Rapid spraying device for dumbbell production

By designing gear racks and spacing adjustment components, the problem of dead corners in the coating process during dumbbell transportation is solved, achieving uniform coating on the dumbbell surface and preventing it from falling off, thus adapting to the needs of dumbbells of different sizes.

CN223996378UActive Publication Date: 2026-03-17NANTONG HUAMIN SPORTING GOODS CO LTD
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Patent Information

Application Number
CN202520605199.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-17
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

The existing dumbbells are prone to crushing the conveyor belt during the conveying process, resulting in blind spots in the spraying and making it impossible to spray effectively.

Method used

It adopts a gear and rack structure and a spacing adjustment component. The rotation of the gear drives the rack and spacing adjustment component to move, suspending dumbbells. It is simultaneously suspended by two U-shaped connecting rods and limited by positioning seats to avoid spraying dead corners and falling.

Benefits of technology

It effectively avoids blind spots in the spraying process, ensures uniform coating on the dumbbell surface, prevents paint from falling off, and adapts to the hanging needs of dumbbells of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dumbbell production, and discloses a quick spraying device for dumbbell production, which comprises a spraying box, a T-shaped guide rail is fixedly mounted at the top of the spraying box, the T-shaped guide rail is disconnected from the front and back of the middle part, a rack is slidably arranged on the inner side of the T-shaped guide rail, a gear is rotatably arranged on the inner side of the T-shaped guide rail, and the rack is connected with the gear. The multiple gears are arranged at equal intervals, the gap between every two adjacent gears is smaller than the length of the racks, rotating shafts are fixedly installed on the inner walls of the gears, the rotating shafts are driven by the driving part to rotate, then the gears are driven to rotate, the gears rotate to push the racks making contact with the gears to move, and then the interval adjusting part is driven to move. The distance adjusting component moves to drive the U-shaped connecting rod to move, then the dumbbell hung on the U-shaped connecting rod is driven to move, the dumbbell is moved in a hanging moving mode, and the problem that obvious spraying dead corners exist due to the fact that the dumbbell presses the conveying belt can be effectively solved.
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Description

Technical Field

[0001] This utility model relates to the field of dumbbell production technology, specifically a rapid spraying device for dumbbell production. Background Technology

[0002] Fitness equipment is often categorized into two main types based on the number of training functions: single-function and multi-functional. Commonly used equipment includes rowing machines, exercise bikes, steppers, treadmills, and waist trimmers. Dumbbells, an auxiliary tool for weightlifting and fitness exercises, are smaller than barbells and are therefore popular among fitness enthusiasts. Currently, dumbbells require surface anti-oxidation coating before leaving the factory. However, during the transport of dumbbells, the weight of the dumbbells easily deforms the conveyor belt, causing noticeable indentations at the contact point between the dumbbell and the conveyor belt, which prevents the coating from being applied. Utility Model Content

[0003] The purpose of this invention is to provide a rapid spraying device for dumbbell production, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rapid spraying device for dumbbell production, comprising a spraying box, a T-shaped guide rail fixedly installed on the top of the spraying box, the T-shaped guide rail being broken from the middle section, a rack slidably arranged on the inner side of the T-shaped guide rail, a gear rotatably arranged on the inner side of the T-shaped guide rail, multiple gears equally spaced, and the gap between adjacent gears being less than the length of the rack, a rotating shaft fixedly installed on the inner wall of the gear, the rotating shaft being rotatably connected to the spraying box through a bearing, a driving component being driven by the rotating shaft, the rack meshing with the gear, a spacing adjustment component fixedly installed at the bottom of the rack, and a U-shaped connecting rod fixedly connected to both movable ends of the spacing adjustment component.

[0005] Furthermore, the driving component includes a geared motor, which is fixedly mounted on the spray box. A connecting shaft is fixedly mounted on the output end of the geared motor. A worm gear is fixedly sleeved on the outer wall of the connecting shaft. The worm gear meshes with a worm wheel, which is fixedly mounted on the outer wall of the rotating shaft.

