Portable handheld sprayer
By adding a support frame and a movable frame between the spray bottle and the liquid inlet, and by utilizing a drive assembly and transmission structure, the problem of loose threaded connections in the sprayer was solved, achieving a stable connection between the spray bottle and the liquid inlet and improving the performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-13
AI Technical Summary
In existing handheld sprayers, the threaded connection between the ink reservoir and the spray gun body is prone to loosening, resulting in an unstable connection and affecting the performance.
A support frame and a movable frame are added between the spray bottle and the liquid inlet. Through a drive assembly and a transmission structure, the movable frame rotates on the fixed threaded rod and is inserted tightly, thus achieving a stable connection between the spray bottle and the liquid inlet.
It improves the stability of the connection between the spray bottle and the liquid inlet, ensuring a tight fit during use.
Smart Images

Figure CN223988607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying equipment technology, specifically to a portable handheld sprayer. Background Technology
[0002] A handheld sprayer is a spraying device mainly used for painting various surfaces. A portable marking sprayer is disclosed in patent publication number CN101491966A, which discloses the structure of the sprayer. However, the connection between the ink reservoir and the gun body is usually a threaded connection, which makes it easy for the threads to loosen during actual use. This results in an unstable connection between the ink reservoir and the gun body, affecting the performance. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a portable handheld sprayer that is simple in structure, reasonable in design, and easy to use. Based on the existing threaded connection, a reinforced connection is used to make the connection between the liquid inlet and the spray bottle more secure, thereby improving the tightness of the spray bottle during use.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a gun body, and the liquid inlet end of the gun body is fitted with a spray bottle by a threaded connection;
[0005] Also includes:
[0006] A support frame, which is fitted onto and fixed to the spray bottle;
[0007] A fixing bracket is sleeved and fixed on the liquid inlet end and is located on the upper side of the spray bottle;
[0008] The movable frame is movably sleeved on the liquid inlet end, and the horizontal end of the movable frame is located between the fixed frame and the spray bottle. The liquid inlet end is provided with slide rails on the left and right sides, and the movable frame is slidably mounted on the slide rails. The vertical end of the movable frame is located between the spray bottle and the support frame.
[0009] A drive assembly, wherein the drive assembly is disposed inside the fixing frame;
[0010] Two fixed threaded rods are fixedly mounted on the inner ring wall of the support frame, respectively, with the two rods facing each other from the left and right.
[0011] Two movable threaded tubes are provided, each being threadedly fitted onto a fixed threaded rod, with the inner end of the movable threaded tube inserted into a movable frame.
[0012] With the above technical solution, after the spray bottle is screwed onto the liquid inlet end, the drive component drives the movable frame, so that the vertical end of the movable frame is positioned between the spray bottle and the support frame. The movable threaded tube is manually rotated to rotate and move on the fixed threaded rod until it is inserted into the movable frame to position the movable frame.
[0013] As a further improvement of this utility model, the slide rail is positioned on the upper side of the spray bottle;
[0014] As a further improvement of this utility model, a handle is provided on the movable threaded tube;
[0015] The above technical solution design assists in rotating the movable threaded tube.
[0016] As a further improvement of this utility model, the driving component includes:
[0017] The screws are two in number, located on the left and right sides of the liquid inlet end, and the upper end of the screws is fixedly provided with a support shaft. The upper end of the support shaft is screwed onto the inner top surface of the fixed frame through a bearing.
[0018] The spiral tubes are two in number, each being threadedly screwed onto a corresponding screw rod, and the bottom end of the spiral tube is fixedly mounted on the horizontal end of the movable frame.
[0019] Two rotating gears are respectively fitted onto and fixed on the support shaft;
[0020] The rotating ring is located between the rotating gear and the vertical end of the fixed frame, and the upper end of the rotating ring is screwed into the horizontal end of the fixed frame via a bearing.
[0021] A rotating gear ring is fixedly disposed on the lower side of a rotating ring, and the rotating gear ring is meshed with a rotating gear.
