Vehicle bottom PVC spraying gun
By designing an adjustable-spacing horizontal guide platform structure, the problems of paint waste and component impact when using high-pressure airless spray guns for undercarriage painting were solved, achieving precise spraying of the narrow area under the vehicle and ease of operation.
Patent Information
- Application Number
- CN202422734271.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-11
AI Technical Summary
When using existing high-pressure airless spray guns to apply anti-stone chip coating to PVC undercarriages of automobiles, it is difficult to accurately control the spraying range, resulting in the coating being sprayed into unwanted areas, affecting the normal use of other components and causing waste.
A PVC spray gun for the undercarriage of a vehicle was designed. It adopts a horizontal guide platform structure with adjustable spacing. The spraying range of the nozzle is adjusted by pneumatic principle. The nozzles can be moved in opposite directions by the cooperation of buttons and sliders to adjust the spraying range to adapt to the irregular shape of the undercarriage of the vehicle.
It enables precise spraying of narrow and elongated areas under the car body, reducing paint waste, avoiding interference with the normal use of other components, and is simple and convenient to operate.
Smart Images

Figure CN223556254U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of spraying spray gun, especially relates to the car bottom PVC spraying spray gun. BACKGROUND
[0002] The anti-stone car bottom paint is an automobile paint with sandstone impact resistance and corrosion resistance, which is mainly composed of plasticizer, PVC paste resin, special PVC resin thermal stabilizer, thixotropic agent, water removal agent, adhesion promoter, nano active calcium carbonate, filler and viscosity reducer.
[0003] However, since the car bottom is not a regular cross section, the coverage of the spray gun nozzle is fixed, so when spraying some narrow car bottom positions, the PVC anti-stone paint is easily sprayed to positions that do not need to be sprayed, affecting the normal use of other parts of the car bottom.
[0004] Therefore, the car bottom PVC spraying spray gun is proposed. INVENTION CONTENTS
[0005] The utility model provides car bottom PVC spraying spray gun, aims at solving above -mentioned problem.
[0006] The utility model discloses a car bottom PVC spraying spray gun, which comprises a spray gun body, a nozzle fixedly arranged at a spraying output end of the spray gun body, a vertical flow guide table integrally formed at an inner bottom and an inner top of the nozzle, a gas cylinder fixedly arranged at an outer side wall of the nozzle through bolts, a horizontal flow guide table fixedly arranged at an output end of the gas cylinder, a side handle fixedly arranged at a bottom of the spray gun body through bolts, a sliding groove arranged at a position close to the side handle at the bottom of the spray gun body, a sliding block slidingly arranged in the sliding groove, a spring fixedly arranged at an outer side wall of the sliding block and an inner side wall of the sliding groove, a button integrally formed at a bottom of the sliding block, an airtight box fixedly arranged at an outer side wall of the spray gun body through screws, a piston rod fixedly arranged at a position close to the airtight box at an outer side wall of the sliding block, a piston fixedly arranged at a position close to an inner part of the airtight box at one end of the piston rod, and a gas pipe fixedly and communicatively arranged between the airtight box and the gas cylinder.
[0007] Preferably, an inclined surface is arranged on one side of the vertical flow guide table and the horizontal flow guide table.
[0008] Preferably, two gas cylinders are arranged symmetrically on the outer side wall of the nozzle.
[0009] Preferably, the piston moves in a piston type in the airtight box, and the piston rod penetrates through the airtight box.
[0010] Preferably, the gas cylinder and the airtight box are in communication with the gas pipe.
[0011] Preferably, a part of the sliding block protrudes from the sliding groove.
[0012] Compared with the prior art, the embodiment of the application has the following beneficial effects:
[0013] The two horizontal flow guide platforms that can move towards or away from each other in the nozzle can adjust the distance therebetween, and thus adjust the range of the PVC anti-stone impact coating sprayed by the nozzle, so that the nozzle can spray the PVC anti-stone impact coating in a small range, the spraying operation on the narrow and long area of the vehicle bottom can be facilitated, the PVC anti-stone impact coating is prevented from being sprayed to a position that does not need to be sprayed, the waste of the PVC anti-stone impact coating is reduced, the normal use of other components of the vehicle bottom is prevented from being affected, and the adjustment operation is simple and convenient and can be realized by using the pneumatic principle after the button is pressed. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a structural schematic view of the utility model;
[0015] Figure 2 is an explosion schematic view of the nozzle of the utility model;
[0016] Figure 3 is a sliding block structure schematic view of the utility model;
[0017] Figure 4 is a gas-tight box internal structure schematic view of the utility model;
[0018] Figure 5 is an A place enlarged view in the utility model Figure 1 .
