Electrostatic spraying gun
By setting up an extension part and an infrared emitter on the electrostatic spray gun, the problem of limited spray range and angle of the traditional electrostatic spray gun is solved, and more flexible spraying operations and more uniform coating effects are achieved, reducing labor intensity and coating costs.
Patent Information
- Application Number
- CN202420938468.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Traditional electrostatic spray guns have limitations in the spray range and angle, making it difficult to effectively spray objects of high places or complex shapes, resulting in difficult to ensure uniformity and consistency of the paint, increasing labor intensity and coating costs.
An electrostatic spray gun is designed by providing an extension part and an infrared emitter on the gun body. The extension is connected to the handle to adjust its length to expand the spray range; the infrared emitter emits infrared light to help the staff accurately locate the spray position to avoid repeated spraying and excessive spraying.
Through the design of the extension part, the spray range and height of the electrostatic spray gun are adjustable, which significantly improves the flexibility and efficiency of spraying; the use of infrared emitters ensures the uniformity and consistency of the paint, reducing labor intensity and coating costs.
Smart Images
Figure CN222678403U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spray guns, in particular to an electrostatic spray gun. Background Art
[0002] Electrostatic spraying is an efficient and widely used coating technology that uses the principle of corona discharge to make the atomized paint negatively charged under the action of a high-voltage DC electric field. These negatively charged paint particles are then adsorbed onto the positively charged substrate surface, completing the coating process. Electrostatic spraying equipment usually includes key components such as a spray gun, a spray cup, and an electrostatic spray high-voltage power supply that provides a high-voltage electric field.
[0003] However, despite the many advantages of electrostatic spraying, traditional electrostatic spray guns have obvious limitations in the spraying range. These limitations are particularly prominent when dealing with spraying tasks at higher positions. Due to the design structure of the spray gun and the spray cup, the spraying range is often limited to a certain extent. For objects at higher positions, external force is required to make the workers stand at a higher position for spraying, which takes more time and energy to adjust, and it is difficult to determine the spraying area of the electrostatic spray gun and aim the electrostatic spray gun at the spraying area for spraying.
[0004] This operation not only increases the labor intensity of the staff, but also in the actual operation process, due to the need to quickly move and adjust the spray cup, it is often difficult to ensure the uniformity and consistency of the paint. Therefore, it is easy to cause waste of paint, which not only increases the cost of painting, but also may have adverse effects on the environment.
[0005] In addition, traditional electrostatic spray guns are even more difficult to handle for objects with complex shapes or irregular surfaces. Due to the limitations of spraying range and angle, it is difficult to ensure that the paint can completely cover every corner and detail of the object, thus affecting the coating effect and quality. Utility Model Content
[0006] In order to solve the technical problem that the spraying range of the electrostatic spray gun in the prior art is limited, the utility model provides an electrostatic spray gun.
[0007] The technical solution adopted by the utility model is:
[0008] The utility model provides an electrostatic spray gun, comprising:
[0009] A gun body, wherein the gun body is used for spraying;
[0010] An extension part, the top end of which is fixed to one side of the bottom of the gun body;
[0011] A handle, wherein a limiting piece is provided at the top end of the handle, and the bottom end of the extension part is inserted into the top end of the handle and limited by the limiting piece. The length of the extension part inserted into the handle can be selected according to needs.
[0012] Furthermore, the extension portion comprises:
[0013] A fixing member, the top of which is fixed to one side of the bottom of the gun body, and the fixing member is provided with an internal thread;
[0014] An extension rod, wherein the outer wall of the top end of the extension rod is provided with an external thread, the top end of the extension rod extends into the fixing member and is connected to the fixing member through the cooperation of the internal thread and the external thread, and the bottom end of the extension rod is inserted into the handle and limited by the limiting member.
[0015] Furthermore, an infrared emitter is installed on the top of the gun body of the electrostatic spray gun, and the infrared light direction of the infrared emitter is the same as the spraying direction of the electrostatic spray gun.
[0016] Furthermore, a slot is provided on one side of the top of the gun body, and an insert block is provided on the infrared emitter. The insert block is inserted into the slot and the insertion depth can be adjusted.
