Manual electrostatic spray gun

Abstract

The utility model discloses a manual electrostatic spray gun, which belongs to the technical field of electrostatic spray guns and comprises a manual spray gun body, a rotating trigger arranged on the manual spray gun body, a limiting hole formed in the bottom of the trigger, a separation block arranged at a grab handle, a trigger work locking mechanism used for limiting the trigger at the maximum stroke, and a trigger mistaken touch prevention mechanism. The rotation of the trigger is limited. According to the technical scheme, the trigger work locking mechanism is arranged, when large-range continuous spraying work needs to be carried out, the trigger cannot be automatically reset through the clamping effect, the manual spray gun body can continuously work all the time, and at the moment, a user only needs to move the manual spray gun body to a designated position for spraying; the hand fatigue of a user can be remarkably relieved, when the manual spray gun body is not used, the trigger mistaken touch prevention mechanism can play a role in limiting rotation of the trigger, and then mistaken touch prevention is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spray guns, in particular to a manual electrostatic spray gun. Background Art

[0002] A manual electrostatic spray gun is a device that uses the principle of static electricity for spraying, and is widely used in surface coating in fields such as automobiles, household appliances, furniture, and construction. Its working principle is that a high-voltage electrostatic generator generates an electrostatic field to charge the paint particles, and under the action of the electrostatic field, the paint particles are adsorbed onto the surface of the object to be painted to form a uniform coating. This spraying method has the advantages of high spraying efficiency, good coating quality, and high paint utilization rate.

[0003] When the existing manual electrostatic spray gun is in use, it usually requires the user to continuously press the trigger to perform continuous spraying. When the user releases the trigger with the hand, the spray gun automatically stops working. In the face of large-scale continuous spraying work, in order to ensure the uniformity of spraying, the user often needs to continuously press hard with the hand for a long time, which is likely to cause hand fatigue and is difficult to perform long-term spraying work efficiently. In addition, when the spray gun accidentally falls, it may trigger the trigger due to collision, causing the nozzle to spray paint and damaging the working environment or spraying task, which is rather inconvenient. Therefore, a manual electrostatic spray gun is proposed for the above problems. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a manual electrostatic spray gun. A trigger working locking mechanism is provided in the manual electrostatic spray gun. When large-scale continuous spraying work needs to be carried out, after the trigger is pulled to the maximum stroke, the top of the sliding rod is pushed so that the fixedly connected insertion shaft is inserted into the limiting hole opened at the bottom of the trigger. At this time, due to the clamping effect, the trigger cannot automatically reset, and the manual spray gun body can always work continuously. At this time, the user only needs to move the manual spray gun body to spray at the specified position, which can significantly relieve the hand fatigue of the user. In addition, when the manual spray gun body is not in use, the L-shaped clamping member is rotated to be buckled on the clamping bar. Since the clamping bar will rotate synchronously when the trigger is pulled, when the rotation of the clamping bar is restricted by the L-shaped clamping member, the rotation of the trigger can be restricted, thereby realizing anti-misoperation, and solving the technical problems that in the prior art, when the manual spray gun performs large-scale continuous spraying work, the user needs to continuously press hard with the hand for a long time, which is likely to cause hand fatigue, and it is easy to spray paint from the nozzle due to misoperation of the trigger, damaging the working environment or spraying task.

[0005] The technical solution adopted by the embodiments of the present application to solve its technical problems is:

[0006] A manual electrostatic spray gun, comprising a manual spray gun body, on which a rotatable trigger is provided, and a limiting hole is opened at the bottom of the trigger. In addition, a partition block is provided at the handle, a trigger working locking mechanism for restricting the trigger at the maximum stroke, and a trigger anti-misoperation mechanism for restricting the rotation of the trigger. Among them, the trigger working locking mechanism includes a slide bar slidably arranged in the partition block, and a support plate provided with a plug shaft is fixedly connected to the top end of the slide bar. The trigger anti-misoperation mechanism includes an L-shaped clamping member rotatably arranged on the manual spray gun body, and a clamping bar fixedly connected to the trigger.