[0006] Furthermore, the spacing adjustment component includes a T-shaped housing, which is fixedly installed at the bottom of the rack. The inner wall of the T-shaped housing is rotatably connected to a bidirectional threaded rod via a bearing. The outer wall of the bidirectional threaded rod is threaded with a slider, and there are two sliders on one bidirectional threaded rod. The two sliders are symmetrically distributed about the center of the bidirectional threaded rod. The sliders are fixedly connected to a U-shaped connecting rod.

[0007] Furthermore, a positioning seat is fixedly sleeved on the outer wall of the U-shaped connecting rod, and three positioning seats are provided on the same U-shaped connecting rod, with the three positioning seats evenly distributed on the U-shaped connecting rod.

[0008] Furthermore, both ends of the bidirectional threaded rod extend from the T-shaped housing, and both ends of the bidirectional threaded rod are fixedly equipped with a throttle handle.

[0009] Furthermore, an upper spraying assembly and a lower spraying assembly are fixedly installed on the inner wall of the spraying box. The upper spraying assembly is located above the U-shaped connecting rod, and the lower spraying assembly is located below the U-shaped connecting rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The drive component drives the rotating shaft to rotate, which in turn drives the gear to rotate. The rotation of the gear will push the rack in contact with it to move, which in turn drives the spacing adjustment component to move. The movement of the spacing adjustment component drives the U-shaped connecting rod to move, which in turn drives the dumbbell suspended on the U-shaped connecting rod to move. Moving the dumbbell by suspension can effectively avoid the problem of obvious spraying dead corners caused by the dumbbell pressing on the conveyor belt.

[0012] 2. Because the dumbbells are suspended by two U-shaped connecting rods, the problem of the dumbbells falling can be effectively avoided. The distance between the two U-shaped connecting rods can be adjusted by the distance adjustment component to suspend dumbbells of different sizes. Because the gap between adjacent gears is less than the length of the rack, the rack can be engaged by at least one gear.

[0013] 3. Positioning seats are set to lock the dumbbell grip bar, which can effectively prevent the dumbbell from slipping. Three positioning seats are set to limit the movement of at least three dumbbells at the same time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A structural diagram of the right side view;

[0016] Figure 3 This is a schematic diagram of the structure of the drive component, rotating shaft, gear, and T-shaped guide rail of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the gear, rack, pitch adjustment component, and U-shaped connecting rod of this utility model;

[0018] Figure 5 This utility model Figure 4 A structural diagram from the bottom (view from below).

[0019] In the diagram: 1. Spraying box; 2. T-shaped guide rail; 3. Gear; 4. Rotating shaft; 5. Drive component; 501. Gear motor; 502. Connecting shaft; 503. Worm gear; 504. Worm wheel; 6. Rack; 7. Spacing adjustment component; 701. T-shaped housing; 702. Slider; 703. Bidirectional threaded rod; 8. U-shaped connecting rod; 9. Positioning seat; 10. Upper spraying assembly; 11. Lower spraying assembly. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a rapid spraying device for dumbbell production, including a spraying box 1. A T-shaped guide rail 2 is fixedly installed on the top of the spraying box 1, and the T-shaped guide rail 2 is broken from the middle. A rack 6 is slidably arranged on the inner side of the T-shaped guide rail 2, and a gear 3 is rotatably arranged on the inner side of the T-shaped guide rail 2. Multiple gears 3 are evenly spaced, and the gap between adjacent gears 3 is less than the length of the rack 6. A rotating shaft 4 is fixedly installed on the inner wall of the gear 3. The rotating shaft 4 is rotatably connected to the spraying box 1 through a bearing. A driving component 5 is driven by the rotating shaft 4. The rack 6 meshes with the gear 3. A spacing adjustment component 7 is fixedly installed on the bottom of the rack 6. U-shaped connecting rods 8 are fixedly connected to both movable ends of the spacing adjustment component 7. The driving component 5 drives the device. The rotating shaft 4 rotates, which in turn drives the gear 3 to rotate. The rotation of the gear 3 pushes the rack 6 in contact with it to move, which in turn drives the spacing adjustment component 7 to move. The movement of the spacing adjustment component 7 drives the U-shaped connecting rod 8 to move, which in turn drives the dumbbell suspended on the U-shaped connecting rod 8 to move. Moving the dumbbell by suspension can effectively avoid the problem of obvious spraying dead corners caused by the dumbbell pressing on the conveyor belt. Moreover, since the dumbbell is suspended by two U-shaped connecting rods 8 at the same time, it can effectively prevent the dumbbell from falling. The spacing between the two U-shaped connecting rods 8 can be adjusted by the spacing adjustment component 7 to suspend dumbbells of different sizes. Because the gap between adjacent gears 3 is less than the length of the rack 6, the rack 6 can be engaged by at least one gear 3.

