Movable handheld spraying machine

By introducing filter mechanisms such as filter mesh racks and protective pads into the handheld sprayer, the problem of lax sealing between the spray gun and the feed pipe is solved, and the effective filtration and spray uniformity of the paint is achieved, and the user experience and efficiency are improved.

CN223144987UActive Publication Date: 2025-07-25OUSMAN COATING TECH (KUNSHAN) CO LTD
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Patent Information

Application Number
CN202422140586.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-07-25
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

During the long-term use of existing hand-held sprayers, the connection between the spray gun and the feed pipe is prone to be tightly sealed due to wear and collision, resulting in paint leakage and impurities blocking the nozzle, affecting the uniformity of the paint spray.

Method used

A filter mechanism including a filter rack, protective pad, mobile rack and fixed sleeve is designed to ensure the sealing of the connection pipe and the paint filtering inside the connecting pipe through threaded connection and close contact, preventing paint leakage and impurities from entering the spray gun.

Benefits of technology

It realizes effective sealing between the connection between the spray gun and the feed pipe, prevents paint leakage and impurities from entering, ensures uniformity of paint spraying, and reduces inconvenience and material waste during use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223144987U_ABST
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Abstract

The utility model discloses a movable handheld spraying machine, which belongs to the technical field of handheld spraying machines and is characterized by comprising a machine body, a battery arranged at the bottom of the machine body, a nozzle fixedly communicated with the left side of the machine body, a connecting pipe fixedly communicated with the bottom of the machine body, and a filtering mechanism arranged at the bottom of the connecting pipe. A fixing cover is arranged at the bottom of the connecting pipe, a coating barrel is arranged at the bottom of the fixing cover, and a fixing mechanism is arranged on the surface of the coating barrel. And the filtering mechanism comprises a filter screen frame, a protective pad, a movable frame and a fixed sleeve, so that the problems that the joint of a spray gun and a feeding pipe is not tightly sealed due to abrasion, aging and collision of a connecting piece when the spray gun and the feeding pipe are used for a spraying machine for a long time in the prior art, paint leakage is easily caused, and the service life of the spray gun is prolonged are solved. And impurities in the coating are not filtered and move into the spray gun, so that a nozzle of the spray gun is possibly blocked, and the coating is sprayed unevenly and even cannot be sprayed out.
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Description

Technical Field

[0001] The utility model relates to the technical field of hand-held spraying machines, in particular to a movable hand-held spraying machine. Background Technique

[0002] The movable hand-held spraying machine is a tool with high practicability and efficiency, providing a convenient and efficient solution for various spraying operations.

[0003] The air inlet pipe of the existing hand-held spraying machine is usually arranged at the handle, which makes it difficult for the hand-held spraying machine to be placed stably upright on the ground. If the hand-held spraying machine is placed sideways, the paint in the spray pot may pour and leak. Therefore, the staff needs to hold the hand-held spraying machine all the time during the use of the hand-held spraying machine, which is likely to cause hand fatigue of the staff. When the staff adjusts the spraying workpiece, they may accidentally touch the switch, resulting in the paint being sprayed elsewhere.

[0004] The existing patent (publication number: CN219880268U) discloses a hand-held spraying machine, including a spraying machine body. An installation chamber is opened inside the spraying machine body. A limiting rod is arranged inside the installation chamber. A spring and a pull ring are sleeved on the surface of the limiting rod. Two ends of the spring are respectively connected to the inner wall of the installation chamber and the pull ring. One end of the limiting rod is equipped with a limiting ring, and the other end of the limiting rod is connected with a limiting block through a bearing. The bottom end of the spraying machine body is equipped with an air inlet pipe, and the air inlet pipe is communicated with the installation chamber. By pulling the limiting rod to drive the limiting block to cross the air inlet pipe, and then rotating the limiting rod to drive the limiting ring to rotate synchronously, the limiting ring can be stuck outside the spraying machine body. When spraying stops, the limiting rod is rotated to the initial angle, and under the elastic force of the spring, the limiting rod drives the limiting block to be stuck between the feed pipe and the air inlet pipe of the spraying machine body again, avoiding the problem that the staff accidentally touches the switch and the paint is sprayed out.

[0005] In view of the above problems, the existing patent gives a solution. However, the above solution has certain limitations in the actual use process. During the long-term use of the spraying machine, the connection between the spray gun and the feeding pipe is prone to poor sealing due to wear, aging and collision of the connecting parts, resulting in paint leakage. Moreover, the impurities in the paint move to the inside of the spray gun without being filtered, which may block the nozzle of the spray gun, resulting in uneven paint spraying or even inability to spray.