[0019] In the figure: 1, the spray gun body; 2, nozzle; 3, vertical flow guide platform; 4, air cylinder; 5, horizontal flow guide platform; 6, side handle; 7, sliding groove; 8, sliding block; 9, spring; 10, button; 11, gas-tight box; 12, piston rod; 13, piston; 14, air pipe. DETAILED DESCRIPTION
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the description and claims of this application as well as the above discussion of the related art are intended to be illustrative only and not restrictive on the application; the terminology used herein secures the proper understanding of particular embodiments of the present application as defined by the words of the claims attached hereto and should not be used to limit the scope of the application that is defined solely by those claims; the terms "comprising," "having," "including," and "containing" used herein are meant to be inclusive and are used without excluding other non- specified elements.
[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0022] This utility model embodiment provides a PVC spray gun for vehicle underbody painting, such as... Figures 1-5 As shown, the spray gun includes a spray gun body 1. A nozzle 2 is fixedly installed at the paint output end of the spray gun body 1. A vertical guide platform 3 is integrally formed on both the bottom and top of the nozzle 2. A cylinder 4 is fixedly connected to the outer wall of the nozzle 2 by bolts. There are two cylinders 4, which are symmetrically arranged on the outer wall of the nozzle 2. A horizontal guide platform 5 is fixedly connected to the output end of one side of each cylinder 4. A side handle 6 is fixedly connected to the bottom of the spray gun body 1 by screws. A groove 7 is opened on the bottom of the spray gun body 1 near the side handle 6. A sliding mechanism is slidably connected inside the groove 7. A portion of the slider 8 protrudes from the groove 7. A spring 9 is fixedly installed between the outer wall of the slider 8 and the inner wall of the groove 7. A button 10 is integrally formed at the center of the bottom of the slider 8. An airtight box 11 is fixedly connected to one side of the outer wall of the spray gun body 1 by screws. A piston rod 12 is fixedly installed on one side of the outer wall of the slider 8 near the airtight box 11. A piston 13 is fixedly installed at one end of the piston rod 12 inside the airtight box 11. An air pipe 14 is fixedly installed between the airtight box 11 and the cylinder 4. Both the cylinder 4 and the airtight box 11 are connected to the air pipe 14.
[0023] It should be noted that since the underside of a car is not a regular cross-section, the coverage area sprayed by the spray gun nozzle is fixed. Therefore, when spraying narrow and elongated areas of the underside, the PVC anti-stone chip coating may be sprayed onto unwanted areas, affecting the normal use of other components. In this embodiment, two horizontal guide platforms 5 on the inner side of the nozzle 2, which can move in opposite directions, allow for adjustment of their spacing, thereby adjusting the spray range of the PVC anti-stone chip coating. This facilitates spraying the PVC anti-stone chip coating over a small area, making it easier to spray narrow and elongated areas of the underside, avoiding spraying the coating onto unwanted areas, reducing waste, and preventing interference with other components. The adjustment operation is simple and convenient, achieved using the pneumatic principle of the button 10.