[0022] The transmission assembly, wherein the rotating assembly is disposed on one side of the rotating gear ring;
[0023] Through the above technical solution design, the transmission group drives the rotating gear ring to rotate around the screw joint center on the upper side of the rotating ring, drives the rotating gear to rotate the support shaft, rotates the screw, drives the solenoid tube, and moves the movable frame.
[0024] As a further improvement of this utility model, the transmission assembly consists of a transmission gear, a transmission shaft and a turntable; the transmission gear is meshed on the inner side of the rotating gear ring, and the transmission shaft is inserted and fixed inside the transmission gear; the upper end of the transmission shaft is screwed through the horizontal end of the fixed frame via a bearing and then a turntable is provided; the pin passes through the turntable and is inserted into the fixed frame.
[0025] Through the above technical solution design, the turntable is manually rotated, the transmission shaft drives the transmission gear to rotate, and the rotating gear ring is driven to rotate.
[0026] The working principle of this utility model is as follows: After the spray bottle is screwed onto the inlet end, the turntable is manually rotated, and the transmission shaft drives the transmission gear to rotate, which in turn drives the rotating gear ring. The rotating gear ring rotates around the screw-on center at the upper end of the rotating ring, driving the rotating gear to rotate the support shaft, which in turn drives the screw rod to rotate, driving the screw tube to move the movable frame downwards until the bottom of the vertical end of the movable frame contacts the horizontal end of the support frame. The pin is then manually inserted into the turntable and into the fixed frame to position the transmission shaft. The movable threaded tube is then manually rotated to rotate and move on the fixed threaded rod until it is inserted into the movable frame to position the movable frame.
[0027] Compared with the prior art, the beneficial effects of this utility model are:
[0028] 1. Based on the existing threaded connection between the spray bottle and the liquid inlet, add a movable frame and a support frame. The movable frame is placed between the spray bottle and the support frame, and the stability between the spray bottle and the liquid inlet is strengthened by positioning and tightening the movable frame.
[0029] 2. Add a fixed frame to the upper side of the movable frame. The fixed frame is fixed to the liquid inlet end. The movable frame can be moved and positioned by setting a transmission structure inside the fixed frame.
[0030] 3. Manually rotate the movable threaded tube to make it rotate and move on the fixed threaded rod until it is inserted into the movable frame, thereby strengthening the stability of the movable frame and improving the fixation between the spray bottle and the liquid inlet. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of this utility model.
[0032] Figure 2 yes Figure 1 Enlarged view of part A.
[0033] Figure 3 This is a schematic diagram of the internal structure of the liquid inlet end connected to the spray bottle in this utility model.
[0034] Figure 4 yes Figure 3 Enlarged view of part B.
[0035] Figure 5 yes Figure 3 Enlarged view of part C.
[0036] Figure 6This utility model presents a schematic diagram of the connection structure of the liquid inlet end, movable frame, and support frame.
[0037] Explanation of reference numerals in the attached figures:
[0038] Gun body 1, liquid inlet 1-1, spray bottle 2, support frame 3, fixed frame 4, movable frame 5, slide rail 6, drive assembly 7, screw 7-1, screw tube 7-2, rotating gear 7-3, rotating ring 7-4, rotating gear ring 7-5, transmission assembly 7-6, transmission gear 7-7, transmission shaft 7-8, turntable 7-9, fixed threaded rod 8, movable threaded tube 9, handle 10. Detailed Implementation
[0039] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0040] Example 1
[0041] Please see Figures 1-6 In this embodiment, it includes a gun body 1, and the liquid inlet end 1-1 of the gun body 1 is fitted with a spray bottle 2 by a threaded connection.
[0042] Also includes:
[0043] Support frame 3, which is sleeved and fixed on spray bottle 2;
[0044] Fixing bracket 4, which is sleeved and fixed on the liquid inlet end 1-1, and is located on the upper side of the spray bottle 2;
[0045] The movable frame 5 is movably sleeved on the liquid inlet end 1-1, and the horizontal end of the movable frame 5 is located between the fixed frame 4 and the spray bottle 2. The liquid inlet end 1-1 is provided with slide rails 6 on the left and right sides respectively. The slide rails 6 are in contact with the upper side of the spray bottle 2, and the movable frame 5 is slidably located on the slide rails 6. The vertical end of the movable frame 5 is located between the spray bottle 2 and the support frame 3.