[0007] Through the above structural form, the provided trigger working locking mechanism can, when a large-scale continuous spraying operation is required, after pulling the trigger to the maximum stroke, push the top end of the slide bar so that the fixedly connected plug shaft is inserted into the limiting hole opened at the bottom of the trigger. At this time, due to the clamping effect, the trigger cannot automatically reset, and the manual spray gun body can always work continuously. At this time, the user only needs to move the manual spray gun body to spray at the specified position, which can significantly relieve the fatigue of the user's hand. In addition, when the manual spray gun body is not in use, rotate the L-shaped clamping member to make it snap onto the clamping bar. Since the clamping bar will rotate synchronously when the trigger is pulled, when the L-shaped clamping member restricts the rotation of the clamping bar, it can play a role in restricting the rotation of the trigger, thereby realizing anti-misoperation.

[0008] In a possible implementation manner, when restricting the trigger to keep it at the maximum stroke, the plug shaft is inserted into the limiting hole. When restricting the rotation of the trigger, the L-shaped clamping member snaps onto the clamping bar.

[0009] Through the above structural form, the plug shaft can play a role of clamping and limiting the trigger in the way that the plug shaft is inserted into the limiting hole, so that it can stay in the working state without the user continuously applying force. The L-shaped clamping member can be used to snap onto the clamping bar to restrict the trigger from being pulled by means of the clamping effect.

[0010] In a possible implementation manner, the slide bar is a rod body structure with a rounded rectangular cross-section, and a lower dial plate is fixedly connected to its bottom end, and the upper end surface of the lower dial plate can be closely attached to the lower end surface of the partition block.

[0011] Through the above structural form, the cross-sectional form of the slide bar can ensure that it cannot rotate during sliding, thereby avoiding the position of the plug shaft from shifting due to rotation. The lower dial plate can prevent the slide bar from slipping out of the partition block, and at the same time it is also convenient for the user to push and pull the slide bar to slide through it.

[0012] In a possible implementation manner, both the support plate and the lower dial plate are made of magnetic metal, and upper and lower magnet sheets are respectively embedded in the upper and lower end surfaces of the partition block.

[0013] Through the above-mentioned structural form, the adsorption effect of the upper and lower magnet sheets can play a certain limiting role on the current position of the slide rod, preventing it from sliding freely and causing the restraining effect on the trigger to fail, or sliding out when the trigger is working normally and hindering the movement of the trigger.

[0014] In one possible implementation, the manual spray gun body is provided with a first limiting plate and a second limiting plate on both sides of the L-shaped clamping piece, and when the L-shaped clamping piece is clamped with the clamping strip, the L-shaped clamping piece is in close contact with the first limiting plate, and after the L-shaped clamping piece is rotated ninety degrees, it is in close contact with the second limiting plate.

[0015] The above-mentioned structural form can restrain the rotational travel of the L-shaped clamping member, thereby preventing the L-shaped clamping member from rotating excessively and affecting the convenience of use.

[0016] In a possible implementation, an auxiliary card slot is provided on the card strip, and an auxiliary card head having the same size as the auxiliary card slot is provided at the front end of the L-shaped card connector, wherein the auxiliary card head is made of elastic rubber material.

[0017] With the above-mentioned structural form, when the L-shaped clamping piece is buckled on the clamping strip, the auxiliary clamping head will be simultaneously clamped into the auxiliary clamping slot, thereby achieving the effect of strengthening the clamping effect.

[0018] In a possible implementation, the two surfaces of the L-shaped clamping component that contact the first limiting plate and the second limiting plate are provided with installation grooves, positioning magnets are installed in the installation grooves, and both the first limiting plate and the second limiting plate are made of magnetic metal.

[0019] With the above-mentioned structural form, when the L-shaped clip moves to the two ends of the travel range, the positioning magnet sheet can be used to adsorb and fix it, thereby preventing it from rotating by itself and causing inconvenience in use.