[0006] Therefore, a movable hand-held spraying machine is proposed. Content of the Utility Model

[0007] The purpose of the present utility model is to provide a movable handheld spraying machine, which can solve the problems that during long-term use of the spraying machine, the connection between the spray gun and the feeding pipe is prone to poor sealing due to wear, aging and collision of the connecting parts, resulting in paint leakage, and impurities in the paint move into the interior of the spray gun without being filtered, which may block the nozzle of the spray gun, leading to uneven paint spraying or even inability to spray.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A movable handheld spraying machine includes a machine body. A battery is provided at the bottom of the machine body. A nozzle is fixedly communicated with the left side of the machine body. A connecting pipe is fixedly communicated with the bottom of the machine body. A filtering mechanism is provided at the bottom of the connecting pipe. A fixing cover is provided at the bottom of the connecting pipe. A paint bucket is provided at the bottom of the fixing cover. A fixing mechanism is provided on the surface of the paint bucket;

[0009] The filtering mechanism includes a filter screen frame, a protective pad, a movable frame and a fixing sleeve. The bottom of the filter screen frame extends into the interior of the movable frame and is threadedly connected to the interior of the movable frame. The interior of the protective pad is fixedly connected to the surface of the movable frame. The surface of the protective pad contacts the inner wall of the connecting pipe. The bottom of the movable frame is fixedly connected to the interior of the fixing sleeve. The top of the fixing sleeve extends to the surface of the connecting pipe and is in close contact with the surface of the connecting pipe.

[0010] Preferably, a support frame is fixedly connected to the surface of the fixing cover. A sealing pad is fixedly connected to the surface of the paint bucket. The bottom of the support frame is in close contact with the top of the sealing pad.

[0011] Preferably, a rotating sleeve is rotatably connected to the surface of the paint bucket. A connecting frame is fixedly connected to the surface of the rotating sleeve. The top of the paint bucket extends into the interior of the support frame and is threadedly connected to the interior of the support frame.

[0012] Preferably, three support columns are threadedly connected to the top of the connecting frame. The top of the support column passes through the support frame and is threadedly connected to the interior of the support frame.

[0013] Preferably, a connecting groove is opened at the top of the fixing cover. The bottom of the connecting pipe passes through the connecting groove and extends into the interior of the paint bucket.

[0014] Preferably, a sealing ring is fixedly connected to the interior of the connecting groove. The surface of the sealing ring is in close contact with the surface of the connecting pipe.

[0015] Preferably, a fixing block is fixedly connected to the surface of the connecting pipe. The surface of the fixing block is threadedly connected to the interior of the connecting groove.

[0016] Preferably, a limiting ring is fixedly connected to the surface of the fixed block, and the bottom of the limiting ring contacts the top of the fixed cover.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. In this application, the surface of the filter screen frame is moved into the interior of the moving frame, and the moving frame fixes and limits the filter screen frame. The moving frame drives the filter screen frame to move into the interior of the connecting pipe through the protective pad, so that the protective pad can conveniently protect the interior of the connecting pipe. The interior of the fixing sleeve is in close contact with the surface of the connecting pipe, so that the connecting pipe can conveniently drive the moving frame to move into the paint tank to contact the paint, and the moving frame can conveniently filter the paint through the filter screen frame;

[0019] 2. In this application, the top of the paint bucket extends into the interior of the support frame for fixation, and the bottom of the support frame is in close contact with the top of the sealing pad, so that the sealing pad can conveniently seal the connection between the paint bucket and the support frame. Thus, the connecting frame drives the support column under the limitation of the rotating sleeve, and the top of the support column passes through the support frame and is threadedly connected to the interior of the support frame, so as to conveniently support and protect the paint bucket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structure diagram of the movable hand-held spraying machine of the present utility model;

[0021] Figure 2 is the three-dimensional connection schematic diagram of the connecting pipe and the fixed cover in the present utility model;

[0022] Figure 3 is the three-dimensional connection schematic diagram of the fixed block and the connection groove in the present utility model;

[0023] Figure 4 is the three-dimensional connection schematic diagram of the filtering mechanism in the present utility model;

[0024] Figure 5 is the three-dimensional connection schematic diagram of the fixing mechanism in the present utility model.