[0017] Furthermore, the limiting member is a bolt, and the handle is provided with a threaded hole for installing the bolt, and the bolt is tightened to support the extension rod inserted into the handle to limit the position.
[0018] Furthermore, an outward clamping ring is provided at the bottom end of the extension rod, and an inward limiting ring is provided at the top end of the handle to prevent the extension rod from falling off from the handle.
[0019] Furthermore, an anti-slip pad is provided on the outer wall of the bottom end of the handle.
[0020] Compared with the prior art, the utility model proposes an electrostatic spray gun, an extension part is provided on the gun body, the bottom end of the extension part is inserted into the handle, and the range of the electrostatic spray gun that can be sprayed can be greatly increased by adjusting the length of the extension part inserted into the handle, so that the area that the electrostatic spray gun can spray can be raised or lowered, and the utility model is also provided with an infrared emitter on the electrostatic spray gun, the infrared light direction of the infrared emitter is the same as the spraying direction of the electrostatic spray gun, and the position where the light emitted by the infrared emitter irradiates the surface of the object is the same as the position to be sprayed by the electrostatic spray gun. When the staff is spraying, the infrared light emitted by the infrared emitter irradiates the surface of the object to be sprayed, and the staff can determine the position to be sprayed, so as to prevent repeated spraying of one position, resulting in excessive spraying and affecting the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;
[0023] Figure 2 This is a schematic structural diagram of the first embodiment of the utility model;
[0024] Figure 3 This is a schematic diagram of the gun body structure of an embodiment of the utility model;
[0025] Figure 4 This is a schematic diagram of the extension rod retracted in the embodiment of the utility model;
[0026] Figure 5 This is a schematic diagram of a handle according to an embodiment of the utility model;
[0027] 1. Gun body;
[0028] 2. Nozzle;
[0029] 3. Infrared transmitter;
[0030] 4. Fixing parts;
[0031] 5. Extension rod;
[0032] 6. Handle;
[0033] 7. Limiting parts;
[0034] 8. Slot;
[0035] 9. Anti-slip mat. DETAILED DESCRIPTION
[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0037] The principle and structure of the present utility model are described in detail below with reference to the accompanying drawings and embodiments.
[0038] Electrostatic spraying is an efficient and widely used coating technology that uses the principle of corona discharge to make the atomized paint negatively charged under the action of a high-voltage DC electric field. These negatively charged paint particles are then adsorbed onto the positively charged substrate surface, completing the coating process. Electrostatic spraying equipment usually includes key components such as a spray gun, a spray cup, and an electrostatic spray high-voltage power supply that provides a high-voltage electric field.
[0039] However, despite the many advantages of electrostatic spraying, traditional electrostatic spray guns have obvious limitations in the spraying range. These limitations are particularly prominent when dealing with spraying tasks at higher positions. Due to the design structure of the spray gun and the spray cup, the spraying range is often limited to a certain extent. For objects at higher positions, external force is required to make the workers stand at a higher position for spraying, which takes more time and energy to adjust, and it is difficult to determine the spraying area of the electrostatic spray gun and aim the electrostatic spray gun at the spraying area for spraying.
[0040] This operation not only increases the labor intensity of the staff, but also in the actual operation process, due to the need to quickly move and adjust the spray cup, it is often difficult to ensure the uniformity and consistency of the paint. Therefore, it is easy to cause waste of paint, which not only increases the cost of painting, but also may have adverse effects on the environment.
[0041] In addition, traditional electrostatic spray guns are even more difficult to handle for objects with complex shapes or irregular surfaces. Due to the limitations of spraying range and angle, it is difficult to ensure that the paint can completely cover every corner and detail of the object, thus affecting the coating effect and quality.
[0042] like Figure 1-5 As shown, the utility model proposes an electrostatic spray gun, comprising: a gun body 1, an extension part and a handle 6. The gun body is used for spraying, and one end of the gun body is a nozzle, which sprays the paint on the object to be sprayed toward the object to be sprayed. The extension part is fixed to the gun body 1, and the bottom end of the extension part is inserted into the handle 6, and is limited by a limiter 7 provided on the handle 6 to prevent the extension part and the handle 6 of the electrostatic spray gun from being displaced during operation by the staff, causing the electrostatic spray gun to suddenly change the area to be sprayed, affecting the spraying effect.
