A nozzle anti-fouling device suitable for unmanned equipment spraying operation
By designing a nozzle anti-fouling device in unmanned equipment spraying operations, using a guide hood and a grid-type exhaust channel to guide the directional diffusion of paint mist, and combining it with an extrusion assembly to enhance connection stability, the problem of paint mist splashing from the nozzle atomization was solved, and the stability of the equipment and sensor performance were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI PROVINCE FREEWAY IND DEV
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-19
Smart Images

Figure CN224371707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned equipment spraying operation technology, specifically to a nozzle anti-fouling device suitable for unmanned equipment spraying operations. Background Technology
[0002] Unmanned equipment is an automated robot that can climb vertical walls and complete tasks. Because it can work on vertical walls, exceeding human limits, it is also known as extreme work robot or wall-moving robot abroad.
[0003] In current unmanned spraying operations, the paint mist generated by the nozzle atomization is prone to splashing back onto the machine surface under the influence of the unmanned equipment's operation and ambient wind, leading to the following problems:
[0004] 1. Paint splattering onto the tires or tracks of unmanned equipment can reduce friction and cause slippage.
[0005] 2. Paint mist is difficult to clean after it adheres, affecting the appearance of the equipment and the performance of the sensors;
[0006] 3. Traditional protective covers are too simple and heavy, affecting the stability of unmanned equipment. Utility Model Content
[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a nozzle anti-fouling device suitable for unmanned equipment spraying operations, thereby improving the stability of unmanned equipment.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a nozzle anti-fouling device suitable for unmanned equipment spraying operations, comprising a nozzle base body, a flow guide for nozzle anti-fouling in unmanned equipment spraying operations, a connecting assembly, and a grid-type exhaust channel; the nozzle base body is connected to the unmanned equipment; the flow guide is coaxially mounted with the nozzle and fixed to the nozzle base by the connecting assembly; the front end of the flow guide has a tapered structure, and the rear end expands into a trumpet shape; the side wall of the flow guide is provided with a grid-type exhaust channel that allows airflow to be discharged laterally.
[0009] Preferably, the flow guide is made of high-density polyethylene or polypropylene resin, and the inner and outer walls of the flow guide are covered with self-adhesive films.
[0010] Preferably, the connecting assembly includes an internal threaded groove and an external threaded cylinder; the nozzle base body has an internal threaded groove on the side near the flow guide; the external threaded cylinder is fixed on the flow guide and threadedly connected to the internal threaded groove.
[0011] Preferably, the grille-type exhaust channel is a multi-layered staggered diamond-shaped through hole, with the channel axis forming an angle of 15-30° with the crawling direction of the unmanned equipment.
[0012] Preferably, it also includes an extrusion assembly; the extrusion assembly is arranged on the flow guide.
[0013] Preferably, the extrusion assembly includes a fixed sleeve, a movable sleeve, and extrusion springs; the fixed sleeve is sleeved on the nozzle base body; the movable sleeve is sleeved on the flow guide; a plurality of extrusion springs are fixed in a ring array on the side of the fixed sleeve near the movable sleeve, and the ends of the extrusion springs are in contact with the movable sleeve.
[0014] Preferably, the extrusion block has an arc-shaped structure, the cross-section of the extrusion block has a V-shaped structure, and the tips of the extrusion blocks are arranged opposite each other.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model, by setting up a nozzle base body, a guide shroud, a connecting component, and a grid-type exhaust channel, selects a suitable guide shroud according to the spraying scenario. Then, the external threaded cylinder is threadedly connected to the internal threaded groove, and the guide shroud is rotated to move it closer to the nozzle base body until the end face of the external threaded cylinder contacts the inner wall of the internal threaded groove. Subsequently, the nozzle base body is connected to the unmanned equipment. The guide shroud, which uses a lightweight and corrosion-resistant composite material, has a constricted front end, and expands into a flared shape at the end, can guide the paint mist to diffuse in a directional manner and reduce back splashing. The grid-type exhaust channel can balance the internal and external air pressure and reduce resistance. Compared with the prior art, this utility model has a simple and reasonable structure and ingenious design. Without affecting the stability of the equipment (especially the influence of wind), it prevents the sprayed paint from splashing onto the body of the unmanned equipment and the tires or tracks of the inverted robot, causing contamination or slippage.
