Detachable vehicle body cavity wax spraying nozzle

Abstract

The utility model relates to a detachable vehicle body cavity wax spraying nozzle which comprises a handheld handle, a vehicle body profiling block and a nozzle, the nozzle is detachably connected with the handheld handle, and the nozzle and the handheld handle are hollow and communicated; a spraying hole is formed in the nozzle; the vehicle body profiling block is mounted on the nozzle; the shapes of the vehicle body profiling blocks are in one-to-one correspondence with the shape of the outer surface of the vehicle body where the wax spraying ports are located, and the vehicle body profiling blocks are tightly attached to the vehicle body. Compared with the prior art, the nozzle is detachably connected with the handheld handle, so that the nozzle is convenient to replace and clean; and the vehicle body profiling block is mounted on the nozzle and has the same shape as the outer surface of the vehicle body at the position of the wax spraying port, so that the nozzle with a specific structure can be accurately and stably mounted in the wax spraying port matched with the nozzle for wax spraying, and the mistake proofing function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, and in particular to a detachable car body cavity wax spray nozzle. Background Technology

[0002] Cavity wax spraying is an important anti-corrosion technology for automotive bodies. The interior of a car body contains numerous cavities that help reduce weight and enhance body strength. However, these cavities are also susceptible to electrochemical corrosion. Therefore, cavity wax spraying, which involves spraying a specialized wax into these cavities, is an effective way to protect the car body from corrosion. Traditional wax spray nozzles and handles are welded together. If the wax solidifies and clogs the nozzle over time, cleaning is extremely difficult. Furthermore, the fast pace of production lines means these nozzles are prone to impacts, which can deform the nozzle orifices and slots, necessitating the replacement of the entire part.

[0003] A search revealed that CN218835022U discloses a directional anti-corrosion wax injection nozzle for automotive cavities. Specifically, it discloses a base, a connecting tube, a dispensing nozzle, and a spray nozzle. The base includes an internally threaded tube, a tapered connector, and an externally threaded tube, all integrally formed. The tapered connector has an internally threaded tube at its constricted end and an externally threaded tube at its flared end, connected at the tapered connector. A nut for connection to a glue gun is installed on the externally threaded tube. One end of the connecting tube is connected to the internally threaded tube, and the other end has the dispensing nozzle installed. The nozzle is detachably connected to the dispensing nozzle. However, this prior art is inconvenient when applied to different locations.

[0004] In summary, the technical problem that needs to be solved is how to design a wax spray nozzle that can be easily applied to car body cavities in different locations. Utility Model Content

[0005] The purpose of this invention is to overcome the inconvenience of applying the existing technology to different locations and to provide a detachable car body cavity wax spray nozzle.

[0006] The objective of this utility model can be achieved through the following technical solutions.

[0007] According to one aspect of this utility model, a detachable car body cavity wax spray nozzle is provided. Multiple wax spray nozzles are pre-drilled on the car body, and the spray nozzle passes through these nozzles into the car body cavity. The nozzle includes a hand handle, a car body contour block, and a nozzle. The nozzle is detachably connected to the hand handle, and both the nozzle and the hand handle are hollow and interconnected. The nozzle has spray holes. The car body contour block is mounted on the nozzle. Multiple car body contour blocks are provided, each with a shape corresponding to the shape of the outer surface of the car body at the location of the multiple wax spray nozzles. The car body contour blocks are tightly attached to the car body.

[0008] As a preferred technical solution, the handheld handle and the nozzle are connected by a ferrule connector.

[0009] As a preferred technical solution, the ferrule connector is hollow inside, with ferrules provided inside both ends, and each of the outer surfaces of the nozzle and the hand handle mates with a ferrule.

[0010] As a preferred technical solution, the outer surfaces of both ends of the ferrule connector are provided with threads, and nuts are screwed onto them.

[0011] As a preferred technical solution, one end of the nozzle is hemispherical, and the spray hole is opened along the radial direction of the hemisphere, and the spray hole includes one or more.

[0012] As a preferred technical solution, the plurality of spray holes are evenly distributed around the circumference.

[0013] As a preferred technical solution, the nozzle is cylindrical in shape, and multiple spray holes are evenly distributed along the circumference of the nozzle sidewall at the same distance from the nozzle end face to form a spray hole group. The nozzle is provided with one or more spray hole groups.