[0024] Specifically, in the embodiment, the scheme mainly comprises the horizontal flow guide table 5, when the automobile chassis is sprayed with the PVC anti-stone paint, the user holds the spray gun body 1 with one hand and holds the side handle 6 with the other hand, the spray gun body 1 sprays the PVC anti-stone paint on the chassis, when the spraying area changes, the button 10 is buckled by the finger, the button 10 is forced to make the sliding block 8 slide in the sliding groove 7, the sliding block 8 extrudes the spring 9 in the moving process, the spring 9 is compressed under the force, the button 10 is reset under the springback force of the spring 9 when the force applied to the button 10 disappears, when the sliding block 8 moves towards the side handle 6, the piston rod 12 on the sliding block 8 moves synchronously, the piston 13 at one end of the piston rod 12 moves in the piston type in the airtight box 11, the piston 13 pushes the gas in the airtight box 11 to enter the air cylinder 4 through the air pipe 14, the air pressure in the air cylinder 4 is increased to drive the horizontal flow guide table 5 to move in the inside of the nozzle 2 through the output end on one side, the interval of the nozzle 2 is shortened, so that the spraying range of the PVC anti-stone paint is reduced, the spraying operation on the narrow and long area of the chassis is facilitated, the PVC anti-stone paint is prevented from being sprayed on the position which does not need to be sprayed, the waste of the PVC anti-stone paint is reduced, and the normal use of other parts of the chassis is avoided.
[0025] As shown in the further preferred embodiment of the utility model, Figure 2 An inclined surface is formed on one side of the outer wall of the vertical flow guide table 3 and the horizontal flow guide table 5.
[0026] In the embodiment, the PVC anti-stone paint can be smoothly sprayed through the guidance of the inclined surface.
[0027] As shown in the further preferred embodiment of the utility model, Figure 4 The piston 13 moves in the piston type in the airtight box 11, and the piston rod 12 penetrates through the airtight box 11.
[0028] In the embodiment, the piston 13 at one end of the piston rod 12 moves in the piston type in the airtight box 11, so that the piston 13 pushes the gas in the airtight box 11 to enter the air cylinder 4 through the air pipe 14.
[0029] It should be noted that, for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the action sequence described, because according to the utility model, certain steps can adopt other sequences or be carried out at the same time. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the utility model.
[0030] In several embodiments provided by the present application, it should be understood that the disclosed apparatus can be implemented by other manners. For example, the apparatus embodiments described above are merely illustrative, for example, the division of the above units can have another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection between the units or components through some interfaces, and can be electrical or other forms.
[0031] The units described above as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.
[0032] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete or make other adjustments to the features in each embodiment of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also belong to the scope of protection of the present application.
Claims
1. A PVC coating spray gun for vehicle undercarriage, characterized in that, include: Spray gun body (1); A nozzle (2) is fixedly installed at the spray output end of the spray gun body (1). Vertical guide platform (3) integrally formed inside the bottom and top of the nozzle (2); The cylinder (4) is fixed to the outer wall of the nozzle (2) by bolts; A horizontal guide platform (5) fixed to the output end of the cylinder (4); The side handle (6) is fixed to the bottom of the spray gun body (1) by bolts. A groove (7) is provided at the bottom of the spray gun body (1) near the side handle (6). The slider (8) slides inside the groove (7); A spring (9) fixed to the outer wall of the slider (8) and the inner wall of the groove (7); and A button (10) integrally formed on the bottom of the slider (8); An airtight box (11) is fixed to the outer wall of the spray gun body (1) by screws. The piston rod (12) is fixed to the side of the outer wall of the slider (8) near the airtight box (11). A piston (13) is fixed at one end of the piston rod (12) near the inside of the airtight box (11). A fixed air pipe (14) is connected between the airtight box (11) and the cylinder (4).
2. The PVC coating spray gun for vehicle undercarriage as described in claim 1, characterized in that, Inclined surfaces are provided on one side of the outer wall of both the vertical guide platform (3) and the horizontal guide platform (5).
3. The PVC coating spray gun for vehicle undercarriage as described in claim 1, characterized in that, There are two cylinders (4), and the two cylinders (4) are symmetrically arranged on the outer wall of the nozzle (2).
4. The PVC coating spray gun for vehicle undercarriage as described in claim 1, characterized in that, The piston (13) moves in a piston-like motion inside the airtight box (11), and the piston rod (12) passes through the airtight box (11).
5. The PVC coating spray gun for vehicle undercarriage as described in claim 1, characterized in that, Both the cylinder (4) and the airtight box (11) are connected to the air pipe (14).
6. The PVC coating spray gun for vehicle undercarriage as described in claim 1, characterized in that, A portion of the slider (8) protrudes from the groove (7).