[0025] In the figure, 1. Body; 2. Nozzle; 3. Connecting pipe; 4. Fixed cover; 5. Paint bucket; 6. Fixing mechanism; 601. Support frame; 602. Sealing pad; 603. Support column; 604. Rotating sleeve; 605. Connecting frame; 7. Battery; 8. Filtering mechanism; 801. Filter screen frame; 802. Protective pad; 803. Moving frame; 804. Fixing sleeve; 9. Sealing ring; 10. Limiting ring; 11. Fixed block; 12. Connection groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0028] A movable handheld spraying machine includes a machine body 1, a battery 7 is arranged at the bottom of the machine body 1, a nozzle 2 is fixedly communicated with the left side of the machine body 1, a connecting pipe 3 is fixedly communicated with the bottom of the machine body 1, a filtering mechanism 8 is arranged at the bottom of the connecting pipe 3, a fixing cover 4 is arranged at the bottom of the connecting pipe 3, a paint bucket 5 is arranged at the bottom of the fixing cover 4, and a fixing mechanism 6 is arranged on the surface of the paint bucket 5;

[0029] The filtering mechanism 8 includes a filter screen frame 801, a protective pad 802, a moving frame 803 and a fixing sleeve 804. The bottom of the filter screen frame 801 extends into the interior of the moving frame 803 and is threadedly connected to the interior of the moving frame 803. The interior of the protective pad 802 is fixedly connected to the surface of the moving frame 803. The surface of the protective pad 802 contacts the inner wall of the connecting pipe 3. The bottom of the moving frame 803 is fixedly connected to the interior of the fixing sleeve 804. The top of the fixing sleeve 804 extends to the surface of the connecting pipe 3 and is in close contact with the surface of the connecting pipe 3.

[0030] In this embodiment: By threadedly connecting the surface of the filter screen frame 801 to the interior of the moving frame 803, it is convenient to fix and limit the filter screen frame 801 by the moving frame 803, and make the surface of the protective pad 802 contact the inner wall of the connecting pipe 3. Thus, it is convenient for the moving frame 803 to drive the filter screen frame 801 to move into the interior of the connecting pipe 3 through the protective pad 802, which is convenient for the protective pad 802 to protect the interior of the connecting pipe 3. By making the interior of the fixing sleeve 804 in close contact with the surface of the connecting pipe 3, it is convenient to fix the moving frame 803 by the fixing sleeve 804. Thus, it is convenient for the connecting pipe 3 to move into the interior of the paint tank through the fixing cover 4 to contact the paint, and it is convenient for the moving frame 803 to filter the paint through the filter screen frame 801.

[0031] Specifically, as Figure 5 shown, a support frame 601 is fixedly connected to the surface of the fixing cover 4, a sealing pad 602 is fixedly connected to the surface of the paint bucket 5, and the bottom of the support frame 601 is in close contact with the top of the sealing pad 602.

[0032] Specifically, as Figure 5As shown, a rotating sleeve 604 is rotatably connected to the surface of the paint bucket 5. A connecting frame 605 is fixedly connected to the surface of the rotating sleeve 604. The top of the paint bucket 5 extends into the inside of the support frame 601 and is threadedly connected to the inside of the support frame 601.

[0033] Specifically, as Figure 5 shown, three support columns 603 are threadedly connected to the top of the connecting frame 605. The top of the support columns 603 passes through the support frame 601 and is threadedly connected to the inside of the support frame 601.

[0034] In this embodiment: By threadedly connecting the surface of the support column 603 to the inside of the support frame 601, it is convenient to make the support column 603 support and protect the paint bucket 5 through the connecting frame 605, achieving the effect of supporting and protecting the paint bucket 5.

[0035] Specifically, as Figure 2 、 Figure 3 shown, a connecting groove 12 is opened at the top of the fixed cover 4. The bottom of the connecting pipe 3 passes through the connecting groove 12 and extends into the paint bucket 5.

[0036] Specifically, as Figure 3 shown, a sealing ring 9 is fixedly connected to the inside of the connecting groove 12. The surface of the sealing ring 9 is in close contact with the surface of the connecting pipe 3.

[0037] In this embodiment: By making the surface of the sealing ring 9 in close contact with the surface of the connecting pipe 3, the sealing ring 9 can seal the connecting pipe 3, achieving the effect of sealing the sealing ring 9.

[0038] Specifically, as Figure 3 shown, a fixing block 11 is fixedly connected to the surface of the connecting pipe 3. The surface of the fixing block 11 is threadedly connected to the inside of the connecting groove 12.

[0039] Specifically, as Figure 2 、 Figure 3 shown, a limiting ring 10 is fixedly connected to the surface of the fixing block 11. The bottom of the limiting ring 10 contacts the top of the fixed cover 4.

[0040] In this embodiment: By making the bottom of the limiting ring 10 contact the top of the fixed cover 4, it is convenient to make the limiting ring 10 limit the connecting pipe 3 through the fixing block 11, achieving the effect of limiting the connecting pipe 3.