[0046] Drive component 7, which is disposed inside the fixing frame 4;
[0047] The fixed threaded rod 8, wherein there are two fixed screws 7-1, which are respectively fixed on the inner ring wall of the support frame 3 from the left and right sides;
[0048] Two movable threaded tubes 9 are provided, which are respectively threaded and sleeved on the fixed threaded rod 8, and the inner end of the movable threaded tube 9 is inserted into the movable frame 5; a handle 10 is provided on the movable threaded tube 9.
[0049] Through the above technical solution design, after the spray bottle 2 is screwed onto the liquid inlet end 1-1, the drive component 7 drives the movable frame 5 so that the vertical end of the movable frame 5 is positioned between the spray bottle 2 and the support frame 3. The movable threaded tube 9 is manually rotated to rotate and move on the fixed threaded rod 8 until it is inserted into the movable frame 5 to position the movable frame 5.
[0050] Example 2
[0051] Please see Figures 1-6 Based on Embodiment 1, the driving component 7 is further improved and includes:
[0052] Screw 7-1, there are two screws 7-1, which are set on the left and right sides of the liquid inlet end 1-1, and the upper end of the screw 7-1 is fixedly provided with a support shaft, and the upper end of the support shaft is screwed to the inner top surface of the fixed frame 4 through a bearing;
[0053] There are two screw tubes 7-2, which are respectively threaded and sleeved on the corresponding screw rods 7-1, and the bottom end of the screw tube 7-2 is fixedly set on the horizontal end of the movable frame 5.
[0054] Rotating gear 7-3, there are two rotating gears 7-3, which are respectively sleeved and fixed on the support shaft;
[0055] The rotating ring 7-4 is located between the rotating gear 7-3 and the vertical end of the fixed frame 4, and the upper end of the rotating ring 7-4 is screwed into the horizontal end of the fixed frame 4 via a bearing.
[0056] Rotate the gear ring 7-5, which is fixedly disposed on the lower side of the rotating ring 7-4, and the rotating gear ring 7-5 is meshed with the rotating gear 7-3;
[0057] The transmission group 7-6, wherein the rotating group is located on one side of the rotating gear ring 7-5; the transmission group 7-6 is composed of a transmission gear 7-7, a transmission shaft 7-8 and a turntable 7-9; the transmission gear 7-7 is meshed inside the rotating gear ring 7-5, and the transmission shaft 7-8 is inserted and fixed inside the transmission gear 7-7; the upper end of the transmission shaft 7-8 is screwed through the horizontal end of the fixed frame 4 via a bearing, and the turntable 7-9 is provided thereon; the pin passes through the turntable 7-9 and is inserted into the fixed frame 4.
[0058] Through the above technical solution design, the transmission group 7-6 drives the rotating gear ring 7-5 to rotate around the screw connection center on the upper side of the rotating ring 7-4, drives the rotating gear 7-3 to rotate the support shaft, rotates the screw 7-1, and drives the solenoid tube 7-2 to move the movable frame 5.
[0059] When using this utility model, after the spray bottle 2 is threaded onto the inlet end 1-1, the turntable 7-9 is manually rotated. The transmission shaft 7-8 drives the transmission gear 7-7 to rotate, which in turn drives the rotating gear ring 7-5. The rotating gear ring 7-5 rotates around the threaded center at the upper end of the rotating ring 7-4, which drives the rotating gear 7-3, causing the support shaft to rotate. This drives the screw 7-1 to rotate, which in turn drives the screw tube 7-2, causing the movable frame 5 to move downwards until the bottom of the vertical end of the movable frame 5 contacts the horizontal end of the support frame 3. The pin is then manually inserted into the turntable 7-9 and into the fixed frame 4, positioning the transmission shaft 7-8. The movable threaded tube 9 is then manually rotated, causing it to rotate and move on the fixed threaded rod 8 until it is inserted into the movable frame 5, thus positioning the movable frame 5.