[0020] In a possible implementation, a paddle is fixedly provided on the outer side surface of the L-shaped clamping component, and the edges and corners of the paddle are processed to form rounded corners.

[0021] The above-mentioned structural form can facilitate the user to use the paddle to move the L-shaped clamping part to rotate it to a specified position.

[0022] In summary, the utility model includes the following beneficial technical effects:

[0023] When a large - scale continuous spraying operation is required, after pulling the trigger to its maximum stroke, push the top of the sliding rod so that the fixedly connected insertion shaft is inserted into the limit hole opened at the bottom of the trigger. At this time, due to the clamping effect, the trigger cannot automatically reset, and the manual spray gun body can always work continuously. At this time, the user only needs to move the manual spray gun body to spray at the specified position, which can significantly relieve the user's hand fatigue;

[0024] In addition, when the manual spray gun body is not in use, rotate the L - shaped clamping part so that it is buckled on the clamping strip. Since the clamping strip will rotate synchronously when the trigger is pulled, when the rotation of the clamping strip is restricted by the L - shaped clamping part, it can play a role in restricting the rotation of the trigger, thereby realizing anti - accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 is a schematic diagram of the structure of the trigger working locking mechanism of the present utility model;

[0028] Figure 3 is a schematic diagram of the partial structure of the trigger working locking mechanism of the present utility model;

[0029] Figure 4 is a schematic diagram of the structure of the trigger anti - accidental touch mechanism of the present utility model;

[0030] Figure 5 is a schematic diagram of the partial structure of the trigger anti - accidental touch mechanism of the present utility model.

[0031] In the figure: 1. Manual spray gun body; 11. Trigger; 111. Limit hole; 12. Partition block; 2. Trigger working locking mechanism; 21. Sliding rod; 22. Support plate; 23. Insertion shaft; 24. Lower dial plate; 25. Upper magnet sheet; 26. Lower magnet sheet; 3. Trigger anti - accidental touch mechanism; 31. L - shaped clamping part; 311. Auxiliary clamping head; 312. Installation groove; 32. Clamping strip; 321. Auxiliary clamping groove; 33. First limit piece; 34. Second limit piece; 35. Positioning magnet sheet; 36. Dial piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The technical solutions in the embodiments of the present application are to solve the problems in the above - mentioned background technology, and the general idea is as follows:

[0033] As Figure 1As shown in the figure, a manual electrostatic spray gun provided in this embodiment includes a manual spray gun body 1, on which a rotating trigger 11 is provided, and a limiting hole 111 is opened at the bottom of the trigger 11. In addition, a partition block 12 is provided at the handle, a trigger working locking mechanism 2 for restricting the trigger 11 at the maximum stroke so that the manual spray gun body 1 can continuously work automatically, and a trigger anti-misoperation mechanism 3 for restricting the rotation of the trigger 11 to prevent misoperation.

[0034] As Figures 2 - 3 shown, the trigger working locking mechanism 2 includes a sliding rod 21 slidably arranged in the partition block 12. A support plate 22 provided with a plug shaft 23 is fixedly connected to the top end of the sliding rod 21. When restricting the trigger 11 to keep it at the maximum stroke, the plug shaft 23 is inserted into the limiting hole 111. When large-scale continuous spraying work needs to be carried out, after pulling the trigger 11 to the maximum stroke, push the top end of the sliding rod 21 so that the fixedly connected plug shaft 23 is inserted into the limiting hole 111 opened at the bottom of the trigger 11. At this time, due to the clamping effect, the trigger 11 cannot automatically reset, and the manual spray gun body 1 can always work continuously. At this time, the user only needs to move the manual spray gun body 1 to spray at the specified position, which can significantly relieve the hand fatigue of the user.

[0035] As Figures 4 - 5 shown, the trigger anti-misoperation mechanism 3 includes an L-shaped clamping member 31 rotatably arranged on the manual spray gun body 1 and a clamping bar 32 fixedly connected to the trigger 11. When restricting the rotation of the trigger 11, the L-shaped clamping member 31 is buckled on the clamping bar 32. When the manual spray gun body 1 is not in use, rotate the L-shaped clamping member 31 to buckle it on the clamping bar 32. Since the clamping bar 32 will rotate synchronously when the trigger 11 is pulled, when the rotation of the clamping bar 32 is restricted by the L-shaped clamping member 31, the rotation of the trigger 11 can be restricted, thereby realizing anti-misoperation.