[0014] As a preferred technical solution, a fixing plate is welded onto the nozzle, the fixing plate is sleeved on the outer surface of the nozzle and perpendicular to the nozzle axis, and the vehicle body contour block is mounted on the fixing plate.

[0015] As a preferred technical solution, the vehicle body contour block includes a first part and a second part, wherein the first part is inserted into the wax spray nozzle and the second part is attached to the surface of the vehicle body.

[0016] As a preferred technical solution, the handheld handle is provided with a grip.

[0017] Compared with the prior art, the present invention has the following beneficial effects.

[0018] 1) The nozzle and hand handle of this utility model are detachably connected, which makes it easy to replace and clean the nozzle; a car body contour block is installed on the nozzle, and the shape of the car body contour block is the same as that of the outer surface of the car body where the wax spray nozzle is located, which can make the specific structure nozzle accurately and stably installed in the matching wax spray nozzle for wax spraying, thus playing a role in preventing errors.

[0019] 2) The hand handle and nozzle of this utility model are connected by a ferrule connector. Neither the nozzle nor the hand handle needs to be threaded, which reduces processing costs, facilitates trial production and adjustment, and also reduces R&D costs. Due to the high pressure of wax spraying, the ferrule connector is less prone to leakage compared to threaded connections.

[0020] 3) This utility model provides circumferentially distributed spray holes on the nozzle end face and / or nozzle side wall to adapt to different shapes of the cavity inside the vehicle at different locations, making the wax spraying more uniform.

[0021] 4) This utility model uses a fixing plate to fix the position of the vehicle body contour block, making installation convenient and quick; the hand handle is equipped with a grip for easy handling. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a detachable car body cavity wax spray nozzle according to the present invention.

[0023] Figure 2 This is a front view of the nozzle of this utility model.

[0024] Figure 3 This is a side view of the nozzle of this utility model.

[0025] Figure 4 This is a schematic diagram of the nozzle of this utility model installed inside the wax spray nozzle.

[0026] Figure 5 A schematic diagram showing the simultaneous installation of wax spray nozzles at multiple wax spray nozzles on a car body.

[0027] The numbers in the diagram are as follows:

[0028] 1. Body, 10. Wax spray nozzle, 2. Hand handle, 20. Grip handle, 3. Body contour block, 30. First part, 31. Second part, 4. Nozzle, 40. Spray hole, 41. Fixing plate, 5. Compression fitting. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0030] like Figure 1 As shown, this utility model provides a detachable car body cavity wax spray nozzle for spraying wax into the cavity of the car body 1. The car body 1 has multiple wax spray nozzles 10. The nozzle includes a hand handle 2, a car body contour block 3, a nozzle 4, and a clamp connector 5.

[0031] The handle 2 is hollow inside. One end is connected to the nozzle 4 through the ferrule 5, and the other end is equipped with a grip 20 to facilitate the operator to hold the nozzle.

[0032] The body contour block 3 is installed on the nozzle 4. The body contour block 3 includes a first part 30 and a second part 31. The first part 30 is fitted inside the wax spray nozzle 10, and the second part 31 has the same shape as the outer surface of the body 1 at the location of the wax spray nozzle 10, and fits against the outer surface of the body 1. The body contour block 3 not only plays a sealing role during wax spraying, but also plays a role in preventing errors. It corresponds to the cavities of different parts, so that the nozzle 4 will not be used incorrectly, resulting in unqualified spraying.

[0033] like Figure 2 and Figure 3 As shown, the nozzle 4 is hollow inside and cylindrical in shape, with one end face being hemispherical, extending into the cavity of the vehicle body 1; the other end is connected to the hand handle 2 via a clamping connector 5. Multiple spray holes 40 are evenly distributed circumferentially at the same height on the hemispherical end face, forming a group of spray holes 40 along the diameter of the hemisphere; multiple spray holes 40 are also evenly distributed circumferentially at the same height on the sidewall of the nozzle 4, forming a group of spray holes 40. One or more groups of spray holes 40 are provided on the end face and / or sidewall of the nozzle 4. The number of groups of spray holes 40 and the number of spray holes 40 can be designed according to actual testing to meet the wax spraying requirements of cavities with specific shapes.

