped seats 4, a rotating shaft 8 is rotatably installed. On the outer surface of the two rotating shafts 8, a rotating roller 6 is fixedly connected. On the outer surface of the two rotating rollers 6, a second baffle 9 is fixedly connected. Inside the two rotating rollers 6, a cavity 10 is opened. Inside each cavity 10, a torsion spring 11 is fixedly connected, and the other end of the torsion spring 11 is connected to the U-shaped seat 4; by setting the first baffle 5, the space between the second baffle 9 and the side wall of the nozzle body 1 can be blocked to prevent solid carbon dioxide particles from entering this part of the space. When cleaning the dirt on the surface of the workpiece, the solid carbon dioxide particles will pass through the feed pipe 2, the guide pipe 3 and between the two second baffles 9 inside the nozzle body 1 in sequence. In the initial state, the second baffle 9 is parallel to the side of the nozzle body 1. When driving the second baffle 9 to rotate inward, the outlet area of the nozzle body 1 will be reduced, and the rotation of the second baffle 9 will also cause the torsion spring 11 to deform.

[0025] The inlet of the nozzle body 1 is a circular structure, and the outlet is a rectangular structure; the nozzle body 1 is made by a bending process.

[0026] An adjustment component 7 for driving the two second baffles 9 to rotate inward synchronously is arranged on the nozzle body 1. The adjustment component 7 includes two shells 701 installed at the bottom of the nozzle body 1. Inside the two shells 701, a threaded rod 702 is rotatably installed, and the ends of the two threaded rods 702 close to each other respectively penetrate through the two shells 701 and extend to the outside of the two shells 701. The two shells 701 are symmetric about the center of the nozzle body 1.

[0027] A knob 703 is arranged between the two shells 701, and the two end faces of the knob 703 are respectively fixedly connected to the ends of the two threaded rods 702 close to each other. When the knob 703 is turned, the two threaded rods 702 can be driven to rotate synchronously.

[0028] The outer surfaces of the two threaded rods 702 are both threadedly connected with threaded plates 704, and the two threaded plates 704 are respectively slidably connected inside the two shells 701; the threading directions provided on the two threaded rods 702 are opposite, and when driving the two threaded rods 702 to rotate synchronously, the two threaded plates 704 can be driven to horizontally move in opposite directions.

[0029] One end of each of the two connecting rods 705 is fixedly connected to one side of the two threaded plates 704 facing away from each other, and the other ends of the two connecting rods 705 facing away from each other respectively penetrate through the two shells 701 and extend into the inside of the nozzle body 1; the movement of the threaded plate 704 can drive the corresponding movement of the connecting rod 705, and circular holes adapted to the connecting rod 705 are provided on both the shell 701 and the nozzle body 1.

[0030] One end of each of the two connecting rods 705 facing each other is fixedly connected with a ball pusher 706, and the two ball pushers 706 are respectively in contact with one side of the two second baffles 9 facing away from each other; when adjusting the outlet size of the nozzle body 1, rotating the knob 703 in the positive direction, the knob 703 can drive the two threaded rods 702 to rotate synchronously in the positive direction, the two threaded rods 702 rotating in the positive direction can drive the two threaded plates 704 to move in the direction of approaching each other, the movement of the threaded plate 704 can drive the corresponding movement of the connecting rod 705 and the ball pusher 706, and the inward movement of the two ball pushers 706 can push the two second baffles 9 to rotate inward, and the inward rotation of the two second baffles 9 can reduce the outlet area of the nozzle body 1, so that when cleaning a smaller workpiece, it is possible to avoid spraying solid carbon dioxide particles around the workpiece, and further avoid wasting carbon dioxide particles.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A nozzle for dry ice cleaning, comprising a nozzle body (1) and a feed pipe (2), characterized in that: A material guide pipe (3) is fixedly connected to the inlet of the nozzle body (1). The material guide pipe (3) is connected to the feed pipe (2) through a flange. Two U-shaped seats (4) are fixedly connected inside the nozzle body (1). On one side of the two U-shaped seats (4) away from the outlet of the nozzle body (1), a first baffle (5) is fixedly connected. A rotating shaft (8) is rotatably installed inside each of the two U-shaped seats (4). A rotating roller (6) is fixedly connected to the outer surface of each of the two rotating shafts (8). A second baffle (9) is fixedly connected to the outer surface of each of the two rotating rollers (6). A cavity (10) is formed inside each of the two rotating rollers (6). A torsion spring (11) is fixedly connected inside each cavity (10), and the other end of the torsion spring (11) is connected to the U-shaped seat (4). An adjusting assembly (7) is arranged on the nozzle body (1) for driving the two second baffles (9) to rotate inward synchronously.

2. The nozzle for dry ice cleaning according to claim 1, characterized in that, The inlet of the nozzle body (1) is of a circular structure, and the outlet is of a rectangular structure.

3. The nozzle for dry ice cleaning according to claim 1, characterized in that, The adjusting assembly (7) includes two shells (701) installed at the bottom of the nozzle body (1). A threaded rod (702) is rotatably installed inside each of the two shells (701), and the ends of the two threaded rods (702) close to each other respectively penetrate through the two shells (701) and extend to the outside of the two shells (701).

4. The nozzle for dry ice cleaning according to claim 3, characterized in that, A knob (703) is arranged between the two shells (701), and the two end faces of the knob (703) are respectively fixedly connected to the ends of the two threaded rods (702) close to each other.

5. The nozzle for dry ice cleaning according to claim 4, wherein, Threaded plates (704) are respectively threadedly connected to the outer surfaces of the two threaded rods (702), and the two threaded plates (704) are respectively slidably connected inside the two shells (701).

6. The nozzle for dry ice cleaning according to claim 5, characterized in that, Connecting rods (705) are fixedly connected to the sides of the two threaded plates (704) away from each other. The ends of the two connecting rods (705) away from each other respectively penetrate through the two shells (701) and extend into the nozzle body (1).

7. A nozzle for dry ice cleaning according to claim 6, wherein Pushing balls (706) are fixedly connected to the ends of the two connecting rods (705) close to each other. The two pushing balls (706) are respectively in contact with the sides of the two second baffles (9) away from each other.

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