[0022] The drive component 5 includes a geared motor 501, which is fixedly mounted on the spray box 1. A connecting shaft 502 is fixedly mounted on the output end of the geared motor 501. A worm gear 503 is fixedly sleeved on the outer wall of the connecting shaft 502. The worm gear 503 meshes with a worm wheel 504, which is fixedly mounted on the outer wall of the rotating shaft 4. The geared motor 501 drives the connecting shaft 502 to rotate, which in turn drives the worm gear 503 to rotate. The rotation of the worm gear 503 drives the worm wheel 504 to rotate, which in turn drives the rotating shaft 4 to rotate, so that all the rotating shafts 4 rotate in the same direction at the same speed, thereby ensuring that all the gears 3 can mesh with the rack 6.

[0023] The spacing adjustment component 7 includes a T-shaped housing 701, which is fixedly installed at the bottom of the rack 6. The inner wall of the T-shaped housing 701 is rotatably connected to a bidirectional threaded rod 703 via a bearing. The outer wall of the bidirectional threaded rod 703 is threaded with a slider 702, and there are two sliders 702 on one bidirectional threaded rod 703. The two sliders 702 are symmetrically distributed about the center of the bidirectional threaded rod 703. The sliders 702 are fixedly connected to the U-shaped connecting rod 8. By rotating the bidirectional threaded rod 703, the sliders 702 move in different directions, thereby driving the corresponding U-shaped connecting rod 8 to move, which is used to adjust the spacing between the two U-shaped connecting rods 8.

[0024] A positioning seat 9 is fixedly sleeved on the outer wall of the U-shaped connecting rod 8, and three positioning seats 9 are provided on the same U-shaped connecting rod 8. The three positioning seats 9 are evenly distributed on the U-shaped connecting rod 8. The positioning seats 9 are used to lock the grip part of the dumbbell, which can effectively prevent the dumbbell from sliding. The three positioning seats 9 are used to limit at least three dumbbells at the same time.

[0025] Both ends of the bidirectional threaded rod 703 extend from the T-shaped housing 701, and both ends of the bidirectional threaded rod 703 are fixedly equipped with a throttle handle, making it convenient for workers to rotate the bidirectional threaded rod 703.

[0026] The inner wall of the spray box 1 is fixedly equipped with an upper spraying assembly 10 and a lower spraying assembly 11. The upper spraying assembly 10 is located above the U-shaped connecting rod 8, and the lower spraying assembly 11 is located below the U-shaped connecting rod 8. It is used to spray from both the upper and lower directions to improve spraying efficiency.