[0036] As Figures 2 - 3 shown, the sliding rod 21 is a rod body structure with a rounded rectangular cross-section, and a lower dial plate 24 is fixedly connected to its bottom end. The upper end surface of the lower dial plate 24 can be closely attached to the lower end surface of the partition block 12. Through the above structural form, the cross-sectional form of the sliding rod 21 can ensure that it cannot rotate during sliding, thereby avoiding the position of the plug shaft 23 from shifting due to rotation. The lower dial plate 24 can prevent the sliding rod 21 from slipping out of the partition block 12 and is also convenient for the user to push and pull the sliding rod 21 to slide.

[0037] In addition, the support plate 22 and the lower shift plate 24 are both made of magnetic metal, and the upper and lower end surfaces of the partition block 12 are respectively embedded with an upper magnet sheet 25 and a lower magnet sheet 26. Through the above-mentioned structural form, the adsorption effect of the upper magnet sheet 25 and the lower magnet sheet 26 can play a certain limiting role on the current position of the slide bar 21, thereby preventing it from sliding freely and causing the restraining effect on the trigger 11 to fail, or sliding out when the trigger 11 is working normally and hindering the movement of the trigger 11.

[0038] like Figures 4 - 5 As shown, the manual spray gun body 1 is provided with a first limit plate 33 and a second limit plate 34 on both sides of the L-shaped clamp 31, and when the L-shaped clamp 31 is clamped with the clamping strip 32, the L-shaped clamp 31 is in close contact with the first limit plate 33, and after the L-shaped clamp 31 is rotated ninety degrees, it is in close contact with the second limit plate 34. Through the above-mentioned structural form, the rotation stroke of the L-shaped clamp 31 can be constrained to avoid excessive rotation and affect the convenience of use.

[0039] Among them, an auxiliary card slot 321 is opened on the card strip 32, and an auxiliary card head 311 with the same size as the auxiliary card slot 321 is provided at the front end of the L-shaped card connector 31, wherein the auxiliary card head 311 is made of elastic rubber material. Through the above-mentioned structural form, when the L-shaped card connector 31 is buckled on the card strip 32, the auxiliary card head 311 will be synchronously snapped into the auxiliary card slot 321, thereby achieving the effect of strengthening the clamping effect.

[0040] In addition, installation grooves 312 are provided on the two surfaces of the L-shaped clip 31 that contact the first limiting plate 33 and the second limiting plate 34. A positioning magnet sheet 35 is installed in the installation groove 312, and the first limiting plate 33 and the second limiting plate 34 are both made of magnetic metal. Through the above-mentioned structural form, when the L-shaped clip 31 moves to the two ends of the travel range, it can be adsorbed and fixed by the positioning magnet sheet 35, thereby preventing it from rotating on its own and causing inconvenience in use.

[0041] At the same time, a paddle 36 is fixedly provided on the outer side of the L-shaped clamp 31, and the edges and corners of the paddle 36 are processed to have rounded corners. Through the above-mentioned structural form, it is convenient for the user to use the paddle 36 to paddle the L-shaped clamp 31 to rotate it to a specified position.

[0042] The use principle and use process of this utility model:

[0043] When a large-scale continuous spraying operation is required, after the trigger 11 is pulled to the maximum stroke, the top of the slide rod 21 is pushed so that the fixedly connected insertion shaft 23 is inserted into the limit hole 111 opened at the bottom of the trigger 11. At this time, due to the clamping effect, the trigger 11 cannot automatically reset, and the manual spray gun body 1 can always work continuously. At this time, the user only needs to move the manual spray gun body 1 to spray at the specified position, which can significantly relieve the hand fatigue of the user; during the above process, the adsorption effect of the upper magnet sheet 25 and the lower magnet sheet 26 can play a certain role in restricting the current position of the slide rod 21, preventing it from sliding freely and causing the restraint effect on the trigger 11 to fail, or sliding out during the normal operation of the trigger 11 and hindering the movement of the trigger 11.