[0034] A ring-shaped fixing plate 41 is welded to the outer surface of one end of the nozzle 4 that is connected to the hand handle 2. The fixing plate 41 is perpendicular to the axis of the nozzle 4. The vehicle body contour block 3 is installed on the fixing plate 41, which is convenient for disassembly and assembly.

[0035] The ferrule connector 5 is cylindrical with a hollow interior. Ferrules are installed at both ends. One ferrule mates with the outer surface of the nozzle 4 and the outer surface of the handle 2, securing the nozzle 4 and handle 2. This mechanical engagement provides high connection strength and can withstand high pressure. The outer surfaces of both ends of the ferrule connector 5 are threaded, with nuts screwed onto them to provide clamping force. The ferrule engages with the nozzle 4 and handle 2 through surface contact. The advantages of this structure are that the nozzle 4 and handle 2 do not require thread machining, and it is pressure-resistant, typically operating at 80-100 bar, minimizing leakage. Furthermore, during the prototype development process, several versions of the spray head are needed to achieve the ideal spraying effect because theoretical designs cannot fully meet practical requirements. The new spray head is easier to manufacture, significantly reducing R&D costs and subsequent maintenance costs. Connecting the handle and spray head with ferrules makes cleaning and replacement of the spray head more convenient and faster, reducing production costs and increasing production efficiency.

[0036] like Figure 4 and Figure 5 As shown, this utility model can simultaneously perform wax spraying operations at multiple wax spray nozzles 10, greatly improving wax spraying efficiency.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A detachable car body cavity wax spray nozzle, wherein multiple wax spray nozzles (10) are pre-drilled on the car body (1), and the wax spray nozzle passes through the wax spray nozzles (10) into the cavity of the car body (1), characterized in that, The spray head includes a hand handle (2), a car body contour block (3) and a nozzle (4). The nozzle (4) is detachably connected to the hand handle (2), and the nozzle (4) and the hand handle (2) are hollow and connected inside. The nozzle (4) has a spray hole (40). The car body contour block (3) is installed on the nozzle (4). There are multiple car body contour blocks (3), and their shapes correspond one-to-one with the outer surface shapes of the car body (1) where multiple wax spray nozzles (10) are located. The car body contour blocks (3) are tightly attached to the car body (1).

2. The detachable car body cavity wax spray nozzle according to claim 1, characterized in that, The handheld handle (2) and the nozzle (4) are connected by a ferrule connector (5).

3. A detachable car body cavity wax spray nozzle according to claim 2, characterized in that, The ferrule connector (5) is hollow inside, and ferrules are provided inside both ends. The outer surface of the nozzle (4) and the outer surface of the hand handle (2) are each fitted with a ferrule.

4. A detachable car body cavity wax spray nozzle according to claim 2, characterized in that, The outer surfaces of both ends of the ferrule connector (5) are threaded, and nuts are screwed onto them.

5. A detachable car body cavity wax spray nozzle according to claim 1, characterized in that, The nozzle (4) is hemispherical at one end, and the spray hole (40) is opened along the radius of the hemispherical, and the spray hole (40) includes one or more.

6. A detachable car body cavity wax spray nozzle according to claim 5, characterized in that, The multiple nozzles (40) are evenly distributed around the circumference.

7. A detachable car body cavity wax spray nozzle according to claim 1, characterized in that, The nozzle (4) is cylindrical in shape. Multiple spray holes (40) are evenly distributed along the circumference of the side wall of the nozzle (4) at the same distance from the end face of the nozzle (4), forming a group of spray holes (40). The nozzle (4) is provided with one or more groups of spray holes (40).

8. A detachable car body cavity wax spray nozzle according to claim 1, characterized in that, A fixing plate (41) is welded on the nozzle (4). The fixing plate (41) is sleeved on the outer surface of the nozzle (4) and perpendicular to the axis of the nozzle (4). The vehicle body contour block (3) is installed on the fixing plate (41).

9. A detachable car body cavity wax spray nozzle according to claim 8, characterized in that, The vehicle body contour block (3) includes a first part (30) and a second part (31). The first part (30) is inserted into the wax spray nozzle (10), and the second part (31) is attached to the surface of the vehicle body (1).

10. A detachable car body cavity wax spray nozzle according to claim 1, characterized in that, The hand handle (2) is provided with a grip (20).

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