[0041] Working principle: When spraying the machine body 1 through the nozzle 2, move the surface of the filter screen frame 801 into the inside of the moving frame 803 so that the moving frame 803 fixes and limits the filter screen frame 801, and the moving frame 803 drives the filter screen frame 801 to move into the inside of the connecting pipe 3 through the protective pad 802, so as to facilitate the protection of the inside of the connecting pipe 3 by the protective pad 802. Make the inside of the fixing sleeve 804 in close contact with the surface of the connecting pipe 3, so as to facilitate the fixing of the moving frame 803 by the fixing sleeve 804. Then extend the top of the paint bucket 5 into the inside of the support frame 601 for fixing, and make the bottom of the support frame 601 in close contact with the top of the sealing pad 602, so as to facilitate the sealing of the connection between the paint bucket 5 and the support frame 601 by the sealing pad 602. Thus, it is convenient for the connecting frame 605 to drive the support column 603 under the limit of the rotating sleeve 604, and the top of the support column 603 passes through the support frame 601 and is threadedly connected to the inside of the support frame 601, so as to facilitate the support and protection of the paint bucket 5. Then the connecting pipe 3 drives the limit ring 10 to move into the inside of the connection groove 12 through the fixing block 11, and the surface of the fixing block 11 is threadedly connected to the inside of the connection groove 12, so as to facilitate the contact between the bottom of the limit ring 10 and the top of the fixed cover 4 to limit the connecting pipe 3. Thus, it is convenient for the connecting pipe 3 to drive the moving frame 803 to move into the paint tank to contact the paint, so as to facilitate the filtering of the paint by the moving frame 803 through the filter screen frame 801, solving the problem that in the long-term use of the spraying machine, due to the wear, aging and collision of the connecting parts at the connection between the spray gun and the feed pipe, it is easy for the connection between the spray gun and the feed pipe to be not tightly sealed, resulting in paint leakage, and the impurities in the paint move into the inside of the spray gun without being filtered, which may block the nozzle 2 of the spray gun, resulting in uneven paint spraying or even inability to spray.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A movable handheld spraying machine, comprising a machine body (1), and a battery (7) is arranged at the bottom of the machine body (1), characterized in that: A nozzle (2) is fixedly connected and communicated on the left side of the body (1). A connecting pipe (3) is fixedly connected and communicated at the bottom of the body (1). A filtering mechanism (8) is arranged at the bottom of the connecting pipe (3). A fixing cover (4) is arranged at the bottom of the connecting pipe (3). A paint bucket (5) is arranged at the bottom of the fixing cover (4). A fixing mechanism (6) is arranged on the surface of the paint bucket (5). The filtering mechanism (8) includes a filter screen frame (801), a protective pad (802), a moving frame (803) and a fixing sleeve (804). The bottom of the filter screen frame (801) extends into the interior of the moving frame (803) and is threadedly connected to the interior of the moving frame (803). The interior of the protective pad (802) is fixedly connected to the surface of the moving frame (803). The surface of the protective pad (802) is in contact with the inner wall of the connecting pipe (3). The bottom of the moving frame (803) is fixedly connected to the interior of the fixing sleeve (804). The top of the fixing sleeve (804) extends to the surface of the connecting pipe (3) and is in close contact with the surface of the connecting pipe (3).

2. The movable hand-held spraying machine according to claim 1, wherein: A support frame (601) is fixedly connected to the surface of the fixing cover (4). A sealing pad (602) is fixedly connected to the surface of the paint bucket (5). The bottom of the support frame (601) is in close contact with the top of the sealing pad (602).

3. A movable hand-held spraying machine according to claim 1, wherein: A rotating sleeve (604) is rotatably connected to the surface of the paint bucket (5). A connecting frame (605) is fixedly connected to the surface of the rotating sleeve (604). The top of the paint bucket (5) extends into the interior of the support frame (601) and is threadedly connected to the interior of the support frame (601).

4. The movable hand-held spraying machine according to claim 3, characterized in that: Three support columns (603) are threadedly connected to the top of the connecting frame (605). The top of the support column (603) passes through the support frame (601) and is threadedly connected to the interior of the support frame (601).

5. A movable hand-held spraying machine according to claim 1, characterized in that: A connecting groove (12) is formed at the top of the fixing cover (4). The bottom of the connecting pipe (3) passes through the connecting groove (12) and extends into the interior of the paint bucket (5).

6. The portable hand-held spraying machine according to claim 5, wherein: A sealing ring (9) is fixedly connected to the interior of the connecting groove (12). The surface of the sealing ring (9) is in close contact with the surface of the connecting pipe (3).

7. A movable hand-held spraying machine according to claim 1, characterized in that: A fixing block (11) is fixedly connected to the surface of the connecting pipe (3). The surface of the fixing block (11) is threadedly connected to the interior of the connecting groove (12).

8. The movable hand-held spraying machine according to claim 7, characterized in that: A limiting ring (10) is fixedly connected to the surface of the fixing block (11). The bottom of the limiting ring (10) is in contact with the top of the fixing cover (4).

Citation Information

Patent Citations

  • Handheld spraying machine

    CN219880268U