[0044] In addition, when the manual spray gun body 1 is not in use, the L-shaped clamping member 31 is rotated to be buckled on the clamping strip 32. Since the clamping strip 32 will rotate synchronously when the trigger 11 is pulled, when the rotation of the clamping strip 32 is restricted by the L-shaped clamping member 31, the rotation of the trigger 11 can be restricted, thereby realizing anti-misoperation; during the above process, when the L-shaped clamping member 31 moves to both ends of the stroke range, the positioning magnet sheet 35 can play a role in adsorbing and fixing it, preventing it from rotating freely and causing inconvenience in use.

[0045] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. The obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A manual electrostatic spray gun, characterized in that: include: A manual spray gun body (1) is provided with a rotating trigger (11), and a limit hole (111) is provided at the bottom of the trigger (11). In addition, a partition block (12) is provided at the handle; A trigger locking mechanism (2) for limiting the trigger (11) to a maximum travel position; A trigger anti-accidental-trigger mechanism (3) for limiting the rotation of the trigger (11); The trigger working locking mechanism (2) comprises a slide bar (21) slidably arranged in the partition block (12), and a support plate (22) provided with a plug-in shaft (23) is fixedly connected to the top end of the slide bar (21); The trigger accidental touch prevention mechanism (3) comprises an L-shaped clamping component (31) rotatably arranged on the manual spray gun body (1), and a clamping strip (32) fixedly connected to the trigger (11).

2. A manual electrostatic spray gun according to claim 1, characterized in that: When the trigger (11) is limited to maintain a maximum stroke, the plug-in shaft (23) is plugged into the limiting hole (111); when the trigger (11) is limited to rotate, the L-shaped clamping piece (31) is buckled onto the clamping strip (32).

3. A manual electrostatic spray gun according to claim 1, characterized in that: The sliding rod (21) is a rod body structure with a rounded rectangular cross-section, and a lower shifting plate (24) is fixedly connected to its bottom end, and the upper end surface of the lower shifting plate (24) can be tightly fitted with the lower end surface of the partition block (12).

4. A manual electrostatic spray gun according to claim 3, characterized in that: The supporting plate (22) and the lower shifting plate (24) are both made of magnetic metal, and the upper and lower end surfaces of the partition block (12) are respectively embedded with an upper magnet sheet (25) and a lower magnet sheet (26).

5. A manual electrostatic spray gun according to claim 1, characterized in that: The manual spray gun body (1) is provided with a first limiting piece (33) and a second limiting piece (34) on both sides of the L-shaped clamping piece (31), and when the L-shaped clamping piece (31) is clamped with the clamping strip (32), the L-shaped clamping piece (31) is in close contact with the first limiting piece (33), and after the L-shaped clamping piece (31) is rotated ninety degrees, it is in close contact with the second limiting piece (34).

6. A manual electrostatic spray gun according to claim 1, characterized in that: The clamping strip (32) is provided with an auxiliary clamping slot (321), and the front end of the L-shaped clamping piece (31) is provided with an auxiliary clamping head (311) having the same size as the auxiliary clamping slot (321), wherein the auxiliary clamping head (311) is made of elastic rubber material.

7. A manual electrostatic spray gun according to claim 1, characterized in that: The two surfaces of the L-shaped clamping member (31) that contact the first limiting piece (33) and the second limiting piece (34) are provided with mounting grooves (312), a positioning magnet piece (35) is installed in the mounting groove (312), and both the first limiting piece (33) and the second limiting piece (34) are made of magnetic metal material.

8. A manual electrostatic spray gun according to claim 1, characterized in that: A paddle (36) is fixedly provided on the outer side surface of the L-shaped clamping component (31), and the edges and corners of the paddle (36) are processed to form rounded corners.

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