[0060] Compared with the prior art, the beneficial effects of this utility model are:
[0061] 1. Based on the existing threaded connection between the spray bottle 2 and the liquid inlet 1-1, add a movable frame 5 and a support frame 3. The movable frame 5 is placed between the spray bottle 2 and the support frame 3. The stability between the spray bottle 2 and the liquid inlet 1-1 is strengthened by positioning and tightening the movable frame 5.
[0062] 2. A fixed frame 4 is added to the upper side of the movable frame 5. The fixed frame 4 is fixed to the liquid inlet 1-1. The movable frame 5 can be moved and positioned by setting a transmission structure inside the fixed frame 4.
[0063] 3. Manually rotate the movable threaded tube 9 to rotate and move it on the fixed threaded rod 8 until it is inserted into the movable frame 5 to strengthen the stability of the movable frame 5 and improve the fixation between the spray bottle 2 and the liquid inlet end 1-1.
[0064] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1.A portable handheld sprayer comprising a gun body (1), a liquid inlet end (1-1) of the gun body (1) is provided with a spray pot (2) through threaded connection; it further comprises: a support frame (3) which is sleeved and fixed on the spray pot (2); a fixed frame (4) which is sleeved and fixed on the liquid inlet end (1-1) and is arranged on the upper side of the spray pot (2); a movable frame (5) which is movably sleeved on the liquid inlet end (1-1) and the horizontal end of the movable frame (5) is arranged between the fixed frame (4) and the spray pot (2), the liquid inlet end (1-1) is provided with slide rails (6) on the left and right sides, the movable frame (5) is slidably arranged on the slide rails (6), and the vertical end of the movable frame (5) is arranged between the spray pot (2) and the support frame (3); a drive assembly (7) which is arranged in the fixed frame (4); fixed threaded rods (8) which are two in number and are fixedly arranged on the inner ring wall of the support frame (3) on the left and right sides respectively; movable threaded pipes (9) which are two in number and are sleeved on the fixed threaded rods (8) through threaded connection, and the inner ends of the movable threaded pipes (9) are inserted into the movable frame (5). characterized in that The slide rails (6) are arranged on the upper side of the spray pot (2). The movable threaded pipes (9) are provided with handles (10). The drive assembly (7) comprises: screw rods (7-1) which are two in number, are arranged on the left and right sides of the liquid inlet end (1-1), and are fixedly provided with support shafts on the upper ends, the upper ends of the support shafts are rotatably arranged on the inner top surface of the fixed frame (4) through bearings; screw pipes (7-2) which are two in number, are sleeved on the corresponding screw rods (7-1) through threaded connection, and are fixedly arranged on the horizontal end of the movable frame (5); rotating gears (7-3) which are two in number and are sleeved and fixed on the support shafts; rotating rings (7-4) which are arranged between the rotating gears (7-3) and the vertical end of the fixed frame (4), and the upper ends of the rotating rings (7-4) are rotatably arranged in the horizontal end of the fixed frame (4) through bearings; rotating gear rings (7-5) which are fixedly arranged on the lower side of the rotating rings (7-4) and are rotatably arranged in mesh with the rotating gears (7-3); a transmission group (7-6) which is arranged on one side of the rotating gear ring (7-5). The transmission group (7-6) is composed of a transmission gear (7-7), a transmission shaft (7-8) and a rotating disc (7-9); the transmission gear (7-7) is rotatably arranged on the inner side of the rotating gear ring (7-5), the transmission shaft (7-8) is rotatably arranged in the transmission gear (7-7), the upper end of the transmission shaft (7-8) is rotatably arranged through the horizontal end of the fixed frame (4) through a bearing, and the rotating disc (7-9) is arranged on the upper end of the transmission shaft (7-8), and the bolt is rotatably arranged in the fixed frame (4). 2. A portable hand-held sprayer according to claim 1, wherein: 3. A portable hand-held sprayer according to claim 1, wherein: 4. The portable hand-held sprayer of claim 1, wherein: 5. A portable hand-held sprayer according to claim 4, wherein:
Citation Information
Patent Citations
Portable marked spray-painting device
CN101491966A