[0043] like Figure 2-3 As shown, in a further embodiment, the extension part is fixed to the gun body 1, and the top of the extension part is fixed to one side of the bottom of the gun body 1. The handle 6 is cylindrical, hollow inside and the top is not closed for connection with the extension part. The bottom end of the extension part is inserted into the unclosed top of the handle 6 and fixed with a stopper 7. According to the actual required length, the length of the extension part inserted into the handle 6 is different, which can change the height sprayed by the electrostatic spray gun, that is, the range sprayed by the electrostatic spray gun.
[0044] In another specific embodiment, the extension part specifically includes a fixing member 4 and an extension rod 5, the fixing member 4 is fixed to the gun body 1, the top end of the extension rod 5 is fixed to the fixing member 4, and the bottom end is inserted into the handle 6. The top end of the fixing member 4 is fixed to one side of the bottom of the gun body 1, and the inner wall of the fixing member 4 is provided with an internal thread; the outer wall of the top end of the extension rod 5 is provided with an external thread, the top end of the extension rod 5 extends into the fixing member 4 and is connected to the fixing member 4 through the cooperation of the internal thread and the external thread, and the bottom end of the extension rod 5 is inserted into the handle 6 and limited by the limiter 7.
[0045] Specifically, the fixing member 4 is cylindrical, the bottom end is not closed, and the interior is hollow, and the top end is connected and fixed to one side of the bottom of the gun body 1. The inner wall of the fixing member 4 is provided with an internal thread for connecting the extension rod 5. The extension rod 5 is a round long rod, and the top outer wall of the extension rod 5 is provided with an external thread. The extension rod 5 extends into the fixing part, and the extension rod 5 is connected to the fixing member 4 by rotating the external thread with the internal thread of the fixing part. The handle 6 is cylindrical, hollow inside, and the top end is not closed. The bottom end of the extension rod 5 is inserted into the handle 6 from the top end of the handle 6, and then is fixed by the limiter 7.
[0046] The shapes of the fixing member 4, the extension rod 5 and the handle 6 are not limited. If the extension rod 5 is in the shape of a square rod, the inner hollows of the fixing member 4 and the handle 6 are also in the shape of a square, so that the extension rod 5 can be inserted into the handle 6. In this case, the fixing member 4 and the extension rod 5 can be fixed by screws or adhesive, because the square shape is not suitable for threaded connection.
[0047] like Figure 5 As shown, in a further embodiment, the bottom end of the extension rod 5 is inserted into the handle 6 from the top end of the handle 6, and then is fixed by the stopper 7. The stopper 7 is a bolt, and the top end of the handle 6 is provided with a threaded hole, and the threaded hole is used to install the bolt. The bolt is tightened into the handle 6 so that the end of the bolt supports the extension rod 5 in the handle 6 to limit the extension rod 5. The bottom end of the extension rod 5 may be provided with an inwardly concave portion so that the stopper 7 can better support the extension rod 5 and limit the movement of the extension rod 5.
[0048] In a further embodiment, the bottom end of the extension rod 5 is inserted into the handle 6 from the top end of the handle 6, and then is fixed by the stopper 7. The stopper 7 is a bolt, and a threaded hole is provided at the top end of the handle, and the threaded hole is used to install the bolt. The bolt is tightened into the handle 6, and a connecting block vertically connected to the bolt can be provided at the end of the bolt outside the handle 6. By rotating the connecting block to drive the rotating bolt, the bolt and the extension rod 5 can be tightened more easily. The length of the extension rod 5 inserted into the handle 6 can be selected according to needs, and then the stopper 7 is used to limit the position, so that the electrostatic spray gun can adjust the spraying area.