[0017] 2. By setting up a compression component, when the movable sleeve contacts the end of the compression spring block, the movable sleeve will compress the compression spring block, causing the compression spring block to deform under force. The force generated when the compression spring block deforms can make the threaded connection between the external threaded cylinder and the internal threaded groove more stable, thereby improving the practicality of this utility model. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0020] Figure 3 This is a partial structural breakdown diagram of the present invention;
[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of point A in the middle.
[0022] In the picture:
[0023] 1. Nozzle base body; 2. Flow guide; 3. Connecting assembly; 4. Grille-type exhaust channel; 5. Extrusion assembly; 301. Internal threaded groove; 302. External threaded cylinder; 501. Fixed sleeve; 502. Movable sleeve; 503. Extrusion spring block. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1 to 4 This utility model provides a technical solution: a nozzle anti-fouling device suitable for unmanned equipment spraying operations, including a nozzle base body 1, a flow guide 2 for nozzle anti-fouling in unmanned equipment spraying operations, a connecting assembly 3, and a grid-type exhaust channel 4; the nozzle base body 1 is connected to the unmanned equipment; the flow guide 2 is coaxially installed with the nozzle and fixed to the nozzle base by the connecting assembly 3; the front end of the flow guide 2 has a tapered structure, and the rear end expands into a trumpet shape; the side wall of the flow guide 2 is provided with a grid-type exhaust channel 4 that allows airflow to be discharged laterally; the flow guide 2 is made of high-density polyethylene. It may be made of polypropylene resin, and the inner and outer walls of the flow guide 2 are self-adhesive films for easy replacement; the connecting component 3 includes an inner threaded groove 301 and an outer threaded cylinder 302; the nozzle base body 1 has an inner threaded groove 301 on the side near the flow guide 2; the outer threaded cylinder 302 is fixedly connected to the flow guide 2 and threadedly connected to the inner threaded groove 301; the connecting component 3 may also be a spring clip with an O-ring seal; the grid-type exhaust channel 4 is a multi-layered staggered diamond-shaped through hole, the axis of the channel is at an angle of 15-30° with the crawling direction of the unmanned equipment, and the grid wall thickness is 0.8-1.2mm.
[0026] This invention comprises a nozzle base body 1, a guide shroud 2, a connecting component 3, and a grid-type exhaust channel 4. The appropriate guide shroud 2 is selected based on the spraying scenario. Then, the external threaded cylinder 302 is threadedly connected to the internal threaded groove 301, and the guide shroud 2 is rotated to move closer to the nozzle base body 1 until the end face of the external threaded cylinder 302 contacts the inner wall of the internal threaded groove 301. Subsequently, the nozzle base body 1 is connected to the unmanned equipment. The guide shroud 2, made of lightweight, corrosion-resistant composite material, with a tapered front end and a flared end, guides the paint mist to diffuse in a directional manner, reducing backsplashing. The grid-type exhaust channel 4 balances the internal and external air pressure, reducing resistance. Compared to existing technologies, this invention has a simple and reasonable structure and ingenious design. Without affecting the stability of the equipment (especially the impact of wind), it prevents sprayed paint from splashing onto the unmanned equipment body and tires or tracks, causing contamination or slippage on the inverted robot.
[0027] As a preferred embodiment, it also includes an extrusion assembly 5; the extrusion assembly 5 is arranged on the flow guide 2; the extrusion assembly 5 includes a fixed sleeve 501, a movable sleeve 502 and extrusion springs 503; the fixed sleeve 501 is sleeved on the nozzle base body 1; the movable sleeve 502 is sleeved on the flow guide 2; the three extrusion springs 503 are fixedly connected in a ring array on the side of the fixed sleeve 501 near the movable sleeve 502, and the ends of the extrusion springs 503 are in contact with the movable sleeve 502; the extrusion springs 503 have an arc-shaped structure, the cross-section of the extrusion springs 503 has a V-shaped structure, and the tips of the three extrusion springs 503 are arranged opposite each other.