[0027] Working principle: In use, rotating the bidirectional threaded rod 703 moves the slider 702, adjusting the spacing of the U-shaped connecting rod 8. Then, the corresponding rack 6 is inserted into the T-shaped guide rail 2 (at this time, the rack 6 is not in contact with the first gear 3). The dumbbell is then suspended on the U-shaped connecting rod 8, and the dumbbell's grip is engaged in the positioning seat 9. The rack 6 is then pushed, causing it to mesh with the first gear 3. The reduction motor 501 is turned on, driving the connecting shaft 502 to rotate, which in turn drives the worm gear 503 to rotate. The rotation of the worm gear 503 drives the worm wheel 504 to rotate, which in turn drives the rotating shaft 4 to rotate. The rotation of the gear 3 pushes the rack 6 to move, which in turn drives the spacing adjustment component 7 to move. The movement of the spacing adjustment component 7 drives the U-shaped connecting rod 8 to move, which in turn moves the dumbbell to the spraying area. Spraying is then performed. After the rack 6 is pushed out by the last gear 3, the rack 6 is pulled out from the T-shaped guide rail 2, and the dumbbell can be removed from the U-shaped connecting rod 8.

[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A rapid spraying device for dumbbell production, comprising a spraying box (1), characterized in that: The top of the spraying box (1) is fixedly provided with a T-shaped guide rail (2), the T-shaped guide rail (2) is disconnected from the middle part, a rack (6) is slidably arranged on the inner side of the T-shaped guide rail (2), a plurality of gears (3) are rotatably arranged on the inner side of the T-shaped guide rail (2), the adjacent gears (3) are arranged at equal intervals, the gap between the adjacent gears (3) is smaller than the length of the rack (6), a rotating shaft (4) is fixedly arranged on the inner wall of the gear (3), the rotating shaft (4) is rotatably connected with the spraying box (1) through a bearing, a driving part (5) is drivingly connected with the rotating shaft (4), the rack (6) is meshed with the gear (3), a spacing adjusting part (7) is fixedly arranged on the bottom of the rack (6), and the two movable ends of the spacing adjusting part (7) are fixedly connected with U-shaped connecting rods (8).

2. The rapid spraying device for producing dumbbell according to claim 1, characterized in that: The driving part (5) comprises a speed reducer (501), the speed reducer (501) is fixedly arranged on the spraying box (1), a connecting shaft (502) is fixedly arranged on the output end of the speed reducer (501), a worm (503) is fixedly arranged on the outer wall of the connecting shaft (502), a worm wheel (504) is meshed with the worm (503), and the worm wheel (504) is fixedly arranged on the outer wall of the rotating shaft (4).

3. The rapid spraying device for producing dumbbell according to claim 1, characterized in that: The spacing adjusting part (7) comprises a T-shaped shell (701), the T-shaped shell (701) is fixedly arranged on the bottom of the rack (6), a bidirectional threaded rod (703) is rotatably connected with the inner wall of the T-shaped shell (701) through a bearing, a sliding block (702) is threadedly arranged on the outer wall of the bidirectional threaded rod (703), and two sliding blocks (702) are arranged on one bidirectional threaded rod (703), and the two sliding blocks (702) are symmetrically distributed about the center of the bidirectional threaded rod (703), and the sliding block (702) is fixedly connected with the U-shaped connecting rod (8).

4. The rapid spraying device for producing dumbbell according to claim 1, characterized in that: The outer wall of the U-shaped connecting rod (8) is fixedly provided with a positioning seat (9), and three positioning seats (9) are arranged on the same U-shaped connecting rod (8), and the three positioning seats (9) are arranged at equal intervals on the U-shaped connecting rod (8).

5. The rapid spraying device for producing dumbbell according to claim 3, characterized in that: The left and right ends of the bidirectional threaded rod (703) are arranged to extend out of the T-shaped shell (701), and the left and right ends of the bidirectional threaded rod (703) are fixedly provided with a handle.

6. The rapid spraying device for producing dumbbell according to claim 1, characterized in that: The inner wall of the spraying box (1) is fixedly provided with an upper spraying assembly (10) and a lower spraying assembly (11), the upper spraying assembly (10) is located above the U-shaped connecting rod (8), and the lower spraying assembly (11) is located below the U-shaped connecting rod (8).