[0049] like Figure 1As shown, in a further embodiment, the extension is arranged at the bottom of the gun body 1 and on the side opposite to the direction of the nozzle 2 of the electrostatic spray gun body 1, and the extension is perpendicular to the gun body 1. For example, when the nozzle 2 of the gun body 1 is on the left, the extension is arranged on the right side of the bottom of the gun body 1. The advantages of arranging the extension on the side opposite to the nozzle 2 are as follows: 1. Balanced feel: Arranging the extension on the side opposite to the direction of the nozzle 2 at the bottom of the gun body 1 can balance the weight of the entire spray gun, so that the staff can reduce the fatigue of the arm during long-term operation. 2. Easy to hold: The position design of the extension enables the staff to hold the handle 6 more stably to control the spray gun, reducing the possibility of misoperation. 3. Avoid touching the nozzle 2: When the nozzle 2 is on one side, arranging the extension on the other side can ensure that the staff's fingers will not accidentally touch the nozzle 2 during operation, thereby avoiding possible burns or other injuries. The existence of the extension can also serve as a physical barrier, allowing the staff to maintain a certain safe distance from the spraying area and reduce direct contact with harmful substances.
[0050] like Figure 1-2 As shown, in a further embodiment, in order to allow the staff to know the position where the nozzle 2 of the gun body 1 is to be sprayed, an infrared emitter 3 is provided on the gun body 1 of the electrostatic spray gun. The infrared light direction of the infrared emitter 3 is the same as the spraying direction of the electrostatic spray gun, and the position where the light emitted by the infrared emitter 3 irradiates the surface of the object is the same as the position where the electrostatic spray gun is to be sprayed. When the staff is spraying, the infrared light emitted by the infrared emitter 3 irradiates the surface of the object to be sprayed, and the staff can determine the position to be sprayed, so as to prevent repeated spraying of one position, resulting in excessive spraying and affecting the spraying effect. This innovative design not only enhances the intuitiveness of the operation, but also significantly reduces the error in the spraying process.
[0051] The setting of the infrared emitter 3 fully considers the actual needs of the spraying work. Its infrared light direction is completely consistent with the spraying direction of the electrostatic spray gun, ensuring that the infrared light emitted by the emitter can accurately indicate the area that the spray gun will cover. When the infrared light is irradiated on the surface of the object, its position is completely consistent with the position where the electrostatic spray gun is to be sprayed, providing a clear and intuitive spray range mark for the staff. During the spraying operation, the staff only needs to observe the projection position of the infrared light emitted by the infrared emitter 3 on the surface of the object to accurately judge the area that the spray gun is about to spray. This design greatly reduces the risk of repeated spraying at the same position, effectively avoids the problem of over-thick spraying, and thus ensures the uniformity and aesthetics of the spraying effect. In addition, the use of the infrared emitter 3 also improves work efficiency. The staff does not need to frequently adjust the position and angle of the spray gun, but only needs to spray according to the instructions of the infrared light to quickly complete the spraying operation of a large area. This not only reduces the labor intensity of the staff, but also shortens the spraying cycle and improves the overall work efficiency. In summary, the infrared transmitter 3 provided on the electrostatic spray gun brings many conveniences to the spraying work. It can not only help the staff to accurately judge the spraying position, prevent the problems of repeated spraying and over-thick spraying, but also improve work efficiency and reduce labor intensity.
[0052] like Figure 2 As shown, specifically, a slot 8 is provided on the top of the gun body 1 of the electrostatic spray gun, and an insert block that can be inserted into the slot 8 is provided on the infrared emitter 3. The insert block is inserted into the slot 8 to fix the infrared emitter 3 on the electrostatic spray gun. The gun body 1 of the electrostatic spray gun of the infrared generator is electrically connected to power the infrared emitter 3. In addition to this method of powering the infrared emitter 3, the infrared emitter 3 can also be powered by a battery. The staff can adjust the distance between the laser of the infrared emitter 3 and the object to be sprayed by adjusting the depth of the insert block inserted into the slot 8.
[0053] like Figure 4 As shown, in use, the extension rod 5 can be fully extended into the handle 6, so that the fixing member 4 and the handle 6 are connected. The extension rod 5 can also be removed, and an external thread is provided on the outer wall of the top end of the handle 6, and the handle 6 is directly connected and fixed to the fixing member 4 through the external thread.