[0028] By setting up the extrusion component 5, when the movable sleeve 502 contacts the end of the extrusion spring 503, the movable sleeve 502 will extrude the extrusion spring 503, causing the extrusion spring 503 to deform under force. The force generated by the deformation of the extrusion spring 503 can make the threaded connection between the external threaded cylinder 302 and the internal threaded groove 301 more stable, thereby improving the practicality of this utility model.
[0029] Working principle: When in use, select the appropriate guide shroud 2 according to the spraying scenario. Then, connect the external threaded cylinder 302 to the internal threaded groove 301 and rotate the guide shroud 2 to move it closer to the nozzle base body 1 until the movable sleeve 502 contacts the end of the extrusion spring 503. At this time, the movable sleeve 502 will squeeze the extrusion spring 503, causing the extrusion spring 503 to deform under force. The force generated by the deformation of the extrusion spring 503 can make the threaded connection between the external threaded cylinder 302 and the internal threaded groove 301 more stable until the end face of the external threaded cylinder 302 contacts the inner wall of the internal threaded groove 301. Then, connect the nozzle base body 1 to the unmanned equipment. The guide shroud 2, which is made of lightweight and corrosion-resistant composite material, has a constricted front end and an extended flared end, can guide the paint mist to diffuse in a directional manner and reduce back splashing. The grille-type exhaust channel 4 can balance the internal and external air pressure and reduce resistance.
[0030] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A nozzle anti-fouling device suitable for unmanned equipment spraying operations, characterized in that, The device includes a nozzle base body (1), a flow guide (2) for preventing contamination of the nozzle during unmanned equipment spraying operations, a connecting assembly (3), and a grid-type exhaust channel (4); the nozzle base body (1) is connected to the unmanned equipment; the flow guide (2) is coaxially mounted with the nozzle and fixed to the nozzle base by the connecting assembly (3); the front end of the flow guide (2) is a tapered structure, and the end is extended into a trumpet shape; the side wall of the flow guide (2) is provided with a grid-type exhaust channel (4) that allows the airflow to be discharged laterally.
2. A nozzle anti-fouling device suitable for unmanned equipment spraying operations according to claim 1, characterized in that, The flow guide (2) is made of high-density polyethylene or polypropylene resin, and the inner and outer walls of the flow guide (2) are self-adhesive films.
3. A nozzle anti-fouling device suitable for unmanned equipment spraying operations according to claim 2, characterized in that, The connecting assembly (3) includes an internal threaded groove (301) and an external threaded cylinder (302); the nozzle base body (1) has an internal threaded groove (301) on the side near the flow guide (2); the external threaded cylinder (302) is fixed on the flow guide (2) and threadedly connected to the internal threaded groove (301).
4. A nozzle anti-fouling device suitable for unmanned equipment spraying operations according to claim 1, characterized in that, The grille-type exhaust channel (4) consists of multiple layers of staggered diamond-shaped through holes, with the channel axis forming an angle of 15-30° with the crawling direction of the unmanned equipment.
5. A nozzle anti-fouling device suitable for unmanned equipment spraying operations according to claim 3, characterized in that, It also includes an extrusion assembly (5); the extrusion assembly (5) is arranged on the flow guide (2).
6. A nozzle anti-fouling device suitable for unmanned equipment spraying operations according to claim 5, characterized in that, The extrusion assembly (5) includes a fixed sleeve (501), a movable sleeve (502), and extrusion springs (503); the fixed sleeve (501) is sleeved on the nozzle base body (1); the movable sleeve (502) is sleeved on the flow guide (2); a plurality of extrusion springs (503) are fixed in a ring array on the side of the fixed sleeve (501) near the movable sleeve (502), and the ends of the extrusion springs (503) are in contact with the movable sleeve (502).
7. A nozzle anti-fouling device suitable for unmanned equipment spraying operations according to claim 6, characterized in that, The extrusion block (503) has an arc-shaped structure and a V-shaped cross-section, with the tips of several extrusion blocks (503) arranged opposite each other.