[0054] Preferably, an anti-slip pad 9 is provided on the outer wall of the bottom end of the handle 6 of the electrostatic spray gun, and a plurality of protrusions are provided on the anti-slip pad 9 at intervals to increase the friction between the operator and the electrostatic spray gun, thereby preventing the operator from losing control of the electrostatic spray gun, causing the electrostatic spray gun to fall and causing damage to the electrostatic spray gun.
[0055] In a further embodiment, the bottom end of the extension rod 5 is inserted into the handle 6 from the top end of the handle 6 and then fixed by the stopper 7. An outward clamping ring is provided at the bottom end of the extension rod 5, and an inward limiting ring is provided at the top end of the handle 6. The clamping block is limited by the limiting ring to prevent the extension rod 5 from falling off from the handle due to the operator's misoperation of the extension rod 5.
[0056] Compared with the prior art, the utility model proposes an electrostatic spray gun, wherein an extension portion is provided on a gun body 1, and the bottom end of the extension portion is inserted into a handle 6. By adjusting the length of the extension portion inserted into the handle 6, the spraying range of the electrostatic spray gun can be greatly increased, and the spraying range of the electrostatic spray gun can be increased or decreased. In addition, the utility model further provides an infrared emitter 3 on the electrostatic spray gun, and the infrared light of the infrared emitter 3 is irradiated on the surface of the object to be sprayed, so that the staff can determine the position where the electrostatic spray gun is to be sprayed, thereby preventing the staff from spraying without being sure of the spraying position and repeatedly spraying the surface of the object.
[0057] It should be noted that the terms used above are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0059] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An electrostatic spray gun, characterized in that: include: A gun body, wherein the gun body is used for spraying; An extension part, the top end of which is fixed to one side of the bottom of the gun body; A handle, wherein a limiting piece is provided at the top end of the handle, and the bottom end of the extension part is inserted into the top end of the handle and limited by the limiting piece. The length of the extension part inserted into the handle can be selected according to needs.
2. The electrostatic spray gun according to claim 1, characterized in that: The extension portion comprises: A fixing member, the top of which is fixed to one side of the bottom of the gun body, and the inner wall of which is provided with an internal thread; An extension rod, wherein the outer wall of the top end of the extension rod is provided with an external thread, the top end of the extension rod extends into the fixing member and is connected to the fixing member through the cooperation of the internal thread and the external thread, and the bottom end of the extension rod is inserted into the handle and limited by the limiting member.
3. The electrostatic spray gun according to claim 1, characterized in that: An infrared emitter is installed on the top of the gun body of the electrostatic spray gun, and the infrared light direction of the infrared emitter is the same as the spraying direction of the electrostatic spray gun.
4. The electrostatic spray gun as claimed in claim 3, characterized in that: A slot is arranged on one side of the top of the gun body, and an inserting block is arranged on the infrared emitter. The inserting block is inserted into the slot and the insertion depth thereof can be adjusted.
5. The electrostatic spray gun according to claim 2, characterized in that: The limiting member is a bolt, and a threaded hole is provided on the top of the handle for installing the bolt. The bolt is tightened to support the extension rod inserted into the handle to limit the position.
6. The electrostatic spray gun according to claim 2, characterized in that: An outward clamping ring is provided at the bottom end of the extension rod, and an inward limiting ring is provided at the top end of the handle to prevent the extension rod from falling off from the handle.
7. The electrostatic spray gun according to claim 1, characterized in that: An outer wall of the bottom end of the handle is provided with an anti-slip pad.
8. The electrostatic spray gun according to claim 2, characterized in that: The extension rod is in the shape of a long round rod.
9. The electrostatic spray gun according to claim 7, characterized in that: The outer wall of the anti-slip pad is provided with projections at intervals.
10. The electrostatic spray gun according to claim 8, characterized in that: The handle is cylindrical, hollow inside and the top end is not closed, and the bottom end of the extension rod is inserted into the handle from the top end of the handle that is not closed.